• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a lighting system that integrates energy management. The lighting system comprises an operating device (4) for operating at least one light source (3) and at least one energy store (5). The operating device (4) can operate the lighting means (3) in regular operation or in emergency lighting operation. In addition, the lighting system comprises control means (8) for switching the operating device (4) into a first operating mode and a second operating mode. In the first operating mode, the lighting means (3) is supplied with energy from the energy store (5). In the second operating mode, the lighting means (3) is supplied with electrical energy from an energy source other than the energy store (5). The control means (8) is set up to switch the operating device (4) from the first to the second operating mode when a defined lower limit value for the energy content of the energy store (5) is reached by removing energy.
    公开号:AT16856U1
    申请号:TGM352/2015U
    申请日:2015-11-30
    公开日:2020-11-15
    发明作者:
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    LIGHTING SYSTEM WITH ENERGY MANAGEMENT FUNCTION AND PROCEDURE FOR ITS OPERATION
    The present invention relates to a lighting system, in particular for a building, which can perform lighting functions in a regular operating mode and ensures emergency lighting in the event of failure of the power supply to the building and into which an energy management function is integrated, and a method for its operation.
    It is known that variable tariffs for billing the electricity consumed by a customer can be used in power supply networks. There are payment models with variable electricity tariffs in which different prices are charged for the energy drawn at different times. For example, electricity can be purchased at night at cheaper rates than is the case during the day. In the case of some household appliances, the consumer can use a corresponding remuneration model with variable tariffs by switching on certain devices at night at a cheaper tariff. For example, it is possible to program washing machines or dishwashers so that they run at night and thus take advantage of cheaper tariffs.
    Furthermore, emergency lighting systems are installed in buildings in certain cases or the provision of a corresponding emergency lighting system is officially or under insurance law.
    Emergency lighting systems are used to ensure a minimum level of lighting in the event of a failure of the mains supply in rooms in which lamps supplied with mains voltage are installed.
    Such emergency lighting systems are able to monitor an applied mains supply voltage and to ensure emergency lighting operation as soon as regular operation is no longer possible due to a failure of the mains supply voltage. For emergency lighting, z. B. used a battery integrated in the lamp to supply power to the lamps. For this purpose, the accumulator of an emergency lighting system is supplied with a defined amount of electrical energy to ensure emergency lighting operation over a defined period of time. This is achieved by periodically checking the amount of energy stored and, if necessary, recharging the accumulator.
    [0006] The defined charge level of the energy store is determined by a predetermined minimum duration of the emergency lighting at a likewise predetermined illuminance.
    The object of the present invention is to improve the lighting system in terms of a variable use of energy sources.
    [0008] The object is achieved by a lighting system according to claim 1 and a method for its operation.
    A lighting system according to the invention comprises an operating device for operating at least one light source and at least one energy store. The operating device allows the at least one lamp to be operated both in emergency lighting mode and in regular mode. Regular operation is any operation that is usually intended to illuminate rooms or areas, i.e. an operation that takes place or would be possible through the power grid and in which the desired on / off state or the brightness is based on a user specification or a control algorithm, in contrast to emergency lighting, regardless of the user and control algorithm when one is recognized Power failure is illuminated. The lighting system further comprises a control means which is designed to switch the operating device in regular operation to a first operating mode in which the light source is supplied from the energy store or to switch it on to a second operating mode in which the light source is supplied from another energy source, e.g. . B. the normal power supply of a building or an outdoor area is supplied. The
    Control means switches the operating device from the first to the second operating mode when the energy content of the energy store reaches a specified lower limit due to the removal of energy.
    The object is further achieved by a corresponding method for operating at least one lighting means in the lighting system.
    In (first) periods of time in which an energy supplier demands higher prices for the supply of electrical energy, the light source or a lamp from the energy store can thus be operated (supplied) and at low supply prices through the flexible regular operation Stored energy can be used for regular lighting purposes, i.e. normal operation, as it is usually realized from the power supply network. Such lighting purposes in this context are, for example, the illumination of a room according to user specifications (on / off; dimming value specification; time control; ...).
    If a specified lower limit value for the energy content of the energy store is reached in this first operating mode, a switch is made to the second operating mode in which the energy store is not further discharged. There is always enough remaining energy available in the energy store for emergency lighting.
    In (second) time periods in which an energy supplier offers cheaper prices for the supply of electrical energy than is the case in the (first) time periods discussed in the previous section, the energy store can then be recharged. In contrast to a known lighting system with emergency lighting, the lighting means can also be operated from the energy store in times of higher tariffs, although the mains supply - in contrast to emergency lighting - is still functional.
    In a lighting system according to the invention, it is thus possible to use existing energy storage and charging means (charging / discharging means) in an efficient manner in order to optimize costs for energy consumption.
    In particular, it is advantageous if the at least one lamp is designed as a light-emitting diode as one or a plurality of light-emitting diodes (LED). When using LEDs as lighting means, due to their typical operating voltages, an autonomous energy supply from an accumulator is identical to the provision of a low-voltage bus voltage by the first stage of a converter as the operating device for the LED.
    Another advantage of the lighting system according to the invention is that locally generated, in particular regenerative, energy can be used to charge the energy store, instead of feeding this excess, locally generated energy into the power supply network. This avoids a time-related or weather-related load or overloading of the supply networks through local intermediate storage in the existing energy store of the lighting system. Excess locally generated energy is the amount of energy that is not immediately consumed again in a generation period.
    [0017] Advantageous further developments of the invention are the subject of the dependent claims.
    The lighting system according to an advantageous embodiment is characterized in that it comprises a charging means suitable for charging the energy store and the charging means charges the energy store beyond the specified lower limit value.
    According to a further aspect of the lighting system, the control means is designed to switch the operating device, which comprises the charging means, into a charging operating mode.
    The control means is preferably designed to receive data on time-dependent electricity tariffs and / or to read the data on time-dependent electricity tariffs from a memory and / or to receive data on locally generated excess energy and / or to determine data on locally generated excess energy .
    Locally generated excess energy is in this context, for example, energy from an alternative energy source such as photovoltaic, wind power, combined heat and power systems, etc., which is generated in the immediate vicinity of the lighting system and not via a public or private distribution network beyond a grid connection or feed-in point (based on a building. This can also be locally generated electrical energy, for example, which is a by-product of an industrial process.
    The control means can be designed to determine whether locally generated excess energy is available and, if locally generated excess energy is not available, to operate the lighting means in the first operating mode of the operating device.
    The control means can also be designed to determine whether locally generated excess energy is available, and, if locally generated excess energy is available, to charge the energy store. In this way, locally generated energy is stored and transmission losses for the energy generated when it is fed into the power grid are avoided.
    Furthermore, the control means can be designed to operate the lighting means from an energy content of the energy store lying above the specified lower limit value in the first operating mode, if at the current point in time a higher electricity price applies than the electricity price while the memory was charged. This is particularly easy to ensure if charging always takes place at times when electricity prices are lower.
    According to one embodiment of the lighting system according to the invention, the control means is designed to communicate via the Internet and / or via ripple control technology and / or via a carrier frequency system. This creates the possibility for the lighting system according to the invention to work in the first operating mode and second operating mode in accordance with the temporal distribution of the respective current electricity purchase tariffs and to adapt dynamically to changes in the variable tariffs. A connection to a communication network such as the Internet can be made using the IP protocol, for example.
    It is also advantageous if the emergency lighting system comprises an energy store consisting of several partial energy stores. In this case, several illuminants or lights are in turn combined into several groups of illuminants or lights, each with an associated partial energy store for supplying the relevant group of illuminants or lights.
    Another embodiment of the lighting system is characterized in that the energy store comprises one or more luminaire energy stores, and that at least one lighting means comprises a directly assigned luminaire energy store.
    In a further advantageous lighting system, the energy store comprises a central energy store for at least some of the lights of the entire lighting system, and the lights and illuminants of this part of the entire lighting system are supplied with electrical energy from the central energy store. For the other lights, additional energy storage units such as B. the luminaire energy storage are provided.
    In an advantageous embodiment of the invention, the lighting system comprises one or a plurality of light-emitting diodes as lighting means.
    [0030] The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings. Show it:
    FIG. 1 shows a schematic representation of a lighting system according to the invention,
    Figure 2 shows a schematic representation of a time-dependent tariff structure of an energy supply company,
    Figure 3 shows a schematic representation of a lighting system according to a further embodiment of the invention,
    FIG. 4 shows a schematic representation of a lighting system according to a further embodiment of the invention,
    Figure 5 is a schematic representation of a lighting system according to a further embodiment of the invention,
    FIG. 6 shows a schematic representation of a time-dependent generation of energy in connection with the energy content of an energy store of a lighting system according to the invention, and FIG
    FIG. 7 shows a flow diagram to illustrate a method for operating the lighting system in accordance with a further embodiment of the invention.
    The same reference symbols denote the same or corresponding elements. For reasons of illustration, repetition is largely dispensed with in the following description of advantageous exemplary embodiments.
    FIG. 1 shows a schematic representation of a lighting system 1 in accordance with an embodiment of the invention. The lighting system 1 is used to illuminate a building which, in the event of a failure of the supplying (electricity) network, is designed to maintain emergency lighting of the building from an energy store 5 for a defined period of time. To detect when it is necessary to switch from regular operation to emergency lighting operation, a mains-side supply voltage Usac = 230V, which is applied to a mains input 7 of an operating device 4 of the lighting system 1, can be monitored.
    For the lighting, the operating device 4 provides a lamp supply voltage at an output for operating one or more lamps 3.1, 3.2, ... 3.n or lights 2. The lamp supply voltage can be, for example, a direct voltage Upc. In Figure 1, without restricting the general validity, a single lamp 2 is shown comprising a plurality of lighting means 3.1, 3.2, .., 3.n. The lighting means 3.1, 3.2, .., 3.n can be LEDs, for example. The invention can also be used with a lamp 2 comprising a single lamp 3 and / or other types of lamps.
    The operating device 4 of the lighting system 1 also feeds a charging means 6 or integrates such a charging means 6, which is designed to control the charging of an energy store 5 and, if necessary, its discharging. The charging means 6 can furthermore be suitable for monitoring a charging state of the energy store 5. In particular, according to an embodiment of the lighting system 1 according to the invention, the charging means 6 can also determine the current state of charge of the energy store 5.
    The use of the energy store 5 in a lighting system 1 is dependent on an electrical state on the lines at the mains input 7, that is, a concern of the mains supply. In the event of a power failure (power failure) or a power failure, the operating device 4 is switched from regular operation to emergency lighting operation, that is to say to operating the emergency lighting fed from the energy store 5. A sufficient supply of the lighting means 3.1, .., 3.n with electrical energy is ensured. A grid fault in the above sense can be a grid undervoltage, a grid overvoltage, a change or fluctuation in a grid frequency of a grid AC voltage, the occurrence of harmonics, the occurrence of overvoltage peaks on the grid supply lines 7 or any combination of the grid faults listed above as an example.
    The lighting system 1 according to the invention also has a control means 8 (controller, control unit). This control means 8 implements essential functions of the lighting system 1 according to the invention and for this purpose has an external interface 9 in accordance with an exemplary embodiment shown in FIG. This external interface 9 can comprise, for example, a network connection via the Internet using the IP protocol and / or via a local network. Via this external interface 9, for example, data with information about time-dependent tariffs for the purchase of electricity can be sent
    Energy can be transmitted to the control means 8. Furthermore, the control means 8z. B. receive data on the availability of locally generated electrical energy via the external interface 9. These data can include current data on time-dependent tariffs and locally available electrical energy, as well as data and forecasts on future time-dependent tariffs and forecasts on locally available electrical energy.
    According to one aspect of the invention, one or more operating parameters of the lighting system 1 can be set via the external interface 9. An input / output unit, for example a computer, can be connected via this external interface 9. The external interface 9 can, for example, also be used to change the level of the defined lower limit value, which is required to secure a defined emergency lighting over a certain period of time. The lower limit value denotes the amount of energy that must at least be stored in the energy store 5 to secure the emergency lighting.
    Furthermore, the control means 8 can communicate via the external interface 9 with an intelligent meter, not shown in FIG.
    The intelligent meter (term "smart meter") is a meter for energy, in the present case a meter for electrical energy, which displays the actual energy consumption and the actual usage time via a network connection. The intelligent meter is also in a Certain embodiments of the intelligent meter are designed to automatically transmit the collected data to the energy supply company and enable the energy supply company to control the network and resources. At the same time, when using an intelligent meter, the end user can be offered time-dependent (variable) tariffs can in particular be load-variable or time-dependent tariffs.
    The integration of the intelligent meter in a communication network and for controlling the lighting system can for example take place via a carrier frequency system. A carrier frequency system (TFA) is a device for voice or data transmission over existing communication or power networks. Carrier frequency systems use carrier frequency technology, a method to make multiple use of existing transmission paths. The signals are additionally modulated onto the line via one or more carrier frequencies. Transmission via power grids is also known as "Powerline Communication" (PLC).
    The control means 8 of the lighting system 1 can also have additional interfaces, not shown in FIG. 1, to the lamp 2, the charging means 6 and the energy store 5. A charge state of the energy store 5 can be reported to the control means 8 directly from the energy store 5 or via a charging means 6. In accordance with a preferred embodiment of the lighting system 1 according to the invention, the operating device 4 can also be designed to implement the external interface 9 for the control means 8.
    The means discussed with reference to the schematic representation in FIG. 1, such as operating device 4, control means 8, charging means 6, ... are shown in FIG. 1 as separately executed functional units. In one exemplary embodiment, these functional units can also be arranged spatially separated and connected via a communication network, bus system, ... These functional units can also be implemented in at least one common circuit or a circuit which realizes the corresponding functions.
    For example, the functions of the control means 8 can be fully or partially integrated advantageously into the circuit components of the operating device 4. Furthermore, the charging means 6 can also be designed and arranged separately from the operating device 4 and the control means 8.
    In Figure 2, a schematic representation of a time-dependent tariff structure of an energy supply company is shown. The time is plotted on the abscissa 10 in the horizontal direction in the form of the days of the week Monday, Tuesday, Wednesday, ..., Sunday. In
    The time of day from midnight to midnight is shown in the direction of ordinate 11. The time-dependent tariff structure shown in FIG. 2 has a first tariff zone 12 with a first electricity tariff with a first electricity purchase price on the weekdays from Monday to Friday from 6:00 a.m. to 8:00 p.m. A second tariff zone 13.1, 13.2 applies to the times on the weekdays Monday to Friday from midnight to 6 a.m. and from 8 p.m. to midnight. The second tariff zone has a second electricity purchase price for each unit of energy drawn by the consumer (e.g. in euros per kilowatt hour). It is assumed for the further explanations that the first electricity purchase price of the first tariff zone 12 is greater than the second electricity purchase price of the second tariff zone 13.1, 13.2. The control means 8 according to the invention can thus charge the energy store 5 with electrical energy beyond the defined lower limit value 28 at a point in time in the second tariff zone 13.1, 13.2 in order to use the more favorable second electricity purchase price.
    The time-dependent tariff structure shown in Figure 2 shows a third tariff zone 14 on the days Saturday and Sunday from midnight to midnight. A third electricity purchase price applies in this third tariff zone 14.
    At a point in time during the first tariff zone 12, the control means 8 according to the invention will cause the lighting means 3.1, 3.2, ..., 3.n to be supplied with energy from the energy store 5, provided there is energy above a specified lower limit value 28 is stored in the energy store 5. In regular operation, the control means 8 causes the lighting system 1 to operate in the first operating mode as long as the amount of electrical energy stored in the energy store 5 exceeds the defined lower limit value 28.
    On the other hand, at a further point in time, which is within tariff zone 3, at which a cheaper electricity purchase price than during the first tariff zone 12 and the second tariff zone 13.1, 13.2 is assumed, the control means 8 prefers the energy storage device 5 using a free energy capacity load in the energy store 5 in a second operating mode with electrical energy from an energy source. The control means 8 will in particular also charge the energy store 5 during regular operation of the lighting means 3 in a second operating mode if electrical energy is already stored in the energy store 5 in excess of an amount corresponding to the fixed lower limit value 28.
    The time-dependent tariff structure according to FIG. 2 can be received, for example, via the external interface 9 as data that includes information about time-dependent tariffs. The time-dependent tariff structure can also be used via the external interface 9, e.g. B. can be changed (adapted) by means of a user input on an input / output device. In a further embodiment, a data memory is additionally or alternatively provided for the lighting system 1, which enables the information about time-dependent tariffs to be stored. The control means 8 can also be designed to query the corresponding information about time-dependent tariffs via the external interface 9.
    In FIG. 2, a time-dependent tariff structure with different reference prices for electrical energy is used to illustrate the invention. Without restricting the invention, other variables than just a time-dependent electricity purchase price can also be used for a situation-dependent switching to the first operating mode or the second operating mode. For example, the control means 8 can receive data with information about a current or forecast network load of a feeding (energy supply) network 15 via the external interface 9.
    In FIGS. 3, 4 and 5, exemplary embodiments of the lighting system 1 according to the invention are presented.
    A lighting system 1 'is shown in FIG. 3, which has a central energy store 5. The operating device 4 is supplied with AC voltage from the feeding network 15 via the network connection 7. The effective value of the AC mains voltage is, for example, 400 V between the outer conductors of a three-phase power supply network as the feeding network 15. A central electrical energy store 5 is in FIG
    Voltage level Ugatrt of 400 V provided. In emergency lighting operation, starting from this central energy store 5, the lights 2 of the lighting system 1 'are supplied with electrical energy via the operating device 4 via the charging means 6. In the first operating mode, as long as the charge level of the central energy store 5 has a charge level above the defined lower limit value 28, the operating device 4 and thus the lamp 2 are supplied with electrical energy in regular operation via the charging means 6.
    In addition, an intelligent counter 16 is shown in FIG. 3, which is connected to the operating device 4 (and / or control means 8) via the external interface 9. Via the external interface 9, the control means 8 can send data from the intelligent counter 16 for a decision about the operating mode to be switched, e.g. B. the first operating mode or the second operating mode, receive or query.
    FIG. 4 shows a lighting system 1 ″ which has a central energy store 5 '. The operating device 4' is supplied with AC voltage from the feeding network 15 via the network connection 7. The central electrical energy store 5 'is shown in FIG a voltage level Usatt at a level of 48 Voc. In emergency lighting operation, the lights 2.1, 2.2, 2 3 of the lighting system 1 ”are supplied with electrical energy from this central energy store 5 'via the charging means 6 and the operating device 4. In the first operating mode as long as the charge level of the central energy store 5 'has a charge level above a specified lower limit value 28, the operating device 4' and thus the lighting means 2.1, 2.2, 2.3 are supplied with electrical energy in regular operation via the charging means 6.
    Several groups of lights 2.1, 2.2, 2.3 are shown in FIG. Each group of lights 2.1, 2.2, 2.3, ... is fed with a direct voltage Upc2 via a group operating device 18.1, 18.2, 18.3 assigned to the group. The assigned group operating device 18.1, 18.2, 18.3 is in turn fed by the operating device 4 'with a voltage Upc +. The voltage level Upc1 of the embodiment shown in Figure 4 is z. B. elected to 48 Voc. The group operating devices 18.1, 18.2, 18.3 are supplied with the voltage Upc: via a connecting line 17 and generate a suitable direct voltage Upc2 therefrom to supply the lights 2.1, 2.2, 2.3, ....
    In Figure 5, a lighting system 1 ″ is shown, which has decentralized energy storage 5.1, 5.2. The operating device 4 ″ is supplied with the mains alternating voltage from the feeding network 15 via the mains connection 7. Several groups of lights 2.1, 2.2, 2.3, ... are shown in FIG. 5. Each group of lights 2.1, 2.2, 2.3, .. . is fed with a direct voltage Upoc2 via a respectively assigned group operating device 18.1 ', 18.2'. The assigned group operating device 18.1 ', 18.2' is in turn fed by the operating device 4 'with a voltage Uoc: 1. The voltage level Upc: that shown in FIG The group operating devices 18.1 ', 18.2' are supplied with the voltage Upc1 via a connecting line 17 and generate a suitable direct voltage Upc2 therefrom to supply the lights 2.1, 2.2, 2.3, .....
    The decentralized energy stores 5.1, 5.2 are provided in Figure 5 at a voltage level Ugatt of 48 Voc. In the emergency lighting operation, starting from these decentralized energy stores 5.1, 5.2, the respectively assigned lights 2.1, 2.2, 2.3 ... of the lighting system 1 "are supplied with electrical energy at a voltage level Upce2 via the charging means 6.1, 6.2. In the first operating mode the charge level of the decentralized energy stores 5.1, 5.2 has a charge level above the specified lower limit value 28, via the charging means 6.1, 6.2 the lights 2 are supplied with energy in regular operation with electrical energy from the decentralized energy stores 5.1, 5.2.
    The exemplary embodiment shown in FIG. 5 is suitable, for example, for arranging an assigned decentralized energy store 5.1, 5.2 for each floor of a building or each building part. Each decentralized energy store 5.1, 5.2 supplies a group of lights 2.1, 2.2, 2.3 of the respective floor or respective part of the building with electrical energy via an assigned charging device 6.1, 6.2. In Figure 5 is an embodiment for
    decentralized energy storage both for operation in emergency lighting and for the operation of lights 2.1, 2.2, 2.3 in regular operation in non-emergency lighting, i.e. the first mode of operation.
    A lighting system 1 according to the invention with central energy storage means 5 0 of the decentralized energy storage means 5.1, 5.2 can also be designed so that the energy stores 5, 5.1, 5.2 are arranged at a distance from heat-emitting operating devices 4 for lighting means 3.1, 3.2, 3.3. Thermal management for the components of the lighting system 1 is thus facilitated.
    The embodiment shown in Figure 5 can also be modified so that for each lamp 2.1, 2.2, 2.3 of the lighting system 1 "a separate energy store 5, or that at least for one of the lamps 2.1, 2.2, 2.3 one of the lamp directly associated luminaire energy store 5 is provided.
    FIG. 6 shows a schematic representation of the time-dependent generation and time-dependent consumption of electrical energy in connection with the energy content of the energy store 5 of a lighting system 1 according to the invention.
    In the upper part of FIG. 6, a curve of locally generated electrical energy 23 over a day is shown over time t on the abscissa 20. The energy generated is plotted on the ordinate of the upper part of FIG. It is clear from the upper part of FIG. 6 that a maximum of generated energy is available in a period 25 around noon on the day shown, while less energy is provided on the generation side at other times of the day shown. Such a course of a generated energy would be characteristic of an energy generation to which photovoltaic systems contribute to a large extent. Photovoltaic systems generate electrical energy from sunlight during the day and, when the sun is vertical, have a maximum of their energy generation at midday. Comparable generation processes can, for. B. also depending on the weather, even if other forms of energy generation are taken into account in different compositions.
    In the upper part 6, a curve of the local electrical energy consumption 24 is also plotted. In the example shown, it is assumed without restriction for the method according to the invention that the consumption of electrical energy also reaches a local maximum in a period around noon. However, as can be seen from FIG. 6, a time-dependent excess of locally generated electrical energy over the consumed electrical energy is available in the period 25 around noon of the day.
    In the lower section of FIG. 6, for an exemplary embodiment of the lighting system 1 according to the invention, a profile of the stored energy 26 in the energy store 5 is shown over time t. The stored energy is plotted on the ordinate 27 of the lower partial figure 6. A defined lower limit value 28 corresponding to a minimum energy required to ensure emergency lighting is shown in FIG. 6 as a horizontal line. This defined lower limit value 28 for the stored energy should, according to the invention, not be undershot as a result of the withdrawal of energy for regular operation. A stored amount of electrical energy beyond this, i.e. the amount of energy that corresponds to an amount of stored energy measured from the defined lower limit value 28 to the curve of the stored energy 26 in the energy store 5, can, however, be used for the method according to the invention for energy management.
    The lighting system 1 according to the invention can work in a (first) time segment 29 in the first operating mode. It is possible to operate the lighting means 3 with energy stored in the energy store 5, since an amount of stored electrical energy 26 that exceeds the defined lower limit value is available in the energy store 5. For regular operation, energy can therefore be drawn from the energy store 5 provided for emergency lighting operation in order to perform regular lighting tasks outside of emergency lighting operation. This ongoing extraction of electrical energy to the regular
    In the course of the stored energy 26 shown in FIG. 6, lighting leads to a continuous decrease in the stored energy in the energy store 5 in the time segment 29 with t <t; At a time t; 3 0, the stored energy in the energy store 5 has fallen to the defined lower limit value 28. The control means 8 switches the operating device 4 and the charging means 6 from the first operating mode to a second operating mode in which the lighting means 3 is powered by other energy sources, e.g. B. from the feeding supply network 15 is operated. The curve of the stored energy in the energy store 5 thus remains constant at the minimum necessary energy value 28 for times t greater than t; but less than t>.
    At a point in time t2 31 with t >> t1, as already discussed above with reference to the upper part of FIG. 6, there is an excess of locally generated energy over locally consumed energy. The control means 8 decides on the basis of this excess, locally generated energy and, at the same time, free storage capacity in the energy store 5, the operating device 4 or the energy store 5 in a (second) time segment 32 with t »<t < ts to load. Lighting requirements can be met in the period 32 with tz <t <ta in regular operation in the first operating mode, as is also the case in the period 29 with 0 <t. The lighting system 1 according to the invention charges the energy store 5 in the case shown in FIG Control means 8 detects excess, locally generated energy or is filled when energy is stored. In the case shown in FIG. 6, this is the case for a time segment 32 from t 1 to t z. The upper part of FIG. 6 shows that at a point in time t = ts the profile of the generated power 23 falls below the profile of the consumed power 24. For times t> ts, in the case shown in FIG. 6, the course of the locally generated energy 23 is below the course of the locally consumed energy 24. Thus, even with free storage capacity in the energy store 5 above the defined lower limit value 28, there is no locally generated energy excess energy available for storage. At the same time, for a (third) time segment 33 with t> ts, more electrical energy is stored in the energy store 5 than is required for the emergency lighting operation, since in the lower partial figure 6 the curve of the stored energy 26 runs above the defined lower limit value 28 . The control means 8 therefore switches the lighting system 1 according to the invention into the first operating mode or leaves the lighting system 1 in the first operating mode. In the first operating mode, energy drawn from the energy store 5 drives the lighting means 3 in regular operation in a time segment 33 in order to meet any lighting requirements that may be present. With reference to FIG. 6, an embodiment of the invention is shown, the control means 8 of which decides the first operating mode and the second operating mode based on the energy stored in an energy store 5 in relation to a defined lower limit value 28 for emergency lighting. The control means 8 switches the first and the second operating mode on the basis of the course of the locally generated energy 23 and the course of the locally consumed energy 24, as well as an available storage capacity in the energy store 5. Another exemplary embodiment in which the control means 8 based on tariff information in addition to or instead of the relative position of the course of the locally generated energy 23 to the locally consumed energy 24 switches a first operating mode and a second operating mode, is to be implemented according to FIG. FIG. 7 shows in a simplified flowchart the method according to the invention for operating a lighting system 1. In a step S1, an energy store 5 is charged. It is assumed here that the energy store 5 has free storage capacity and, for example, electrical energy is available as locally generated excess energy, as discussed by way of example with reference to FIG.
    For times t> ts, in the case shown in FIG. 6, the course of the locally generated energy 23 is below the course of the locally consumed energy 24 excess energy available for storage. At the same time, for a (third) time segment 33 with t> ts, more electrical energy is stored in the energy store 5 than is required for the emergency lighting operation, since in the lower partial figure 6 the curve of the stored energy 26 runs above the defined lower limit value 28 . The control means 8 therefore switches the lighting system 1 according to the invention into the first operating mode or leaves the lighting system 1 in the first operating mode. In the first operating mode, energy drawn from the energy store 5 drives the lighting means 3 in regular operation in a time segment 33 in order to meet any lighting requirements that may be present.
    With reference to FIG. 6, an embodiment of the invention is shown, the control means 8 of which decides the first operating mode and the second operating mode based on the energy stored in an energy store 5 in relation to a defined lower limit value 28 for emergency lighting. The control means 8 switches the first and the second operating mode on the basis of the course of the locally generated energy 23 and the course of the locally consumed energy 24, as well as an available storage capacity in the energy store 5.
    Another embodiment, in which the control means 8 based on tariff information in addition to or instead of the relative position of the course of the locally generated energy 23 to the locally consumed energy 24 switches a first operating mode and a second operating mode is corresponding to FIG 6 to execute.
    FIG. 7 shows in a simplified flowchart the method according to the invention for operating a lighting system 1. In a step S1, an energy store 5 is charged. It is assumed here that the energy store 5 has free storage capacity and, for example, electrical energy is available as locally generated excess energy, as discussed by way of example with reference to FIG.
    In a step S2 it is checked whether stored energy is available in the energy store 5 beyond a defined lower limit value 28 for the execution of a regular lighting operation. If stored energy is available in the energy store 5 beyond a specified lower limit value 28, the control means 8 will switch to the first operating mode and supply the lighting means 3 with electrical energy from the energy store 5 for regular operation in a step S3. If the control means 8 decides in step S2 that no stored energy is available in the energy store 5 beyond a defined lower limit value 28, the control means 8 will switch the operating device to the second operating mode. In this case, requirements for lighting in regular operation from a different energy source than the energy store 5, z. B. met through the operation of the lamp 3 from directly over the feeding power supply network 15 obtained energy.
    All of the above features can be advantageously combined with one another within the scope of the invention defined in the patent claims.
    权利要求:
    Claims (10)
    [1]
    1. A lighting system comprising an operating device (4) for alternately operating at least one lighting means (3) in an emergency lighting mode and in a regular mode and at least one energy store (5), further comprising a control means (8) designed for the operating device (4) for to switch the regular operation either to a first operating mode in which the light source (3) is supplied from the energy store (5), or to a second operating mode in which the light source (3) comes from an energy source other than the energy store (5) is supplied, wherein the control means (8) is designed to switch the operating device (4) from the first to the second operating mode when a specified lower limit value for the energy content of the energy store (5) is reached by removing energy.
    [2]
    2. Lighting system according to claim 1, characterized in that the lighting system has charging means (6) suitable for charging the energy store (5), and the charging means (6) is designed to charge the energy store (5) above the specified lower limit value.
    [3]
    3. Lighting system according to claim 2, characterized in that the charging means is integrated into the operating device (4), and the control means (8) is designed to switch the operating device (4) into a charging operating mode.
    [4]
    4. Lighting system according to one of claims 1 to 3, characterized in that the control means (8) is designed to receive data about time-dependent variable electricity tariffs and / or read out the data about time-dependent variable electricity tariffs from a memory and / or data about locally receive generated excess energy and / or determine data on locally generated excess energy.
    [5]
    5. Lighting system according to claim 4, characterized in that charging is initiated by the control means (8) at times which are determined on the basis of information about electricity tariffs.
    [6]
    6. Lighting system according to claim 4 or 5, characterized. that the control means (8) is designed to switch the operating device into the first operating mode as a function of the data on time-dependent electricity tariffs.
    [7]
    7. Lighting system according to one of claims 1 to 3, characterized in that the control means (8) is designed to determine whether a locally generated amount of energy is greater than a locally consumed amount of energy and if the locally generated amount of energy is less than or equal to locally consumed amount of energy is to switch the operating device (4) to the first operating mode.
    [8]
    8. Lighting system according to one of claims 1 to 7, characterized in that the control means (8) is designed to determine whether a locally generated amount of energy is greater than a locally consumed amount of energy, and to cause, if the locally generated amount of energy is greater, the energy store (5) is charged beyond the specified lower limit value for the energy content.
    [9]
    9. Lighting system according to one of claims 1 to 8, characterized in that the control means (8) is designed to communicate via the Internet and / or via ripple control technology and / or via a carrier frequency system.
    [10]
    10. A method for alternately operating at least one lighting means (3) in an emergency lighting mode and a regular mode, comprising an operating device (4), at least one energy store (5), and a control means (8), the method comprising the following steps:
    Switching the operating device (4) into a first operating mode in which the lighting means (3) is supplied from the energy store (5) for regular operation, and
    when a specified lower limit value for the energy content of the energy store (5) is reached, the operating device (4) is switched to a second operating mode in which the light source (3) is supplied from an energy source other than the energy store (5).
    In addition 7 sheets of drawings
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2695269B2|2017-10-25|Optimized load management
    DE102008057563B4|2017-07-13|Method and device for network-compliant operation of a plurality of decentralized with consumers / generators of electrical energy and connected to a low-voltage electrical network unit
    EP3022835B1|2020-06-03|Inverter comprising at least two direct current inputs, a photovoltaic installation comprising such an inverter, and a method for actuating an inverter
    WO2013186282A2|2013-12-19|Method and device for managing an energy generation unit
    DE102011085676A1|2013-05-08|Feed-in unit and power generation and consumption arrangement
    DE112017003022T5|2019-03-07|Management system for electric power
    EP2592709B1|2016-09-28|Method and device for controlling the stability of a low voltage network
    EP2745374B1|2019-03-13|Operation of an illuminant at an autonomous energy store
    EP2685580A2|2014-01-15|Device for determining and/or controlling an operating time of a consumer coupled to a power plant, in particular photovoltaic power plant, and an energy storage device, and method for operating an energy storage device coupled to a power plant
    DE102012007614A1|2013-10-24|Smart energy system for storage of electrical power in house, has sensor supplying specific signals to program, where signals serve for controlling cooperation among storage element, generation device and line for tapping power from line
    AT16856U1|2020-11-15|Lighting system with energy management function and procedure for its operation
    DE102007063513B4|2017-07-27|Production energy data collection and analysis system
    DE19817191C2|2001-07-05|Method for regulating the overall performance of energy systems, in particular a group of electrical consumers
    DE19932833A1|2001-01-25|Regulating total power of power generation system| with group of loads involves using load schema enabling more cost-effective utilization of energy tariffs with load time shifts
    DE102012111509A1|2014-05-28|Method for controlling operation mode of motor car with electric drive, involves determining energy for electric drive based on current charge status of battery within performance limit, and feeding remaining energy in battery to network
    EP3406016B1|2019-07-31|System for distributing locally generated energy to multiple load units
    AT516213B1|2016-08-15|Power system
    DE102019130337A1|2021-05-12|Load management system and method for regulating such a load management system
    DE102014207077A1|2015-10-15|Method for controlling an electric power
    DE102015104703A1|2016-09-29|Procedure for reporting the load of consumers in electricity networks
    EP3576243A1|2019-12-04|Technical decoupling of a micro-grid
    DE202008017778U1|2010-07-15|Device for maximum key adjustment
    DE102014001535A1|2015-02-12|Optimized building services energy management system
    DE102019214768A1|2021-04-01|Method and device for using free network capacities for charging electric vehicles
    DE102020101372A1|2021-07-22|OPERATING PROCEDURE FOR AN INVERTER, INVERTER AND POWER GENERATING SYSTEM WITH SUCH INVERTER
    同族专利:
    公开号 | 公开日
    DE102015215635A1|2017-02-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20050088100A1|2003-03-13|2005-04-28|Shih-Chang Chen|Emergency lighting equipment with automatic charge/discharge and monitoring system|
    EP2544511A1|2011-07-04|2013-01-09|Koninklijke Philips Electronics N.V.|Local controllable load system|
    WO2014140990A2|2013-03-13|2014-09-18|Koninklijke Philips N.V.|System and method for energy shedding|
    JP2014180095A|2013-03-14|2014-09-25|Mitsubishi Electric Corp|Lighting device|
    DE102011080996A1|2011-08-16|2013-02-21|Tridonic Gmbh & Co. Kg|Operation of a light source with autonomous energy storage|DE102019108830A1|2019-04-04|2020-10-08|Tridonic Gmbh & Co Kg|Lighting system with energy storage|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015215635.4A|DE102015215635A1|2015-08-17|2015-08-17|Lighting system with energy management function and method of operation thereof|
    [返回顶部]