• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    A system (10) includes a controller (38) configured to receive one or more inputs associated with operation of a turbine system (12), based at least in part on a set of ramp rates for the gas turbine system (12) derive from the one or more inputs and select a ramp rate from a set of ramp rates. The ramp rate includes a variable ramp rate. The controller (38) is further configured to generate an output signal based on the selected ramp rate.
    公开号:CH710617A2
    申请号:CH00015/16
    申请日:2016-01-05
    公开日:2016-07-15
    发明作者:Marie Sopcic Paige；Forrester Seely William；Dean Fuller Jason；Richard Waugh Daniel
    申请人:Gen Electric；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    The subject matter disclosed herein relates to industrial control systems and, more particularly, variable ramp rate control systems for a turbomachine.
    Certain systems, such as industrial control systems, can provide capabilities that include the control and analysis of a number of industrial machines, such as industrial machines. Allow turbine systems or generator systems to be included in an industrial system (e.g., a power generation system). For example, the industrial control system may include controllers, field devices, and sensors that store data used in the control of the turbine system or the generator system. One particular operating parameter of a turbine system that may be of particular interest to control is the load rate or ramp rate of the turbine system. However, the efficiency or speed at which the turbine system can reach the maximum load may be limited because the ramp rate of a turbine system may include a fixed value. It would be useful to provide methods to improve ramp rate control of turbine systems.
    BRIEF DESCRIPTION OF THE INVENTION
    Certain embodiments that are within the scope of the originally claimed invention are summarized below. These embodiments are not intended to limit the scope of the claimed invention, but rather these embodiments are intended to provide a brief summary of possible forms of the invention. In fact, the invention may include a variety of shapes that are similar to or different from the embodiments set forth below.
    [0004] In a first embodiment, a system includes a controller configured to receive one or more inputs associated with operation of a turbine system, a set of ramp rates for the turbine system based at least in part on the one or more Inputs, and select a ramp rate from the set of ramp rates. The ramp rate includes a variable ramp rate. The controller is further configured to generate an output signal based on the selected ramp rate.
    [0005] In any embodiment of the system, it may be advantageous if the controller is configured to provide a user input, an input about the maximum possible ramp rate, an input of a physics-based model of the turbine system operating parameters, an event capture input, an input of a measured Operating parameters, a planning parameter input or any combination thereof as the one or more inputs to receive.
    [0006] In any embodiment of the system, it may be advantageous if the controller is adapted to receive a first input of a physics-based model of an operating parameter of the turbine system and a second input of a physics-based model of operating parameters of an industrial system having the turbine system; and derive the set of ramp rates for the turbine system by generating a model-based control model (MBC) of each of a plurality of tolerable ramp rates for the turbine system.
    In any embodiment of the system, it may be advantageous if the controller is adapted to derive the set of ramp rates for the turbine system based on ramp rate tolerance of each component of the turbine system.
    In any embodiment of the system, it may be advantageous if the controller is adapted to select different ramp rates from the set of ramp rates over an operating period of the turbine system.
    In any embodiment of the system, it may be advantageous if the controller is adapted to select the various ramp rates from the set of ramp rates over a turbine phase load or ramp period.
    In any embodiment of the system, it may be advantageous if the controller is adapted to derive a set of corresponding maximum ramp rates for each component of the turbine system as the set of ramp rates.
    In any embodiment of the system, it may be advantageous if the controller is adapted to select a lowest ramp rate from the set of corresponding maximum ramp rates for each component of the turbine system as the selected ramp rate.
    In any embodiment of the system, it may be advantageous if the turbine system comprises a gas turbine, a steam turbine, a generator, a compressor or any combination thereof.
    [0013] In any embodiment of a system, it may be advantageous if the controller is adapted to be programmed with instructions to: derive the set of ramp rates for the turbine system based on the one or more inputs; and select the ramp rate from the set of ramp rates.
    In a second embodiment, a non-transitory computer-readable medium having program code stored thereon includes instructions to cause a controller to receive one or more inputs associated with operation of a turbine system to cause the controller to do so to derive a set of ramp rates for the turbine system based at least in part on the one or more inputs and to cause the controller to select a ramp rate from the set of ramp rates. The ramp rate contains a variable ramp rate. The program code includes further instructions to cause the controller to generate an output signal based on the selected ramp rate.
    [0015] In any embodiment of the computer-readable medium, it may be advantageous if the code has instructions to cause the controller to provide user input, input over a maximum possible ramp rate, input of a physics-based model of the operating parameters of the turbine system, an event detection input, an input of a measured operating parameter, a planning parameter input or any combination thereof as receiving the one or more inputs.
    [0016] In any embodiment of the computer-readable medium, it may be advantageous if the programming code has instructions to: cause the controller to input a physics-based model of an operating parameter of the turbine system and input a physics-based model of operating parameters receiving an industrial system comprising the turbine system; and cause the controller to derive the set of ramp rates for the turbine system by generating a model-based control model (MBC) from each of a plurality of tolerable ramp rates for the turbine system.
    [0017] In any embodiment of the computer-readable medium, it may be advantageous if the program code has instructions to cause the controller to derive the set of ramp rates for the turbine system based on a ramp rate tolerable by each component of the turbine system.
    In any embodiment of the computer-readable medium, it may be advantageous if the programming code has instructions to cause the controller to select different ramp rates from the set of ramp rates over an operating period of the turbine system.
    [0019] In any embodiment of the computer-readable medium, it may be advantageous if the programming code has instructions to cause the controller to select the various ramp rates from the set of ramp rates over a load increase or ramp period of the turbine system.
    In any embodiment of the computer-readable medium, it may be advantageous if the programming code has instructions to cause the controller to derive a set of corresponding maximum ramp rates for each component of the turbine system as the set of ramp rates.
    [0021] In any embodiment of the computer readable medium, it may be advantageous if the programming code has instructions to cause the controller to select a lowest ramp rate from the set of corresponding maximum ramp rates for each component of the turbine system as the selected ramp rate.
    In a third embodiment, a system includes a gas turbine system and a controller communicatively coupled to the gas turbine system. The controller includes a selector configured to receive a plurality of inputs associated with operation of the gas turbine system. The plurality of inputs includes a first set of model-based operating parameters of the gas turbine system and a second set of detected operating parameters of the gas turbine system. The receiver is also configured to derive a plurality of ramp rates for the gas turbine system based on the plurality of inputs. The plurality of ramp rates includes a respective maximum tolerable ramp rate for each component of the gas turbine system. The selector is then configured to select one or more ramp rates of the plurality of ramp rates. The controller also includes a ramp control device configured to receive the selected one or more ramp rates and to generate an output signal based on the selected one or more ramp rates.
    In any embodiment of the system, it may be advantageous if the ramp control device is configured to generate a fuel flow command as the output signal, and wherein the fuel flow command is configured to activate an actuator to control a feed of the gas turbine system.
    BRIEF DESCRIPTION OF THE DRAWINGS
    These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings, in which like reference characters represent corresponding parts throughout the drawings, wherein:<Tb> FIG. 1 is a block diagram of one embodiment of an industrial system incorporating one or more industrial machines in accordance with the present embodiments;<Tb> FIG. 2 <SEP> is a diagram of one embodiment of the system of FIG. 1 including a variable ramp rate controller in accordance with the present embodiments; and<Tb> FIG. 3 <SEP> is a flow chart illustrating one embodiment of a process useful in generating and selecting variable ramp rates for the one or more industrial machines of FIG. 1 in accordance with the present embodiments.
    DETAILED DESCRIPTION OF THE INVENTION
    One or more specific embodiments of the present invention will be described below. In an effort to provide a concise description of these embodiments, not all features of an actual implementation may be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, a variety of implementation-specific decisions must be made to achieve the specific objectives of the developer, such as meeting systemic and business related constraints vary from one to another realization. In addition, it should be recognized that such a development effort may be complex and time-consuming, but nevertheless a routine enterprise of design, fabrication, and manufacture for those of ordinary skill in the art having the benefit of this disclosure.
    When elements of the various embodiments of the present invention are introduced, the articles "a", "the, the," and "said" should mean that there are one or more of the elements. The terms "having," "containing," and "having" are intended to be inclusive, meaning that there may be additional elements other than the listed elements.
    The present embodiments relate to a ramp rate control system that is useful in generating and selecting different ramp rates for a turbomachine and gas turbine systems. Specifically, the ramp rate control system may begin by receiving real-time operational parameters (eg, real-time detected speed, temperature, torque, etc.), modeled or estimated parameters (eg, predictive models of speed, temperature, torque, etc.) and inputs (eg, user input). which are connected to the operation of the gas turbine system. The ramp rate control system may then dynamically select a ramp rate from a derived set of ramp rates over the gas turbine system load rise period in which the selected ramp rate may be based on the lowest of the maximum tolerable ramp rate that is permitted for each component of the gas turbine system. In this way, the present techniques may enable a rapid start-up of the gas turbine system and variable control of the power output of the gas turbine system. In fact, by using a variety of data inputs, for example, based on sensor measurements, physics-based models, and / or operator assessment, the present techniques may allow the gas turbine system to reach the maximum load at a faster rate than only using a fixed one Ramp rate would be possible. As used herein, "ramp rate" or "load rate" may refer to a load amount (eg, electrical power output to an electrical transmission or distribution network, mechanical power output to an industrial machine, etc.) that may be used by an energy generating machine (eg, gas turbine, steam turbine, etc.). Generator and the like) can be charged per unit time. For example, in a gas turbine system, a steam turbine system or other similar power generation system, the "ramp rate" or "load rate" may be measured in units of megawatts (MW) per unit time (e.g., MW / min). The techniques described herein may be applicable to other turbomachinery as well as heat recovery steam generation (HRSG) systems, steam turbines, compressors, and the like.
    With the foregoing in mind, it may be useful to describe an embodiment of an industrial system as well as an exemplary industrial system 10 illustrated in FIG. In fact, it should be appreciated that while the present embodiments are discussed with reference to an illustration of a gas turbine system (eg, as illustrated in FIG. 1), in some embodiments, the industrial system 10 may be a steam turbine system, a hydraulic turbine system, one or more compressor systems (eg, aviation-derived compressors, reciprocating compressors, centrifugal compressors, axial compressors, screw compressors, etc.), may include one or more electric motor systems, industrial systems including, for example, extruders, blowers, centrifugal pumps, or any of various other industrial equipment used in an industrial environment Factory or other industrial facility. It will be further appreciated that the techniques discussed herein may be used to monitor and control any of the aforementioned industrial equipment or any combination of industrial equipment.
    As illustrated in FIG. 1, the industrial system 10 may include a gas turbine system 12, a monitoring and control system 14, and a fuel supply system 16. The gas turbine system 12 may include a processor 20, combustion systems 22, fuel nozzles 24, a turbine 26, and an exhaust section 28. During operation, the gas turbine system 12 may draw air 30 into the compressor 20, which may then compress the air 30 and move the air 30 to the combustion system 22 (which may include, for example, a number of combustors). In the combustion system 22, the fuel nozzle 24 (or a number of fuel nozzles 24) may initiate fuel that mixes with the compressed air 30 to produce, for example, an air-fuel mixture.
    The air-fuel mixture may burn in the combustion system 22 to generate hot combustion gases that flow downstream into the turbine 26 to drive one or more stages of the turbine 26. For example, the combustion gases move through the turbine 26 to drive one or more stages of blades of the turbine 26, which in turn may drive rotation of the shaft 32. The shaft 32 may be connected to a load 34 and a generator that uses the torque of the shaft 32 to produce electricity. After passing through the turbine 26, the hot combustion gases may flow as exhaust gases 36 into the environment via the exhaust section 28. The exhaust gases 36 may include gases such as carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), etc.
    In certain embodiments, the system 10 may also include a controller 38, a number of sensors 42, and a human machine interface (HMI) user interface 44. The controller may also be communicatively coupled to one or more actuators 43 suitable for controlling components of the system 10. The actuators 43 may include valves, switches, positioners, pumps, and the like that are suitable for controlling various components of the system. The controllers 38 may receive data from the sensors 42 and may be used to control the compressor 20, the combustors 22, the turbine 26, the exhaust section 28, the load 34, and so on. The controller 38 may issue alarms, operational information signals or other messages to the HMI user interface 44. The HMI user interface 44 may be used to receive user input that may be provided to the controller 38. As will further be appreciated, in response to the sensor data 42 and inputs received via the HMI user interface 44, the controller 38 may also derive one or more model-based ramp rates for the turbine 26 to make the turbine 26 faster at a higher rate as, for example, allowing a nominal or fixed ramp rate to the turbine 26. This can increase the operating efficiency (e.g., fuel efficiency) of the turbine 26 and, in continuation, the operating efficiency of the industrial system 10.
    In certain embodiments, the HMI user interface 44 may be executable by one or more computer systems that may be used by a plant operator to interface with the industrial system 10 via an HMI user interface 44. Accordingly, the HMI user interface 44 may include various input and output devices (eg, mouse, keyboard, monitor, touch-screen, or other suitable input and / or output devices) such that a plant operator of the controller 38 commands (eg, control and / or operation commands ) and to receive operating information from the controller 38 or directly from the sensors 42. Accordingly, the controller 38 may be responsible for controlling one or more end actuators that couple to the components (eg, the compressor 20, the turbine 26, the combustor 22, the load 34, etc.) of the industrial system 10, such as, for example or multiple actuators, valves, encoders, etc.
    In certain embodiments, the sensors 42 may be any of various sensors used in providing various operating data to the controller 38, including e.g. Pressure and temperature of the compressor, speed and temperature of the turbine 26, vibration of the compressor 20 and the turbine 26, CO2 level in the exhaust gas 36, carbon content in the fuel 31, temperature of the fuel 31, temperature, pressure, clearance of the compressor 20 and the turbine 26 (eg, distance between the compressor 20 and the turbine 26 and / or between other static and / or rotating components that may be included within the industrial system 10), flame temperature or intensity, vibration, combustion dynamics (eg, fluctuations in pressure , Flame intensity, etc.), load data of the load 34, etc. are useful. In some embodiments, the controller 38 may use the data obtained from the sensors 42 to generate one or more ramp rate models and / or ramp rate settings to actively control the ramp rate and / or load rate of the gas turbine system 12. In one embodiment, the controller 38 may be programmed with instructions to provide one or more ramp rate models and / or ramp rate settings for the gas turbine system 12. The controller 82 may then apply the ramp rate to drive the system 10 and components thereof, e.g. by controlling an output based on the selected ramp rate. The output signal may be communicated to the one or more actuators 43 to adjust fuel flow, oxidant flow (e.g., air 30), change inlet duct angle, and the like.
    In certain embodiments, the controller 38 may derive one or more ramp rate-based models to derive ramp parameters for the gas turbine system 12 to allow the gas turbine system 12 to operate at a higher rate (eg, at an adjustable or variable ramp rate as opposed to a higher rate) fixed ramp rate), such as, for example, a nominal or fixed ramp rate of the gas turbine system 12. As illustrated in FIG. 2, the controller 38 may include, for example, a selector 52. The selector 52 may include a multiplexer (MUX) or other selection device that may be used to receive various inputs (eg, measurements from the sensors 42, model-based control models (MBC) of operating parameters of the gas turbine system 12, operators or user inputs, etc.) related to the operation of the gas turbine system 12 and selecting a ramp rate (eg, a variable ramp rate) for the gas turbine system 12 based thereon.
    In certain embodiments, as further illustrated in FIG. 2, the selector 52 may receive a user input 54. The user input 54 may include data entered by personnel (e.g., engineers, field technicians, operators, etc.) via the HMI user interface 44. For example, For example, an operator may enter data into selector 52 that may be based, for example, on human observation of compressor 20, combustor 22, turbine 26, and / or other components that may be included as part of gas turbine system 12. Similarly, the selector 52 may have a number of constant inputs, as well as e.g. an input 56 of the maximum possible ramp rate, and inputs 58 and 60 receive lower and upper constant ramp rate. Specifically, the maximum rate ramp input 56 may be the maximum ramp rate (determined, for example, based on the technical specification) for the particular turbine 26, various other turbines 26 that may be included in the industrial system 10, or in other embodiments, the maximum Represent operating ramp rate for each component of the gas turbine system 12.
    Similarly, the lower constant ramp rate input 58 may represent a lower limit (eg, a user configurable value) for the ramp rate of the gas turbine system 12, while the upper constant ramp rate input 60 may have an upper limit (eg, a user configurable value lower than that Value of the input 56 may be the maximum possible ramp rate) for the ramp rate of the gas turbine system 12. As further illustrated, a switch block 62 may be provided to switch between the lower constant ramp rate input 58 and the upper constant ramp rate input 60 based on, for example, an input 64 of an event detection parameter. In certain embodiments, the switch block 62 may include additional logic, e.g. Hysteresis, lag range, rise time, etc., which may allow more suitable transient operation when switching between ramp rates. The event detection parameter input 64 may include, for example, an input that includes electrical fault conditions, overvoltage conditions, overspeed, and / or overload conditions with respect to the compressor 20 and the turbine 26, lean fuel cutout (LBO) conditions with respect to the combustors 22. Mode transfers (eg lean-lean mode transfers, premix mode transfers) through the combustors 22 or any of various operating events detected by the controller 38.
    In certain embodiments, as further illustrated, the selector 52 may also include an input 66 of model-based gas turbine system operating parameters and an input 68 of model-based turbine operating parameters (eg, predictive models of speed, torque, temperature, pressure, vibrations, etc.). receive. In some embodiments, the controller 38 may derive the model-based operating parameter input 66 and input 68 model-based turbine operating parameters based on one or more physics-based models, for example, one or more real-time operating boundary models (eg, differential equation models with boundary conditions based on system conditions and temperature, pressure, fluid flow, mass flow, fuel type , Oxidizer type, and the like), which estimate all contributions to the power output of the gas turbine system 12 and / or other components (eg, compressor 20, combustors 22, turbine 26) that may be included as part of the gas turbine system 12. The controller 38 may then use the model-based operating parameter input 66 and the gas turbine system model-based operating parameter input 68 to derive one or more ramp rate models 70 from tolerable and allowed ramp rates for the gas turbine system 12 and / or each component of the gas turbine system 12. For example, Ramp rate models 70 may include physics-based models, such as LCF life-cycle predictive models, computer-aided fluid dynamics (CFD) models, finite element analysis (FEA) models, solid state models (eg, parametric and non-parametric modeling), 3-dimensions (FIG. 3-D) to 2-dimensional (2-D) FEA imaging models or other physics-based models that may be used to set the tolerable or allowable ramp rates of the gas turbine system 12 and / or other components of the industrial system 10 to model.
    As further illustrated, the selector 52 may also receive scheduling parameters 72 that may be provided to a ramp rate scheduling block 74 (e.g., a computerized block). The scheduling parameters 72 may be used by the ramp rate planning block 74 to identify one or more operational plans of the gas turbine system 12, e.g. possible areas of and / or within the gas turbine system 12, which may be limited by a higher or variable ramp rate. Specifically, the ramp rate planning block 74 for the gas turbine system 12 may derive and schedule a variable ramp rate (e.g., as compared to a fixed ramp rate) and, by extension, control the output of the gas turbine system 12. In fact, the ramp rate planning block 74 may generate a variable ramp rate that may include slowing the increase in power output of the gas turbine system 12, for example, based on the minimum operating parameters (eg, speed, speed, temperature, pressure, vibration, etc.) that are tolerable by or each component (eg, compressor 20, combustors 22, turbine 26, and the like) of the gas turbine system 12 is allowed at all times. Therefore, the variable ramp rate generated by the ramp rate planning block 74 may allow the gas turbine system 12 to reach the maximum load (eg, about 80% -100% of the load) at a rate faster than a fixed ramp rate ,
    As further illustrated, the selector 52 may also receive a reference parameter input 76 that is subtracted by a feedback parameter input 78 to generate an error signal. The error signal may then be provided to a controller 80 (e.g., a microcontroller) and then provided to the selector 52. Specifically, the reference parameter input 76 and the feedback parameter input 58 may be used to perform real-time control (e.g., tuning) of the turbine 26 and / or other components that may be included as parts of the gas turbine system 12. For example, the reference parameter input 76 and reference parameter input 78 may include, but are not limited to, measurements, predictions, estimates, models, plans, etc.
    In certain embodiments, the selector 52 may determine a suitable ramp rate for the gas turbine system 12 based on the various inputs (eg, user input 54, maximum ramp rate input 56, event input parameter input 64, operating parameter input 66 based on industrial modes, operating parameter input 68, based on the model of the gas turbine system 12, scheduling parameters 72, etc.) selected over one or more time periods based on, for example, the lowest of the maximum ramp rates that are physically allowable or tolerable (eg, determined based on engineering specifications) Compressor 20, the combustion chambers 22, the turbine 26 and / or other components that may be included as part of the gas turbine system may vary. The selector 52 may then provide the selected maximum ramp rate to a ramp controller 84, which may also receive the current-averaged gas turbine system operating parameter input 82 (e.g., speed, temperature, torque, pressure, vibration, nominal ramp rate, etc.) as a direct input.
    Based on the selected maximum ramp rate and operating parameter input 82 of the real-time gas turbine system 12, the ramp controller 84 may then generate a fuel flow command value, which may then be output to one or more control actuators (eg, actuators 43 and the like) coupled to the gas turbine system 12 can be coupled to adjust the fuel flow to the gas turbine system 12 and actively and variably actively control the ramp rate and power output of the gas turbine system 12 in extension. In this way, current techniques may allow for rapid start-up of the gas turbine system and variable control of the power output of the gas turbine system. In fact, by utilizing a variety of data inputs, based for example on sensor measurements, physics-based models, and / or user or engineering assessment, the current techniques may allow the gas turbine system to achieve the maximum load at a faster rate than it does using only a fixed ramp rate may be possible.
    As an example of the presently disclosed techniques, in one or more embodiments, the combustors 22 may require the ramp rate to be delayed for a few seconds (eg, about 0.1 second to 5 seconds) after, for example, a burn mode retransmission (eg, lean-lean) Mod transfer, premix mode transfer) is limited. The controller 38 may provide a fuel flow command and / or ramp rate command to initiate acceleration of the turbine 26. It then follows that when the controller 38 identifies that a combustion mode returner has been requested, the controller 52 selects the maximum ramp rate that is appropriate (e.g., allowable or tolerable) for those operating conditions to be provided to the ramp rate controller 84. The controller 38 may then maintain a lower ramp rate until the controller 38 recognizes that the combustion mode transfer is complete and that the turbine 26 and / or other components of the gas turbine system 12 have stabilized sufficiently to allow higher (e.g., faster) ramp rates. If the controller 38 recognizes that the aforementioned condition is met, the controller 52 may select a higher maximum ramp rate to provide it to the ramp rate controller 84 and may therefore allow the turbine 26 and / or other components of the gas turbine system 12 to to achieve higher ramp rates. Therefore, as noted above, current techniques may allow for rapid start-up of the gas turbine system 12 and variable control of the power output of the gas turbine system 12, which may be otherwise unattainable and using fixed ramp rates.
    Turning now to FIG. 3, a flow chart illustrating one embodiment of a process 56 useful in the generation and selection of variable ramp rates for a gas turbine system during load increase by using, for example, a controller 38 incorporated into the industrial process System 10 shown in FIG. 1 is included. The method 86 may include program code or instructions stored on a non-transitory machine-readable medium (e.g., a memory) and executed, for example, by one or more processors included in the controller 38. The method 86 may begin with the controller 38, which receives the turbine system operating parameters and inputs (block 88). For example, as discussed above, the controller may receive detected operating parameters of the gas turbine system 12 and various inputs such as an operating input 54, a maximum possible ramp rate input 56, an event detection parameter input 64, a model-based operating parameter input 66, model-based operating parameter input 68 of the gas turbine system 12, scheduling parameters 72, and so forth ,
    The method 86 may then proceed with the controller 38 deriving a set of turbine control ramp rates based on the operating parameters of the gas turbine system 12 and the inputs received (block 90). For example, as discussed above, the controller 38 may derive one or more model-based ramp rates for the gas turbine system 12 to allow the gas turbine system 12 to charge at a higher rate than, for example, a nominal or fixed ramp rate of the gas turbine system 12. The method may then continue with the controller selecting a ramp rate from the derived set of ramp rates, based on the lowest of the maximum ramp rates, for each component of the turbine system (block 92). For example, the selector 52 of the controller 38 may determine a suitable ramp rate for the gas turbine system 12 at any time during charging based on, for example, the lowest of the maximum ramp rates that are physically tolerable or allowable (eg, determined based on the technical specifications) by the compressor 20 Combustion chambers 22, the turbine 26 and / or other components that may be included as part of the gas turbine system 12 select.
    The method may then proceed with the controller 38 providing the turbine system with the selected ramp rate parameters (block 94). For example, the ramp controller 84 of the controller 38 may then generate a fuel command value based on the selected maximum ramp rate and the real-time gas averaged operating parameter inputs 82 of the turbine system 12. The method 86 may then conclude that the controller 38 provides the fuel flow command value command to set one or more actuators (eg, actuators 43 and the like) that may be coupled to the gas turbine system 12 to adjust the fuel flow to the gas turbine system 12 in the extension, to actively and variably control the ramp rate and power output of the gas turbine system 12. Other generated signals (block 96) may adjust oxidant (e.g., air 43) flow, inlet duct angle, and the like.
    Technical effects of the present embodiments relate to a ramp rate control system useful in generating and selecting variable ramp rates for gas turbine systems. Specifically, the ramp rate control system may begin to provide real-time operating parameters (eg, real-time velocity, temperature, torque, etc.), model-based control (MBC) parameters (eg, velocity, temperature, torque, etc. predictive models) and inputs (eg, user input). received, which are connected to the operation of the gas turbine system. The ramp rate control system may then dynamically select a ramp rate from a derived set of ramp rates over the gas turbine system charging period that may be based on the lowest of the maximum tolerable ramp rates allowed for each component of the gas turbine system.
    This written description uses examples to disclose the invention, including the best mode, and moreover, to enable any person skilled in the art to practice the invention, to make it underneath, and to use any apparatus or system and to perform any included method. The patentable scope of the invention is defined by the claims, and may include other examples that will become apparent to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
    A system includes a controller configured to receive one or more inputs associated with operation of a gas turbine system, deriving a set of ramp rates for the gas turbine system based at least in part on the one or more inputs, and one Select ramp rate from a set of ramp rates. The ramp rate includes a variable ramp rate. The controller is further configured to generate an output signal based on the selected ramp rate.
    权利要求:
    Claims (10)
    [1]
    1. System comprising:a control device adapted to:receive one or more inputs associated with operation of a turbine system;Deriving a set of ramp rates for the turbine system based at least in part on the one or more inputs;Selecting a ramp rate from the set of ramp rates, the ramp rate having a variable ramp rate; andGenerating an output signal based on the selected ramp rate.
    [2]
    2. The system of claim 1, wherein the controller is configured to: user input, maximum rate input, input to a physics-based model of the turbine system operating parameters, event detection input, measured operating parameter input, scheduling parameter input, or any combination of receiving it as the one or more inputs.
    [3]
    3. System according to claim 1 or 2, wherein the control device is adapted to:receive a first input about a physics-based model of an operating parameter of the turbine system and a second input of a physics-based model of operating parameters of an industrial system having the turbine system; andderive a set of ramp rates for the turbine system by generating a model-based control model (MBC) having a plurality of tolerable ramp rates for the turbine system.
    [4]
    4. The system of claim 1, wherein the controller is configured to derive the set of ramp rates for the turbine system based on ramp rate tolerance of each component of the turbine system.
    [5]
    5. The system of claim 1, wherein the controller is configured to select different ramp rates from the set of ramp rates over an operating period of the turbine system, and / or wherein the controller is configured to set different ramp rates from the set of ramp rates over a loading period or to select over a ramp period of the turbine system.
    [6]
    The system of any one of the preceding claims, wherein the controller is adapted to derive a set of corresponding maximum ramp rates for each component of the turbine system as the set of ramp rates.
    [7]
    7. The system of claim 6, wherein the controller is configured to select a lowest ramp rate from the set of corresponding maximum ramp rates for each component of the turbine system as the selected ramp rate.
    [8]
    A system according to any one of the preceding claims, wherein the controller is adapted to be programmed with instructions programmed to:derive the set of ramp rates for the turbine system based on the one or more inputs; andselect the ramp rate from the set of ramp rates.
    [9]
    A non-transitory computer-readable medium having computer-executable program code stored thereon, the program code having instructions to:cause a controller to receive one or more inputs associated with operation of a turbine system;cause the controller to derive a set of ramp rates for the turbine system based at least in part on the one or more inputs;causing the controller to select a ramp rate from the set of ramp rates, the ramp rate having a variable ramp rate; andcausing the controller to generate an output signal based on the selected ramp rate.
    [10]
    10. System comprising:a gas turbine system; anda controller communicatively coupled to the gas turbine system, comprising:a selector set up to:receiving a plurality of inputs associated with operation of the gas turbine system, the plurality of inputs having a first set of model-based operating parameters of the gas turbine system and a second set of sensed operating parameters of the gas turbine system;Deriving a plurality of ramp rates for the gas turbine system based on the plurality of inputs, the plurality of ramp rates having a corresponding maximum tolerable ramp rate for each component of the gas turbine system; andselect one or more ramp rates of the plurality of ramp rates; anda ramp control device configured to receive the selected one or more ramp rates and generate an output signal based on the selected one or more ramp rates.
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    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    DE102015122873A1|2016-07-07|
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    US9500136B2|2016-11-22|
    US20160195026A1|2016-07-07|
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    EP2721291B1|2011-06-14|2018-11-21|Vestas Wind Systems A/S|Selective droop response control for a wind turbine power plant|CN105765172B|2013-09-30|2018-03-27|西门子公司|For operating the method for the turbine with overload protection and including the turbine of the device for performing methods described|
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    法律状态:
    2017-03-15| NV| New agent|Representative=s name: GENERAL ELECTRIC TECHNOLOGY GMBH GLOBAL PATENT, CH |
    2019-05-15| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    US14/590,513|US9500136B2|2015-01-06|2015-01-06|Systems and methods for generating variable ramp rates for turbomachinery|
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