• 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:
    A device for driving a DC motor (1) with feedback control provides a circuit (14) for judging whether the motor (1) is in acceleration or in deceleration and a circuit (171-174) for switching the gain modification signal, and said switch circuit (171-174) is controlled by the output signals of said judgement circuit (14).
    公开号:SU999990A3
    申请号:SU802891106
    申请日:1980-03-05
    公开日:1983-02-23
    发明作者:Кобари Кацуо；Хатисука Есиаки
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    3 and the second input is connected, respectively, to an I1shertor, a tachogenerator, the shaft of which is articulated with the motor shaft, and is connected to the second input of the first summator, the first input of which is combined, -. with the second input of the second adder 2 j. In the known device, the reverse feedback signal is fed to the adders by speed and reduces the magnitude of the bias signals, thereby reducing the gain of the system at that | souting. Thus, this device eliminates the possibility of arcing on the collector of the electric motor. However, a decrease in the system gain during acceleration of the electric motor delays the acceleration time of the electric motor, which leads to a deterioration in the control characteristics of the electric motor. The aim of the invention is to improve the adjustment characteristics of the electric motor of the direct current motor by preventing the reduction of the system gain during acceleration of the electric motor. The goal is achieved by the fact that a mode determination unit and a switching unit are connected to the device, the mode unit is connected to the task unit and the output of the proportional-integrating amplifier, the input of the switching unit is connected to the second input of the fourth adder and the inverter output and outputs respectively to the second input of the first adder and the first input of the second sum of the matrix. In addition, the switching unit is made in the form of two switching contactors, and the moving contacts form the switching unit outputs, and the pairwise combined first and second fixed contacts of the contactors form the inputs of the switching unit.
    The mode definition block contains two polarity definition elements, two NOT circuits and two AND circuits, the output of Each polarity definition element of the signal is connected to the inputs of the AND circuits, and to one AND circuit directly and to the other through the NOT circuits The phoneness of the signal forms the input, and the outputs of the I circuits form the output of the mode detection unit.
    The drawing shows a block diagram of the device.
    A device for controlling the speed and the engine control contains two targets.
    the circuits 22 and 23 are NOT; in other words, the inputs of the elements 20 and 21 form the input, and the outputs of the circuits 24 and 2-5 And - the output of the mode determination unit 12.
    The device works as follows.
    权利要求:
    Claims (1)
    [1]
    The speed feedback signal 5, received from the tachogenerator 11 connected to the electric motor 8, is fed directly to the adder 2 of the change of the gain when the motor starts and, through the inverter 4, goes to the adder of the change of the gain when the motor brakes, resulting in reduced signals displacement, arriving at adders 2 and 5, thereby decreasing the coefficient 9О4, one of which is composed of partially connected proporionally integrating x amplifier 1, adder 2 and power amplifier 3, and the other from inverter 4 connected to the first input of adder 5 and power amplifier 6, the outputs of amplifiers 3 and 6 are connected to the inputs of adder 7, the output of which is provided with leads for connection to the root the winding of the electric motor 8, the input of the proportional-integrating amplifier 1 is connected to the output of the adder 9, block 10 of the task connected to the first input of the adder 9, the second input of which is connected, respectively, to the inverter 4, tachogenerator 11 whose shaft is connected to the shaft of the electric motor 8 and connected to the second input of the adder 2, the first input of which is combined with the second input of the adder 5, interconnected mode determination block 12 and switching unit 13, the block 12 connected to block 10 and the output of the proportional-integrating amplifier 1, block 3 inputs switching connected, respectively, to the second input of the adder 2 and to the first input of the adder 5, Switching unit 13 is made in the form of two switching co-switches, and the moving contacts 14 and 15 form the outputs of the block 13, and the pairwise combined fixed contacts 16,17 and 18,19 form a switching unit 13. The black 12 mode definition contains two elements 20 and 21 of the polarity determination, two circuits 22 and 23 NOT, and two circuits 24 and 25 And, the outputs of elements 2O and 21 are connected to the inputs of the circuits 24 and 25 And, and to the circuit 25 And directly, and to circuit 24 And - through the system gain at. braking motor. The outputs of the power amplifiers 3 and 6 are summed up in the adder 7 to obtain an output signal that is supplied to the DC motor 8. In the adder 9, the feedback signal on the speed S is read from the signal of the speed setting unit 10 SQ. The output signal of the adder 9 is fed to the amplifier 1, this circuit produces an output signal A proportional to the value of the signal 6-. The block 12 is determined by the mode intended to determine the operating mode of the electric motor 8, The signals from the output of the block 10 of the task and from the output of the amplifier 1 arrive at the inputs of the block 12 for determining the polarity. In block 12, the polarity of signal Sc is determined by polarity elements 20 and 21 of the polarity of signal A. The polarity determination element 20 generates an output signal O in the case of a negative input signal | 1a, which corresponds to a deceleration command and produces an output signal in case of a positive signal, corresponding to a command to accelerate an electric motor. The polarity determining element 21 generates an output signal O upon the arrival of a negative input signal, representing a negative value of Ag, in the case where the feedback signal on the speed S- is greater than the signal of the given speed Sc. and generates an output signal Ino to the arrival of a positive input signal representing a positive value of Ag in the case where the signal of a given speed Sr is higher than the contact signal in speed SQ. The output signals of the polarity elements 20 and 21 are compared with the HE 22 and 23 circuits and the AND 24 and 25 circuits, And the 25 output circuit produces an output signal only when both output signals of the polarity elements 2O and 21 are 1, and And 24 generates 1 at output 18 in this case, the signal O. Then the fixed contact 18 closes, since the voltage is applied to the relay coil, and the fixed contact. Contact 19 closes, since the voltage is not supplied to the relay coil. The AND 24 circuit produces an output signal 1 only if both output signals of the elements 2O and 21 of the polarity are equal to zero and the AND 25 circuit produces an output signal O at this time; at the same time, the fixed contacts 17 and nep are closed: the moving contact 16 ia-ea of removing the voltage from the 26 Pb -A contactor. The moving contacts 28 and 29 are the outputs of the switching unit with fixed contacts 17. When the output signals of the elements 2O and 21 of the polarity are both equal to one or zero, then the polarity of the signal corresponding to the given speed So and the polarity of the signal Ag equal to A ( ) t will be expressed according to one of two cases 5c, and A / Sc-S5 / O ;, Zo. and A / SC, -Sj / CO. Thus, in the proposed device, the operating mode of the electric motor is taken into account, which allows to ensure good adjustment characteristics of the electric motor. Claim 1. A device for controlling the speed of an electric motor, comprising two circuits, one of which is composed of a serially connected proportional-integrating amplifier, a first adder and a power amplifier, and the other of an inverter connected to the first input of the second adder, and a power amplifier, the outputs of the power amplifiers are connected to the inputs of the third adder, the output of which is sabenge, with leads for connecting to the motor winding, the input is proportional to the integrating amplifier by connected to the output of the fourth adder, to the first input of which the task block is connected, and the second input is connected, respectively, to an inverter, tachogenerator, shaft of which is connected to the electric motor, and connected to the second input of the first adder, the first input of which is combined with the second input of the second cyMwtaTopa , characterized in that, in order to improve the adjusting characteristics of the DC motor, a block is additionally connected to it (the mode and the switching unit, and Neuve with specifying unit and output a proportional-integrator, an amplifier, the input switching unit connected to a second input of the fourth summa-
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    同族专利:
    公开号 | 公开日
    JPS6215037B2|1987-04-06|
    DE3067915D1|1984-06-28|
    EP0016967A1|1980-10-15|
    JPS55120388A|1980-09-16|
    US4305026A|1981-12-08|
    EP0016967B1|1984-05-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2757485C1|2021-03-26|2021-10-18|Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский национальный исследовательский технический университет им. А.Н. Туполева - КАИ"|Dc motor angular speed control device|US3317806A|1966-08-04|1967-05-02|Secheron Atel|Speed regulator of an electric motor|
    US3599063A|1969-08-21|1971-08-10|Yaskawa Denki Seisakusho Kk|Speed control system for d.c. motor|
    DE2043709C3|1970-08-28|1973-12-20|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|Control device for reversing converters in circuit-free circuit|
    DD120333A1|1975-06-20|1976-06-05|DE3302222C1|1983-01-24|1984-05-10|Siemens AG, 1000 Berlin und 8000 München|Circuit arrangement for a roller drive motor of a tube mill|
    AU669431B2|1993-06-17|1996-06-06|Cms Gilbreth Packaging Systems, Inc.|Registration system for web feeding|
    US5821724A|1995-02-03|1998-10-13|Cms Gilbreth Packaging Systems|Feedback limiter for closed loop motor controller|
    KR100357873B1|1997-12-31|2003-01-10|삼성전자 주식회사|Apparatus of controlling rotate motor for apparatus of reproducing optical disc|
    CN101868785B|2007-09-21|2014-09-24|惠普开发有限公司|Generating a parallel recovery plan for a data storage system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP54025036A|JPS6215037B2|1979-03-06|1979-03-06|
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