• 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:
    1. A DC ELECTRIC DRIVE containing a motor, the root winding of which is connected to two thyristor MOCTOBbiM anti-parallel rectifiers connected in series, the first adder, the speed controller, the second adder, the current regulator, you- the course of which is connected with the phase control system of the thyristors of bridge rectifiers, a speed sensor and a current sensor connected to the second inputs of the corresponding adders, characterized in that, in order to increase reliability, a third adder connected between the current regulator and the system is added to it phase control thyristors of bridge rectifiers, current detector core, current control unit cor, current limiting unit cor and power limiting unit, the output of current control unit cor The second input of the second adder, the outputs of the current limiting unit of the core and the power limiting unit are combined and connected to the second input of the third adder, and the inputs of these blocks WITH are combined through the current detector, the core are connected to the current sensor core, the second input of the power limit unit is connected to the speed sensor, 2. The actuator of claim 1, wherein the power limiting unit comprises a sequentially connected multiplier,; 0 0 1 a comparator and an amplifier, wherein the inputs of the multiplier are inputs of the unit Neither the power nor the output of the bodies is the output of the limiting unit.
    公开号:SU1109077A3
    申请号:SU772542552
    申请日:1977-11-15
    公开日:1984-08-15
    发明作者:Кавада Сигеки；Ояма Сигеаки；Фудзиока Есики；Хирота Мицухико；Нисимори Тоехико
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to electrical engineering and can be used in direct current drives. There is a known direct current electric drive containing an electric heater, a speed controller with a C13 electric motor speed sensor connected to it. The closest technical solution to the invention is electr. A direct current drive comprising an electric motor, the root winding of which is connected to two thyristor bridge rectifiers connected in parallel to each other, successively connected to the first adder, speed controller, second adder, current regulator, the output of which is connected to the phase system control of thyristors of bridge rectifiers, a speed sensor and a current sensor connected to the second inputs of the corresponding G23 adders. The disadvantage of the known technical solutions is that ktrodvigatel brush arcing may occur, which is detrimental to Started petitiveness actuator and its reliability. The purpose of the invention is to increase its reliability. The goal is achieved by the fact that the DC motor contains a motor, the root winding of which is connected to two thyristor bridge back-to-back parallel meters connected in series, the first adder, the speed regulator, the second adder, the current regulator, the output of which associated with the phase control system of thyristors of bridge jacks, a speed sensor and a current sensor connected to the second inputs of the corresponding adders, a third adder has been added, including enny between current regulator and phase control system thyristor bridge rectifiers armature current detector unit. current control core, current limiting unit and power limiting unit, the output of the current control unit of the core is connected to the second input of the second adder, the outputs of the current limiting box of the core and power limiting unit are combined and connected to the second input of the third adder, and the inputs specified The blocks are connected and, through the current detector, the core is connected to the current sensor, the second input of the power limiter is connected to the speed sensor. Moreover, the power limiting unit comprises a multiplier, a comparator and an amplifier connected in series, the multiplier inputs being the inputs of the power limiter unit and the output of the amplifier the output of the power limiting unit. FIG. .1 is a diagram of the drive; in fig. 2 is a diagram of a power limiting unit; in fig. 3 - diagrams that show the operation of the drive. The electric drive contains an electric motor 1, the main winding of which is connected to two connected anti-parallel thyristor bridge rectifiers 2.3, serially connected adder 4, speed controller 5, second adder 6, current regulator 7, the output of which is connected to system 8 phase control thyristors of bridge rectifiers 2.3, speed sensor 9 and current sensor 10 connected to the second inputs of adders 4.6. In addition, the electric drive contains a third adder 11 connected between the current regulator 7 and the thyristor phase control system 8, the current detector 12 cor - a control unit 13 for a current cor, a limiting unit 14 for a current and a power limit 15, and the output of the control unit 13 connected to the second input of the second adder 6, the outputs of the limiting block 14 of the current cor and block: power limits 15 are combined and connected to the second input of the third adder 11, and the outputs of these blocks are combined and through the detector 12 of the current core are connected to yes current ticker 10, the second input of power limiting unit 15 is connected to speed sensor 9. Power limiting unit 15 contains serially connected multiplier 16, comparator 17 and amplifier 18, with inputs of multifunction 16 being inputs of power limiting unit 15, and output of usi gigitel 18 - output of power limiting unit 15.
    The drive works as follows.
    When applying the driving voltage to the input of the adder 4 and according to information from the speed sensors 9 and the current 10 5, the phase control system 8 supplies the control hashuls to the thyristors of the rectifiers 1 or 3, depending on the required direction of rotation of the electric motor 1, the thyristors turn on and supplying the electric motor 1 with the supply voltage. The motor 1 rotates at a speed n and has a current cor, equal to E (see Fig. 3a). With an increase in the resistance moment on the shaft of the electric motor 1, the speed of the electric motor 1 decreases, the voltage at the output of the adder 4 U. (cv-ef) increases in order to return the 20 speed to the original value.
    In this case, in the core of the electric motor 1, the current begins to increase and, consequently, the power of the electric motor 1.25
    According to information from speed sensor 9 and current sensor 10 in power limiting unit 15, multiplier 16 calculates the output power of motor 1 and compares in comparator 17 with setpoint P. When power of motor 1 exceeds setpoint p, from output of power limiter 15 to adder 11 is supplied . gpCcM signal. FIG. 3).
    As a result, the motor torque is kept increased in accordance with the increased drag moment, and the motor speed decreases (the operating point moves from Q to Qj, Fig. 3).
    Thus, this device ensures reliable operation of the electric motor with a large torque on the shaft, but the sparking in the brushes does not occur, since the electric motor runs at low revs, while maintaining the necessary power ..
    12
    AMRg
    II
    权利要求:
    Claims (2)
    [1]
    1. A DC electric drive, containing an electric motor, the anchor winding of which is connected to two connected parallel-parallel thyristor bridge rectifiers, connected in series with the first adder, speed controller, second adder, current controller, vy. the course of which is connected with the phase control system of the thyristors of bridge rectifiers, a speed sensor and a current sensor connected to the second inputs of the respective adders, characterized in that, in order to increase reliability, a third adder is added to it, connected between the current regulator and the phase control system thyristors of bridge rectifiers, armature current detector, armature current control unit, armature current limiter and power limiter, the output of the armature current control unit being connected to the second stroke of the second adder, the current limiting unit outputs and armature power limiting unit are combined and connected to the second input of the third adder, and inputs these combined units and via a current detector connected to the armature of the armature current sensor, a second input power limiting unit connected to the speed sensor.
    [2]
    2. The drive according to claim 1, characterized in that the power limiting unit comprises a multiplier, a comparator and an amplifier connected in series, the inputs of the multiplier being the inputs of the power limiting unit, and the output of the amplifier being the output of the limiting unit.
    SU < yu 1109077
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1109077A3|1984-08-15|Direct current electric drive
    US4230979A|1980-10-28|Controlled current inverter and motor control system
    US3372323A|1968-03-05|Induction motor slip frequency control system
    SU772507A3|1980-10-15|Method of velocity control for direct current electric motor
    US4942344A|1990-07-17|Control system for brushless motors
    GB1329596A|1973-09-12|Improved electric driving system
    US4255695A|1981-03-10|Method and apparatus for control of inverter synchronous machine drive system
    US5576606A|1996-11-19|Asynchronous motor power supply control system
    GB1228866A|1971-04-21|
    US4181875A|1980-01-01|Drive circuit for a DC motor
    EP0387358B1|1995-08-09|Dc motor
    US4517636A|1985-05-14|Inverter apparatus
    US3609494A|1971-09-28|Speed-controlling apparatus for dc motor
    US3421065A|1969-01-07|Apparatus for controlling the speed of direct current electric motors
    SU1112519A1|1984-09-07|Reversible electric drive
    SU1636978A1|1991-03-23|Device for controlling thyratron motor based on synchronous machine
    SU726643A1|1980-04-05|Device for regulating induction motor r.p.m.
    SU1001411A1|1983-02-28|Thyristorized induction drive
    SU890540A1|1981-12-15|Device for regulating rotational speed of induction electic motor
    SU919035A1|1982-04-07|Device for controlling three-phase asynchronous motor
    SU1483579A1|1989-05-30|Method and apparatus for adjusting electric drive
    SU1210193A1|1986-02-07|Device for dynamic braking of induction motor
    JP2777615B2|1998-07-23|Control device for synchronous motor
    SU1267578A1|1986-10-30|Rectifier electric motor
    SU1051677A1|1983-10-30|Electric drive
    同族专利:
    公开号 | 公开日
    CH627594A5|1982-01-15|
    FR2371086A1|1978-06-09|
    GB1581704A|1980-12-17|
    US4268781A|1981-05-19|
    DE2750782C3|1981-11-12|
    DE2750782A1|1978-05-18|
    FR2371086B1|1982-11-12|
    JPS5362117A|1978-06-03|
    DE2750782B2|1981-01-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE564228C|1931-01-27|1932-11-15|Siemens Schuckertwerke Akt Ges|Automatic switching mechanism for controlling motors, especially AC motors|
    US3421065A|1963-10-04|1969-01-07|Vanguard U S|Apparatus for controlling the speed of direct current electric motors|
    DE1563706B2|1966-05-14|1971-01-07|
    US3515971A|1967-09-07|1970-06-02|Gen Electric|Motor control system with feedback and variable gain amplifier responsive to current|
    US3508132A|1968-06-19|1970-04-21|Westinghouse Electric Corp|Power peak limiting control for direct current drives|
    BE794885A|1972-02-04|1973-08-02|Westinghouse Electric Corp|CONSTANT TORQUE CONTROL SYSTEM AND INERTIA COMPENSATION BY REGULATING THE ARMATURE CURRENT AND LOWERING THE EXCITATION OF A DIRECT CURRENT MOTOR|
    US3716772A|1972-02-28|1973-02-13|Allis Chalmers|Tapered current limit protection for d. c. motor|
    US3845371A|1973-04-06|1974-10-29|Int Equipment Co|Motor controller with power limiting|
    US3887855A|1973-11-28|1975-06-03|Cleveland Machine Controls|Motor speed modifier control|
    US3950684A|1974-05-29|1976-04-13|Westinghouse Electric Corporation|Direct current motor speed control apparatus|CH647901A5|1979-10-19|1985-02-15|Gegauf Fritz Ag|ELECTRICAL DRIVE DEVICE WITH A DC MOTOR SUPPLIED FROM THE MAINS THROUGH A RECTIFIER.|
    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|
    US4490657A|1983-10-11|1984-12-25|Allen-Bradley Company|Automatic torque taper circuit|
    FR2559321B1|1984-02-06|1986-11-21|Applic Mach Motrices|LOW-VOLTAGE ELECTRIC DRIVE DEVICE FOR A HIGH-INERTIA ROTATING MASS AND MOTOR BEING PART OF THIS DEVICE|
    JPH0330161B2|1984-05-30|1991-04-26|
    JPS61121770A|1984-11-16|1986-06-09|Hitachi Ltd|Chopper gate control system|
    FR2580442B1|1985-04-16|1988-07-29|Champavier Louis|CONTROL DEVICE OF A DIRECT CURRENT ELECTRIC MOTOR AND APPLICATIONS TO A STRESS MEASURER AND A PHYSICAL EXERCISE DEVICE|
    US4823057A|1987-03-05|1989-04-18|Greenlee Textron Inc.|Variable speed motor control|
    US5149176A|1989-08-07|1992-09-22|Tekonsha Engineering Company|Controller for electric braking systems|
    AT131668T|1991-04-11|1995-12-15|Elin Energieanwendung|METHOD AND CIRCUIT ARRANGEMENTS FOR DETERMINING MACHINE-RELATED ELECTROMAGNETIC AND MECHANICAL STATE SIZES ON ELECTRODYDYNAMIC TURNING FRAME MACHINES SUPPLIED BY CONVERTERS|
    JP3173996B2|1996-06-06|2001-06-04|オークマ株式会社|Control device for synchronous motor|
    US6249097B1|1997-11-21|2001-06-19|Valeo Electrical Systems, Inc.|Optimum motor speed control system|
    US8482235B2|2007-11-19|2013-07-09|Ebm-Papst St. Georgen Gmbh & Co. Kg|Fan arrangement in which the consumed electric power is influenced|
    DE102011083907A1|2011-09-30|2013-04-04|Robert Bosch Gmbh|Method for operating an electronically commutated electric motor|
    FR3043218B1|2015-11-04|2019-12-20|Thales|DYNAMIC LIMITATION DEVICE AND DYNAMIC LIMITATION METHOD BY SUCH A DEVICE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP13714476A|JPS5362117A|1976-11-15|1976-11-15|Method of driving dc motor|
    [返回顶部]