公开(公告)号：US20110316490A1

公开(公告)日：2011-12-29

申请号：US13228759

申请日：2011-09-09

Applicant: Yongqiang Lang ,  Navid Reza Zargari ,  Manish Pande ,  Bin Wu

Inventor： Yongqiang Lang ,  Navid Reza Zargari ,  Manish Pande ,  Bin Wu

IPC: H02P9/10 ,  H02M5/44

CPC classification number: H02J3/386 ,  H02M1/32 ,  H02M5/4505 ,  H02P9/10 ,  H02P9/48 ,  H02P21/00 ,  H02P2101/15 ,  H02P2201/13 ,  Y02E10/763

Abstract: Switching control systems and methods are presented for controlling power conversion systems to provide electrical power to a grid or other load in which a synchronous machine is driven by a wind turbine or other prime mover to provide generator power to a switching type current source converter (CSC), with a current source rectifier (CSR) of the CSC being switched to provide d-axis control of the synchronous machine current based on grid power factor feedback, and with a current source inverter (CSI) of the CSC being switched to provide leading firing angle control and selective employment of dumping resists to dissipate excess generator energy in a fault mode when a grid voltage drops below a predetermined level.

Abstract translation: 提出了开关控制系统和方法，用于控制功率转换系统以向电网或其他负载提供电力，其中同步电机由风力涡轮机或其它原动机驱动以向开关型电流源转换器（CSC）提供发电机功率 ），CSC的电流源整流器（CSR）被切换以提供基于电网功率因数反馈的同步电机电流的d轴控制，并且CSC的电流源逆变器（CSI）被切换以提供前导 触发角度控制和选择性使用倾卸抗蚀剂，以在电网电压低于预定水平时以故障模式消散过多的发电机能量。

公开(公告)号：US20100253255A1

公开(公告)日：2010-10-07

申请号：US12636422

申请日：2009-12-11

Applicant: Vilanguppam Thathachary Ranganathan ,  Amit Kumar Jain

Inventor： Vilanguppam Thathachary Ranganathan ,  Amit Kumar Jain

IPC: H02P6/14 ,  H02P6/08

CPC classification number: H02P27/14 ,  H02P4/00 ,  H02P23/0027 ,  H02P2201/13

Abstract: A hybrid synchronous motor drive circuit and method operates in one or two or more modes based on the speed of the synchronous machine. In a first mode, the synchronous machine is driven at a relatively low frequency by a current controlled voltage source inverter (VSI). In a second mode, the synchronous machine is driven at a relatively high frequency by a load commutated inverter (LCI) in tandem with the VSI. In the second mode, the LCI acts as the main power source for controlling the machine and determining machine torque and speed. The VSI acts as a harmonic compensator by compensating the dominant harmonic currents fed to the machine from the LCI such that the synchronous machine will see sinusoidal currents and thereby sinusoidal voltages at its terminals. The VSI also functions to provide sufficient reactive power at fundamental frequency so that the thyristors in the inverter are load commutated.

公开(公告)号：US4698739A

公开(公告)日：1987-10-06

申请号：US928145

申请日：1986-11-07

Applicant: Derek A. Paice

Inventor： Derek A. Paice

IPC: H02M7/48 ,  H02M7/49 ,  H02M7/00

CPC classification number: H02M7/49 ,  H02P2201/13

Abstract: The present invention relates to an AC motor drive including two sets of inverters, wherein one transformer is converted on the output of one of the two inverters, the output of the transformer being connected in series with the output of the other inverter.

Abstract translation: 本发明涉及一种包括两组逆变器的交流电动机驱动器，其中一个变压器在两个逆变器之一的输出上转换，变压器的输出与另一个逆变器的输出串联。

公开(公告)号：US4602198A

公开(公告)日：1986-07-22

申请号：US705961

申请日：1985-02-26

Applicant: Herbert W. Weiss ,  Loren H. Walker

Inventor： Herbert W. Weiss ,  Loren H. Walker

IPC: H02J3/18 ,  H02M5/45 ,  H02M7/525 ,  H02P25/02 ,  H02P27/06 ,  H02P5/40

CPC classification number: H02J3/1892 ,  H02M5/4505 ,  H02M7/525 ,  H02P25/024 ,  H02P27/06 ,  H02P2201/13 ,  H02P2207/01

Abstract: A system for controlling the operation of an alternating current induction motor having windings supplied by electrical power from the polyphase alternating current source includes a load commutated inverter circuit which is connected between the power source and the induction motor for furnishing electrical power to the motor. Controllers responsive to a command signal and a feedback signal indicative of motor operating parameters control the operation of said load commutated inverter circuit. There is further provided a fixed capacitor circuit connected between the windings of the motor for supplying reactive volt amperes (VARs) to said load commutated inverter circuit and said motor. Finally, there is provided a variable VAR generator connected between the motor windings for supplying VARs to said load commutated inverter circuit and said motor in response to the output of a third feedback control path which is also responsive to a command signal and prescribed operating parameter(s) of said load and/or said commutated inverter.

公开(公告)号：US4426611A

公开(公告)日：1984-01-17

申请号：US372749

申请日：1982-04-28

Applicant: Paul M. Espelage ,  David L. Lippitt ,  Leland C. Tupper

Inventor： Paul M. Espelage ,  David L. Lippitt ,  Leland C. Tupper

IPC: H02P27/06 ,  H02M5/45 ,  H02P23/00 ,  H02P25/02 ,  H02P5/34

CPC classification number: H02M5/4505 ,  H02P25/024 ,  H02P2201/13

Abstract: A control system for powering an AC load such as a polyphase synchronous motor having at least two sets of three phase (3.phi.) windings. Each three phase winding set is powered by an independently operable six pulse load commutated inverter drive including a source side converter and a load side converter coupled together by means of a DC link and wherein the source side converter and the load side converter are operated in accordance with respective current and load angle regulators which respond to torque command signals generated by speed regulators. The two motor drives operate concurrently in separate control channels which are substantially independent of one another with the exception that in one embodiment, which is the preferred embodiment, the speed regulator and the motor terminal overvoltage regulator are cross-coupled to effect a balanced torque command and motor terminal voltage from each channel while still providing for continued motor operation by one of the motor drive channels in the event that the other becomes inoperative for any reason. In a second embodiment, one of two redundant speed regulators is adapted to provide a common torque command to both channels with the other speed regulator taking over in the event of the failure of said one speed regulator.

Abstract translation: 一种用于为诸如具有至少两组三相（3phi）绕组的多相同步电动机的交流负载供电的控制系统。 每个三相绕组由一个可独立操作的六个脉冲负载换向逆变器驱动器供电，该驱动器包括通过直流链路耦合在一起的源极侧转换器和负载侧转换器，其中源侧转换器和负载侧转换器按照 具有响应由调速器产生的转矩指令信号的各自的电流和负载角调节器。 两个电动机驱动器在独立的控制通道中同时运行，这些控制通道基本上彼此独立，除了在一个实施例中，优选实施例中，速度调节器和电动机端子过电压调节器交叉耦合以实现平衡转矩指令 并且每个通道的电动机端子电压同时由于任何原因而在另一个电机驱动通道不能工作的情况下继续由马达驱动通道运行。 在第二实施例中，两个冗余速度调节器中的一个适于在两个通道中提供公共转矩指令，而另一个调速器在所述一个速度调节器发生故障的情况下接管。

公开(公告)号：US4344025A

公开(公告)日：1982-08-10

申请号：US70725

申请日：1979-08-29

Applicant: Toshiaki Okuyama ,  Yuzuru Kubota ,  Hiroshi Nagase ,  Katsunori Suzuki

Inventor： Toshiaki Okuyama ,  Yuzuru Kubota ,  Hiroshi Nagase ,  Katsunori Suzuki

IPC: H02P23/00 ,  H02J3/18 ,  H02P6/00 ,  H02P6/06 ,  H02P27/05 ,  H02P5/40

CPC classification number: H02J3/1892 ,  H02P23/08 ,  H02P25/26 ,  H02P27/06 ,  H02P21/09 ,  H02P2201/13

Abstract: A motor control system controls to be constant a reactive power consumed by a motor load equipment having a motor to be driven by power supplied from an AC power source and a couple of thyristor converters for regulating the power supplied to the motor. To this end, the motor control system is comprised of a reactor power detector for detecting the reactive power of the motor load equipment, a command circuit for issuing a command to specify the rated reactive power consumed in the rated load running of the motor load equipment, and a reactive power control unit which receives an output signal from the command circuit and an output signal from the reactive power detector to produce a firing phase command signal depending on a difference between them. The firing phase command signal from the reactive power control unit is applied to an automatic pulse phase shifter to control the firing phase of the thyristor converters.

Abstract translation: 电动机控制系统控制由电动机负载设备消耗的无功功率的恒定，所述电动机负载设备具有通过从AC电源提供的电力驱动的电动机和用于调节供应到电动机的功率的一对晶闸管转换器。 为此，电动机控制系统包括用于检测电动机负载设备的无功功率的电抗器功率检测器，用于发出用于指定在电动机负载设备的额定负载运行中消耗的额定无功功率的命令的指令电路 以及无功功率控制单元，其接收来自命令电路的输出信号和来自无功功率检测器的输出信号，以根据它们之间的差异产生触发相位命令信号。 来自无功功率控制单元的点火相位指令信号被施加到自动脉冲移相器以控制晶闸管转换器的点火相位。

公开(公告)号：US4058755A

公开(公告)日：1977-11-15

申请号：US650767

申请日：1976-01-20

Applicant: Mitsuyuki Honbu ,  Sanshiro Obara ,  Takamasa Hori

Inventor： Mitsuyuki Honbu ,  Sanshiro Obara ,  Takamasa Hori

IPC: H02P23/00 ,  H02P1/54 ,  H02P5/74 ,  H02P27/05

CPC classification number: H02P27/06 ,  H02P23/08 ,  H02P25/26 ,  H02P21/09 ,  H02P2201/13

Abstract: A speed control system for an induction motor controlled by a converting arrangement coupled with a commutatorless motor which operates without commutation failure notwithstanding wide variations in the speed of the commutatorless motor. The speed control system includes an arrangement for maintaining the value of a direct current signal of the converting arrangement less than the maximum current value for ensuring proper operation of the converting arrangement.

Abstract translation: 一种用于感应电动机的速度控制系统，其由转换装置控制，该转换装置与不具有换向失效的无换向电动机相耦合，尽管无换向器电动机的速度变化很大。 速度控制系统包括用于保持转换装置的直流信号的值小于最大电流值的装置，以确保转换装置的正确操作。

公开(公告)号：US3787723A

公开(公告)日：1974-01-22

申请号：US3787723D

申请日：1970-03-02

Applicant: DEERE & CO

Inventor： MAGNUSON L ,  KUSKO A

IPC: B60L11/08 ,  B60L11/14 ,  H02P5/28

CPC classification number: H02P27/06 ,  H02P21/09 ,  H02P23/08 ,  H02P25/26 ,  H02P2201/13

Abstract: A vehicle is equipped with a main drive system and an electric assist drive system which is actuated by the operator when the vehicle speed falls below some predetermined speed. A prime mover for the vehicle, in addition to driving two wheels directly through a primary transmission, drives a three-phase electrical alternator. The alternator energizes an induction motor with a torque-regulating control system for independently driving two other wheels of the vehicle to provide greater traction at low speeds. The rotor circuit of the induction motor includes a rectifier bridge which feeds a line-commutated inverter for coupling the slip power back to the stator input. The control system determines the firing angle for conduction of the switches in the inverter to control the output torque of the induction motor as a function of speed. The system includes a shaping network which defines the desired speed-torque characteristic for accelerating the vehicle; and it generates a signal representative of a demand torque for a given motor speed. Another circuit sensing rotor current generates a signal representative of the load torque. A comparison circuit receives the two signals representative respectively of the actual torque and the desired torque for that speed; and it generates an error signal for controlling the firing angle of the switches in the inverter circuit such that the motor and vehicle are accelerated along the torque-speed envelope of the shaping network once the assisting system is actuated. Thus, the control system regulates the output torque of the assisting induction motor as a predetermined function of vehicle speed.

Abstract translation: 车辆配备有主驱动系统和电动辅助驱动系统，当车速低于某一预定速度时，该辅助驱动系统由操作者致动。 除了通过主变速器直接驱动两个车轮之外，车辆的原动机也驱动三相交流发电机。 交流发电机通过用于独立地驱动车辆的另外两个车轮的转矩调节控制系统来激励感应电动机，以在低速下提供更大的牵引力。 感应电动机的转子电路包括一个整流桥，该整流桥馈入线换向逆变器以将滑动功率耦合回定子输入端。 控制系统确定变频器中开关导通的触发角度，以控制感应电动机的输出转矩作为速度。 该系统包括形成网络，其形成用于加速车辆的期望速度 - 转矩特性; 并且其产生表示给定电机速度的需求转矩的信号。 感测转子电流的另一个电路产生代表负载转矩的信号。 比较电路接收代表该速度的实际转矩和期望转矩的两个信号; 并且产生用于控制逆变器电路中的开关的触发角的误差信号，使得一旦辅助系统被致动，电动机和车辆沿成形网络的转矩 - 速度包络被加速。 因此，控制系统将辅助感应电动机的输出转矩调节为车速的预定函数。

公开(公告)号：US11984830B2

公开(公告)日：2024-05-14

申请号：US17629900

申请日：2020-07-27

Applicant: Valeo Siemens eAutomotive Germany GmbH

Inventor： Panagiotis Mantzanas ,  Daniel Kübrich ,  Thomas Dürbaum ,  Alexander Bucher ,  Alexander Pawellek ,  Christian Hasenohr ,  Harald Hofmann

IPC: H02P27/08 ,  H02M7/5395 ,  H02P6/08 ,  H02P21/00

CPC classification number: H02P27/085 ,  H02M7/5395 ,  H02P6/08 ,  H02P21/0089 ,  H02P2201/13

Abstract: A control device (8) for an inverter (2) that feeds an electric machine (3), wherein the control device (8) is configured to provide pulse-width-modulated switching signals (15) at a carrier frequency to drive switching elements (12) of the inverter (2), wherein the control device (8) is configured to ascertain the carrier frequency within at least one operating range (22, 23) depending on a piece of operating point information that describes an operating point defined by a rotation speed and a torque of the electric machine (3) in such a way that the carrier frequency is reduced within the at least one operating range (22, 23) compared to a maximum carrier frequency operating point at which a maximum carrier frequency is specified in the operating range.

公开(公告)号：US20190006966A1

公开(公告)日：2019-01-03

申请号：US15969799

申请日：2018-05-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Virgilio VALDIVIA GUERRERO ,  Raymond Francis FOLEY

IPC: H02P5/74 ,  H02M7/5395 ,  H02M1/44 ,  H02M1/14 ,  H02M1/12

CPC classification number: H02P5/74 ,  H02M1/126 ,  H02M1/14 ,  H02M1/44 ,  H02M5/4585 ,  H02M7/5395 ,  H02M2001/008 ,  H02P2201/13

Abstract: A power converter system comprising a power source; a plurality of voltage source converters for driving respective loads; the plurality of voltage converters connected to the power source via a common DC-link, control means (10a, 10b) for driving the voltage source converters by means of respective control signals modulated onto respective modulation carriers; and means for synchronizing the control means such that the respective modulation carriers are interleaved with a selected phase shift therebetween.