CURRENT CONTROL FOR AN ELECTRIC ACTUATOR
    1.
    发明申请
    CURRENT CONTROL FOR AN ELECTRIC ACTUATOR 有权
    电动执行机构的电流控制

    公开(公告)号:US20130307447A1

    公开(公告)日:2013-11-21

    申请号:US13475209

    申请日:2012-05-18

    IPC分类号: H02P21/00

    摘要: A controller for an electric actuator includes a reference model that generates position and speed reference signals in response to a position command signal and employs a feed forward model that accounts for dynamic loading of the electric actuator. The feed forward model receives the position and speed reference signals provided by the reference model, and in response generates feed forward signals that account for mechanical characteristics of the electric actuator.

    摘要翻译: 用于电致动器的控制器包括参考模型,该参考模型响应于位置指令信号产生位置和速度参考信号,并且采用考虑到电致动器的动态加载的前馈模型。 前馈模型接收由参考模型提供的位置和速度参考信号,并且响应于产生考虑到电致动器的机械特性的前馈信号。

    Current control for an electric actuator
    2.
    发明授权
    Current control for an electric actuator 有权
    电动执行器的电流控制

    公开(公告)号:US08729838B2

    公开(公告)日:2014-05-20

    申请号:US13475209

    申请日:2012-05-18

    IPC分类号: H02P6/00

    摘要: A controller for an electric actuator includes a reference model that generates position and speed reference signals in response to a position command signal and employs a feed forward model that accounts for dynamic loading of the electric actuator. The feed forward model receives the position and speed reference signals provided by the reference model, and in response generates feed forward signals that account for mechanical characteristics of the electric actuator.

    摘要翻译: 用于电致动器的控制器包括参考模型,该参考模型响应于位置指令信号产生位置和速度参考信号,并且采用考虑到电致动器的动态加载的前馈模型。 前馈模型接收由参考模型提供的位置和速度参考信号,并且响应于产生考虑到电致动器的机械特性的前馈信号。

    Starting/generating system with multi-functional circuit breaker
    3.
    发明授权
    Starting/generating system with multi-functional circuit breaker 失效
    具有多功能断路器的起动/发电系统

    公开(公告)号:US08299762B2

    公开(公告)日:2012-10-30

    申请号:US12479211

    申请日:2009-06-05

    IPC分类号: F02N11/04 H02P7/00

    摘要: A pre-charge circuit limits in-rush currents on a direct current (DC) link that includes a first DC link bus and a second DC link bus. The pre-charge circuit includes a switching device connected in series with the first DC link bus. The switching device has an ON state in which power flow is enabled on the DC link and an OFF state in which power is disabled on the DC link. A controller selectively modulates the state of the switching device to limit in-rush currents on the DC link.

    摘要翻译: 预充电电路限制包括第一DC链路总线和第二DC链路总线的直流(DC)链路上的浪涌电流。 预充电电路包括与第一DC链路总线串联连接的开关装置。 开关装置具有在DC链路上使能电力流的ON状态和在DC链路上禁用电力的OFF状态。 控制器选择性地调制开关装置的状态以限制直流链路上的浪涌电流。

    Engine start system with a regulated permanent magnet machine

    公开(公告)号:US20080315584A1

    公开(公告)日:2008-12-25

    申请号:US11820639

    申请日:2007-06-20

    IPC分类号: H02P9/04 F02N11/04

    摘要: An electromechanical power transfer system that transfers power between a direct current (DC) electrical power system and a prime mover, comprises: a permanent magnet machine (PMM) comprising a permanent magnet (PM) rotor that rotates a drive shaft of the prime mover, a stator with a multiphase alternating current (AC) winding coupled to the AC bus for developing a rotating magnetic field with a magnetic flux path that causes rotation of the PM rotor and a control coil with a winding that has a configuration to generate a magnetic field with flux that varies the reactance of the stator winding upon the application of current through the control coil; a plurality of AC current sensors for sensing the current in each phase of the multi-phase AC bus and generating respective AC bus current signals that represent the current level of each phase; an average current detector that receives the AC bus current signals and generates a respective current load feedback signal; a back electromotive force (emf) detector coupled to the AC bus that detects back emf generated by the stator in response to the application of AC power to the stator and generates a back emf signal representative of the detected level of back emf; a rotor position/speed estimator that receives the back emf signal and generates an estimated rotor position signal that is representative of the position of the rotor, an estimated rotor speed signal that is representative of the speed of the rotor and a closed loop enable signal that indicates a speed for the electrical starting system to switch from an open loop mode of operation to a closed loop mode of operation; a control coil current sensor for generating a control coil current signal in a control coil current feedback loop that is representative of the level of electrical current in the control coil; a first speed switch that switches between an open loop position reference signal that represents a desired position of the rotor in an open loop mode and the estimated rotor position signal that represents the position of the rotor in a closed loop mode to provide a position reference signal; a second speed switch that switches between an open loop current reference signal that represents a desired control coil current level in the open loop mode and a closed loop current reference signal that represents a desired control coil current level in the closed loop mode to provide a control coil current reference signal; an inverter/rectifier system for converting DC power from the DC power system to multiphase alternating current (AC) power on an AC bus; a control coil current regulator system for regulating current through the control coil; wherein the inverter/rectifier system responds to the position reference signal, the current load feedback signal and a current load reference signal to regulate acceleration of the PMM; wherein the control coil current regulator system responds to the control coil current reference signal and the control coil current feedback signal to regulate current in the PMM; and wherein the power transfer system starts in the open loop mode, the rotor position/speed estimator generates the closed loop enable signal that indicates a speed for the electrical starting system to switch from the open loop mode of operation to the closed loop mode of operation at a predetermined rotor speed, and the first and second speed switches respond to the closed loop enable mode to switch from their open loop mode to their closed loop mode.

    STARTING/GENERATING SYSTEM WITH MULTI-FUNCTIONAL CIRCUIT BREAKER
    7.
    发明申请
    STARTING/GENERATING SYSTEM WITH MULTI-FUNCTIONAL CIRCUIT BREAKER 失效
    具有多功能断路器的起动/发电系统

    公开(公告)号:US20100308582A1

    公开(公告)日:2010-12-09

    申请号:US12479211

    申请日:2009-06-05

    IPC分类号: F02N11/04

    摘要: A pre-charge circuit limits in-rush currents on a direct current (DC) link that includes a first DC link bus and a second DC link bus. The pre-charge circuit includes a switching device connected in series with the first DC link bus. The switching device has an ON state in which power flow is enabled on the DC link and an OFF state in which power is disabled on the DC link. A controller selectively modulates the state of the switching device to limit in-rush currents on the DC link.

    摘要翻译: 预充电电路限制包括第一DC链路总线和第二DC链路总线的直流(DC)链路上的浪涌电流。 预充电电路包括与第一DC链路总线串联连接的开关装置。 开关装置具有在DC链路上使能电力流的ON状态和在DC链路上禁用电力的OFF状态。 控制器选择性地调制开关装置的状态以限制直流链路上的浪涌电流。

    Dual Channel Power Generation System
    8.
    发明申请
    Dual Channel Power Generation System 有权
    双通道发电系统

    公开(公告)号:US20090261586A1

    公开(公告)日:2009-10-22

    申请号:US12106304

    申请日:2008-04-20

    IPC分类号: H02P9/02

    摘要: A dual channel power generation system comprises: a prime mover; a permanent magnet (PM) dynamoelectric machine that has a PM rotor coupled to the prime mover, two multiphase alternating current (AC) stators that develop electromotive force (EMF) in response to rotation of the PM rotor due to the magnetic flux linkage between the PM rotor and the stators, two control coils that each change the magnetic flux linkage of a respective stator in response to the level of a control current that passes through the control coil; a multiphase AC rectifier for each stator that receives AC power from its respective stator to supply DC power on a respective rectifier bus; a current feedback loop for each rectifier bus; a voltage feedback loop for each rectifier bus; a load-sharing controller responsive to both current feedback loops to develop a voltage regulator reference signal for each rectifier bus that is representative of the value of voltage that its corresponding stator should produce to maintain equal values of current for both rectifier buses; and a voltage regulator for each rectifier bus responsive to its respective voltage feedback loop and voltage regulator reference signal to produce the control current for its respective control coil that changes the magnetic flux linkage of its respective stator to maintain the value of voltage that its corresponding stator should produce to maintain equal values of current for both rectifier buses.

    摘要翻译: 双通道发电系统包括:原动机; 具有耦合到原动机的PM转子的永磁(PM)电动机,两个多相交流(AC)定子,其响应于PM转子的旋转而产生电动势(EMF),这是由于 PM转子和定子,两个控制线圈,每个控制线圈响应于通过控制线圈的控制电流的电平而改变相应定子的磁通量; 用于每个定子的多相AC整流器,其从其相应的定子接收AC电力,以在相应的整流器总线上提供DC电力; 每个整流器总线的电流反馈回路; 每个整流器总线的电压反馈回路; 负载分担控制器响应于两个电流反馈回路,以针对每个整流器总线开发代表其相应的定子应产生的电压值以维持两个整流器母线的相等电流值的电压调节器参考信号; 以及每个整流器总线的电压调节器,其响应于其各自的电压反馈回路和电压调节器参考信号,以产生用于其相应控制线圈的控制电流,其改变其相应定子的磁通量,以保持其相应定子 应该产生两个整流母线的电流值相等的值。

    Engine start system with a regulated permanent magnet machine
    9.
    发明授权
    Engine start system with a regulated permanent magnet machine 有权
    发动机启动系统配有稳压永磁机

    公开(公告)号:US07501799B2

    公开(公告)日:2009-03-10

    申请号:US11820639

    申请日:2007-06-20

    摘要: An electromechanical power transfer system that transfers power between a direct current (DC) electrical power system and a prime mover, comprises: a permanent magnet machine (PMM) comprising a permanent magnet (PM) rotor that rotates a drive shaft of the prime mover, a stator and a control coil; that an inverter/rectifier system for converting DC power from the DC power system to multiphase alternating current (AC) power on an AC bus; a control coil current regulator system for regulating current through the control coil; wherein the inverter/rectifier system responds to a position reference signal, a current load feedback signal and a current load reference signal to regulate acceleration of the PMM; wherein the control coil current regulator system responds to a control coil current reference signal and a control coil current feedback signal to regulate current in the PMM; and wherein the power transfer system starts in an open loop mode, and the first and second speed switches respond to a closed loop enable mode to switch from their open loop mode to their closed loop mode.

    摘要翻译: 一种在直流(DC)电力系统和原动机之间传递动力的机电式动力传递系统,包括:永久磁铁机(PMM),其包括旋转原动机的驱动轴的永久磁铁(PM)转子, 定子和控制线圈; 用于将直流电力从直流电力系统转换为交流总线上的多相交流电源的逆变器/整流器系统; 用于调节通过控制线圈的电流的控制线圈电流调节器系统; 其中逆变器/整流器系统响应位置参考信号,电流负载反馈信号和电流负载参考信号来调节PMM的加速度; 其中所述控制线圈电流调节器系统响应于控制线圈电流参考信号和控制线圈电流反馈信号以调节PMM中的电流; 并且其中所述功率传输系统以开环模式启动,并且所述第一速度开关和所述第二速度开关响应闭环启用模式以从其开环模式切换到其闭环模式。

    CONTROL ARCHITECTURE FOR A MULTI-LEVEL ACTIVE RECTIFIER
    10.
    发明申请
    CONTROL ARCHITECTURE FOR A MULTI-LEVEL ACTIVE RECTIFIER 审中-公开
    多级有源整流器的控制架构

    公开(公告)号:US20130088903A1

    公开(公告)日:2013-04-11

    申请号:US13270887

    申请日:2011-10-11

    IPC分类号: H02M7/04

    摘要: The present invention is a control architecture for an active rectifier. The control architecture monitors the AC input voltage provided to the active rectifier at a sampling rate grater than the frequency of the AC input voltage and calculates, in response, a phase estimate associated with the monitored AC input voltage that is updated with each new sample of the AC input voltage. Based on the phase and frequency estimates, along with monitoring of the AC input current and DC output voltage, the control architecture calculates voltage commands that are used to generate the pulse-width modulation (PWM) controls signals for provision to solid-state switching devices in the active rectifier.

    摘要翻译: 本发明是用于有源整流器的控制架构。 控制架构以比AC输入电压的频率更高的采样速率监视提供给有源整流器的AC输入电压,并且响应地计算与被监视的AC输入电压相关联的相位估计,所述相位估计用每个新样本 交流输入电压。 基于相位和频率估计,连同交流输入电流和直流输出电压的监控,控制架构计算用于产生脉宽调制(PWM)控制信号的电压指令,以提供固态开关器件 在有源整流器中。