Starter/generator system with DC link current control
    71.
    发明授权
    Starter/generator system with DC link current control 失效
    起动器/发电机系统,具有直流母线电流控制

    公开(公告)号:US5581168A

    公开(公告)日:1996-12-03

    申请号:US290436

    申请日:1994-08-15

    IPC分类号: F02N11/04 H02P9/08 H02P7/00

    摘要: A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an exciter field winding rotatable with respect to the exciter armature winding, and a main generator portion having a main generator armature winding and a main generator field winding rotatable with respect to the main generator armature winding. An inverter is coupled to supply power to the main generator portion armature winding via a DC link during the starting mode of operation, and a controller is coupled to the DC link for controlling the magnitude of the DC link current provided to the inverter during the starting mode of operation.

    摘要翻译: 可用于起动操作模式和发电运行模式的同步发电机包括永久磁铁发生器,其具有永磁体和相对于永磁体可旋转的电枢绕组,激励器部分具有励磁机电枢绕组和励磁场 能够相对于励磁机电枢绕组旋转的主绕组,以及具有主发电机电枢绕组的主发电机部分和能够相对于主发电机电枢绕组旋转的主发电机励磁绕组。 逆变器被耦合以在启动操作模式期间经由DC链路向主发电机部分电枢绕组供电,并且控制器耦合到DC链路,用于控制在启动期间提供给逆变器的DC链路电流的大小 操作模式。

    Rotor position detector with back EMF voltage estimation
    72.
    发明授权
    Rotor position detector with back EMF voltage estimation 失效
    具有反电动势电压估计的转子位置检测器

    公开(公告)号:US5384527A

    公开(公告)日:1995-01-24

    申请号:US61364

    申请日:1993-05-12

    摘要: A detector for detecting rotor position of a brushless generator having a motive power shaft and a main generator portion having a set of armature phase windings capable of receiving AC power and developing a back EMF voltage during operation in a starting mode, includes a circuit coupled to the set of armature phase windings and capable of responding to the AC power for producing a back EMF estimate signal representing an estimate of the back EMF voltage. The detector also includes a circuit for converting the back EMF estimate signal into an indication of the angular position of the motive power shaft.

    摘要翻译: 一种用于检测具有动力轴的无刷发电机的转子位置的检测器和具有能够在起动模式下操作期间接收AC电力并且产生反电动势电压的一组电枢相绕组的主发电机部分,包括耦合到 该组电枢相绕组并且能够响应于交流电源以产生表示反电动势电压的估计的反电动势估计信号。 检测器还包括用于将反电动势估计信号转换成动力轴的角位置的指示的电路。

    Synchronous motor control
    73.
    发明授权
    Synchronous motor control 失效
    同步电机控制

    公开(公告)号:US5006768A

    公开(公告)日:1991-04-09

    申请号:US423940

    申请日:1989-10-19

    申请人: Gregory I. Rozman

    发明人: Gregory I. Rozman

    IPC分类号: H02P1/46

    CPC分类号: H02P1/46

    摘要: The problem of efficiently starting a motor (16) which is used to start an engine (12) during engine start is solved with a motor control unit (30) which includes a resolver (34) having a primary winding (34P) coupled to an oscillator (36). The resolver (34) includes two single-phase secondary windings (34S1, 34S2) which are placed in space-quadrature to each other and which develop signals proportional to the sine and cosine of the angular position of the rotor for the motor (16). The sine wave and the cosine wave are transferred to a phase conversion circuit (46) which develops three sinusoidal signals 120.degree. out of phase with respect to each other. Each of the three developed sinusoidal signals is supplied to a respective multiplier circuit (51-53) which also receives a current command. The output of each multiplier (51-53) is a sinusoidal current command signal. The command signal is applied as one input to a current control loop (60-62) which also receives an actual phase current signal developed by a current sensor (32A-32C) for each of the three phases. The output of each loop is a control signal to an inverter (26) which powers the motor (16).

    摘要翻译: 在发动机启动期间有效启动用于启动发动机(12)的电动机(16)的问题由电动机控制单元(30)解决,电动机控制单元(30)包括旋转变压器(34),其具有耦合到 振荡器(36)。 旋转变压器(34)包括两个单相次级绕组(34S1,34S2),它们彼此间隔正交放置并产生与用于电机(16)的转子的角位置的正弦和余弦成正比的信号, 。 正弦波和余弦波被传送到相位转换电路(46),该相位转换电路产生相对于彼此120°异相的三个正弦信号。 三个显影的正弦信号中的每一个被提供给也接收电流命令的相应乘法器电路(51-53)。 每个乘法器(51-53)的输出是正弦电流指令信号。 命令信号作为一个输入施加到电流控制回路(60-62),该电流控制回路(60-62)也接收由三个相位中的每一个的电流传感器(32A-32C)开发的实际相电流信号。 每个回路的输出是对电动机(16)供电的逆变器(26)的控制信号。

    Variable speed constant frequency start system with selectable input
power limiting
    74.
    发明授权
    Variable speed constant frequency start system with selectable input power limiting 失效
    变频恒频启动系统,可选输入功率限制

    公开(公告)号:US4949021A

    公开(公告)日:1990-08-14

    申请号:US270625

    申请日:1988-11-14

    IPC分类号: H02P9/14 F02N11/04 H02P9/08

    摘要: The problem of providing an engine starting system from any one of a plurality of input power sources is solved with an engine start control apparatus operating a generator as a synchronous motor and employing input power limiting. The motor receives power from a main inverter and an excitation inverter. These inverters are controlled by a control unit which provides for input power limiting and also constant power characteristics in the field weakening range. The control unit includes a pulse width modulation (PWM) generator which is responsive to a voltage command and a commutation command to develop switching signals for controlling the switches in the start inverter. The voltage command is used to vary the duty cycle of the PWM signals. The commutation angle command is used to control the timing of the PWM signals. In addition to commutation angle control, the start control system employs field weakening control to obtain constant power characteristics.

    摘要翻译: 用多台输入电源中的任何一个提供发动机启动系统的问题是用作为同步电动机操作发电机并采用输入功率限制的发动机启动控制装置来解决的。 电机从主变频器和励磁变频器接收电力。 这些逆变器由控制单元控制,该控制单元在弱磁区域中提供输入功率限制和恒功率特性。 控制单元包括脉冲宽度调制(PWM)发生器,该脉冲宽度调制(PWM)发生器响应于电压指令和换向指令,以开发用于控制起动逆变器中的开关的开关信号。 电压指令用于改变PWM信号的占空比。 换向角指令用于控制PWM信号的定时。 除了换向角控制之外,启动控制系统采用磁场弱化控制来获得恒定的功率特性。

    Active damping with a switched capacitor
    76.
    发明授权
    Active damping with a switched capacitor 有权
    开关电容器的主动阻尼

    公开(公告)号:US08952570B2

    公开(公告)日:2015-02-10

    申请号:US13218166

    申请日:2011-08-25

    IPC分类号: G05F1/10 H02J1/02 H02M1/15

    CPC分类号: H02J1/02 H02M1/15

    摘要: An active damping switching system includes an active damping switching apparatus, including a damping capacitor, a damping resistor coupled to the damping capacitor, an input switch coupled to the damping capacitor, an oscillator coupled to the input switch and configured to open and close the input switch at a frequency, a direct current power source coupled to the active damping switching apparatus, a constant power load and an input filter disposed between the constant power load and the active damping switching apparatus.

    摘要翻译: 主动阻尼开关系统包括主动阻尼开关装置,其包括阻尼电容器,耦合到阻尼电容器的阻尼电阻器,耦合到阻尼电容器的输入开关,耦合到输入开关并被配置为打开和闭合输入端的振荡器 开关频率,连接到主动阻尼开关装置的直流电源,恒功率负载和布置在恒功率负载和主动阻尼开关装置之间的输入滤波器。

    Direct current electric power system with active damping
    78.
    发明授权
    Direct current electric power system with active damping 有权
    具有主动阻尼的直流电力系统

    公开(公告)号:US08669743B2

    公开(公告)日:2014-03-11

    申请号:US13218172

    申请日:2011-08-25

    IPC分类号: G05F3/16

    CPC分类号: H02J1/02 H02H9/001

    摘要: An active damping switching system can include an active damper apparatus having a stabilization resistor, a stabilization switch coupled to the stabilization resistor, an active damper controller coupled to the stabilization switch, a current sensor coupled to the active damper controller. The system can further include a direct current power source coupled to the active damper apparatus, a constant power load and an input filter disposed between the constant power load and the active damper apparatus.

    摘要翻译: 主动阻尼切换系统可以包括具有稳定电阻器的主动阻尼器装置,耦合到稳定电阻器的稳定开关,耦合到稳定开关的主动阻尼器控制器,耦合到主动阻尼器控制器的电流传感器。 该系统还可以包括耦合到主动阻尼器装置的直流电源,恒功率负载和布置在恒功率负载和主动阻尼装置之间的输入滤波器。

    DUAL GENERATOR SYSTEM
    79.
    发明申请
    DUAL GENERATOR SYSTEM 有权
    双发电机系统

    公开(公告)号:US20130320763A1

    公开(公告)日:2013-12-05

    申请号:US13486829

    申请日:2012-06-01

    IPC分类号: H02J3/28

    CPC分类号: H02P9/02 H02P9/30 Y10T307/522

    摘要: A dual generator system includes a main generator and an auxiliary generator. The main generator generates at least a first phase main output and a second phase main output. The auxiliary generator generates at least a first phase auxiliary output and a second phase auxiliary output, wherein the first phase auxiliary output is combined with the first phase main output to generate a first phase main output. An auxiliary generator control unit (AGCU) monitors the first phase combined output and the second phase combined output and in response independently regulates the first phase auxiliary output and the second phase auxiliary output.

    摘要翻译: 双发电机系统包括主发电机和辅助发电机。 主发生器至少产生第一相主输出和第二相主输出。 辅助发电机产生至少第一相辅助输出和第二相辅助输出,其中第一相辅助输出与第一相主输出组合以产生第一相主输出。 辅助发电机控制单元(AGCU)监视第一相组合输出和第二相组合输出,并且响应独立地调节第一相辅助输出和第二相辅助输出。

    Electric power generating and distribution system comprising a decoupling filter and a solid state power controller
    80.
    发明授权
    Electric power generating and distribution system comprising a decoupling filter and a solid state power controller 有权
    发电和配电系统包括一个去耦滤波器和一个固态功率控制器

    公开(公告)号:US08536730B2

    公开(公告)日:2013-09-17

    申请号:US12834399

    申请日:2010-07-12

    IPC分类号: H02M7/02

    摘要: A method for operating an electric power generating system (EPGS) includes, in one aspect, detecting current limiting conditions in the SSPC, wherein the SSPC includes a main solid state switch in series with an output filter that includes a first solid state switch, and wherein a decoupling filter comprises a second solid state switch. Another aspect includes, based on the detection of the current limiting conditions in the SSPC, opening the first solid state switch and the second solid state switch; detecting an absence of current limiting conditions in the SSPC; and, based on the detection of the absence of current limiting conditions in the SSPC, closing the first solid state switch and the second solid state switch, and powering a direct current (DC) load by a generator of the EPGS via the output filter and the SSPC.

    摘要翻译: 一种用于操作发电系统(EPGS)的方法在一个方面包括检测SSPC中的电流限制条件,其中SSPC包括与包括第一固态开关的输出滤波器串联的主固态开关,以及 其中去耦滤波器包括第二固态开关。 另一方面包括:基于SSPC中的电流限制条件的检测,打开第一固态开关和第二固态开关; 检测SSPC中没有限流条件; 并且基于SSPC中没有电流限制条件的检测,关闭第一固态开关和第二固态开关,以及通过输出滤波器由EPGS的发生器为直流负载供电;以及 SSPC。