公开(公告)号：US20150365020A1

公开(公告)日：2015-12-17

申请号：US14765420

申请日：2013-02-14

Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

Inventor： Hiroshi OGINO ,  Akinobu ANDO ,  Yasuhiko HOSOKAWA ,  Ryota OKUYAMA

IPC: H02P1/02 ,  H02M5/452 ,  H02P1/52 ,  H02M1/36

CPC classification number: H02P1/022 ,  H02M1/32 ,  H02M1/36 ,  H02M5/4505 ,  H02M5/452 ,  H02P1/52 ,  H02P2201/13

Abstract: A thyristor starting device includes: a converter which converts AC power supplied from an AC power source into DC power; a DC reactor which smooths a DC current; an inverter which converts the DC power provided from the converter into AC power, and supplies the AC power to a synchronous machine; a gate pulse generation circuit which generates a gate pulse to be provided to thyristors of the converter and the inverter; a control unit which sets a phase control angle of the gate pulse to be provided to the thyristors of the converter, by controlling a current of the converter such that the DC current flowing into the DC reactor matches a current command value; and an abnormality detection unit which compares a detection value of the DC current with the current command value, and determines an abnormality in the gate pulse based on a comparison result.

Abstract translation: 晶闸管启动装置包括：转换器，其将从AC电源提供的AC电力转换为DC电力; 直流电抗器，使直流电流平滑; 将从转换器提供的直流电力转换为交流电力的逆变器，并将交流电力提供给同步电机; 门脉冲发生电路，其生成要提供给转换器和逆变器的晶闸管的栅极脉冲; 控制单元，其通过控制转换器的电流使得流入DC电抗器的直流电流与电流指令值相匹配，来设定要提供给转换器的晶闸管的栅极脉冲的相位控制角; 以及异常检测单元，其将直流电流的检测值与电流指令值进行比较，并且基于比较结果来确定门脉冲中的异常。

公开(公告)号：US09209704B2

公开(公告)日：2015-12-08

申请号：US14360824

申请日：2012-10-09

Applicant: Xianghui Huang

Inventor： Xianghui Huang

IPC: H02M5/40 ,  H02M5/45 ,  H02P27/00 ,  H02P27/06 ,  H02M1/00

CPC classification number: H02M5/40 ,  H02M5/45 ,  H02M5/4505 ,  H02M2001/0074 ,  H02M2001/0077 ,  H02P27/00 ,  H02P27/06 ,  H02P2201/13 ,  H02P2207/076

Abstract: Embodiments described herein provide a power delivery system, as well as a method of configuring the power delivery system. The power delivery system includes two or more rectifiers electrically coupled to an AC power source and configured to generate a direct current. The power delivery system also includes two or more inverters configured to receive the direct current and generate an alternating current waveform for powering a load. Moreover, the two or more rectifiers and the two or more inverters are coupled in series with each other through an inductor.

Abstract translation: 本文所述的实施例提供了一种功率输送系统，以及配置电力输送系统的方法。 电力输送系统包括电耦合到AC电源并被配置为产生直流电的两个或更多个整流器。 电力输送系统还包括被配置为接收直流电并产生用于为负载供电的交流波形的两个或多个逆变器。 此外，两个以上的整流器和两个以上的反相器通过电感器彼此串联连接。

公开(公告)号：US08570775B2

公开(公告)日：2013-10-29

申请号：US13029209

申请日：2011-02-17

Applicant: Lixiang Wei ,  Yuan Xiao ,  Richard Lukaszewski ,  Navid R. Zargari

Inventor： Lixiang Wei ,  Yuan Xiao ,  Richard Lukaszewski ,  Navid R. Zargari

IPC: H02M1/12 ,  H02H7/122

CPC classification number: H02M5/4585 ,  H02P27/06 ,  H02P29/0241 ,  H02P2201/13

Abstract: Power conversion systems and control techniques are presented in which a bus transient control component bypasses selected phases of a rectifier during a protective mode of operation to reduce common mode voltages or currents.

Abstract translation: 提供了功率转换系统和控制技术，其中总线瞬态控制组件在保护操作模式期间绕过整流器的选定相以减少共模电压或电流。

公开(公告)号：US08310083B2

公开(公告)日：2012-11-13

申请号：US12840423

申请日：2010-07-21

Applicant: Johannes Huber ,  Lembit Salasoo ,  Alexander Walsch ,  Michal-Wolfgang Waszak ,  Alexander Felix Fiseni ,  Stefan Brandhoff ,  Karl Kyrberg

Inventor： Johannes Huber ,  Lembit Salasoo ,  Alexander Walsch ,  Michal-Wolfgang Waszak ,  Alexander Felix Fiseni ,  Stefan Brandhoff ,  Karl Kyrberg

IPC: B60L1/00

CPC classification number: H02J1/102 ,  H02P2201/13 ,  Y10T307/582 ,  Y10T307/707

Abstract: An apparatus includes a DC-link, a voltage converter, a bus voltage controller, and a supervisory controller. The voltage converter is configured to convert a first DC voltage into a second DC voltage based on a command signal and based on an adjustment signal and to supply the second DC voltage to the DC-link. The bus voltage controller is configured to iterate calculation of the adjustment signal to communicate each iterated calculation of the adjustment signal to the voltage converter. The supervisory controller is configured to iterate calculation of the command signal and to communicate each iterated calculation of the command signal to the voltage converter and to the bus voltage controller. A frequency of the bus voltage controller to communicate each iterated calculation of the adjustment signal is higher than a frequency of the supervisory controller to communicate each iterated calculation of the command signal.

Abstract translation: 一种装置包括直流链路，电压转换器，总线电压控制器和监控控制器。 电压转换器被配置为基于指令信号并且基于调整信号将第一直流电压转换为第二直流电压，并将第二直流电压提供给直流链路。 总线电压控制器被配置为迭代调整信号的计算，以将调节信号的每次迭代计算传送到电压转换器。 监控控制器被配置为迭代命令信号的计算，并且将命令信号的每个迭代计算传送到电压转换器和总线电压控制器。 总线电压控制器的频率通过每个迭代计算的调整信号高于监控器的频率来传达每次迭代计算的命令信号。

公开(公告)号：US20100253254A1

公开(公告)日：2010-10-07

申请号：US12636418

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.

Abstract translation: 混合同步电动机驱动电路和方法基于同步电机的速度在一个或两个或更多个模式下操作。 在第一模式中，同步电机由电流控制电压源逆变器（VSI）以相对较低的频率驱动。 在第二种模式中，同步电机通过负载换向逆变器（LCI）与VSI一起以较高的频率驱动。 在第二种模式下，LCI作为控制机器的主要电源，并确定机器的转矩和速度。 VSI通过补偿从LCI馈送到机器的主要谐波电流，作为谐波补偿器，使得同步电机将在其端子处看到正弦电流，从而看到正弦电压。 VSI还用于在基频下提供足够的无功功率，使逆变器中的晶闸管负载整流。

公开(公告)号：US20100025995A1

公开(公告)日：2010-02-04

申请号：US12183816

申请日：2008-07-31

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

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

IPC: F03D9/00 ,  H02J3/38 ,  H02P6/14

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

Abstract: Power conversion apparatus and methods are presented for providing 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: 提供了电力转换装置和方法，用于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，电流 CSC的源极整流器（CSR）被切换以提供基于电网功率因数反馈的同步电机的d轴控制，并且CSC的电流源逆变器（CSI）被切换以提供引导触发角控制和选择性 当电网电压下降到预定水平以下时，使用倾倒抵抗在故障模式下散发过量的发电机能量。

公开(公告)号：US4849870A

公开(公告)日：1989-07-18

申请号：US147404

申请日：1988-01-25

Applicant: Theodore M. Heinrich

Inventor： Theodore M. Heinrich

IPC: H02M7/17 ,  H02M5/45 ,  H02M7/12

CPC classification number: H02M5/4505 ,  H02P2201/13 ,  Y10T307/707

Abstract: An a-c drive having a plurality of parallel connected polyphase d-c link power converters is operated in currents and with the alternating output currents contributed by the respective power converters phase shifted by an amount which reduces selected harmonics in the composite output current.

公开(公告)号：US4600874A

公开(公告)日：1986-07-15

申请号：US705962

申请日：1985-02-26

Applicant: Leland C. Tupper ,  Loren H. Walker ,  Herbert W. Weiss ,  James W. Sember

Inventor： Leland C. Tupper ,  Loren H. Walker ,  Herbert W. Weiss ,  James W. Sember

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.

Abstract translation: 用于控制具有来自多相交流电源的电力提供的绕组的交流感应电动机的操作的系统包括连接在电源和感应电动机之间的用于向电动机提供电力的负载换向逆变电路。 响应于命令信号的控制器和指示电动机操作参数的反馈信号控制所述负载换向逆变器电路的操作。 还提供了一个固定电容器电路，其连接在电动机绕组之间，用于向所述负载换向逆变器电路和所述电动机提供无功伏安（VAR）。 最后，提供了连接在电动机绕组之间的可变VAR发生器，用于响应于第三反馈控制路径的输出而向所述负载换向逆变器电路和所述电动机提供VAR，该第三反馈控制路径也响应于指令信号和规定的操作参数 s）所述负载和/或所述换向逆变器。

公开(公告)号：US4385268A

公开(公告)日：1983-05-24

申请号：US229413

申请日：1981-01-29

Applicant: Roger B. Herbert ,  Louis W. Herchenroeder

Inventor： Roger B. Herbert ,  Louis W. Herchenroeder

IPC: H02P23/06 ,  H02P5/40

CPC classification number: H02P23/08 ,  H02P23/07 ,  H02P25/26 ,  H02P27/06 ,  H02P21/09 ,  H02P2201/13

Abstract: SCR devices replace the usual diodes of the rectifier bridge section of a wound-rotor slip-recovery system motor drive, and by selection of the retardation angle of the SCR's between either zero or close to 180.degree., two-quadrant operation is made possible, which includes reverse torque and reverse rotation, while controlling the retardation angle of the power line bridge of SCR's.

Abstract translation: SCR器件代替绕线转子滑移回收系统电机驱动器的整流桥部分的通常二极管，并且通过选择零点或接近180°之间的SCR的延迟角，可以进行两象限运算， 其中包括反向扭矩和反向旋转，同时控制SCR的电力线桥的延迟角。

公开(公告)号：US4277733A

公开(公告)日：1981-07-07

申请号：US17666

申请日：1979-03-05

Applicant: William A. Munson

Inventor： William A. Munson

IPC: H02P23/00 ,  H02K20060101 ,  H02P20060101 ,  H02P3/00 ,  H02P7/00 ,  H02P7/36

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

Abstract: A slip recovery system for a wound rotor induction motor is disclosed in which first and second inverters, connected in series, are coupled to the rotor of the induction motor. A switch is arranged in parallel with the second of these inverters, the switch being in the open position during starting and stopping of the motor, and being closed to short out the second inverter during normal running conditions. Thus, the first inverter need have only a voltage rating of such magnitude so as to satisfy the expected operating range for the wound rotor, while the second inverter need have only a voltage rating of sufficient magnitude to satisfy the additional capacity requirements for stopping and starting service. Thus, lower rated inverter components may be used with lower initial costs as well as concomitant lower operating costs.

Abstract translation: 公开了一种用于绕线转子感应电动机的滑动恢复系统，其中串联连接的第一和第二逆变器耦合到感应电动机的转子。 开关与这些逆变器中的第二个并联设置，开关在电动机起动和停止期间处于打开位置，并且在正常运行条件期间关闭以使第二逆变器短路。 因此，第一逆变器仅需要具有这样的大小的额定电压，以满足绕组转子的预期工作范围，而第二逆变器只需要具有足够大的电压额定值，以满足停止和启动的附加容量要求 服务。 因此，可以使用较低额定的逆变器部件，具有较低的初始成本以及伴随的较低运行成本。