公开(公告)号：EP2221958A1

公开(公告)日：2010-08-25

申请号：EP07850625.0

申请日：2007-12-14

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： ARINAGA, Shinji ,  MATSUSHITA, Takatoshi ,  WAKASA, Tsuyoshi ,  SHIBATA, Masaaki ,  YASUGI, Akira

IPC: H02P9/00

CPC classification number: F03D7/00 ,  F03D7/028 ,  F03D7/048 ,  F05B2240/40 ,  H02J3/1885 ,  H02J3/386 ,  H02P23/26 ,  H02P2201/15 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/32

Abstract: An object is to improve the accuracy of power factor adjustment. Power-factor command values corresponding to individual wind turbines are determined by correcting a predetermined power-factor command value for an interconnection node A using power factor correction levels set for the individual wind turbines.

Abstract translation: 一个目的是提高功率因数调节的精度。 通过使用针对各个风力涡轮机设定的功率因数校正水平来校正互连节点A的预定功率因子命令值来确定与各个风力涡轮机对应的功率因数指令值。

公开(公告)号：EP2221957B1

公开(公告)日：2017-11-01

申请号：EP07850615.1

申请日：2007-12-14

Applicant: Mitsubishi Heavy Industries, Ltd.

Inventor： ARINAGA, Shinji ,  MATSUSHITA, Takatoshi ,  WAKASA, Tsuyoshi ,  SHIBATA, Masaaki ,  YASUGI, Akira

IPC: F03D7/02 ,  F03D7/04 ,  H02P23/26 ,  H02J3/16 ,  H02J3/38

CPC classification number: F03D7/048 ,  F03D7/0284 ,  H02J3/16 ,  H02J3/386 ,  H02P23/26 ,  H02P2201/15 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34

公开(公告)号：EP3229368A1

公开(公告)日：2017-10-11

申请号：EP15865157.0

申请日：2015-11-19

Applicant: Samsung Electronics Co., Ltd. ,  Research Business Foundation Sungkyunkwan University

Inventor： KIM, Jin-han ,  LEE, Byoung-kuk ,  KIM, Min-kook ,  KIM, Sun-jin ,  PARK, Hyun-soo ,  WOO, Dong-gyun

IPC: H02P27/06 ,  F24F11/02 ,  F24F13/14

CPC classification number: H02P27/06 ,  F24F11/89 ,  F24F13/14 ,  F25B49/025 ,  H02P23/26 ,  H02P2201/07 ,  H02P2201/15

Abstract: A motor driving device is disclosed. The motor driving device includes: a rectifier rectifying alternating current (AC) power into direct current (DC) power to output an input voltage; a first buck-boost converter including a plurality of switches for converting the input voltage and having a buck mode of stepping down the input voltage and a boost mode of stepping up the input voltage; an inverter converting a DC-link voltage transformed from the first buck-boost converter into an AC voltage and transferring the AC voltage to a motor; and a controller receiving motor information related to driving of the motor, comparing magnitudes of a desired DC-link voltage depending on the received motor information and the input voltage with each other, and performing a control to switch only any one of the plurality of switches so that the first buck-boost converter is operated in the buck mode or the boost mode.

Abstract translation: 公开了一种电动机驱动装置。 该电动机驱动装置包括：将交流（AC）电整流为直流（DC）电以输出输入电压的整流器; 第一降压 - 升压转换器，其包括用于转换输入电压并具有降低输入电压的降压模式的多个开关以及升高输入电压的升压模式; 逆变器，将从第一升降压转换器转换的DC链路电压转换成AC电压并将该AC电压传送到电动机; 以及控制器，该控制器接收与电动机的驱动相关的电动机信息，将取决于所接收的电动机信息的期望的DC链路电压的大小与输入电压彼此进行比较，并且执行控制以仅切换多个开关中的任何一个 使得第一升降压转换器以降压模式或升压模式运行。

公开(公告)号：EP2465196A4

公开(公告)日：2017-03-29

申请号：EP10808640

申请日：2010-08-10

Applicant: EMERSON CLIMATE TECHNOLOGIES

Inventor： GREEN CHARLES E

IPC: F25B49/02 ,  H02M7/48 ,  H02P21/00 ,  H02P21/06 ,  H02P27/06

CPC classification number: H02P21/06 ,  F25B49/025 ,  H02P21/0089 ,  H02P2201/15

公开(公告)号：EP2808990A4

公开(公告)日：2015-09-02

申请号：EP12866870

申请日：2012-10-18

Applicant: DAIKIN IND LTD

Inventor： TAGUCHI YASUTAKA

IPC: H02M1/12 ,  H02M1/00 ,  H02M1/42 ,  H02M5/458 ,  H02P27/06

CPC classification number: H02M5/458 ,  H02M1/12 ,  H02M1/4225 ,  H02M7/48 ,  H02M7/537 ,  H02M2001/0048 ,  H02M2001/123 ,  H02P27/06 ,  H02P2201/15 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A compensating current is outputted except during an interval where a leakage current is not pronounced, so that losses resulting from the passage of the compensating current are reduced. A diode bridge (11) has a pair of input ends to which an alternating current is inputted from an AC power supply (3), and a pair of output ends (111, 112) which output a direct current. A boost chopper circuit (12) is connected to the pair of output ends (111, 112), and sets up a DC voltage inputted thereto. The boost chopper circuit (12) functions as a power factor correction circuit. A smoothing capacitor (13) is connected to an output side of the boost chopper circuit (12), and smoothes the voltage across the smoothing capacitor (13). An inverter (14) receives the voltage across the smoothing capacitor (13) to apply AC power to a load (4). A leakage current reduction device (2) outputs a compensating current (Ic) which compensates for a leakage current (Ia) leaking from the load (4). The leakage current reduction device (2) outputs the compensating current (Ic) except near the zero crossing of the alternating current inputted from the AC power supply (3).

公开(公告)号：EP2043241A2

公开(公告)日：2009-04-01

申请号：EP08165216.6

申请日：2008-09-26

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Pande, Manish ,  Li, Yunwei

IPC: H02M1/42

CPC classification number: H02M5/4585 ,  H02M1/4216 ,  H02M1/4233 ,  H02M5/4505 ,  H02P23/26 ,  H02P2201/15 ,  Y02B70/126 ,  Y02P80/112

Abstract: The switching rectifier and switching inverter on a motor drive unit are modulated to indirectly change the magnitude of current and voltage stored in DC link by controlling the magnetic field of the motor to correct for both power factor lead and power factor lag over a wide range of motor speeds and conditions while maintaining a predetermined motor operating point.

Abstract translation: 电动机驱动单元上的开关整流器和开关变换器被调制以通过控制电动机的磁场来间接地改变存储在直流母线中的电流和电压的大小，从而在宽范围内校正功率因数导通和功率因数滞后 同时保持预定的电动机工作点。

公开(公告)号：US11804787B2

公开(公告)日：2023-10-31

申请号：US17273906

申请日：2018-09-28

Applicant: Mitsubishi Electric Corporation

Inventor： Keisuke Uemura ,  Satoru Ichiki ,  Takuya Shimomugi ,  Koichi Arisawa ,  Kenji Iwazaki

IPC: H02M7/219 ,  F24F11/88 ,  H02M1/00 ,  H02P27/08

CPC classification number: H02M7/219 ,  F24F11/88 ,  H02M1/0009 ,  H02M1/0054 ,  H02P27/08 ,  H02P2201/15

Abstract: A power converting apparatus includes: a reactor that includes a first terminal and a second terminal, the first terminal being connected to an alternating-current power supply; a bridge circuit that is connected to the second terminal of the reactor, includes at least one or more switching elements, and converts an alternating-current voltage output from the alternating-current power supply into a direct-current voltage; a power-supply current detecting unit that detects a current from the alternating-current power supply; and a control unit that controls ON and OFF of the switching elements depending on a current value detected by the power-supply current detecting unit, in which two or more current thresholds for controlling ON and OFF of the switching elements are included.

公开(公告)号：US20170163180A1

公开(公告)日：2017-06-08

申请号：US14238179

申请日：2012-06-28

Applicant: Shunxin ZHOU

Inventor： Shunxin ZHOU

IPC: H02P6/04 ,  H02P23/26 ,  H02P27/08

CPC classification number: H02P6/04 ,  H02P6/005 ,  H02P23/26 ,  H02P27/06 ,  H02P27/08 ,  H02P27/16 ,  H02P2201/15

Abstract: A control system to realize input power changing along with both loads and rotate speed by an inverter bridge dragging many sets of motors, is composed of a stator voltage regulating unit (1), a motor unit (2), a rotor speed control unit (3), an inverter bridge unit (4), a control drive unit (5) and a signal processing unit (6). By setting a power factor sensor, the phase voltage and phase current of the motor stator are acquired as a control signal to regulate the input power so as to make it change with loads. At the same time, by setting a voltage sensor and a current sensor, motor rotor phase voltage, rectifier output current, overvoltage protection current and chopper working current are acquired separately as a control signal to regulate the input power so as to make it change with the rotate speed, thus realizing input power changing along with both loads and rotate speed.

公开(公告)号：US20160294316A1

公开(公告)日：2016-10-06

申请号：US14877943

申请日：2015-10-08

Applicant: RHYMEBUS CORPORATION

Inventor： Ming-Shi HUANG ,  Chang-Ming WANG ,  Kuan-Cheng CHEN ,  Ming-Chang CHOU

IPC: H02P27/08

CPC classification number: H02P27/08 ,  H02M1/4216 ,  H02M3/1582 ,  H02P23/26 ,  H02P29/50 ,  H02P2201/07 ,  H02P2201/15 ,  Y02B70/126 ,  Y02P80/116

Abstract: AC motor driving system and driving method thereof are provided. The driving system and method are capable of increasing power factor, adjusting waveform of the DC ripple voltage for increasing driving efficiency. The driving system is basically constructed by connecting three circuits. The first circuit is a three-phase full wave rectifying circuit and is used to transfer commercial electricity to a first DC voltage. Then, the second circuit is used to transfer the first DC voltage to a second DC voltage that ripples voltage thereof having a semi-sinusoidal waveform. The third circuit is an AC driving circuit, and receives the second AC voltage for driving the AC motor. Thereby, the driving efficiency can be increased. The capacitance used in the present disclosure has low capacitance value, thus the power factor can be increased, and usage time of the AC motor driving apparatus can also be increased.

Abstract translation: 提供交流电动机驱动系统及其驱动方法。 驱动系统和方法能够提高功率因数，调整直流纹波电压的波形，提高驱动效率。 驱动系统基本上通过连接三个电路构成。 第一电路是三相全波整流电路，用于将商用电力转移到第一直流电压。 然后，第二电路用于将第一直流电压传送到具有半正弦波形的波纹电压的第二直流电压。 第三电路是AC驱动电路，并且接收用于驱动AC电动机的第二AC电压。 由此，能够提高驱动效率。 本公开中使用的电容器具有低电容值，因此可以提高功率因数，并且还可以增加AC电动机驱动装置的使用时间。

公开(公告)号：US20160211791A1

公开(公告)日：2016-07-21

申请号：US14997900

申请日：2016-01-18

Applicant: Emerson Climate Technologies, Inc.

Inventor： Charles E. GREEN ,  Joseph G. MARCINKIEWICZ

IPC: H02P27/08 ,  H02P23/14 ,  H02P23/30 ,  H02P23/26

CPC classification number: H02P27/08 ,  H02P23/14 ,  H02P23/26 ,  H02P23/30 ,  H02P27/04 ,  H02P27/085 ,  H02P2201/15 ,  H02P2205/05 ,  H02P2205/07

Abstract: A control circuit for a motor of a compressor includes an inverter control module configured to control power switching devices of an inverter to generate output voltages from a DC power supply. The output voltages are applied to windings of the motor. A current control module is configured to generate voltage signals based on a torque demand. The inverter control module controls the power switching devices according to the voltage signals. A selector is configured to output one of an open loop torque value and a closed loop torque value as the torque demand. An open loop torque module is configured to generate the open loop torque value. The open loop torque module is configured to apply an upper limit to the open loop torque value. The upper limit is based on a voltage of the DC power supply.

Abstract translation: 一种用于压缩机的电动机的控制电路，包括：逆变器控制模块，被配置为控制逆变器的功率开关装置，以产生来自直流电源的输出电压。 输出电压施加到电机的绕组。 电流控制模块被配置为基于转矩需求产生电压信号。 逆变器控制模块根据电压信号控制电源开关装置。 选择器被配置为输出开环扭矩值和闭环扭矩值中的一个作为扭矩需求。 开环扭矩模块被配置为产生开环扭矩值。 开环扭矩模块被配置为对开环扭矩值施加上限。 上限基于直流电源的电压。