公开(公告)号：US09853588B2

公开(公告)日：2017-12-26

申请号：US14997900

申请日：2016-01-18

Applicant: Emerson Climate Technologies, Inc.

Inventor： Charles E. Green ,  Joseph G. Marcinkiewicz

IPC: H02P1/30 ,  H02P1/52 ,  H02P3/00 ,  H02P7/06 ,  H02P27/08 ,  H02P27/04 ,  H02P23/26 ,  H02P23/30 ,  H02P23/14

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.

公开(公告)号：US09698721B2

公开(公告)日：2017-07-04

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: H02P1/00 ,  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.

公开(公告)号：US09190926B2

公开(公告)日：2015-11-17

申请号：US14372980

申请日：2012-10-18

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yasutaka Taguchi

IPC: H02M1/42 ,  H02M5/458 ,  H02M1/12 ,  H02P27/06 ,  H02M7/48 ,  H02M7/537

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 diode bridge has a pair of input ends to which an alternating current is inputted from an AC power supply, and a pair of output ends which output a direct current. A boost chopper circuit is connected to the pair of output ends, and sets up a DC voltage inputted thereto. The boost chopper circuit functions as a power factor correction circuit. A smoothing capacitor is connected to an output side of the boost chopper circuit, and smoothes the voltage across the smoothing capacitor. An inverter receives the voltage across the smoothing capacitor to apply AC power to a load. A leakage current reduction device outputs a compensating current which compensates for a leakage current leaking from the load. The leakage current reduction device outputs the compensating current, except near the zero crossing of an AC voltage inputted from the AC power supply.

Abstract translation: 二极管桥具有一对输入端，从AC电源输入交流电，输出一对直流电。 升压斩波电路连接到一对输出端，并且设置输入的直流电压。 升压斩波电路用作功率因数校正电路。 平滑电容器连接到升压斩波电路的输出侧，并使平滑电容器两端的电压平滑。 逆变器接收平滑电容器两端的电压，向负载施加交流电。 泄漏电流降低装置输出补偿从负载泄漏的漏电流的补偿电流。 泄漏电流降低装置输出补偿电流，除了从交流电源输入的交流电压的过零点附近。

公开(公告)号：US20150084562A1

公开(公告)日：2015-03-26

申请号：US14559378

申请日：2014-12-03

Applicant: Regal Beloit America, Inc.

Inventor： ROGER CARLOS BECERRA ,  YAO DA

IPC: H02P29/00 ,  H02P6/14

CPC classification number: H02P29/0038 ,  H02M1/126 ,  H02M1/4266 ,  H02P6/14 ,  H02P29/50 ,  H02P2201/15 ,  Y02B70/123

Abstract: A drive circuit is provided for reducing conducted electromagnetic interference provided by a power line to a motor controller. The drive circuit includes an EMI filter having first and second EMI filter input terminals, and first and second EMI filter output terminals. The first input terminal is configured to be coupled to a first AC line output and the second input terminal is configured to be coupled to a second AC line output. The drive circuit includes a rectifier portion having first and rectifier input terminals coupled to the first and second EMI output terminals, respectively. The drive circuit includes at least two series-coupled filter capacitors after the rectifier portion and a PFC choke coupled at a first end to one of the EMI filter output terminals and to one of the first and second rectifier input terminals, and at a second end between the series-coupled filter capacitors.

Abstract translation: 提供驱动电路，用于将由电力线提供的传导电磁干扰降低到电动机控制器。 驱动电路包括具有第一和第二EMI滤波器输入端子以及第一和第二EMI滤波器输出端子的EMI滤波器。 第一输入端子被配置为耦合到第一AC线路输出，并且第二输入端子被配置为耦合到第二AC线路输出。 驱动电路包括整流部分，其具有分别耦合到第一和第二EMI输出端的第一和整流器输入端。 驱动电路包括在整流器部分之后的至少两个串联耦合的滤波电容器，以及在第一端处耦合到EMI滤波器输出端子之一以及第一和第二整流器输入端子之一的PFC扼流圈，并且在第二端 串联耦合滤波电容之间。

公开(公告)号：US08698433B2

公开(公告)日：2014-04-15

申请号：US12852619

申请日：2010-08-09

Applicant: Charles E. Green

Inventor： Charles E. Green

IPC: H02P21/00

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

Abstract: A current control module generates a voltage request based on a d-axis current (Idr) demand. A switching control module controls a motor based on the voltage request and generates an out-of-volts (OOV) signal based on a comparison of the voltage request and an available voltage. An Idr injection module generates the Idr demand based on a direct current (DC) bus voltage, a rotational speed, and a demanded torque and selectively applies a first adjustment to the Idr demand. The Idr injection module identifies whether an improvement resulted from the first adjustment, wherein the improvement is identified based on at least one of (i) a measured current of the motor and (ii) the OOV signal. The Idr injection module selectively applies a second adjustment to the Idr demand based on whether the improvement is identified.

Abstract translation: 电流控制模块基于d轴电流（Idr）需求产生电压请求。 开关控制模块基于电压请求来控制电动机，并且基于电压请求和可用电压的比较产生失伏（OOV）信号。 Idr注入模块基于直流（DC）总线电压，转速和所需转矩产生Idr需求，并且选择性地对Idr需求进行第一调整。 Idr注入模块识别是否由第一调整产生改进，其中基于（i）电动机的测量电流和（ii）OOV信号中的至少一个来识别改进。 Idr注入模块基于是否识别出改进来选择性地对Idr需求进行第二调整。

公开(公告)号：US08676392B2

公开(公告)日：2014-03-18

申请号：US13709755

申请日：2012-12-10

Applicant: Shinji Arinaga ,  Takatoshi Matsushita ,  Tsuyoshi Wakasa ,  Akira Yasugi ,  Masaaki Shibata

Inventor： Shinji Arinaga ,  Takatoshi Matsushita ,  Tsuyoshi Wakasa ,  Akira Yasugi ,  Masaaki Shibata

IPC: G05D3/12 ,  F03D9/00

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 using power factor correction levels set for the individual wind turbines.

Abstract translation: 目的是提高功率因数调整的精度。 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子指令值。

公开(公告)号：US20140042948A1

公开(公告)日：2014-02-13

申请号：US13963317

申请日：2013-08-09

Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.

Inventor： Charles E. Green ,  Joseph G. Marcinkiewicz

IPC: H02P27/04

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

Abstract: A control system for a motor includes a pulse-width modulation module, a pulse skip determination module, and a duty cycle adjustment module. The pulse-width modulation module generates three duty cycle values based on three voltage requests, respectively. A plurality of solid-state switches control three phases of the motor in response to the three duty cycle values, respectively. The pulse skip determination module generates a pulse skip signal. The duty cycle adjustment module selectively prevents the plurality of solid-state switches from switching during intervals specified by the pulse skip signal.

Abstract translation: 电动机的控制系统包括脉冲宽度调制模块，脉冲跳跃确定模块和占空比调节模块。 脉冲宽度调制模块分别基于三个电压请求产生三个占空比值。 多个固态开关分别响应于三个占空比值控制电动机的三相。 脉冲跳过确定模块产生脉冲跳越信号。 占空比调整模块选择性地防止多个固态开关在由脉冲跳跃信号指定的间隔期间切换。

公开(公告)号：US08527104B2

公开(公告)日：2013-09-03

申请号：US12674539

申请日：2007-12-14

Applicant: Shinji Arinaga ,  Takatoshi Matsushita ,  Tsuyoshi Wakasa ,  Masaaki Shibata ,  Akira Yasugi

Inventor： Shinji Arinaga ,  Takatoshi Matsushita ,  Tsuyoshi Wakasa ,  Masaaki Shibata ,  Akira Yasugi

IPC: G05D19/02

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

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

Abstract translation: 目的是提高无功功率调整的精度。 通过使用针对各个风力涡轮机设定的无功功率校正水平来校正互连节点A的预定无功功率指令值来确定与各个风力涡轮机对应的无功功率指令值。

公开(公告)号：US08493014B2

公开(公告)日：2013-07-23

申请号：US12852961

申请日：2010-08-09

Applicant: Michael I. Henderson ,  Joseph G. Marcinkiewicz ,  Charles E. Green

Inventor： Michael I. Henderson ,  Joseph G. Marcinkiewicz ,  Charles E. Green

IPC: H02P7/00

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

Abstract: A motor control system includes a control module, a switching module, and a filtering module. The control module determines output voltages for operating a motor based on a torque demand. The switching module generates switching signals for an inverter that drives the motor. The switching module generates the switching signals based on the output voltages. The switching module generates an out-of-volts (OOV) signal according to a comparison based on the output voltages, a maximum duty cycle, and a voltage of a direct current (DC) bus that provides power to the inverter. The filtering module generates an OOV amount by filtering the OOV signal. The control module selectively limits the torque demand based on the OOV amount.

Abstract translation: 电机控制系统包括控制模块，开关模块和过滤模块。 控制模块基于转矩需求确定用于操作电动机的输出电压。 开关模块为驱动电机的变频器产生开关信号。 开关模块根据输出电压产生开关信号。 开关模块根据输出电压，最大占空比和向逆变器供电的直流（DC）总线的电压进行比较，产生失伏（OOV）信号。 滤波模块通过对OOV信号进行滤波生成OOV量。 控制模块基于OOV量有选择地限制扭矩需求。

公开(公告)号：US20130181654A1

公开(公告)日：2013-07-18

申请号：US13352793

申请日：2012-01-18

Applicant: Gregory I. Rozman ,  Thomas A. Duclos ,  Duane A. James

Inventor： Gregory I. Rozman ,  Thomas A. Duclos ,  Duane A. James

IPC: H02P27/00

CPC classification number: H02M5/4585 ,  H02M1/12 ,  H02P27/085 ,  H02P2201/03 ,  H02P2201/15

Abstract: An active rectifier controller controls operation of an active rectifier employed in a power conversion system that supplies a direct current (DC) output to an inverter that converts the DC output to an AC output supplied to an AC motor. The active rectifier controller includes a field-oriented control (FOC) controller that monitors an alternating current (AC) input currents provided to the active rectifier, the DC output provided to the inverter, and speed of the AC motor. The FOC controller selects a reference DC output value based on the speed of the AC motor and compares the monitored DC output to the reference DC output as part of the FOC control algorithm used to generate control signals. A PWM signal generator generates PWM signals for controlling the active rectifier based on the control signals.

Abstract translation: 有源整流器控制器控制在将直流输出转换为提供给交流电动机的交流输出的逆变器提供直流（DC）输出的电力转换系统中使用的有源整流器的操作。 有源整流器控制器包括一个磁场定向控制（FOC）控制器，用于监控提供给有源整流器的交流（AC）输入电流，提供给逆变器的直流输出以及交流电动机的速度。 FOC控制器基于交流电机的速度选择参考直流输出值，并将监控的直流输出与参考直流输出进行比较，作为用于产生控制信号的FOC控制算法的一部分。 PWM信号发生器根据控制信号生成用于控制有源整流器的PWM信号。