Leakage current detection and switched on/off compensating current
    81.
    发明授权
    Leakage current detection and switched on/off compensating current 有权
    泄漏电流检测和开/关补偿电流

    公开(公告)号:US09312780B2

    公开(公告)日:2016-04-12

    申请号:US14374456

    申请日:2012-10-18

    Inventor: Yasutaka Taguchi

    Abstract: A converter to which an alternating current is inputted from an AC power supply rectifies the alternating current to output it to a DC link. An inverter is connected through the DC link to the converter and converts a direct current into an alternating current to output it to a load. A leakage current detector outputs a detection current corresponding to a leakage current leaking from the load. A compensating current output end is connected to a location where the leakage current leaks, and outputs a compensating current compensating for the leakage current in response to the detection current. A switch sets whether to input the detection current to the compensating current output section or not.

    Abstract translation: 从AC电源输入交流电的A转换器对交流电进行整流,将其输出到DC链路。 逆变器通过直流链路连接到转换器,并将直流电转换为交流电,将其输出到负载。 泄漏电流检测器输出与从负载泄漏的泄漏电流相对应的检测电流。 补偿电流输出端连接到泄漏电流泄漏的位置,并响应于检测电流输出补偿电流的补偿电流。 开关设置是否将检测电流输入到补偿电流输出部。

    POWER CONVERSION CIRCUIT
    82.
    发明申请
    POWER CONVERSION CIRCUIT 有权
    电源转换电路

    公开(公告)号:US20150009725A1

    公开(公告)日:2015-01-08

    申请号:US14374456

    申请日:2012-10-18

    Inventor: Yasutaka Taguchi

    Abstract: A converter to which an alternating current is inputted from an AC power supply rectifies the alternating current to output it to a DC link. An inverter is connected through the DC link to the converter and converts a direct current into an alternating current to output it to a load. A leakage current detector outputs a detection current corresponding to a leakage current leaking from the load. A compensating current output end is connected to a location where the leakage current leaks, and outputs a compensating current compensating for the leakage current in response to the detection current. A switch sets whether to input the detection current to the compensating current output section or not.

    Abstract translation: 从AC电源输入交流电的A转换器对交流电进行整流,将其输出到DC链路。 逆变器通过直流链路连接到转换器,并将直流电转换为交流电,将其输出到负载。 泄漏电流检测器输出与从负载泄漏的泄漏电流相对应的检测电流。 补偿电流输出端连接到泄漏电流泄漏的位置,并响应于检测电流输出补偿电流的补偿电流。 开关设置是否将检测电流输入到补偿电流输出部。

    POWER CONVERSION CIRCUIT
    83.
    发明申请
    POWER CONVERSION CIRCUIT 有权
    电源转换电路

    公开(公告)号:US20150009723A1

    公开(公告)日:2015-01-08

    申请号:US14372980

    申请日:2012-10-18

    Inventor: Yasutaka Taguchi

    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。

    Motor power factor correction apparatus and method
    85.
    发明授权
    Motor power factor correction apparatus and method 有权
    电机功率因数校正装置及方法

    公开(公告)号:US08264182B2

    公开(公告)日:2012-09-11

    申请号:US12672688

    申请日:2008-08-13

    Applicant: Krishnan Ramu

    Inventor: Krishnan Ramu

    CPC classification number: H02P25/092 H02P2201/15 Y02P80/112

    Abstract: A power factor correction system includes a rectifier that rectifies the voltage of an alternating current (ac) power source to produce a voltage waveform that transitions, in a half sinusoid, from a minimum amplitude to a maximum amplitude and back to the minimum amplitude twice in the period of the ac power source. A phase winding of a motor conveys current induced by the voltage waveform, and a regulator regulates the flow of the current conveyed by the phase winding for storage as energy in a storage component.

    Abstract translation: 功率因数校正系统包括整流器,其对交流(AC)电源的电压进行整流,以产生电压波形,该电压波形在半正弦曲线中从最小幅度转换到最大幅度,并返回到最小振幅两次 交流电源的周期。 电动机的相绕组传递由电压波形引起的电流,并且调节器调节由相绕组输送的电流的流量作为能量存储在存储部件中。

    CONTROLLER AND METHOD FOR ESTIMATING, MANAGING, AND DIAGNOSING MOTOR PARAMETERS
    86.
    发明申请
    CONTROLLER AND METHOD FOR ESTIMATING, MANAGING, AND DIAGNOSING MOTOR PARAMETERS 有权
    用于估计,管理和诊断电机参数的控制器和方法

    公开(公告)号:US20110031920A1

    公开(公告)日:2011-02-10

    申请号:US12852961

    申请日:2010-08-09

    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。

    Portable chargers having power factor correction capability for use with electric vehicles
    87.
    发明授权
    Portable chargers having power factor correction capability for use with electric vehicles 有权
    具有用于电动车辆的功率因数校正能力的便携式充电器

    公开(公告)号:US07598703B2

    公开(公告)日:2009-10-06

    申请号:US11648246

    申请日:2006-12-29

    Abstract: A type of portable chargers with power factor correction capability for use with electric vehicles comprises of a filtering rectifier module, an integrated circuit power supply module, a DC-DC PFC module and a DC-DC BUCK module. The filtering rectifier module has one input port and two output ports. The IC power supply module has one input port and two output ports. The DC-DC PFC module has two input ports and one output port. The DC-DC BUCK module has two input ports and one output port. The two output ports of the filtering rectifier module are connected to the input port of IC power supply module and the input port of the DC-DC PFC module respectively. The output port of the DC-DC PFC module is connected to one of the input ports of the DC-DC BUCK module. The two output ports of IC power supply module are connected, respectively, to the other input port of the DC-DC PFC module and to the other input port of the DC-DC BUCK module. This new type of portable chargers embodied with this invention can effectively reduce reactive power in the power system and develop greater power.

    Abstract translation: 一种具有用于电动车辆的功率因数校正能力的便携式充电器包括滤波整流器模块,集成电路电源模块,DC-DC PFC模块和DC-DC BUCK模块。 滤波整流模块有一个输入端口和两个输出端口。 IC电源模块有一个输入端口和两个输出端口。 DC-DC PFC模块有两个输入端口和一个输出端口。 DC-DC BUCK模块有两个输入端口和一个输出端口。 滤波整流模块的两个输出端口分别连接到IC电源模块的输入端口和DC-DC PFC模块的输入端口。 DC-DC PFC模块的输出端口连接到DC-DC BUCK模块的一个输入端口。 IC电源模块的两个输出端口分别连接到DC-DC PFC模块的另一个输入端口和DC-DC BUCK模块的另一个输入端口。 利用本发明体现的这种新型便携式充电器可以有效地降低电力系统中的无功功率并开发更大的功率。

    Portable chargers for use with electric vehicles
    88.
    发明申请
    Portable chargers for use with electric vehicles 有权
    便携式充电器,用于电动车辆

    公开(公告)号:US20070153560A1

    公开(公告)日:2007-07-05

    申请号:US11648246

    申请日:2006-12-29

    Abstract: A type of portable chargers with power factor correction capability for use with electric vehicles comprises of a filtering rectifier module, an integrated circuit power supply module, a DC-DC PFC module and a DC-DC BUCK module. The filtering rectifier module has one input port and two output ports. The IC power supply module has one input port and two output ports. The DC-DC PFC module has two input ports and one output port. The DC-DC BUCK module has two input ports and one output port. The two output ports of the filtering rectifier module are connected to the input port of IC power supply module and the input port of the DC-DC PFC module respectively. The output port of the DC-DC PFC module is connected to one of the input ports of the DC-DC BUCK module. The two output ports of IC power supply module are connected, respectively, to the other input port of the DC-DC PFC module and to the other input port of the DC-DC BUCK module. This new type of portable chargers embodied with this invention can effectively reduce reactive power in the power system and develop greater power.

    Abstract translation: 一种具有用于电动车辆的功率因数校正能力的便携式充电器包括滤波整流器模块,集成电路电源模块,DC-DC PFC模块和DC-DC BUCK模块。 滤波整流模块有一个输入端口和两个输出端口。 IC电源模块有一个输入端口和两个输出端口。 DC-DC PFC模块有两个输入端口和一个输出端口。 DC-DC BUCK模块有两个输入端口和一个输出端口。 滤波整流模块的两个输出端口分别连接到IC电源模块的输入端口和DC-DC PFC模块的输入端口。 DC-DC PFC模块的输出端口连接到DC-DC BUCK模块的一个输入端口。 IC电源模块的两个输出端口分别连接到DC-DC PFC模块的另一个输入端口和DC-DC BUCK模块的另一个输入端口。 利用本发明体现的这种新型便携式充电器可以有效地降低电力系统中的无功功率并开发更大的功率。

    一种电机驱动系统的控制方法、控制装置和变频空调器

    公开(公告)号:WO2018099187A1

    公开(公告)日:2018-06-07

    申请号:PCT/CN2017/105300

    申请日:2017-10-09

    Inventor: 霍军亚

    CPC classification number: H02M1/143 H02P27/08 H02P2201/15

    Abstract: 一种电机驱动系统的控制方法、控制装置和变频空调器,通过检测直流母线电压值以及驱动电机的三相电流值(S10),并根据直流母线电压获取平均电压值(S20),进而根据直流母线电压值和平均电压值获取电压波动量(S30),最后根据电压波动量、直流母线电压值和三相电流值生成控制信号对所述电机驱动系统的逆变器进行控制,以驱动电机运行(S40)。该控制方法能够实时检测直流母线电压的波动,并通过检测波动来实时调节电机驱动系统中的Iq电流值,从而减小直流母线电压的波动量。

    電力変換回路
    90.
    发明申请
    電力変換回路 审中-公开
    电源转换电路

    公开(公告)号:WO2013111403A1

    公开(公告)日:2013-08-01

    申请号:PCT/JP2012/076919

    申请日:2012-10-18

    Inventor: 田口 泰貴

    Abstract:  漏洩電流が顕著ではない区間以外で補償電流を出力することで、補償電流を流すことによる損失を低減する。コンバータ(11)は交流電源(3)から交流が入力され、これを整流して直流リンク(15)へ出力する。インバータ(14)は直流リンク(15)を介してコンバータ(11)と接続され、直流を交流に変換し、当該交流を負荷(4)に出力する。漏洩電流検出器(21)は負荷(4)から漏洩する漏洩電流(Ia)に対応する検出電流(Ib)を出力する。補償電流出力端(223)は漏洩電流(Ia)が漏洩する箇所(41)に接続され、検出電流(Ib)に応答して漏洩電流(Ia)を補償する補償電流(Ic)を出力する。スイッチ(8)は検出電流(Ib)の補償電流出力部(22)への入力の可否を設定する。

    Abstract translation: 通过输出除了漏电流不突出的那些以外的段的补偿电流,该功率转换电路由于提供补偿电流而减少损耗。 A转换器(11)输入来自AC源(3)的交流电,并将其整流并输出到DC链路(15)。 逆变器(14)通过直流链路(15)与转换器(11)连接,将直流电转换为交流电,并将该交流电输出到负载(4)。 泄漏电流检测器(21)输出与从负载(4)泄漏的泄漏电流(Ia)相对应的检测电流(Ib)。 补偿电流输出端子(223)连接到泄漏电流(Ia)泄漏的位置(41),并且响应于检测电流(Ib),输出补偿电压(Ic) IA)。 开关(8)设定检测电压(Ib)是否可以输入到补偿电流输出单元(22)。

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