公开(公告)号：US20160072422A1

公开(公告)日：2016-03-10

申请号：US14841864

申请日：2015-09-01

Applicant: FANUC CORPORATION

Inventor： Wataru Kuroki

IPC: H02P27/04

CPC classification number: H02M1/36 ,  H02J1/00 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/219 ,  H02P2201/03

Abstract: An electric motor drive apparatus includes: an AC/DC converter converting AC into DC by the switching of multiple power devices; a control circuit performing PWM switching control of the multiple power devices; a current detecting circuit that detects input current from the AC power supply to the AC/DC converter; an electromagnetic contactor connecting or cutting off power from the AC power supply to the AC converter; and a DC link unit including a smoothing capacitor for smoothing DC voltage, and is constructed such that the control circuit determines that the electromagnetic contactor has been welded when input current is detected in a condition where with the DC link unit having been charged, the electromagnetic contactor is turned off to cut off the power from the AC power supply to the AC/DC converter and the multiple power devices are controlled by PWM switching in accordance with the switching commands.

Abstract translation: 电动机驱动装置包括：通过多个功率器件的切换将AC转换成DC的AC / DC转换器; 执行所述多个功率器件的PWM开关控制的控制电路; 检测从AC电源向AC / DC转换器的输入电流的电流检测电路; 连接或切断来自AC电源到AC转换器的电力的电磁接触器; 以及包括用于平滑直流电压的平滑电容器的直流链路单元，并且被构造成使得当控制电路在具有被充电的直流链路单元的状态下检测到输入电流时，确定电磁接触器已被焊接，电磁 关闭接触器，以切断AC / DC转换器的交流电源的电源，并根据切换命令通过PWM切换控制多个功率器件。

公开(公告)号：US09130500B2

公开(公告)日：2015-09-08

申请号：US13981473

申请日：2011-03-28

Applicant: Manabu Ohashi ,  Kazuya Nakamura

Inventor： Manabu Ohashi ,  Kazuya Nakamura

IPC: H02P3/18 ,  H02P27/06 ,  H02P3/22 ,  H02M1/32

CPC classification number: H02P27/06 ,  H02M1/32 ,  H02P3/22 ,  H02P2201/03 ,  H02P2201/07 ,  Y02P80/116

Abstract: A circuit disconnection element that can open or short-circuit between a power storage element and a step-up/step-down bidirectional chopper circuit is provided in a power storage system, thereby preventing a self-discharge state in a process of charging. Furthermore, at the time of occurrence of an abnormality, the power storage element is detached from other devices including the step-up/step-down bidirectional chopper circuit. Accordingly, an energy loss of the power storage element at the time of power regeneration can be reduced to improve the energy use efficiency. Further, breakage influences such that the power storage element causes breakage in other devices at the time of occurrence of the abnormality can be prevented, thereby enabling to obtain an AC motor drive device having mounted therein a highly safe power storage system.

Abstract translation: 在蓄电系统中设置有能够在蓄电元件与升压/降压双向斩波电路之间断开或短路的电路断路元件，从而防止充电过程中的自放电状态。 此外，在异常发生时，蓄电元件与包括升压/降压双向斩波电路的其他装置分离。 因此，可以降低功率再生时的蓄电元件的能量损失，提高能量利用效率。 此外，可以防止在异常发生时蓄电元件导致其他装置中的断线的破损，从而能够获得安装有高度安全的蓄电系统的交流电动机驱动装置。

公开(公告)号：US20130285582A1

公开(公告)日：2013-10-31

申请号：US13978813

申请日：2011-03-31

Applicant: Manabu Ohashi ,  Kazuya Nakamura

Inventor： Manabu Ohashi ,  Kazuya Nakamura

IPC: H02P3/18

CPC classification number: H02P3/18 ,  H02M3/1582 ,  H02P27/06 ,  H02P2201/03 ,  H02P2201/07 ,  Y02P80/116

Abstract: A circuit switching element is provided that switches a step-up/step-down bidirectional chopper circuit, arranged between a DC bus and a power storage element, to a first chopper circuit or to a second chopper circuit, whose step-up and step-down characteristics are in a complementary relation. The first and second chopper circuits are used together at a time of charge and discharge. Accordingly, an AC motor drive device having mounted therein a power storage system is obtained, in which the power storage system can perform charge and discharge to and from the power storage element, regardless of a bus voltage and can increase energy use efficiency.

Abstract translation: 提供了一种电路开关元件，其将设置在DC总线和电力存储元件之间的升压/降压双向斩波电路切换到第一斩波电路或第二斩波电路，该第二斩波电路的升压和 下降特征是互补关系的。 第一和第二斩波电路在充放电时一起使用。 因此，获得了其中安装有蓄电系统的交流电动机驱动装置，其中蓄电系统可以与蓄电元件进行充电和放电，而不管总线电压如何，并且可以提高能量使用效率。

公开(公告)号：US20110247900A1

公开(公告)日：2011-10-13

申请号：US13128798

申请日：2008-11-21

Applicant: Vladimir Blasko ,  Ismail Agirman ,  Stella M. Oggianu ,  Robert K. Thornton

Inventor： Vladimir Blasko ,  Ismail Agirman ,  Stella M. Oggianu ,  Robert K. Thornton

IPC: B66B1/20 ,  H02J1/12 ,  H02P3/14

CPC classification number: H02P3/14 ,  B66B1/302 ,  B66B1/308 ,  H02P27/00 ,  H02P27/06 ,  H02P2201/03 ,  H02P2201/07

Abstract: A three-phase regenerative drive (20) is operated based upon power from a single-phase AC source (12) and power from a DC source (14). The single-phase AC input power and the DC input power are converted to DC voltage on a DC bus (24) by a three-phase converter (22). DC power is provided from the DC bus (24) to a three-phase inverter having outputs connected to a motor (34). A controller (44) controls operation of the three-phase converter (22) based upon contribution factors of the AC and DC sources (12, 14) during motoring and regeneration. The controller (44) also controls an AC component of current from the DC source to reduce ripple current on the DC bus (24).

Abstract translation: 基于来自单相AC电源（12）的功率和来自DC源（14）的功率来操作三相再生驱动器（20）。 单相交流输入功率和直流输入功率通过三相转换器（22）转换为直流母线（24）上的直流电压。 从DC总线（24）向具有与马达（34）连接的输出的三相逆变器提供直流电力。 控制器（44）在驾驶和再生期间基于AC和DC源（12,14）的贡献因子来控制三相转换器（22）的操作。 控制器（44）还控制来自DC源的电流的AC分量，以减小DC总线（24）上的纹波电流。

公开(公告)号：US20110219816A1

公开(公告)日：2011-09-15

申请号：US13128347

申请日：2009-12-01

Applicant: Hidehisa Tanaka ,  Yoshinori Takeoka

Inventor： Hidehisa Tanaka ,  Yoshinori Takeoka

IPC: F25B1/00 ,  H02P6/14

CPC classification number: H02P27/06 ,  H02P6/15 ,  H02P6/18 ,  H02P6/181 ,  H02P23/0027 ,  H02P23/009 ,  H02P2201/03 ,  H02P2205/01

Abstract: Phase correction unit (25) for outputting a commutation signal for switching a winding that allows a current to flow to brushless DC motor (4) and drive unit (16) for outputting a drive signal indicating supplying timing of electric power supplied to brushless DC motor (4) by inverter (3) based on the commutation signal output from phase correction unit (25) are provided so as to maintain a predetermined relation between a phase of a current flowing to a predetermined winding of brushless DC motor (4) and a phase of a voltage. Since brushless DC motor (4) is driven by a signal for holding the predetermined relation between the phase of the current and the phase of the voltage, the stability of drive under high-speed and high-load conditions is enhanced and a drive range is extended.

Abstract translation: 相位校正单元（25），用于输出用于切换允许电流流向无刷直流电动机（4）的绕组的换向信号;以及驱动单元（16），用于输出指示供给无刷直流电动机的电力供给时序的驱动信号 提供基于从相位校正单元（25）输出的换向信号的逆变器（3），以保持流向无刷直流电动机（4）的预定绕组的电流的相位与 电压相位。 由于无刷直流电动机（4）由用于保持电流相位与电压相位之间的预定关系的信号驱动，所以在高速和高负载条件下驱动的稳定性提高，驱动范围为 延长

公开(公告)号：US07944087B2

公开(公告)日：2011-05-17

申请号：US12193247

申请日：2008-08-18

Applicant: Markku Talja

Inventor： Markku Talja

IPC: H02J5/00

CPC classification number: H02M5/4505 ,  H02M1/40 ,  H02P27/047 ,  H02P27/06 ,  H02P2201/03 ,  Y10T307/422

Abstract: A method and an apparatus for damping voltage oscillation of a voltage intermediate circuit of a frequency converter, the frequency converter comprising a half controlled rectifier bridge coupled to a supply network. The method comprises determining magnitude (Uc) of voltage of the voltage intermediate circuit, determining magnitude (Uin) of rectified voltage of the supply network, forming a derivative of a difference (Uin−Uc) between the rectified voltage of the supply network and the voltage of the voltage intermediate circuit, delaying firing of controllable components of the rectifier bridge on the basis of the formed derivative.

Abstract translation: 一种用于抑制变频器的电压中间电路的电压振荡的方法和装置，所述变频器包括耦合到供电网络的半控整流桥。 该方法包括确定电压中间电路的电压的大小（Uc），确定供电网络的整流电压的幅度（Uin），形成供电网络的整流电压之间的差值（Uin-Uc） 电压中间电路的电压，基于形成的导数延迟整流桥可控元件的点火。

公开(公告)号：US20100145546A1

公开(公告)日：2010-06-10

申请号：US12593528

申请日：2008-01-26

Applicant: Jae Yoo Yoo ,  Chang Oh Kim

Inventor： Jae Yoo Yoo ,  Chang Oh Kim

IPC: G06F1/28

CPC classification number: F25B49/025 ,  F25B2600/021 ,  F25B2700/15 ,  H02M1/10 ,  H02P27/18 ,  H02P2201/03 ,  Y02B30/741

Abstract: A refrigerator and a method of operating the same are disclosed. In the refrigerator and the method of operating the same, a voltage of an electric power input is measured and rectified through the half wave rectification or the full wave rectification in correspondence with the measured voltage, so that the refrigerator can be used without a voltage converting device when a voltage of the input power is changed. Therefore, the change or the modification of the circuit is not needed in order to use the refrigerator in other regions. Since components are compatible and utility of the components is improved, manufacturing costs can be reduced.

Abstract translation: 公开了一种冰箱及其操作方法。 在冰箱及其操作方法中，电压输入的电压通过与所测量的电压对应的半波整流或全波整流进行测量和整流，从而可以在没有电压转换的情况下使用冰箱 当输入功率的电压变化时， 因此，为了在其他区域使用冰箱，不需要改变或修改电路。 由于部件兼容并且部件的实用性得到改善，所以可以降低制造成本。

公开(公告)号：US20080174258A1

公开(公告)日：2008-07-24

申请号：US11932280

申请日：2007-10-31

Applicant: Harold R. SCHNETZKA ,  Shreesha ADIGA MANOOR

Inventor： Harold R. SCHNETZKA ,  Shreesha ADIGA MANOOR

IPC: H02P27/04

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M2001/123 ,  H02P27/08 ,  H02P29/50 ,  H02P2201/03 ,  H03L7/093 ,  H03L7/095 ,  H05K7/20936 ,  Y02B30/741

Abstract: Systems and methods for synchronous operation of variable speed drives having active converters include extending the synchronous operation of an active converter to the AC mains voltage during complete line dropout. A phase angle control circuit includes a squaring amplifier, a first phase-lock loop circuit associated and a second phase-lock loop circuit. The squaring amplifier receives the AC power source and outputs a rectangular output signal to a pair of phase lock loop (PLL) circuits. The first PLL circuit with a first lag-lead filter is configured with a high cutoff frequency to provide the converter stage with a phase angle parameter; and the second phase-lock loop circuit including a second lag-lead filter configured to have a low cutoff frequency to provide the lag-lead filter the capability of storing the phase angle of the mains voltage during mains interruption.

Abstract translation: 具有有源转换器的变速驱动器的同步操作的系统和方法包括在完整的线路断开期间将有源转换器的同步操作扩展到AC电源电压。 相位角控制电路包括平方放大器，相关的第一锁相环电路和第二锁相环电路。 平方放大器接收交流电源，并向一对锁相环（PLL）电路输出矩形输出信号。 具有第一滞后引线滤波器的第一PLL电路配置有高截止频率，以向转换器级提供相位角参数; 并且所述第二锁相环电路包括被配置为具有低截止频率的第二滞后引线滤波器，以提供所述滞后引线滤波器在电源中断期间存储所述电源电压的相位角的能力。

公开(公告)号：US20080174257A1

公开(公告)日：2008-07-24

申请号：US11932054

申请日：2007-10-31

Applicant: Harold R. SCHNETZKA ,  Ivan JADRIC

Inventor： Harold R. SCHNETZKA ,  Ivan JADRIC

IPC: H02P23/00 ,  H02P25/16

CPC classification number: H02M1/12 ,  F25B49/025 ,  F25B2600/021 ,  H02M2001/123 ,  H02P27/08 ,  H02P29/50 ,  H02P2201/03 ,  H03L7/093 ,  H03L7/095 ,  H05K7/20936 ,  Y02B30/741

Abstract: Systems and methods for operating a variable speed drive to receive an input AC power at a fixed AC input voltage and frequency and provide an output AC power at a variable voltage and variable frequency. The variable speed drive includes a converter stage to convert the input AC voltage to a boosted DC voltage, a DC link connected to the converter stage to filter and store the boosted DC voltage from the converter stage; and an inverter stage to convert the boosted DC voltage into AC power with variable voltage and the variable frequency. An integral bypass contactor is connected in parallel with the VSD between the AC power source and the AC output power. The integral bypass contactor is arranged to bypass the VSD when the VSD output frequency and voltage are approximately equal with the AC input voltage and frequency.

Abstract translation: 用于操作变速驱动器以以固定的AC输入电压和频率接收输入AC电力的系统和方法，并以可变电压和可变频率提供输出AC电力。 变速驱动器包括转换器级，用于将输入交流电压转换为升压直流电压;连接到转换器级的直流链路，用于对来自转换器级的升压直流电压进行滤波和存储; 以及将升压的直流电压转换为具有可变电压和可变频率的交流电的逆变器级。 一体式旁路接触器与交流电源和交流输出电源之间的VSD并联连接。 当VSD输出频率和电压与交流输入电压和频率近似相等时，集成旁路接触器被布置为绕过VSD。

公开(公告)号：US07164253B2

公开(公告)日：2007-01-16

申请号：US10484385

申请日：2002-07-31

Applicant: Eiji Sato ,  Sumikazu Shamoto ,  Masayuki Komatsu ,  Ryoji Oki ,  Makoto Nakamura

Inventor： Eiji Sato ,  Sumikazu Shamoto ,  Masayuki Komatsu ,  Ryoji Oki ,  Makoto Nakamura

IPC: H02P27/04

CPC classification number: H02M7/48 ,  B60L11/1803 ,  H02M2001/007 ,  H02P27/06 ,  H02P27/08 ,  H02P27/14 ,  H02P2201/03 ,  H02P2201/07 ,  Y02T10/642 ,  Y02T10/7005

Abstract: On end of a reactor (L1) is connected to a positive electrode of a battery (B1) and the other end is connected to a power line via a transistor (Q1) and to the ground via a transistor (Q2). By PWM control of the transistors (Q1, Q2), an arbitrary increased voltage is obtained in the power line. It is possible to obtain an optimal inverter input voltage (power line voltage) according to the motor drive state, thereby increasing efficiency. Thus, it is possible to optimize the inverter input voltage according to the motor drive condition.

Abstract translation: 在电抗器（L1）的一端连接到电池（B 1）的正电极，另一端通过晶体管（Q1）连接到电力线并通过晶体管（Q 2）连接到地， 。 通过晶体管（Q 1，Q 2）的PWM控制，在电力线中获得任意增加的电压。 可以根据电动机驱动状态获得最佳的逆变器输入电压（电力线电压），从而提高效率。 因此，可以根据电动机驱动条件来优化逆变器输入电压。