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1. 发明申请

US20160377687A1 INVERTER TEST APPARATUS 审中-公开
标题翻译：逆变器测试装置
公开(公告)号：US20160377687A1
公开(公告)日：2016-12-29
申请号：US15258571
申请日：2016-09-07
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Naoto NIIMURA , Toshiaki OKA , Hiromitsu SUZUKI
IPC分类号： G01R31/42 , H02M7/487
CPC分类号： G01R31/42 , H02M5/45 , H02M7/487
摘要： An inverter test apparatus includes a DC power supply, a second inverter which is connected to a DC side of the first inverter, an inductor which is connected between an AC side of the first inverter and an AC side of the second inverter, a first controller which controls an AC voltage of the first inverter to be at a constant amplitude and a constant frequency, a current detector which detects a current that flows through the inductor, a phase command value computation module which computes a phase command value of the second inverter so as to control the current detected by the current detector, and a second controller which controls a phase of the second inverter, based on the phase command value computed.
摘要翻译：逆变器测试装置包括直流电源，连接到第一逆变器的直流侧的第二逆变器，连接在第一逆变器的交流侧和第二逆变器的交流侧的电感器，第一控制器其控制第一反相器的交流电压处于恒定振幅和恒定频率，检测流过电感器的电流的电流检测器，相位指令值计算模块，其计算第二反相器的相位指令值用于控制由电流检测器检测的电流，以及基于所计算的相位指令值来控制第二反相器的相位的第二控制器。

2. 发明申请

US20210119550A1 POWER CONVERSION DEVICE 有权
公开(公告)号：US20210119550A1
公开(公告)日：2021-04-22
申请号：US16971196
申请日：2018-03-09
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Ryoji TSURUTA , Hiromitsu SUZUKI , Toshiaki OKA , Ritaka NAKAMURA , Masashi NAKAMURA
IPC分类号： H02M5/458 , H02M7/483 , H02M7/25 , H02M7/217 , H02M7/797
摘要： A power conversion device includes a transformer, a plurality of converter cells, and a control circuit that controls semiconductor switching elements in each of the converter cells to be turned on and off. The transformer includes: a primary winding group being connected in multiple phases to an AC power supply including multiple phases; and a plurality of secondary winding groups. Each secondary winding group includes, in each of the multiple phases, secondary windings each formed of a single-phase open winding. Each converter cell converts a single-phase AC voltage between AC nodes connected to the respective secondary windings into a DC voltage by control of the semiconductor switching elements to be turned on and off, and outputs the converted DC voltage between a pair of DC nodes. The DC nodes of the plurality of converter cells are connected in series between a first DC terminal and a second DC terminal.

3. 发明申请

US20180241338A1 POWER CONVERSION APPARATUS 审中-公开
公开(公告)号：US20180241338A1
公开(公告)日：2018-08-23
申请号：US15959691
申请日：2018-04-23
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Shunsuke TOBAYASHI , Toshiaki OKA
IPC分类号： H02P29/028 , H02P27/08 , H02P29/032 , H02P29/024 , H02M1/32
CPC分类号： H02P29/028 , H02H7/127 , H02M1/32 , H02M2001/325 , H02P27/06 , H02P27/08 , H02P29/0241 , H02P29/026 , H02P29/027 , H02P29/032
摘要： A power conversion apparatus having a converter, an inverter controlled by inverter controller, and an input power source fluctuation detecting and controlling circuit is proposed. The input power source fluctuation detecting and controlling circuit includes an input power source fluctuation detector and a converter failure detector to detect overcurrent and/or overvoltage of the converter. When both of the input power source fluctuation and the converter failure are detected, the converter is gate blocked, and the inverter continues its operation, and when the DC voltage become lower than a threshold voltage during the converter is gate blocking, the input power source fluctuation detecting and controlling circuit outputs an inverter control changeover flag to the inverter controller for switching a contents of inverter control.

4. 发明申请

US20170063282A1 MOTOR DRIVING SYSTEM 审中-公开
标题翻译：电机驱动系统
公开(公告)号：US20170063282A1
公开(公告)日：2017-03-02
申请号：US15348086
申请日：2016-11-10
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Toshiaki OKA
IPC分类号： H02P29/10 , H02P27/06
CPC分类号： H02P29/10 , H02P1/166 , H02P1/26 , H02P3/18 , H02P21/0089 , H02P23/16 , H02P27/04 , H02P27/06
摘要： In a motor driving system, a motor driving system is provided which simplifies the system by ceasing ON/OFF control of a commercial driving command, and by performing commercial synchronous transfer and capture control based on a drive speed reference. A system controller performs synchronization control so as to make a drive output coincident with a phase/amplitude of a commercial AC power source when a rotation speed of a motor exceeds a drive speed reference n2, and when a prescribed requirement is satisfied, the commercial AC power source is synchronously transferred, and the motor is driven by the commercial AC power source. In addition, when the drive speed reference is set to n1, and a drive output side switch is closed, the drive output is connected to the commercial AC power source, and when a prescribed requirement is satisfied, the motor is started to be driven at a variable speed (t7), and thereby the synchronous capture is performed.
摘要翻译：在电动机驱动系统中，提供电动机驱动系统，其通过停止对商业驾驶命令的ON / OFF控制来简化系统，并且通过基于驱动速度参考进行商业同步传送和捕获控制。当电动机的转速超过驱动速度基准n2时，系统控制器执行同步控制，以使得与商用AC电源的相位/幅度一致的驱动输出，并且当满足规定的要求时，商用AC 电源同步传输，电机由商用交流电源驱动。此外，当驱动速度基准设定为n1，驱动输出侧开关闭合时，驱动输出与商用AC电源连接，当满足规定的要求时，马达开始被驱动可变速度（t7），从而执行同步捕获。

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