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1. 发明授权

US5969966A Power converting apparatus and method using a multiple three-phase PWM cycloconverter system 失效
标题翻译：使用多重三相PWM循环变频器系统的电力转换装置和方法
公开(公告)号：US5969966A
公开(公告)日：1999-10-19
申请号：US29262
申请日：1998-03-09
申请人： Toshihiro Sawa , Tsuneo Kume , Koichi Hirano
发明人： Toshihiro Sawa , Tsuneo Kume , Koichi Hirano
IPC分类号： H02M5/27 , H02P27/16 , H02M13/02 , H02M5/257 , H02M5/275
CPC分类号： H02P27/16 , H02M5/271 , H02M7/487 , Y02P80/116
摘要： A power converting apparatus and a power converting method for driving a high voltage AC motor at a variable speed. Conventional invertor systems cannot solve technical subjects such as energy conservation, resource conservation, miniaturization, efficiency promotion and voltage and current waveform distortion suppression for improvement in environment needed by the market, and cannot solve another technical subject of improvement in redundancy such that, upon failure, operation is performed with a normal part. In the present invention, a power converting apparatus of a multiple three-phase pulse width modulation cycloconverter system for driving a high voltage AC motor at a variable speed is used, and bidirectional semiconductor switches are controlled so that voltages of AC outputs to be outputted to single-phase AC terminals of three-phase/single-phase pulse width modulation cycloconverters may have a same phase in each of units but electric angles of basic wave voltage phases may be different by 120 degrees from each other among the three units to drive a high voltage AC motor. If one of the cycloconverters fails, then the single-phase AC terminals of the failed cycloconverter are short-circuited and three sets of switches each consisting of two bidirectional semiconductor switches connected to three-phase AC terminals of the cycloconverters of the other two units in the same group as the failed cycloconverter are successively rendered conducting one by one set at equal time intervals to short-circuit the three sets of the bidirectional semiconductor switches to drive the high voltage AC motor at a variable speed.
摘要翻译： PCT No.PCT / JP96 / 02495 371日期1998年3月9日 102（e）1998年3月9日PCT PCT 1996年9月4日PCT公布。公开号WO97 / 09773 日期1997年3月13日电变换装置和用于以可变速度驱动高压AC电动机的电力转换方法。传统的逆变器系统不能解决诸如节能，资源节约，小型化，提高效率以及电压和电流波形失真抑制等技术课题，以改善市场所需的环境，并且不能解决另一个冗余性提高的技术课题，使得在故障时，用正常部分进行操作。在本发明中，使用用于以可变速度驱动高压AC电动机的多重三相脉宽调制循环变频器系统的电力转换装置，并且控制双向半导体开关，使得输出的AC输出的电压被输出到三相/单相脉宽调制循环变换器的单相交流端子可以在每个单元中具有相同的相位，但是三个单元中的基波电压相位的电角度可以彼此相差120度以驱动高压交流电机。如果其中一个循环变频器发生故障，则故障循环变频器的单相交流端子短路，每组由两个双向半导体开关组成的三组开关连接到其他两个单元的循环变频器的三相交流端子与故障循环换流器相同的组以相等的时间间隔逐个连续地进行导通，以使三组双向半导体开关短路，以可变速度驱动高压AC电动机。

2. 发明授权

US06847185B2 Apparatus for switching windings of AC three-phase motor 失效
标题翻译：交流三相电机绕组开关装置
公开(公告)号：US06847185B2
公开(公告)日：2005-01-25
申请号：US10491410
申请日：2002-03-22
申请人： Tsuneo Kume , Swamy Mahesh
发明人： Tsuneo Kume , Swamy Mahesh
IPC分类号： H02P27/06 , H02P23/06 , H02P7/40
CPC分类号： H02P25/188 , H02P23/06
摘要： It is an object to provide a winding switching device of a three-phase AC motor having a small size at a low cost in which a time required for switching a winding is shortened and the number of semiconductor switch units is decreased as much as possible. In a winding switching device of a three-phase AC motor including an AC motor in which a winding having each phase is formed by a plurality of windings and a connecting terminal connecting the windings to each other and both terminals of the winding having the phase are provided on an outside of a motor, winding switching means for properly switching the connecting terminal, and a variable frequency power source for supplying a variable voltage having a variable frequency to the AC motor, the winding switching means is constituted by a plurality of three-phase rectifying means connecting one of ends of the winding having the phase to the variable frequency power source and connecting the other end and the connecting terminal to an input terminal on an AC side of the three-phase rectifying means for each phase, and a semiconductor switch provided to open and close both ends on a DC output side of the three-phase rectifying means.
摘要翻译：本发明的目的是提供一种具有小成本的三相交流电动机的绕组开关装置，其成本较低，其中绕组切换所需的时间缩短，并且半导体开关单元的数量尽可能地减少。在包括交流电动机的三相交流电动机的绕组开关装置中，其中每个相的绕组由多个绕组形成，并且连接端子将绕组彼此连接，并且具有相位的绕组的两个端子是设置在电动机的外部，用于适当地切换连接端子的绕组开关装置和用于向AC电动机提供具有可变频率的可变电压的可变频率电源，所述绕组切换装置由多个三相将具有相位的绕组的一端连接到可变频率电源并将另一端和连接端连接到用于每相的三相整流装置的AC侧的输入端的三相整流装置，以及半导体开关，用于在三相整流装置的直流输出侧开闭两端。

3. 发明授权

US6028405A Variable frequency drive noise attenuation circuit 失效
标题翻译：变频驱动噪声衰减电路
公开(公告)号：US6028405A
公开(公告)日：2000-02-22
申请号：US45333
申请日：1998-03-02
申请人： Tsuneo Kume , Mahesh M. Swamy
发明人： Tsuneo Kume , Mahesh M. Swamy
IPC分类号： H02M1/12 , H02K23/00
CPC分类号： H02M1/126 , H02M2001/123
摘要： A noise attenuation circuit is used in a motor drive system. The motor drive system includes a variable frequency drive having a pulse width modulated inverter converting DC power from a DC bus to three-phase power output on three-phase conductors for driving a motor. The noise attenuation circuit comprises a common-mode transformer including a common mode choke having a core, with first, second and third choke windings on the core, each connected in series with one of the three phase conductors, and a fourth winding on the core. A three-phase iron core transformer creates a neutral point representing common mode voltage. The iron core transformer has three primary windings connected in a "wye" configuration to the three phase conductors. The fourth winding has a start connected to the neutral point and an end operatively connected to the DC bus to force a current, dependent on the voltage of the neutral point relative to the DC bus, in the fourth winding of the common mode transformer in an opposite direction to cancel main common mode current.
摘要翻译：在电动机驱动系统中使用噪声衰减电路。电动机驱动系统包括具有脉冲宽度调制逆变器的变频驱动器，其将来自DC总线的DC电力转换为用于驱动电动机的三相导体上的三相电力输出。噪声衰减电路包括共模变压器，其包括具有芯的共模扼流器，其中芯上的第一，第二和第三扼流圈各自与三相导体中的一个串联，并且在芯上连接第四绕组。三相铁芯变压器产生一个表示共模电压的中性点。铁芯变压器有三个初级绕组，以“Y”形结构连接到三相导线。第四绕组具有连接到中性点的开始端和可操作地连接到DC总线的端部，以在共模变压器的第四绕组中依赖于相对于DC总线的中性点的电压来强制电流相反方向取消主共模电流。

4. 发明授权

US5835371A Bridge type power converter 失效
标题翻译：桥式电源转换器
公开(公告)号：US5835371A
公开(公告)日：1998-11-10
申请号：US793346
申请日：1997-07-03
申请人： Tsuneo Kume , Toshihiro Sawa , Sumitoshi Sonoda , Kenji Yamada
发明人： Tsuneo Kume , Toshihiro Sawa , Sumitoshi Sonoda , Kenji Yamada
IPC分类号： H02M7/48 , H02M7/523 , H02M7/5387 , H02P27/06 , H03K17/0814 , H02M3/24
CPC分类号： H02M1/34 , H02M7/5233 , H02M7/538 , H02M7/5387 , H03K17/08148 , H02M2001/346 , Y02B70/1491
摘要： A bridge-type power converter has, in each phase, a inductor (L.sub.1) connected between a connection point of said two switching elements (Q.sub.1, Q.sub.2) and an output terminal; capacitors (C.sub.1, C.sub.2) connected between the output terminal and a positive or negative side of a d.c. bus for changing an output voltage along a curve determined by a phenomenon of resonance with the reactor (L.sub.1) when the semiconductors switching elements (Q.sub.1, Q.sub.2) operate, causing abrupt changes of a voltage at the connection point; diodes (D.sub.3, D.sub.4) for changing a current path at a time when the resonance goes approximately one quarter of period to thereby stop the resonance; and constant voltage diodes (ZD.sub.1, ZD.sub.2) for absorbing the energy stored in the inductor (L.sub.1) during the resonance.
摘要翻译： PCT No.PCT / JP96 / 01719 Sec。 371日期1997年7月3日 102（e）1997年7月3日PCT PCT 1996年6月21日PCT公布。出版物WO97 / 01214 日期1997年1月9日桥式功率转换器在每相中具有连接在所述两个开关元件（Q1，Q2）的连接点和输出端子之间的电感器（L1）; 电容器（C1，C2）连接在输出端子与直流或正负极之间。总线，用于当半导体开关元件（Q1，Q2）工作时，沿着与电抗器（L1）共振现象确定的曲线改变输出电压，引起连接点处的电压突然变化; 二极管（D3，D4），用于在谐振进行约四分之一的周期时改变电流通路，从而停止谐振; 和用于吸收在谐振期间存储在电感器（L1）中的能量的恒压二极管（ZD1，ZD2）。

5. 发明授权

US06208098B1 Variable frequency drive noise attenuation circuit 有权
标题翻译：变频驱动噪声衰减电路
公开(公告)号：US06208098B1
公开(公告)日：2001-03-27
申请号：US09460124
申请日：1999-12-13
申请人： Tsuneo Kume , Mahesh M. Swamy
发明人： Tsuneo Kume , Mahesh M. Swamy
IPC分类号： H02K2300
CPC分类号： H02M1/40 , H02M1/126 , H02M2001/123
摘要： A noise attenuation circuit is disclosed for use in a motor drive system. The motor drive system includes a pulse width modulated inverter providing three phase power output on three phase conductors for driving a motor. The noise attenuation circuit includes a common mode transformer including a common mode choke having a core, with first, second and third choke windings on the core, each connected in series with one of the three phase conductors, and a fourth winding on the core. A three phase iron core transformer creates a neutral point representing common mode voltage. The iron core transformer has three primary windings connected in a wye configuration. A capacitor circuit is connected between the iron core transformer and the three phase conductors to prevent saturation of the iron core transformer during pulsed DC operating conditions. The fourth winding is connected between the neutral point and the DC bus and develops a common mode voltage that is equal and opposite to that existing in the system. This common mode voltage, when impressed across the three choke windings, effectively cancels the systems' common mode voltage thereby reducing the common mode current significantly.
摘要翻译：公开了一种用于电动机驱动系统的噪声衰减电路。电动机驱动系统包括一个脉宽调制逆变器，在三相导线上提供用于驱动电动机的三相电力输出。噪声衰减电路包括共模变压器，其包括具有芯的共模扼流圈，其中在芯上的第一，第二和第三扼流圈绕组与三个相导体中的一个串联，并且在芯上连接第四绕组。三相铁芯变压器产生一个表示共模电压的中性点。铁芯变压器具有三个初级绕组，以三角形配置连接。在铁芯变压器和三相导体之间连接一个电容电路，以防止铁心变压器在脉冲直流工况下饱和。第四绕组连接在中性点和直流总线之间，并产生与系统中存在的相同和相反的共模电压。这种共模电压在三个扼流绕组上施加电压时，有效地抵消了系统的共模电压，从而显着降低了共模电流。

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