公开(公告)号：EP2804309A4

公开(公告)日：2016-05-04

申请号：EP12865086

申请日：2012-12-25

Applicant: TOSHIBA MITSUBISHI ELEC INC

Inventor： ODA KENJI ,  FUKUMA KATSUHIKO

IPC: H02M7/12 ,  H02M7/48 ,  H02M7/487

CPC classification number: H02P27/14 ,  H02M5/4585 ,  H02M7/487 ,  H02P2201/01

Abstract: To provide a three-level power conversion apparatus which can suppress fluctuation in a neutral point voltage even when operated as a reactive power regulator. The three-level power conversion apparatus is composed of first and second three-level converters 2A, 2B connected to an AC power supply system, positive side and negative side DC capacitors 3P, 3N, a three-level inverter 4 to drive an AC motor 5, and converter control means 10 for controlling the three-level converters 2A, 2B. The converter control means 10 has first and second reactive current control means 15A, 15B for controlling so that reactive portions of input currents of the three-level converters 2A, 2B become a prescribed reactive current reference, respectively, first and second neutral point voltage fluctuation suppressing means for controlling PWM control means 17A, 17B, respectively, so as to make a difference between voltages applied to DC capacitors 3P, 3N to be zero, and active current control means for supplying a prescribed circulating active current from the three-level converter 2A to the three-level converter 2B.

公开(公告)号：US20240186930A1

公开(公告)日：2024-06-06

申请号：US18062173

申请日：2022-12-06

Applicant: Trane International Inc.

Inventor： Benjamin J. Sykora

IPC: H02P23/04 ,  H02P25/18 ,  H02P27/06

CPC classification number: H02P23/04 ,  H02P25/184 ,  H02P27/06 ,  H02P2201/01

Abstract: According to an embodiment of the present disclosure, an apparatus includes a transformer having a set of input terminals, a first set of output terminals, and a second set of output terminals. First and second rectifiers are coupled to the first and second sets of output terminals, respectively. The transformer is configured to transform three phase alternating current (AC) provided to the set of input terminals into first and second three phase AC outputs at the first and second sets of output terminals, respectively. The first three phase AC output is phase shifted from the second three phase AC output.

公开(公告)号：US11984814B2

公开(公告)日：2024-05-14

申请号：US17033442

申请日：2020-09-25

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Lixiang Wei ,  Peizhong Yi ,  Robert W. Reese ,  Brian P. Brown ,  Jatinkumar Patel

IPC: H02P27/08 ,  H02M1/08 ,  H02M7/217 ,  H02P6/12 ,  H02P27/06 ,  H02M1/00

CPC classification number: H02M7/2173 ,  H02M1/083 ,  H02P27/06 ,  H02M1/0058 ,  H02P2201/01

Abstract: For open loop phase pre-charge, an apparatus includes a Switching Mode Power Supply (SMPS) charging diode and a charge generator. The SMPS charging diode pre-charges an SMPS to a regulation set point from at least one phase of an Alternating Current (AC) voltage. The charge generator is powered by the pre-charged SMPS. In response to detecting the regulation set point iteratively, the charge generator detects a specified phase angle of the AC voltage. In response to the specified phase angle, the charge generator iteratively generates a charging voltage during positive voltage interval that charges a Direct Current (DC) bus capacitor to a target DC bus voltage within a charging time interval. At least a portion of the charge generator comprises one or more of hardware and executable code, the executable code stored on one or more computer readable storage media.

公开(公告)号：US20150002066A1

公开(公告)日：2015-01-01

申请号：US14371599

申请日：2012-12-25

Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

Inventor： Kenji Oda ,  Katsuhiko Fukuma

IPC: H02P27/14

CPC classification number: H02P27/14 ,  H02M5/4585 ,  H02M7/487 ,  H02P2201/01

Abstract: To provide a three-level power conversion apparatus which can suppress fluctuation in a neutral point voltage even when operated as a reactive power regulator. The three-level power conversion apparatus is composed of first and second three-level converters 2A, 2B connected to an AC power supply system, positive side and negative side DC capacitors 3P, 3N, a three-level inverter 4 to drive an AC motor 5, and converter control means 10 for controlling the three-level converters 2A, 2B. The converter control means 10 has first and second reactive current control means 15A, 15B for controlling so that reactive portions of input currents of the three-level converters 2A, 2B become a prescribed reactive current reference, respectively, first and second neutral point voltage fluctuation suppressing means for controlling PWM control means 17A, 17B, respectively, so as to make a difference between voltages applied to DC capacitors 3P, 3N to be zero, and active current control means for supplying a prescribed circulating active current from the three-level converter 2A to the three-level converter 2B.

Abstract translation: 提供即使作为无功功率调节器动作也能够抑制中性点电压的波动的三电平变换装置。 三电平电力转换装置由连接于交流电源系统，正极侧和负极侧直流电容器3P，3N的第一和第二三电平转换器2A，2B，驱动交流电动机的三电平逆变器4 以及用于控制三电平转换器2A，2B的转换器控制装置10。 转换器控制装置10具有第一和第二无功电流控制装置15A，15B，用于控制使得三电平转换器2A，2B的输入电流的无功部分分别变为规定的无功电流基准，第一和第二中性点电压波动 用于分别控制PWM控制装置17A，17B以使施加到DC电容器3P，3N的电压之间的差为零的抑制装置;以及用于从三电平转换器提供规定的循环有功电流的有功电流控制装置 2A到三电平转换器2B。

公开(公告)号：WO2010046962A1

公开(公告)日：2010-04-29

申请号：PCT/JP2008/068991

申请日：2008-10-20

Applicant: 株式会社MERSTech ,  志賀 雅人 ,  北原 忠幸 ,  神子 諭 ,  小島 直人 ,  福田 志郎

Inventor： 志賀 雅人 ,  北原 忠幸 ,  神子 諭 ,  小島 直人 ,  福田 志郎

IPC: H02M7/06 ,  H02P9/04

CPC classification number: B60L11/123 ,  B60L2200/26 ,  H02P2201/01 ,  H02P2201/03 ,  Y02T10/6217 ,  Y02T10/642 ,  Y02T10/7077

Abstract: 　原動機システム１００は、ディーゼルエンジン等の熱機関１１０、発電機１２０、交流電力を整流する整流器１３０、整流器１３０で生成された直流電力を平滑する平滑コンデンサ１４０、インバータ１６０、及び電動機１７０で構成されるシステムであって、発電機１２０、整流器１３０の間に電源電力調整スイッチである磁気エネルギー回生スイッチ（ＭＥＲＳ）３０を接続し、更に制御部４０は、磁気エネルギー回生スイッチ（ＭＥＲＳ）３０のゲート位相角αを直流電力の電圧に応じて変化させ、電源電力調整スイッチの出力電圧の大きさと電流の位相を変化させることにより、発電機に含まれる誘導成分による交流電力の電圧低下を補償すると共に、直流電力の電圧を所定値に調整する。

Abstract translation: 原动机系统（100）包括诸如柴油发动机等的热机（110）; 发电机（120）; 整流器（130），用于整流交流电; 平滑电容器（140），用于平滑由整流器（130）产生的直流电力; 逆变器（160）; 和电动机（170）。 在发电机（120）和整流器（130）之间，连接有用作电源功率调节开关的磁能再生开关（MERS）（30）。 此外，控制部（40）根据直流电力的电压来改变磁能再生开关（MERS）（30）的门相位角α，并且改变电源功率调整的输出电压的大小 开关及其电流的相位，从而补偿由发电机中包括的感应元件引起的交流电力的电压降低，并进一步将直流电的电压调整到预定值。

公开(公告)号：EP2940824A1

公开(公告)日：2015-11-04

申请号：EP14275095.9

申请日：2014-04-29

Applicant: ALSTOM Technology Ltd

Inventor： Fintzos, Georgios ,  Whitehouse, Robert Stephen ,  Barker, Carl David

IPC: H02J3/38 ,  H02M5/458 ,  H02M7/757 ,  H02P9/10

CPC classification number: H02J5/00 ,  H02J3/382 ,  H02J3/386 ,  H02J2003/365 ,  H02M5/40 ,  H02M7/02 ,  H02P9/102 ,  H02P2101/15 ,  H02P2201/01 ,  H02P2201/03 ,  Y02E10/763

Abstract: A wind farm side voltage source converter (32; 94) comprises a DC terminal (40) for connection to a DC transmission link (38), an AC terminal (42) for connection to a wind farm (44) that includes at least one wind turbine (46), and a main controller (10; 20; 96). The main controller (10; 20; 96) is configured to modify an active power demand (P demand ) of the voltage source converter (32; 94) which is received from a higher level controller by introducing an artificial inertia factor and/or in response to a measured DC voltage (V dc_msr ) at the DC terminal (40).

Abstract translation: 风力发电场侧电压源转换器（32; 94）包括用于连接到DC传输链路（38）的DC端子（40），用于连接到风力发电场（44）的AC端子（42），其包括至少一个 风力涡轮机（46）和主控制器（10; 20; 96）。 主控制器（10; 20; 96）被配置为通过引入人造惯性因子和/或在主控制器（10; 20; 96）中修改从较高级控制器接收的电压源转换器（32; 94）的有功功率需求（P需求） 对直流端子（40）处的测量直流电压（V dc_msr）的响应。

公开(公告)号：EP2587656B1

公开(公告)日：2014-06-25

申请号：EP12190456.9

申请日：2012-10-29

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Kopiness, Jeremiah ,  Sladky, Raymond G. ,  Ahmed, Ahmed S. Mohamed Sayed

IPC: H02M7/219 ,  H02P1/26 ,  H02P27/06 ,  H03K17/16 ,  H02M1/36

CPC classification number: H03K17/164 ,  H02M1/36 ,  H02M5/4585 ,  H02P1/26 ,  H02P2201/01 ,  H03K17/168

公开(公告)号：EP2804309A1

公开(公告)日：2014-11-19

申请号：EP12865086.8

申请日：2012-12-25

Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation

Inventor： ODA, Kenji ,  FUKUMA, Katsuhiko

IPC: H02M7/12 ,  H02M7/48 ,  H02M7/487

CPC classification number: H02P27/14 ,  H02M5/4585 ,  H02M7/487 ,  H02P2201/01

Abstract: To provide a three-level power conversion apparatus which can suppress fluctuation in a neutral point voltage even when operated as a reactive power regulator. The three-level power conversion apparatus is composed of first and second three-level converters 2A, 2B connected to an AC power supply system, positive side and negative side DC capacitors 3P, 3N, a three-level inverter 4 to drive an AC motor 5, and converter control means 10 for controlling the three-level converters 2A, 2B. The converter control means 10 has first and second reactive current control means 15A, 15B for controlling so that reactive portions of input currents of the three-level converters 2A, 2B become a prescribed reactive current reference, respectively, first and second neutral point voltage fluctuation suppressing means for controlling PWM control means 17A, 17B, respectively, so as to make a difference between voltages applied to DC capacitors 3P, 3N to be zero, and active current control means for supplying a prescribed circulating active current from the three-level converter 2A to the three-level converter 2B.

Abstract translation: 提供即使作为无功功率调节器动作也能够抑制中性点电压的波动的三电平变换装置。 三电平转换装置由连接于交流电源系统，正极侧和负极侧直流电容器3P，3N的第一和第二三电平转换器2A，2B，驱动交流电动机的三电平逆变器4 以及用于控制三电平转换器2A，2B的转换器控制装置10。 转换器控制装置10具有第一和第二无功电流控制装置15A，15B，用于控制使得三电平转换器2A，2B的输入电流的无功部分分别变为规定的无功电流基准，第一和第二中性点电压波动 用于分别控制PWM控制装置17A，17B以使施加到直流电容器3P，3N的电压之间的差为零的抑制装置;以及用于从三电平转换器提供规定的循环有功电流的有功电流控制装置 2A到三电平转换器2B。

公开(公告)号：EP2587656A1

公开(公告)日：2013-05-01

申请号：EP12190456.9

申请日：2012-10-29

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Kopiness, Jeremiah ,  Sladky, Raymond G. ,  Ahmed, Ahmed S. Mohamed Sayed

IPC: H02M7/219 ,  H02P1/26 ,  H02P27/06 ,  H03K17/16 ,  H02M1/36

CPC classification number: H03K17/164 ,  H02M1/36 ,  H02M5/4585 ,  H02P1/26 ,  H02P2201/01 ,  H03K17/168

Abstract: Integrated AC regenerative motor drives and operating methods are presented in which a precharging circuit is provided with an IGBT, a diode and a parallel current limiting component in an intermediate DC circuit between a switching rectifier and an output inverter, and the drive is operated in one of three modes for motoring, regenerating and precharging.

Abstract translation: 综合交流再生电动机的驱动方式和操作方法，其中预充电电路在开关整流器和输出逆变器之间的中间直流电路中设置有IGBT，二极管和并联限流部件，并且驱动器在一个 三种运行，再生和预充电模式。

公开(公告)号：US11728742B2

公开(公告)日：2023-08-15

申请号：US17243797

申请日：2021-04-29

Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation

Inventor： Shunsuke Tobayashi ,  Hiromitsu Suzuki

IPC: H02M5/458 ,  H02M7/483 ,  H02M7/487 ,  H02P27/08 ,  H02P27/14

CPC classification number: H02M5/4585 ,  H02M7/483 ,  H02M7/487 ,  H02M7/4833 ,  H02P27/08 ,  H02P27/14 ,  H02P2201/01

Abstract: A power conversion apparatus capable of supplying a required reactive power while dynamically changing a dead band near 0 reactive current and maintaining a balance of DC voltage is provided. The power conversion apparatus including a three-level converter, a PWM controller for the three-level converter, an input current detector of the three-level converter, a coordinate converter that converts the current into a d-axis and q-axis current feedback, the reactive power control unit that controls a reactive power and outputs an reactive current reference, a d-axis current control unit having a dead band part for setting the d-axis current reference with hysteresis characteristics in the q-axis current feedback, and outputs the d-axis voltage reference, a q-axis current control unit that outputs a q-axis voltage reference based on the q-axis current reference, an inverse coordinate converter that outputs a three-phase AC voltage command based on the d-axis and q-axis voltage reference.