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1. 发明专利

JPWO2020213037A1 電力変換装置、電力変換システム、及びプログラム审中-公开
公开(公告)号：JPWO2020213037A1
公开(公告)日：2021-10-21
申请号：JP2019016168
申请日：2019-04-15
申请人：株式会社東芝 , 東芝エネルギーシステムズ株式会社
发明人：関口慧 , 石黒崇裕
IPC分类号： H02M7/25 , H02H7/12 , H02J3/36 , H02M7/49
摘要：電力変換装置(1)は、電力変換器(10)と、交流遮断器(CB)と、スイッチング制御部(240)と、遮断制御部(250)とを持つ。電力変換器(10)は、アームを含む。アームは、直列接続された複数の単位変換器を含む。複数の単位変換器のそれぞれは、スイッチング素子によって充放電を切り替え可能なコンデンサを含む。交流遮断器(CB)は、交流系統と、電力変換器(10)との間に接続される。スイッチング制御部(240)は、交流の電圧(Vd)の絶対値が第1閾値より大きい、もしくは第2閾値( 第1閾値)より大きい場合において、ゲートブロック指令(GB)が出力されたことに伴って絶対値が瞬時的に変化していない場合、交流遮断器(CB)を開放状態にする。

2. 发明专利

JP2003324972A Insulating structure of power conversion device 审中-公开
标题翻译：电力转换装置的绝缘结构
公开(公告)号：JP2003324972A
公开(公告)日：2003-11-14
申请号：JP2002124555
申请日：2002-04-25
申请人： Fuji Electric Co Ltd , 富士電機株式会社
发明人： NODA TOSHIYUKI , FURUKAWA JIRO
IPC分类号： H02M7/25 , H02M7/48 , H02M7/483
摘要： PROBLEM TO BE SOLVED: To reduce the withstand voltage between a power conversion device and the case thereof for the reduction in the size thereof even if the main circuit voltage of the power conversion device is high. SOLUTION: The power conversion device is composed of rectifiers 11 and 12, an inverter 15, smoothing capacitors 13 and 14 connected with a direct- current main circuit which connects together the direct-current sides thereof, and respective control circuits which control them. The power conversion device is placed in the case 10 made of conductive material, and the case 10 is insulated from ground. A direct-current middle potential (M potential) point is determined, where the potential from the positive pole P of the direct-current main circuit of the power conversion device placed in the case 10 and the potential from the negative pole N thereof are equal to each other. The direct-current middle potential point and the case 10 are connected with each other, and the reference potential of the control circuits is fixed at the middle direct-current potential. Thus, the values of withstand voltage can be reduced between the power conversion device and the case 10 and between individual pieces of equipment. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使电力转换装置的主电路电压高，也可以减小功率转换装置与其外壳之间的耐电压，以减小其尺寸。解决方案：电力转换装置由整流器11和12，逆变器15，与连接在一起的直流主电路连接的平滑电容器13和14以及控制电路他们。电力转换装置放置在由导电材料制成的壳体10中，壳体10与地绝缘。确定直流中间电位（M电位）点，其中放置在壳体10中的功率转换装置的直流主电路的正极P的电位和来自其负极N的电位相等对彼此。直流中间电位点和壳体10相互连接，控制电路的基准电位固定在中间直流电位。因此，能够在功率转换装置和壳体10之间以及各个装置之间降低耐受电压值。版权所有（C）2004，JPO

3. 发明专利

JP3193809B2 失效
公开(公告)号：JP3193809B2
公开(公告)日：2001-07-30
申请号：JP20853093
申请日：1993-07-30
IPC分类号： H02M3/155 , H02M7/08 , H02M7/12 , H02M7/25

4. 发明专利

JPH1198837A DC POWER SOURCE APPARATUS 失效
公开(公告)号：JPH1198837A
公开(公告)日：1999-04-09
申请号：JP27812697
申请日：1997-09-24
申请人： SANSHA ELECTRIC MFG CO LTD
发明人： MORIGUCHI HARUO , ARAI TORU , FUJIYOSHI TOSHIICHI , ONO MASAYUKI , HAMADA SATOSHI , ISHII HIDEO
IPC分类号： H02M3/28 , H02M3/335 , H02M7/25 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To reduce switching loss. SOLUTION: An arbitrary AC voltage is rectified by an input side rectifying part 4 and supplied to a step-up converter 6. A voltage which is converted into a specified voltage through the step-up converter 6 is converted into a high-frequency voltage by an inverter 22 and supplied to a primary winding 52P of a transformer 52. The high-frequency voltage induced in a secondary winding 52S is rectified by output side rectifying parts 58, 60. The inverter 22 is constituted as a full bridge inverter having IGBT 28, 30, 40, 42 and diodes 32, 36, 44, 46, and capacitors 34, 38, 48, 50 are connected in parallel with IGBT 28, 30, 40, 42, respectively. By using charging and discharging of the capacitors 34, 38, 48, 50, the IGBT 28, 30, 40, 42 are turned into a state of electrical continuity. When currents do not flow in the IGBT 28, 30, 40, 42 and they are in an off state, and these voltages are set zero.

5. 发明专利

JP2573229B2 失效
公开(公告)号：JP2573229B2
公开(公告)日：1997-01-22
申请号：JP14866687
申请日：1987-06-15
申请人： TAKAHASHI ISAO , MITSUBISHI DENKI KK
发明人： TAKAHASHI ISAO , TANAKA KAZUHIKO , NISHIHIRO AKINORI
IPC分类号： H02M7/10 , H02M5/458 , H02M7/25 , H02M7/48 , H02M7/5387 , H02M7/797

6. 实用新型

JPH0657096U 失效
公开(公告)号：JPH0657096U
公开(公告)日：1994-08-05
申请号：JP4693
申请日：1993-01-05
IPC分类号： H02M7/25 , H02M7/12

7. 发明专利

JPH02206365A POWER UNIT 失效
公开(公告)号：JPH02206365A
公开(公告)日：1990-08-16
申请号：JP2571389
申请日：1989-02-06
申请人： TOSHIBA CORP
发明人： HIGAKI SHIGETOSHI
IPC分类号： H02M7/10 , G05F1/10 , H02M3/28 , H02M7/21 , H02M7/25
摘要： PURPOSE:To conduct a voltage control without requiring an expensive voltage sensor to enhance the economicity of an apparatus by feeding back and controlling a signal proportional to an input voltage from a DC/DC converter. CONSTITUTION:Switching elements 3S1, 3S2 are ON-OFF controlled via a drive circuit 9 by commands S1, S2 from a chopper control circuit 8. The input side of a DC/DC converter 6 is connected with both ends DP-DN of a chopper circuit 3. The power of the chopper control circuit 8 is supplied from secondary windings 6N5, 6N6 of a switching transformer 6T. The winding 6N6 is provided with a voltage sensing circuit composed of a diode 6D and a capacitor 6C1, of which detected voltage VFB is fed back as a detected signal of the output voltage of the power unit and compared with a reference voltage VREF by the chopper control circuit 8 to enable conducting a constant-voltage control.

8. 发明专利

JPS63190562A VOLTAGE MULTIPLYING RECTIFIER 失效
公开(公告)号：JPS63190562A
公开(公告)日：1988-08-08
申请号：JP1984687
申请日：1987-01-29
申请人： NEC CORP
发明人： GOTO TOSHIAKI , YAMAMOTO HIROSHI
IPC分类号： H02M7/25
摘要： PURPOSE:To reduce loss and miniaturize a voltage multiplying rectifier, by employing MOSFETs in the voltage multiplying circuit. CONSTITUTION:A voltage multiplying rectifier consists of capacitors 2, 3, MOSFETs 5a-6a, photo-transistors 9a, 10a, forming a photocoupler, light emission diodes 9b, 10b, resistors 13-16, an operational amplifier 17 and the like and supplies electric power to a DC load 4. According to this constitution, the MOS FETs 5a, 6a, corresponding to the polarity of an AC power source 1, turn ON through the photocoupler. As a result, the capacitors 2, 3 are charged respectively through the MOSFETs, whereby a voltage about two times of a power source voltage is supplied to the DC load 4. Further, the ON-resistance of the MOSFETs 5a, 6a are about 1/10 of the same of a rectifying diode; therefore, generation of heat or the like may be reduced.

9. 发明专利

JPS6059970A STEPUP CIRCUIT 失效
公开(公告)号：JPS6059970A
公开(公告)日：1985-04-06
申请号：JP16457583
申请日：1983-09-07
申请人： HITACHI LTD , HITACHI HARAMACHI DENSHI KOGYO
发明人： MIYAGAWA NOBUAKI , YAZAWA YOSHIAKI , MUKAI TOUJI , IKEDA TAKAHIDE , KAMEI TATSUYA , URUNO TOSHIO , OOZEKI SHIYOUICHI
IPC分类号： H02M7/25 , H02M3/07 , H02M7/21
摘要： PURPOSE:To improve the stepup performance of a stepup circuit by obtaining a double voltage in a charge pump system, charging a capacity via a blocking diode by the voltage, and then stepping up the voltage by the pulse operation to alter the voltage of a substrate. CONSTITUTION:An initial charge controllers 100, 150, 200, 250 are formed of transistors 9, 3, 4, and an inverter made of static capacity 11, a charging circuit 300 which includes transistors 7, 14 and a static capacity 13 is formed, and a stepup controller 400 is further formed of a transistor 6, thereby obtaining the double voltage of the power source voltage at a point B. The voltage is stepped up by a switch circuit 450 which includes transistors 15, 17, a charging circuit 500 having static capacity 21, and a stepup controller 600 which includes transistors 19, 20 to produce an output. Accordingly, the influence of the substrate effect of the MOS transistor 14 can be eliminated, and a voltage higher than the power source voltage can be generated by one chip.

10. 发明专利

JP6541155B2 電力変換装置及びその制御方法有权
公开(公告)号：JP6541155B2
公开(公告)日：2019-07-10
申请号：JP2016126444
申请日：2016-06-27
申请人：東芝三菱電機産業システム株式会社
发明人：松本脩平 , 馬場雄介 , 神宮勲 , 木村一秋
IPC分类号： H02M7/12 , H02M7/49 , H02M7/48 , H02M7/25

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