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21. 发明专利

DE3586982D1 未知
公开(公告)号：DE3586982D1
公开(公告)日：1993-02-25
申请号：DE3586982
申请日：1985-10-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA MASATOSHI , SASHIDA NOBUO
IPC分类号： G05F1/70 , H02J3/18
摘要： 57 A static var compensator circuit having a parallel connection assembly which consists of a capacitor (7) and a reactor (8), and a static var compensator (5) comprising a separate reactor (12) connected between the node of the reactor (8) and the capacitor (7) of the assembly and the output terminal (11) of the static var compensator (5).

22. 发明专利

CA2053381A1 Power Conversion Apparatus 未知
公开(公告)号：CA2053381A1
公开(公告)日：1992-04-17
申请号：CA2053381
申请日：1991-10-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASHIDA NOBUO , SANADA KAZUNORI
IPC分类号： H02M5/27 , H02M7/48 , H02M7/5387 , H02M7/42
摘要： A power conversion apparatus comprises an inverter circuit (2) for converting DC power into AC power which has a first frequency; a transformer (3) connected to the inverter circuit (2); a cyclo converter circuit (4) having a bidirectional switch capable of controlling the direction in which an electric current passes and converting the output from the transformer (3) into AC power which has a second frequency; and a switching signal generating circuit (13) for generating a switching signal for controlling the polarity of the bidirectional switch of the cyclo converter circuit (4) in such a manner that the output voltage from the inverter circuit (2) does not encounter a short circuit.

23. 发明专利

CH648163A5 DISPOSITIF D'ALLUMAGE POUR THYRISTORS A ALLUMAGE LUMINEUX. 未知
公开(公告)号：CH648163A5
公开(公告)日：1985-02-28
申请号：CH336382
申请日：1982-06-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA KOJI , SASHIDA NOBUO
IPC分类号： H02M7/155 , H02M1/088 , H03K17/79 , H02M1/092

24. 发明专利

DE3322873A1 未知
公开(公告)号：DE3322873A1
公开(公告)日：1984-01-19
申请号：DE3322873
申请日：1983-06-24
申请人： MATSUMURA SUSUMU , MITSUBISHI ELECTRIC CORP
发明人： MATSUMURA SUSUMU , YANO MASAO , SASHIDA NOBUO , YAMAMOTO YOSHIHIKO
IPC分类号： H02H7/12 , H02H7/122 , H02M1/00 , H02M1/092 , H03K17/082 , H03K17/72 , H03K17/79 , H03K17/08 , H03K17/78 , H02M1/08
摘要： A thyristor apparatus employing light-triggered thyristors comprises forward voltage detecting circuits (15) and a thyristor number detecting circuit (17). The forward voltage detecting circuits (15) detect forward voltages applied to light-triggered thyristors (13) to provide detected signals. The thyristor number detecting circuit (17) is responsive to the detected signals to cause light-triggered thyristors in a thyristor arm (U) to be turned on simultaneously in the case where the number of the light-triggered thyristors being supplied with forward voltages is one or more but not more than a predetermined number. Accordingly, if and when an overvoltage is applied to the thyristor arm (U), overvoltage suppressing elements (14) are prevented from being damaged even if partial commutation failure occurs in the light-triggered thyristors.

25. 发明专利

DE69123928D1 未知
公开(公告)号：DE69123928D1
公开(公告)日：1997-02-13
申请号：DE69123928
申请日：1991-10-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASHIDA NOBUO , SANADA KAZUNORI
IPC分类号： H02M5/27 , H02M7/48 , H02M7/5387 , H02M5/297
摘要： A power conversion apparatus comprises an inverter circuit (2) for converting DC power into AC power which has a first frequency; a transformer (3) connected to the inverter circuit (2); a cyclo converter circuit (4) having a bidirectional switch capable of controlling the direction in which an electric current passes and converting the output from the transformer (3) into AC power which has a second frequency; and a switching signal generating circuit (13) for generating a switching signal for controlling the polarity of the bidirectional switch of the cyclo converter circuit (4) in such a manner that the output voltage from the inverter circuit (2) does not encounter a short circuit.

26. 发明专利

DE69108650T2 未知
公开(公告)号：DE69108650T2
公开(公告)日：1995-09-28
申请号：DE69108650
申请日：1991-09-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASHIDA NOBUO , SANADA KAZUNORI , KOYAMA MASATO
IPC分类号： H02M5/27 , H02M7/48 , H02M7/539
摘要： A DC-to-AC electric power converting apparatus comprising: an inverter circuit (14) having a plurality of switching elements and converting DC electric power into AC electric power; a transformer (2A) connected to the inverter circuit (14); a cyclo-converter circuit (15) for converting the frequency of the output from the transformer (2A); a carrier signal generator (6A) for generating a carrier signal of a predetermined frequency; an inverter switching circuit (17A) for controlling the switching operation of a plurality of the switching elements of the inverter circuit (14) in synchronization with the carrier signal and switching a plurality of the switching elements of the inverter circuit (14) in a period in which an electric current is not substantially passed through the inverter circuit (14); a reference voltage signal generating circuit (16) for generating a reference voltage signal for the AC voltage to be transmitted from the cyclo-converter circuit (15); and a switching signal generating circuit (18A) for generating a control signal for controlling the cyclo-converter circuit (15) in response to the reference voltage signal generated by the reference voltage signal generating circuit (16) and the carrier signal generated by the carrier signal generator (6A).

27. 发明专利

DE69108650D1 未知
公开(公告)号：DE69108650D1
公开(公告)日：1995-05-11
申请号：DE69108650
申请日：1991-09-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： SASHIDA NOBUO , SANADA KAZUNORI , KOYAMA MASATO
IPC分类号： H02M5/27 , H02M7/48 , H02M7/539
摘要： A DC-to-AC electric power converting apparatus comprising: an inverter circuit (14) having a plurality of switching elements and converting DC electric power into AC electric power; a transformer (2A) connected to the inverter circuit (14); a cyclo-converter circuit (15) for converting the frequency of the output from the transformer (2A); a carrier signal generator (6A) for generating a carrier signal of a predetermined frequency; an inverter switching circuit (17A) for controlling the switching operation of a plurality of the switching elements of the inverter circuit (14) in synchronization with the carrier signal and switching a plurality of the switching elements of the inverter circuit (14) in a period in which an electric current is not substantially passed through the inverter circuit (14); a reference voltage signal generating circuit (16) for generating a reference voltage signal for the AC voltage to be transmitted from the cyclo-converter circuit (15); and a switching signal generating circuit (18A) for generating a control signal for controlling the cyclo-converter circuit (15) in response to the reference voltage signal generated by the reference voltage signal generating circuit (16) and the carrier signal generated by the carrier signal generator (6A).

28. 发明专利

DE3935243C2 未知
公开(公告)号：DE3935243C2
公开(公告)日：1994-02-17
申请号：DE3935243
申请日：1989-10-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： MORI HARUYOSHI , SASHIDA NOBUO
IPC分类号： H02J9/06 , H02M5/458 , H02M1/12 , H02J7/02 , H02M5/42 , H02M5/44

29. 发明专利

CA1317635C A.C. POWER SUPPLY APPARATUS 未知
公开(公告)号：CA1317635C
公开(公告)日：1993-05-11
申请号：CA592977
申请日：1989-03-07
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAWABATA TAKAO , SASHIDA NOBUO
IPC分类号： H01M8/04 , H02J9/06 , H02M5/04 , H02M7/493
摘要： An a.c. power supply apparatus, categorized to be an uninterruptible power supply apparatus or a fuel cell power generation apparatus, has its first, second and third converting devices connected in star configuration with a common bus, whereby the number of power converting devices is reduced and a compact, light weighty and efficient power supply apparatus is realized.

30. 发明专利

DE3586982T2 未知
公开(公告)号：DE3586982T2
公开(公告)日：1993-05-06
申请号：DE3586982
申请日：1985-10-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： TAKEDA MASATOSHI , SASHIDA NOBUO
IPC分类号： G05F1/70 , H02J3/18
摘要： 57 A static var compensator circuit having a parallel connection assembly which consists of a capacitor (7) and a reactor (8), and a static var compensator (5) comprising a separate reactor (12) connected between the node of the reactor (8) and the capacitor (7) of the assembly and the output terminal (11) of the static var compensator (5).

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