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1. 发明授权

US09866120B2 Power conversion device 有权
公开(公告)号：US09866120B2
公开(公告)日：2018-01-09
申请号：US15311953
申请日：2015-04-21
申请人： MITSUBISHI ELECTRIC CORPORATION , TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Kimiyuki Koyanagi , Takushi Jimichi , Yasuhiro Shinomiya , Taichiro Tsuchiya
IPC分类号： H02M3/158 , H02M1/32
CPC分类号： H02M3/158 , H02M1/32 , H02M2001/0006 , H02M2001/325 , H02M2007/4835
摘要： A power conversion device including: an energy storage unit which receives and stores voltage of a self-power-feeding device; and a bypass unit drive device which, when voltage of the self-power-feeding device becomes smaller than a predetermined lower limit value, causes a bypass unit to perform short-circuiting operation by power stored in the energy storage unit. Thus, by appropriately setting the above voltage lower limit value as a threshold value for the short-circuiting operation, it becomes possible to swiftly and reliably perform short-circuiting protection operation even if a cell converter has failed, thus it is possible to always safely continue the operation of the power conversion device.

2. 发明授权

US09564808B2 Electric power conversion device 有权
标题翻译：电力转换装置
公开(公告)号：US09564808B2
公开(公告)日：2017-02-07
申请号：US14650741
申请日：2013-09-02
申请人： Mitsubishi Electric Corporation , Toshiba Mitsubishi-Electric Industrial Systems Corporation
发明人： Kimiyuki Koyanagi , Takushi Jimichi , Satoshi Azuma , Yasuhiko Hosokawa , Shinzo Tamai , Sadao Funahashi , Kotaro Higashi
IPC分类号： G05F1/00 , H02M3/158 , H02M7/483 , H02M1/084
CPC分类号： H02M3/158 , H02M1/0845 , H02M7/483 , H02M2001/0006 , H02M2001/325 , H02M2007/4835
摘要： An electric power conversion device includes a plurality of cell converters connected in cascade and including main circuits, drive circuits, and self-feeding devices for supplying power to the drive circuits by being supplied with power from the main circuits. The drive circuit is supplied with power via a first feed line from the self-feeding device in the corresponding cell converter, and supplied with power from the self-feeding device in another cell converter via a second feed line on which an insulation input/output circuit is provided. When the self-feeding device is abnormal, the drive circuit is supplied with power from the self-feeding device in the other cell converter, whereby the electric power conversion device continuously provides a desired output.
摘要翻译：电力转换装置包括串联连接的多个电池转换器，包括主电路，驱动电路和用于通过从主电路供电来向驱动电路供电的自供电装置。驱动电路通过来自相应电池转换器中的自供电装置的第一馈电线供电，并通过第二馈电线从另一电池转换器中的自供电装置供电，绝缘输入/输出提供电路。当自动馈送装置异常时，驱动电路从另一个电池转换器中的自供给装置供电，由此电力转换装置连续地提供期望的输出。

3. 发明授权

US10186952B2 Power conversion device 有权
公开(公告)号：US10186952B2
公开(公告)日：2019-01-22
申请号：US15120683
申请日：2015-02-26
申请人： Mitsubishi Electric Corporation , TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Takushi Jimichi , Kimiyuki Koyanagi , Sadao Funahashi , Taichiro Tsuchiya , Yasuhiro Shinomiya
IPC分类号： H02M7/483 , H02M1/32
摘要： A power conversion device in which a plurality of converter cells are connected in series with one another. The converter cells each include two or more semiconductor devices, an energy storage element and a bypass element including a constituent element for setting the bypass element to be close-circuited by detecting abnormality of a converter cell, and including a constituent element for controlling, among the semiconductor devices, a semiconductor device connected in parallel with the bypass element to set in a turn-on state, at the same time when the bypass element is set close-circuited or in advance of its close circuit.

4. 发明授权

US10038392B2 Inverter 有权
公开(公告)号：US10038392B2
公开(公告)日：2018-07-31
申请号：US15502625
申请日：2014-08-29
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , Mitsubishi Electric Corporation
发明人： Keisuke Ohnishi , Masahiro Kinoshita , Kimiyuki Koyanagi
IPC分类号： H02M1/08 , H02M7/537 , H02J9/06 , H02M1/00
CPC分类号： H02M7/537 , H02J9/062 , H02M1/08 , H02M7/483 , H02M2001/0054 , Y02B70/1483 , Y02B70/1491
摘要： An inverter includes: a first transistor (Q1) connected between a first input terminal (T1) and an output terminal (T4); a second transistor (Q2) connected between the output terminal (T4) and a second input terminal (T2); first and second diodes (D1, D2) connected in anti-parallel to the first and second transistors (Q1, Q2), respectively; and a bidirectional switch that is connected between a third input terminal (T3) and the output terminal (T4) and that includes third and fourth transistors (Q3, Q4) and third and fourth diodes (D3, D4). The first and second transistors (Q1, Q2) and the third and fourth diodes (D3, D4) are each formed of a wide band gap semiconductor. The third and fourth transistors (Q3, Q4) and the first and second diodes (D1, D2) are each formed of a semiconductor other than the wide band gap semiconductor.

5. 发明授权

US10284111B2 Power conversion apparatus having connection conductors having inductance which inhibits ripple current 有权
公开(公告)号：US10284111B2
公开(公告)日：2019-05-07
申请号：US14555986
申请日：2014-11-28
申请人： Toshiba Mitsubishi-Electric Industrial Systems Corporation , Mitsubishi Electric Corporation
发明人： Hiroyoshi Komatsu , Manabu Souda , Kimiyuki Koyanagi
IPC分类号： H02M7/537 , H02M5/458 , H02M7/00 , H02M7/493 , H02M1/14 , H02J3/01 , H05K7/14
摘要： A power conversion apparatus includes a first power conversion circuit including a first switching element, a second power conversion circuit including a second switching element, a DC conductor which is provided in the first power conversion circuit and supplies a DC power to the first power conversion circuit, and a connection conductor which is provided in the first power conversion circuit, has a length having an inductance for inhibiting a flow of a ripple current caused by switching of the second switching element of the second power conversion circuit, and connects the DC conductor and the second power conversion circuit.

6. 发明授权

US10116228B2 Converter and power conversion device manufactured using the same 有权
公开(公告)号：US10116228B2
公开(公告)日：2018-10-30
申请号：US15504558
申请日：2014-08-29
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , Mitsubishi Electric Corporation
发明人： Keisuke Ohnishi , Masahiro Kinoshita , Kimiyuki Koyanagi
IPC分类号： H02M5/458 , H02M7/04 , H02M1/08 , H02M1/00
摘要： A converter includes: a first transistor (Q1) connected between a first output terminal (T1) and an input terminal (T0); a second transistor (Q2) connected between the input terminal (T0) and a second output terminal (T2); first and second diodes (D1, D2) connected in anti-parallel to the first and second transistors (Q1, Q2), respectively; and a bidirectional switch that is connected between the input terminal (T0) and a third output terminal (T3) and that includes third and fourth transistors (Q3, Q4) and third and fourth diodes (D3, D4). The first and second diodes (D1, D2) and the third and fourth transistors (Q3, Q4) each are formed of a wide band gap semiconductor. The third and fourth diodes (D3, D4) and the first and second transistors (Q1, Q2) each are formed of a semiconductor other than the wide band gap semiconductor.

7. 发明授权

US10033299B2 Converter and power conversion device including the same 有权
公开(公告)号：US10033299B2
公开(公告)日：2018-07-24
申请号：US15567134
申请日：2015-04-20
申请人： TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION , Mitsubishi Electric Corporation
发明人： Keisuke Ohnishi , Masahiro Kinoshita , Kimiyuki Koyanagi
IPC分类号： H02M7/217
摘要： A converter includes a first diode (D1) having its anode and cathode connected to input terminal (T0) and a first output terminal (T1), respectively, a second diode (D2) having its anode and cathode connected to a second output terminal (T2) and an input terminal (T0), respectively, and a bidirectional switch connected between the input terminal (T0) and a third output terminal (T3). The bidirectional switch includes third to sixth diodes (D3 to D6) and a transistor (Q1). The first diode (D1), the second diode (D2), and the transistor (Q) are each formed of a wide-bandgap semiconductor, and the third to sixth diodes (D3 to D6) are each formed of a semiconductor other than wide-bandgap semiconductors.

8. 发明授权

US09780685B2 Electrical power converter with a converter cell series unit 有权
公开(公告)号：US09780685B2
公开(公告)日：2017-10-03
申请号：US14412524
申请日：2013-07-02
申请人： Mitsubishi Electric Corporation , Toshiba Mitsubishi—Electric Industrial Systems Corporation
发明人： Takushi Jimichi , Kimiyuki Koyanagi , Satoshi Azuma , Sadao Funahashi , Shinzo Tamai , Yasuhiko Hosokawa , Kotaro Higashi
IPC分类号： H02M7/483 , H02M7/04 , H02M7/44 , H02M7/19 , H02M1/00 , H02M7/48
CPC分类号： H02M7/04 , H02M7/19 , H02M7/44 , H02M7/483 , H02M2001/0074 , H02M2007/4822 , H02M2007/4835
摘要： An electrical power converter includes: AC voltage terminals U, V, and W; DC voltage terminals P and N; a converter cell series unit composed of one or more converter cells connected in series between the AC voltage terminals U, V, and W and the DC voltage terminals P and N, each converter cell including a semiconductor element and a capacitor; and a first inductance connected in series to the converter cell series unit, between, of the DC voltage terminals P and N, a DC voltage terminal at the lowest potential with respect to the ground, and the AC voltage terminals U, V, and W.

9. 发明授权

US09559612B2 Power conversion device 有权
标题翻译：电源转换装置
公开(公告)号：US09559612B2
公开(公告)日：2017-01-31
申请号：US14890511
申请日：2014-03-14
申请人： Mitsubishi Electric Corporation , TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
发明人： Kimiyuki Koyanagi , Masahiro Kinoshita
IPC分类号： H02M7/537 , H02M7/00
CPC分类号： H02M7/537 , H02M7/003
摘要： Four bus bars, which are two positive-electrode-side bus bars connecting a positive electrode of a capacitor series circuit and a positive electrode of a power conversion section, a negative-electrode-side bus bar connecting a negative electrode of the capacitor series circuit and a negative electrode of the power conversion section, and an intermediate connection bus bar connecting in series two smoothing capacitors in the capacitor series circuit, are stacked in close contact with one another via insulating layers, to form a 4-layer bus bar. The two positive-electrode-side bus bars are not adjacent to each other and are connected in parallel to each other. The positive-electrode-side bus bar which is one of them and the negative-electrode-side bus bar are disposed adjacent to each other, thereby to reduce DC wiring inductances of the wiring structure in which the capacitor series circuit and the power conversion section are connected.
摘要翻译：连接电容器串联电路的正极和电力转换部的正极的两个正极侧母线的四个母线，连接电容器串联电路的负极的负极侧母线并且电容器串联电路中串联连接两个平滑电容器的中间连接汇流条通过绝缘层彼此紧密地层叠，形成4层母线。两个正电极侧母线彼此不相邻并且彼此并联连接。其中一个正极侧汇流条和负极侧汇流条彼此相邻配置，从而减小了电容器串联电路和电力转换部的布线结构的直流布线电感被连接。

10. 发明申请

US20150188447A1 ELECTRICAL POWER CONVERTER 有权
标题翻译：电力转换器
公开(公告)号：US20150188447A1
公开(公告)日：2015-07-02
申请号：US14412524
申请日：2013-07-02
申请人： Mitsubishi Electric Corporation , Toshiba Mitsubishi - Electric Industrial Systems Corporation
发明人： Takushi Jimichi , Kimiyuki Koyanagi , Satoshi Azuma , Sadao Funahashi , Shinzo Tamai , Yasuhiko Hosokawa , Kotaro Higashi
IPC分类号： H02M7/04 , H02M7/44
CPC分类号： H02M7/04 , H02M7/19 , H02M7/44 , H02M7/483 , H02M2001/0074 , H02M2007/4822 , H02M2007/4835
摘要： An electrical power converter includes: AC voltage terminals U, V, and W; DC voltage terminals P and N; a converter cell series unit composed of one or more converter cells connected in series between the AC voltage terminals U, V, and W and the DC voltage terminals P and N, each converter cell including a semiconductor element and a capacitor; and a first inductance connected in series to the converter cell series unit, between, of the DC voltage terminals P and N, a DC voltage terminal at the lowest potential with respect to the ground, and the AC voltage terminals U, V, and W.
摘要翻译：电力转换器包括：交流电压端子U，V和W; 直流电压端子P和N; 由串联连接在交流电压端子U，V，W之间的一个或多个转换器单元和直流电压端子P，N构成的转换器单元串联单元，每个转换器单元包括半导体元件和电容器; 以及与直流电压端子P和N之间的直流电压端子相对于地面处于最低电位的直流电压端子和交流电压端子U，V和W串联连接到转换器单元串联单元的第一电感。

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