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    • 63. 发明公开
    • Wechselrichter, insbesondere für Photovoltaikanlagen
    • Wechselrichter,insbesonderefürPhotovoltaikanlagen
    • EP2051357A1
    • 2009-04-22
    • EP07020466.4
    • 2007-10-19
    • SMA Solar Technology AG
    • Brenicker, SvenGreizer, FrankVictor, Matthias
    • H02M1/15H02M7/5387H02M1/44
    • H02M7/515H02M1/15H02M1/44H02M7/5387H02M7/5388Y02E10/56
    • Bei einem Wechselrichter (1) zum Umwandeln einer elektrischen Gleichspannung, insbesondere einer Photovoltaik-Gleichspannungsquelle in eine Wechselspannung mit einem Gleichspannungseingang mit zwei Anschlüssen (DC+, DC-) und einem Wechselspannungsausgang mit zwei Anschlüssen (AC1, AC2) und mit einer Halbleiter-Schaltelemente (S1-S6) umfassenden Brückenschaltung, wobei diese einen vier Schaltelemente (S1-S4) umfassenden ersten Brückenzweig (Z1), einen zweiten zwei weitere Schaltelemente (S5, S6) umfassenden Brückenzweig (Z2) sowie einen mit zusätzlichen Dioden (D7, D8) versehenen Freilaufkreis aufweist, wird der Wirkungsgrad weiter erhöht, ohne dass hochfrequente Störungen und kapazitive Ableitströme auf der Generatorseite auftreten können. Dies wird dadurch erreicht, dass jeweils eine der Freilaufdioden (D7,D8) mit jeweils einem der im ersten Brückenzweig (Z1) liegenden Schaltelemente (S2, S3) einen Freilaufzweig bildet, der einen Freilaufstrom in einem von der Gleichspannung entkoppelten Zustand führt.
    • 逆变器(1)具有两个具有开关元件(S1-S6)的桥接支路(Z1,Z2)和以相反的导通方向设置的二极管(D7,D8)。 二极管安装在桥接支路(Z2)的交流电压端子与对应于开关元件(S5,S6)的连接点和/或开关元件(S1,S2)之间的连接点和/或开关元件 (S3,S4)。 二极管被连接,使得开关元件(S2,S3)中的一个和二极管中的一个在逆变器的直流电压的解耦状态下携带续流电流。 还包括用于使用逆变器将电直流电转换为交流电压的控制方法的独立权利要求。
    • 64. 发明公开
    • POWER CONVERTING DEVICE
    • ENERGIEUMWANDLUNGSEINRICHTUNG
    • EP2006991A1
    • 2008-12-24
    • EP07714351.9
    • 2007-02-16
    • Kabushiki Kaisha Toshiba
    • KUZUMAKI, Atsuhiko c/o I.P.D., Toshiba CorporationMOCHIKAWA, Hiroshi c/o I.P.D., Toshiba CorporationKOYAMA, Tateo c/o I.P.D., Toshiba Corporation
    • H02M7/5387
    • H02M7/5387H02M1/096H02M1/34H02M7/5388H02M2001/0051H02M2001/342Y02B70/1491
    • An electric power conversion system characterized by a direct current power supply (1), a plurality of main circuit switching devices (4u, 4v, ...) bridge-connected to convert direct current of the direct current power supply to alternating current, having free wheeling diodes (5u, 5v, ...) connected in reverse parallel thereto, respectively, and a reverse voltage application circuit (7) for applying a reverse voltage smaller than the direct current power supply to each free wheeling diode, upon a cutoff of back-flow current of the free wheeling diode, the reverse voltage application circuit being composed of a series connection of a low-voltage direct current power supply (8) having a voltage lower than a voltage of the direct current power supply, a reverse voltage application switching device (11) having a lower withstand voltage than the main circuit switching devices and adapted to turn on upon a reverse recovery of the free wheeling diode, and an auxiliary diode (12) having a shorter reverse recovery time than the free wheeling diode, the reverse voltage application switching device being a device having holes as a majority carrier.
    • 一种电力转换系统,其特征在于直流电源(1),多个主电路开关装置(4u,4v,...),其桥接连接以将直流电源的直流转换为交流电,具有 分别与其并联连接的续流二极管(5u,5v,...)和反向电压施加电路(7),用于在切断时向每个续流二极管施加小于直流电源的反向电压 所述反向电压施加电路由低电压直流电源(8)的串联连接构成,所述低压直流电源(8)的电压低于所述直流电源的电压,反向电压施加电路 电压施加开关装置(11)具有比主电路开关装置更低的耐受电压并且适于在续流二极管的反向恢复时导通,以及具有sho的辅助二极管(12) 反向恢复时间比续流二极管,反向电压施加开关装置是具有作为多数载体的孔的装置。
    • 65. 发明公开
    • Wechselrichter für hohe Spannungen und hohe Frequenzen
    • Wechselrichterfürhohe Spannungen und hohe Frequenzen。
    • EP0314982A2
    • 1989-05-10
    • EP88117443.7
    • 1988-10-19
    • Dynamit Nobel Aktiengesellschaft
    • Steiner, Ulrich, Dipl.-Ing.
    • H02M7/5387
    • H02M7/5388H02M7/5387
    • Bei einem wechselrichter mit vier steuerbaren Leistungsschal­tern (5, 6, 7, 8), lassen sich die Schaltgeschwindigkeit stei­gern und der Schaltungsaufwand reduzieren, wenn zur Steuerung der potentialmäßig hoch liegenden Leistungsschalter (5 bzw. 8) die Steuerspannung von Zenerdioden (13 bzw. 14), die in Serie zu den potentialmäßig tief liegenden Leistungsschaltern (6 bzw. 7) liegen, abgegriffen wird, wobei die Zenerdioden (13 bzw. 14) so eingebaut sind, daß sie leiten, wenn die zugehörigen Schal­ter (6 bzw. 7) geschlossen sind. Als Schalter sind besonders N­Kanal MOS-Transistoren, NPN-Bipolartransistoren oder Thyristo­ren geeignet. Der Wechselrichter ist als Stromgenerator zum An­steuern elektronischer Zünder besonders geeignet.
    • 在具有四个可控断路器(5,6,7,8)的逆变器中,如果与齐纳二极管(13和14)串联连接的齐纳二极管(13和14)的控制电压可以提高开关速度,并且开关复杂度降低 低电位的断路器(6和7)被拾取用于控制断路器(5和8)处于高电位,齐纳二极管(13和14)被安装成使得它们在相关联的断路器 6和7)关闭。 N沟道MOS晶体管,NPN双极晶体管或晶闸管特别适用于断路器。 该逆变器适用于触发电子点火器的电流发生器。
    • 66. 发明公开
    • INVERTER, METHOD AND DEVICE FOR CONTROLLING THE SAME
    • 逆变器,控制其的方法和装置
    • EP3301804A1
    • 2018-04-04
    • EP17185098.5
    • 2017-08-07
    • Vertiv Tech Co., Ltd.
    • XU, FubinZHANG, YonghuiBING, Yang
    • H02M7/487
    • H02M7/48H02J3/38H02J7/35H02M7/217H02M7/219H02M7/487H02M7/5387H02M7/5388H02M2001/0054H02P6/04H02P27/06Y02B70/1491
    • An inverter, a method and a device for controlling the inverter are provided, to improve efficiency of the inverter. The inverter includes a three-level active clamped topology including a first and second bus capacitors and an inverter circuit, the inverter circuit includes a first switch transistor to a sixth switch transistor. The inverter further includes a seventh switch transistor and an eighth switch transistor; the seventh switch transistor and the eighth switch transistor are connected in series between the positive direct current bus and the negative direct current bus in a same direction, and a serial point of the seventh switch transistor and the eighth switch transistor is connected to a serial point of the second switch transistor and the third switch transistor; and the seventh switch transistor and the eighth switch transistor are anti-parallel connected to corresponding diodes respectively.
    • 提供了一种逆变器,用于控制逆变器的方法和装置,以提高逆变器的效率。 该逆变器包括三电平有源钳位拓扑,该三电平有源钳位拓扑包括第一和第二总线电容器以及逆变器电路,逆变器电路包括第一开关晶体管至第六开关晶体管。 该逆变器还包括第七开关晶体管和第八开关晶体管; 第七开关晶体管和第八开关晶体管串联在正直流母线和负直流母线之间的同一方向上,第七开关晶体管和第八开关晶体管的串联点连接到串联点 第二开关晶体管和第三开关晶体管; 第七开关晶体管和第八开关晶体管分别反向并联连接到相应的二极管。
    • 67. 发明公开
    • ELECTRIC POWER CONVERSION DEVICE
    • 电力转换装置
    • EP3285388A1
    • 2018-02-21
    • EP16779905.5
    • 2016-03-29
    • Mitsubishi Electric Corporation
    • JIMICHI, TakushiKOYANAGI, KimiyukiKIKUCHI, Takeshi
    • H02M7/497H02M7/48
    • H02M7/483H02M1/32H02M7/003H02M7/2173H02M7/5388H02M2001/0003H02M2001/0054H02M2001/325H02M2007/4835
    • In an electric power conversion device (100) which performs power conversion between multiphase AC and DC, a first converter cell (10) of a first arm (4) for each phase of a power converter (1) is composed of: a capacitor (20); a Leg A having upper and lower arms having switching elements; and a Leg B having upper and lower arms one of which has a switching element and the other of which has only a diode, and a second converter cell (15) of a second arm (5) is composed of: a capacitor (40); and a Leg Aa having upper and lower arms having switching elements. A control device (2) has a steady mode and a protection mode. When short-circuit between DC terminals of the power converter (1) is detected, the control device (2) switches from the steady mode to the protection mode, turns off all the switching elements of the first converter cell (10) of the first arm (4), and controls the second converter cell (15) of the second arm (5) so as to perform reactive power compensation operation.
    • 在进行多相交流和直流之间的电力转换的电力转换装置(100)中,用于电力转换器(1)的每相的第一臂(4)的第一转换器单元(10)包括:电容器 20); 具有带开关元件的上臂和下臂的腿A; 以及具有上臂和下臂的腿B,其中一个臂具有开关元件,另一个臂仅具有二极管,并且第二臂(5)的第二变换器单元(15)由以下部件构成:电容器(40) ; 以及具有上臂和下臂的具有开关元件的腿部Aa。 控制装置(2)具有稳定模式和保护模式。 当检测到电力转换器(1)的直流端子之间的短路时,控制装置(2)从稳定模式切换到保护模式,断开第一转换器单元(10)的所有开关元件 (4),并且控制第二臂(5)的第二转换器单元(15)以执行无功功率补偿操作。
    • 68. 发明授权
    • A VOLTAGE SOURCE CONVERTER
    • 一个电压源转换器
    • EP2266198B1
    • 2017-05-31
    • EP08718105.3
    • 2008-03-20
    • ABB Research Ltd.
    • NORRGA, StaffanJONSSON, Tomas, U
    • H02M7/49H02M1/32H02M7/483
    • H02M7/483B60L15/007H02M7/49H02M7/5388H02M2001/325H02M2007/4835Y02T10/645
    • A Voltage Source Converter having at least one phase leg connected to opposite poles of a direct voltage side of the converter and including a series connection of switching cells has an arrangement configured to apply a pressure to opposite ends of stacks of semiconductor assemblies for pressing the assemblies towards each other so as to obtain electric contact between semiconductor assemblies in the stack while ensuring that the semiconductor assemblies of a first path of each switching cell of the converter go into a permanently closed circuit state in case of a failure of the respective switching cell. A second path of each switching cell has a member configured to keep the second path including an energy storing capacitor non-conducting upon occurrence of the failure.
    • 具有连接到转换器的直流电压侧的相反极并且包括开关单元的串联连接的至少一个相臂的电压源转换器具有配置成向半导体组件的堆叠的相对端施加压力以用于按压组件 以便在堆叠中的半导体组件之间获得电接触,同时确保在各个开关单元发生故障的情况下,转换器的每个开关单元的第一路径的半导体组件进入永久闭合的电路状态。 每个开关单元的第二路径具有构件,该构件被配置为在发生故障时保持包括能量存储电容器的第二路径不导通。
    • 70. 发明公开
    • POWER CONVERSION DEVICE
    • STROMWANDLER
    • EP2416486A4
    • 2017-01-25
    • EP10761508
    • 2010-02-24
    • HITACHI LTD
    • INOUE SHIGENORIKATOH SHUJINARUSHIMA JUNKATO TETSUYA
    • H02M7/48G05F1/70H01F27/34H01F27/42H02M7/12H02M7/5387H02M7/757
    • H02M7/797H01F27/42H02J3/1857H02J3/36H02M1/08H02M7/217H02M7/219H02M7/5388H02M2001/0009H02M2007/4835Y02E40/26Y02E60/60
    • A power conversion device configured to be interconnected with an electric power system through a transformer, and configured to have unit converters cascade-connected, wherein reactors will become unnecessary, and the volume and weight thereof will be reduced. The power conversion device (101), interconnected with a three-phase power system through the transformer (105), and transmitting and receiving active or reactive power with the three-phase power system (100), has the secondary winding of the transformer (105) made to be open winding having six terminals (106 to 111); has a first converter group (112), consisting of a circuit that have three converter arms (113 to 115) which are star-connected, connected to three terminals (106 to 108) of the secondary winding; and has a second converter group (116), consisting of a circuit that have three different converter arms (117 to 119) which are star-connected, connected to three terminals (109 to 111) of the secondary winding; and also has the neutral point (the point where the star connection is made) (121) of the first converter group (112), and the neutral point (122) of the second converter group (116) made to be the output terminals of the power conversion device.
    • 一种功率转换装置,其被配置为通过变压器与电力系统互连,并且被配置为具有串联连接的单元转换器,其中反应器将变得不必要,并且其体积和重量将被减小。 与三相电力系统通过变压器(105)互连,并且与三相电力系统(100)发送和接收有功或无功功率的电力转换装置(101)具有变压器的次级绕组( 105)被制成具有六个端子(106至111)的开路绕组; 具有第一转换器组(112),其由具有三个转换器臂(113至115)的电路组成,该三个转换器臂(113-115)连接到二次绕组的三个端子(106至108); 并且具有第二转换器组(116),其由具有三个不同的转换器臂(117至119)的电路组成,该电路是星形连接的,连接到次级绕组的三个端子(109至111); 并且还具有第一转换器组(112)的中性点(星形连接点)(121)和第二转换器组(116)的作为输出端的输出端的中性点(122) 电源转换装置。