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    • 3. 发明公开
    • MULTILEVEL CONVERTER
    • 多级转换器
    • EP2996239A3
    • 2016-07-13
    • EP15180145.3
    • 2015-08-07
    • GE Energy Power Conversion Technology Ltd
    • XU, YongZHANG, FanSCHROEDER, Stefan
    • H02M7/487H02M7/49
    • H02M7/487H02M1/088H02M7/515H02M7/537
    • A multilevel converter (100) is disclosed. The multilevel converter (100) comprises a first switching branch (101) connected between a positive DC-link terminal (P) and an AC output terminal (a) and comprising series-connected first and second switching elements (S1, S2), a second switching branch (102) connected between the AC output terminal (a) and a negative DC-link terminal (N) and comprising series-connected third and fourth switching elements (S3, S4), a third switching branch (103) connected between a DC-link neutral point (M) and a connection point (1) of the first and the second switching elements (S1, S2), a fourth switching branch (104) connected between the DC-link neutral point (M) and a connection point (2) of the third and the fourth switching elements (S3, S4), the fourth switching branch (104) being completely independent from the third switching branch (103), and a flying capacitor (Cf) connected between the connection point (1) of the first and the second switching elements (S1, S2) and the connection point (2) of the third and the fourth switching elements (S3, S4).
    • 公开了一种多电平转换器(100)。 多电平转换器(100)包括连接在正直流链路端子(P)和交流输出端子(a)之间并包括串联连接的第一和第二开关元件(S1,S2)的第一开关支路(101) 连接在交流输出端子(a)和负直流链路端子(N)之间并包括串联连接的第三和第四开关元件(S3,S4)的第二开关支路(102) 第一和第二开关元件(S1,S2)的直流母线中性点(M)和连接点(1);第四开关分支(104),连接在直流母线中性点(M)和 第三和第四开关元件(S3,S4)的连接点(2),第四开关分支(104)与第三开关分支(103)完全独立;以及快速电容器(Cf),连接在连接点 (1),第一和第二开关元件(S1,S2)以及连接点 (2)中的第三和第四开关元件(S3,S4)。
    • 5. 发明公开
    • MULTILEVEL CONVERTER
    • MEHRPEGELUMRICHTER
    • EP2996239A2
    • 2016-03-16
    • EP15180145.3
    • 2015-08-07
    • GE Energy Power Conversion Technology Ltd
    • XU, YongZHANG, FanSCHROEDER, Stefan
    • H02M7/487H02M7/49
    • H02M7/487H02M1/088H02M7/515H02M7/537
    • A multilevel converter (100) is disclosed. The multilevel converter (100) comprises a first switching branch (101) connected between a positive DC-link terminal (P) and an AC output terminal (a) and comprising series-connected first and second switching elements (S1, S2), a second switching branch (102) connected between the AC output terminal (a) and a negative DC-link terminal (N) and comprising series-connected third and fourth switching elements (S3, S4), a third switching branch (103) connected between a DC-link neutral point (M) and a connection point (1) of the first and the second switching elements (S1, S2), a fourth switching branch (104) connected between the DC-link neutral point (M) and a connection point (2) of the third and the fourth switching elements (S3, S4), the fourth switching branch (104) being completely independent from the third switching branch (103), and a flying capacitor (Cf) connected between the connection point (1) of the first and the second switching elements (S1, S2) and the connection point (2) of the third and the fourth switching elements (S3, S4).
    • 公开了一种多电平转换器(100)。 所述多电平转换器(100)包括连接在正直流连接端子(P)和交流输出端子(a)之间并包括串联连接的第一和第二开关元件(S1,S2)的第一开关支路(101) 连接在AC输出端子(a)和负DC链路端子(N)之间的第二开关支路(102),包括串联连接的第三和第四开关元件(S3,S4),第三开关支路 第一和第二开关元件(S1,S2)的DC链路中性点(M)和连接点(1),连接在DC链路中性点(M)和第二开关元件 第三和第四开关元件(S3,S4)的连接点(2),与第三开关支路(103)完全独立的第四开关支路(104),以及连接在连接点 (S1)和第二开关元件(S1,S2)的连接点(1) (S3,S4)的第二和第四开关元件(2)。