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    • 5. 发明公开
    • A DC POWER SOURCE FOR A HIGH VOLTAGE POWER APPARATUS
    • WECHSELSTROMQUELLEFÜREINE HOCHSPANNUNGSVERSORGUNG
    • EP2510600A1
    • 2012-10-17
    • EP09765132.7
    • 2009-12-10
    • ABB Research Ltd
    • PAPASTERGIOU, KonstantinosHERMANSSON, WillyDEMETRIADES, Georgios
    • H02J3/18H02J3/36H02J7/34H02J15/00H02M1/32
    • H02M1/32H02J3/1835H02M2001/0077Y02E40/30Y10T307/685
    • The invention relates to a dc power source (3) for a high voltage power apparatus (1), the dc power source (3) comprising one or more strings (4a-c) including a plurality of dc power source units connected in series, and switches (7, 9, 11, 13) configured to connect and disconnect said strings (4a-c). The switches (7, 9, 11, 13) are solid-state switches distributed among the power source units of each string (4a-c), and all solid-state switches (7, 9, 11, 13) in the string (4a-c) are arranged so that they are turned on and off simultaneously. Each switch (7, 9, 11, 13) is connected in parallel with a first controllable semiconductor (16) in a first direction and connected in parallel with a second controllable semiconductor (20) in a second direction which is opposite to the first direction, and the dc power source (3) comprises a control unit (21) configured to bypass a failed switch (7, 9, 11, 13) by triggering the forward biased of the first (16) or second (20) controllable semiconductor connected to the failed switch (7, 9, 11, 13) in case a fault in the switch (7, 9, 11, 13) is detected
    • 一种用于高电压电力设备的直流电源,所述直流电源包括包括串联连接的多个直流电源单元的一个或多个串,以及被配置为连接和断开所述串的开关。 这些开关是分布在每个串的电源单元之间的固态开关,并且串中的所有固态开关被布置成使得它们同时导通和截止。 每个开关在第一方向上与第一可控半导体并联连接,并且在与第一方向相反的第二方向上与第二可控半​​导体并联连接,并且直流电源包括配置成绕过故障的控制单元 在检测到开关故障的情况下,通过触发连接到故障开关的第一或第二可控半​​导体的正向偏置来切换。