| 摘要 |
FIELD: electricity.SUBSTANCE: invention is related to the method for discharge of intercondenser (C) of double-link valve voltage inverter (2), wherein the electric energy converter (4) mounted from the network side has switched power semiconductor devices (A1, ?, A6); it is intended to connect alternating-current network by means of the series circuit of preset charging contactor (VS) and preset charging resistance (R), transformer (T) and the main circuit breaker (HS) switched by the network contactor (NS). According to the invention the main circuit breaker (HS) and the network contactor (NS) are open, at that the preset charging contactor (VS) is closed, at that two diagonal opposed power semiconductor devices (A1, A4; A2, A3) of the electric energy converter (4) are switched on.EFFECT: method for discharge of intercondenser (C) of double-link valve voltage inverter (2) is obtained, wherein technical result lies in lack of need in additional structural components.2 cl, 2 dwg |
