| 摘要 |
The invention relates to a device (1) for the transmission of a high-voltage direct current, comprising a supply connection terminal (4) for connecting an alternating current network (2) that supplies energy and a consumer connection terminal (5) for connecting a multi-phase consumer (3), whereby a rectifier (6) is connected downstream of the supply connection terminal (4), said rectifier being connected to an inverter (9) by means of a direct-current intermediate circuit (8) that comprises a smoothing element (12) and said inverter being connected on the alternating current side to the consumer connection terminal (5). The rectifier (6) and the inverter (9) comprise thyristor valves (9a+, 9b+, 9c+; 9a-, 9b-, 9c-) and a control unit (14) triggers the thyristor valves (9a+, 9b+, 9c+; 9a-, 9b-, 9c-) of the inverter (9) in accordance with a clock pulse. The aim of the invention is to provide a device that enables power to be supplied to passive consumers such as stand-alone networks. To achieve this, the control unit (14) is connected to a clock pulse generator that produces the clock pulse, said generator having its own energy supply, capacitive impedances (13) for commutating the current are connected downstream of the inverter (9) in the direction of the power flow, or the multi-phase consumer (3) has a capacitive impedance that is sufficient for the commutation of the current. |
