| 摘要 |
A voltage source converter (30) comprises: a converter arm (38,40) extending between two terminals (32,34,42), each terminal (32,34,42) being connectable to a or a respective electrical network (44,46), the converter arm (52,54) including a valve (58) that includes at least one module, the or each module being operable to selectively provide a voltage source; and a controller (62) programmed to selectively operate the valve (58) to clamp a voltage at either or both of the two terminals (32,34,42) and thereby operate the valve (58) as a current limiter to limit a selected current flowing in the converter arm (38,40) at or below a fixed or variable current threshold. |
