| 摘要 |
<p>The invention relates to a converter provided with a resonant circuit (16), which converter comprises a control device (24) adapted, in connection with the effectuation of a commutation process, to send control signals at different instants in a given sequence to the current valves (2, 3) and auxiliary valve (18) that are taking part in the commutation process. According to the invention, the control device (24) is, in connection with the effectuation of a commutation process, adapted to determine the time intervals between said instants on the basis of estimated values of the durations of the partial processes included in the commutation process, said durations being estimated with the aid of a measured value of the phase current (iph). The invention also relates to a method for controlling such a converter.</p> |
