Thyristor converter system with higher harmonics suppression.

摘要

A semi-conductor bridge converter for converting an AC power into a DC power with suppression of the higher harmonics generation comprises: semi-conductor converter circuit 7, control circuit 5A, and instrument transformers 40 through 42 and 80 and 81 for measuring the voltages and the currents at the source and the load side at node 4. On the basis of the outputs of these transformers, the control circuit 5A controls the the control delay angle of the thyristers of the semi-conductor converter circuit 7 such that the generation of the higher harmonics contents thereat is reduced minimum seen from the power system side.