考虑功率回流区的单相单级隔离式AC-DC变换器改进调制策略

In this article, an improved modulation strategy for the single-phase single-stage isolated bidirectional ac-dc converter is proposed. The modulation of ac side cycloconverter is based on the unipolar idea to reduce the switching quantity and the ac side current ripple and provide the bidirectional current flow path. The dc side H-bridge converter is driven by the pulsewidth modulation signals coo...