基于串联谐振变换器模块和三相解折叠电路的隔离型双向并网三相AC-DC功率转换

Power-bidirectional converters are used to integrate energy storage with both dc and ac distribution grids. A modular bidirectional dc–dc converter system consisting of multiple dual-bridge series resonant converter (DBSRC) modules can be reconfigured to extend the system operating range. This paper proposes a modular three-phase ac–dc converter system by adding a line-frequency unfolder to series...