The current source ac / ac converters with high frequency ac link have the advantages such as simple topology , two - stage power conversions , bidirectional power flow , high frequency electrical isolation , good line current waveform , strong load adapting ability and suit for low power conversion fields . the correction and advance of these converters are verified by the simulation and test results 这类换器具有电路拓扑简洁、两级功率变换( lfac hfac lfac ) 、双向功率流、高频电气隔离、网侧电流波形好、负载适应能力强、适合于小功率变换场合等特点。
