两种高频交流环节AC/AC变换器比较研究

新颖的高频交流环节AC/AC变换器,包括基于Forward变换器的电压源型和基于Flyback变换器的电流源型两种。首次对两种高频交流环节AC/AC变换器的电路结构与拓扑、控制策略、原理特性、关键电路参数设计准则、原理样机等进行了深入的比较研究,获得了重要研究结论。相对于电压源型,电流源型变换器具有电路拓扑更简洁、输入电压范围更宽、输出波形质量更高、可靠性更高、成本更低、变换效率略低和适用于小功率变换场合等特点。两种高频交流环节AC/AC变换器的比较研究,为实现新型电子变压器、正弦交流稳压器和交流调压器提供了关键的技术依据。

Comparison of Two Kinds of AC/AC Converters With High Frequency AC Link

Novel AC/AC converters with high frequency ac link are composed of two kinds of AC/AC converters,which are voltage mode based on Forward converter and current mode based on Flyback converter.The circuit configuration and topology,control strategy,principle characteristics,design criteria of the key circuit parameters,and principle prototype of two-kinds converters are deeply and comparatively investigated firstly in this paper,and important conclusions are obtained.Compared with the voltage mode converters,the current mode converters have the characteristics such as more concise circuit topologies,wider range of the input voltage,higher quality of the output waveforms,higher reliability,lower cost,lower conversion efficiency and more applicability to the small power conversion fields.Research on the comparisons of two kinds of converters supplies the key technical foundation on new type electronic transformers,regulated sinusoidal ac power supplies,and ac regulators.