Soft-switched high-frequency power converters for alternative energy systems

随着世界范围内能源需求的增加以及环境问题的关注，集成到现有电网或利用混合交流和直流总线的微电网中的替代能源变得流行，以确保增加的电能安全性。这些能源的输出变化很大，包括一些操作限制，例如：与风力涡轮机一起使用的永磁同步发电机（PMSG）产生变化的电压和频率的交流输出;用于海浪能量转换的线性同步发电机具有波动的功率，其具有变化的幅度和频率输出电压波形;燃料电池产生宽变化的低压直流（22至41 V），其对负载变化具有缓慢的瞬态响应，同时它们对涟漪电流非常敏感。

World-wide increased energy demand with environmental concerns, alternative energy sources either integrated to the existing power grid or in a micro-grid utilizing hybrid ac and dc buses are becoming popular to ensure increased electrical energy security. The outputs of these energy sources vary widely including some operational limits, e.g.: permanent magnet synchronous generators (PMSG) used with wind turbines generate ac output of varying voltage and frequency; linear synchronous generators used in sea wave energy conversion have fluctuating power with varying amplitude and frequency output voltage waveform; fuel cells generate wide varying low voltage dc (22 to 41 V) having slow transient response for load changes while they are very sensitive to ripple currents.