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

在世界范围内，由于环境问题，能源需求增加，替代能源要么集成到现有电网，要么在利用混合交流和直流总线的微电网中，以确保增加的电力能源安全正变得流行。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）产生不同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功率随幅值和频率的变化而波动；燃料电池产生宽变化的低压直流电（22至41 V），对负载变化的瞬态响应缓慢，而对纹波电流非常敏感。

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.