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带孤岛效应检测的单周控制三相光伏并网逆变器 被引量:1

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摘要 单周控制具有结构简单、控制精度高、响应速度快等优点,本文详述了三相并网逆变器的单周控制模型,将一个周波分为六个区间,每个区间只有两个开关器件处在高频开关状态下,大大减小了器件的开关频率,降低了并网电流的谐波畸变率,实现了单位功率因数输出,同时有效的抑制了"孤岛"效应的产生。直流侧的Boost升压电路也采用单周控制,简化了电路,增强了实时性,最后通过仿真验证了此方法的正确性。
出处 《电源技术应用》 2008年第9期12-18,共7页 Power Supply Technologles and Applications
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