【摘要】 对逆变器的几种限流方法进行分析,最后给出一种瞬时限流加上电流环限流方案,使三相逆变器在过载、突加冲击性负载甚至在短路状态下都能很好的限流。这种方法的响应速度快,而且在长时间短路情况下电压和电流的波形不会发生畸变。这个方案已经成功的在50Hz,20kVA的三相逆变电源上得到了验证。更多还原

【Abstract】 Several current limiting strategies is analyzed.Finally,the best current limiting strategy is proposed to protect the inverter when impulse loads are loaded.This strategy uses instantaneous current limiting with feedback current,which can quickly limit current and make the wave of voltage and current no distortion when long term shortcircuit happened.It has been verified successfully in a(16 kW),(50 Hz) 3-phases inverter.更多还原