This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性，文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
RESULTS: The total effective rates were 90% for Pir and 77% for Ind (P<0.05).
结果：总有效率吡罗昔康组为90％，吲哚美辛组为77％（P＜0．05）。
RESULTS: The total effective rates were 90% for Pir and 77% for Ind (P<0.05).
结果：总有效率吡罗昔康组为90％，吲哚美辛组为77％（P＜0．05）。
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