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Control Strategy For Active Power Filter Based On P-Q Theory Under Non-Ideal Mains Voltages

机译:基于P-Q理论在非理想电源下的P-Q理论的控制策略

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Harmonics on the electrical system is a disturbance that causes the waveform of currents and or voltages are distorted. Mitigation of harmonics needed to reduce the negative impacts. Active power filter (APF) is one method to reduce harmonic waves, which injects the opposite waveform with harmonic wave. P-Q Theory is used to calculate the reference current to compensate harmonics. But, P-Q Theory has weakness if applied under non-ideal mains voltage. Phase Lock Loop (PLL) is used to normalization the non-ideal main voltage before calculate the reference current. Based on the results of simulation and analysis show the effectiveness of the control strategy being used.
机译:电气系统的谐波是导致电流波形的干扰,或者电压扭曲。减轻减少负面影响所需的谐波。有源电力滤波器(APF)是减少谐波波的一种方法,该方法注入了谐波波的相对波形。 P-Q理论用于计算参考电流以补偿谐波。但是,如果在非理想电源电压下施用,P-Q理论具有弱点。相位锁环(PLL)用于在计算参考电流之前归一化非理想主电压。基于仿真结果和分析结果,显示了使用控制策略的有效性。

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