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Four switch three phase active filter with reduced current sensors

机译:四个开关三相有源滤波器,电流传感器减小

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This paper presents an active filter with reduced numbers of power switches and current sensors. The power circuit is a four-switch voltage source topology with a self-controlled DC bus. Two power switches are eliminated, the third phase being connected to the capacitor center tap. Harmonic compensation is achieved by forcing the line current to be sinusoidal and no harmonic current extraction is therefore required. The proposed the algorithm is robust and there are no spikes in the line current. The active filter operates effectively in the presence of unbalanced and distorted AC mains. Simulation and experimental results confirm the feasibility of the proposed filter.
机译:本文介绍了一个有源滤波器,电源开关和电流传感器数量减少。电源电路是具有自控直流总线的四开关电压源拓扑。消除了两个电源开关,第三阶段连接到电容中心点击。通过强迫线电流是正弦的电流来实现谐波补偿,因此不需要谐波电流提取。该算法的提议是坚固的,线电流中没有尖峰。有源过滤器在不平衡和扭曲的AC电源存在下有效地操作。仿真和实验结果证实了所提出的过滤器的可行性。

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