Load compensation with hysteresis current controlled SAPF under unbalanced mains voltage and nonlinear load conditions

K. Karthi, R. Radhakrishnan, J. Baskaran, Louis Sam Titus
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引用次数: 2

Abstract

The Shunt Active Power Filter (SAPF) plays a major role in field of load compensation for mitigating harmonics, load balancing and reactive power compensation in distribution power network. This paper represents a Shunt Active Power Filter for the compensation of load under unbalanced mains voltage and nonlinear mixed load conditions in distribution power network. The described shunt active power filter is used to achieve reactive power compensation, neutral current reduction as well as to achieve the unity power factor. An instantaneous symmetrical components theory has been used to generate reference current for power electronic switches. A five level diode clamped voltage source converter (VSI) based shunt active power filter has been utilized for the load compensation. A hysteresis current controller has been adapted for VSI based SAPF. The system performance has been investigated using MATLAB/SIMULINK simulation tool with and results show that supremacy of the SAPF on load compensation.
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在市电电压不平衡和非线性负载条件下,负载补偿滞后电流控制的SAPF
并联型有源电力滤波器在配电网谐波抑制、负载均衡和无功补偿等负荷补偿领域发挥着重要作用。本文提出了一种用于配电网中市电电压不平衡和非线性混合负荷情况下负荷补偿的并联型有源滤波器。所述并联型有源电力滤波器用于实现无功补偿、中性点电流减小以及统一功率因数。利用瞬时对称分量理论产生了电力电子开关的参考电流。采用基于并联有源滤波器的五电平二极管箝位电压源变换器(VSI)进行负载补偿。提出了一种基于VSI的磁滞电流控制器。利用MATLAB/SIMULINK仿真工具对系统性能进行了研究,结果表明SAPF在负载补偿方面具有优势。
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