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首页> 外文期刊>Electric power systems research >Fuzzy logic controller for three-level shunt active filter compensating harmonics and reactive power
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Fuzzy logic controller for three-level shunt active filter compensating harmonics and reactive power

机译：三级并联有源滤波器的模糊逻辑控制器，用于补偿谐波和无功功率

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In this paper, the three-level inverter is used as a shunt active power filter, making use of the multilevel inverter advantages of low harmonic distortion, and reduced switching losses. This PWM inverter is employed as shunt APF compensating reactive power and suppresses harmonics drawn from a nonlinear load. Most previously reported three-phase active power filters are based on two-level inverters with conventional controllers requiring a complex and a complicated mathematical model. In order to overcome this problem a fuzzy logic controller applied and extended to a three level shunt APF is proposed.rnIn this paper, fuzzy logic control algorithm is proposed for harmonic current and inverter dc voltage control to improve the performances of the three levels active power filters. The MATLAB Fuzzy Logic Toolbox is used for implementing the fuzzy logic control algorithm. The obtained results showed that, the proposed shunt active power filter controller have produced a sinusoidal supply current with low harmonic distortion and in phase with the line voltage.
机译：在本文中，三电平逆变器用作并联有源功率滤波器，它利用了低谐波失真和降低开关损耗的多电平逆变器的优势。该PWM逆变器用作补偿无功功率的并联APF，并抑制非线性负载产生的谐波。先前报告的大多数三相有源功率滤波器均基于两级逆变器，而传统控制器则需要复杂的数学模型。为了克服这个问题，提出了一种模糊逻辑控制器，并将其扩展到三级并联APF。rn本文针对谐波电流和逆变器直流电压控制提出了一种模糊逻辑控制算法，以提高三级有功功率的性能。过滤器。 MATLAB模糊逻辑工具箱用于实现模糊逻辑控制算法。所得结果表明，所提出的并联有源电力滤波器控制器产生了具有低谐波失真并且与线电压同相的正弦电源电流。

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