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PI Controlled Three-phase Shunt Active Power Filter for Power Quality Improvement

机译：PI控制的三相并联有源电力滤波器，用于改善电能质量

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摘要

The simulation and experimental study of proportional integrator (PI) controlled DC bus voltage of three phase shunt active power filter (APF) to improve power quality by compensating harmonics and reactive power required by nonlinear load is proposed. The compensation process is based on sensing mains currents only, an approach different from conventional methods, which usually require harmonics or reactive volt-ampere values of the load. The non-sinusoidal mains voltage problem is resolved by using phase locked loop (PLL) system. Pulse width modulation (PWM) signal generation is based on hysteresis control comparators to obtain the switching signals.u Various simulation and experimental results are presented under steady state and transient conditions.
机译：为了补偿非线性负载所需要的谐波和无功功率，改善三相质量的三相并联有源电力滤波器（APF）的比例积分器（PI）控制的直流母线电压，进行了仿真和实验研究。补偿过程仅基于感测市电电流，此方法不同于常规方法，该方法通常需要负载的谐波或无功伏安值。通过使用锁相环（PLL）系统解决了非正弦电源电压问题。脉冲宽度调制（PWM）信号的产生是基于磁滞控制比较器来获得开关信号的。u在稳态和瞬态条件下给出了各种仿真和实验结果。

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