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首页> 外文会议>2013 International Conference on Circuits, Power and Computing Technologies >Fuzzy based unified power quality conditioner for power quality improvement
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Fuzzy based unified power quality conditioner for power quality improvement

机译：基于模糊的统一电能质量调节器，用于改善电能质量

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摘要

Non-linear loads are normally affected by power quality (PQ) problems. Harmonic currents create system resonance, capacitor overloading, decrease in efficiency. Voltage sags are commonly occurring power quality problems in electrical systems. The unified power quality conditioner (UPQC) is one of the FACTS controllers used for mitigating the effect of voltage sags. The series compensator in the UPQC is for quadrature type of voltage injection. So that at steady state the series compensator never consumes active power. The proposed method introduces a low power rating series compensator that injects the voltage which perfectly compensate the power quality problem of the system. The addition of fuzzy logic controller with the conventional UPQC reduces the voltage sag levels in the output voltage and also improves the power factor. The control circuit is designed using fuzzy logic controller and simulated using MATLAB/SIMULINK.
机译：非线性负载通常受电能质量（PQ）问题的影响。谐波电流会导致系统谐振，电容器过载，效率降低。电压骤降​​是电气系统中经常发生的电能质量问题。统一电能质量调节器（UPQC）是用于减轻电压骤降影响的FACTS控制器之一。 UPQC中的串联补偿器用于正交类型的电压注入。这样，在稳态下，串联补偿器就不会消耗有功功率。所提出的方法引入了低功率额定串联补偿器，该补偿器注入电压可以完美补偿系统的电能质量问题。与常规UPQC一起添加模糊逻辑控制器可以降低输出电压中的电压骤降水平，并可以提高功率因数。控制电路使用模糊逻辑控制器设计，并使用MATLAB / SIMULINK进行仿真。

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