Improving of Power Quality in Distribution Systems with UPQC Under Non-Linear Load Condition and Distorted Source

This paper discusses the application of unified power quality conditioner (UPQC) for improving power quality of a system supplying   non-linear and induction motor loads. Unified power quality conditioner is one of the major custom power solutions that are capable of mitigating the effect of supply voltage sag at the load end or the point of common coupling. It also prevents load current harmonics  from entering the utility and corrects the input power factor of the load. The UPQC not only can compensate for current and voltage  harmonics but also can compensate for reactive power of distribution system. Simulated results show the ability of the proposed   method to obtain the harmonic contents of voltage and current independently.

Reza Rahnavard
Seyed Hossein Hosseini

Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran.
Azarbyjan Regional Electric Power Company, Tabriz, Iran.

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