Abstract
Abstract Power quality is a major concern nowadays due to extensive use of smart controllers based power system equipment. These controlled load behaves with nonlinear characteristics. It introduces distortions in source voltage and source current at the point of common coupling (PCC). The distortions are propagated throughout the system and affects performance characteristics of all other loads connected to the same point of common coupling. Hence mitigation of power quality issues is essential to maintain good power quality at the point of common coupling. This paper deals with implementation of unified power quality conditioner (UPQC) to compensate for power quality issues voltage sag, voltage harmonics and current harmonics. UPQC is controlled by an exponential composition algorithm (ECA), which is proposed by the author. The performance of UPQC is examined with a nonlinear load and simulation studies using MATLAB/Simulink verify the satisfactory performance of UPQC.
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