Analysis of Power Quality in a Hybrid Power System

Abstract

Renewable energy sources (RES) play a significant role to tack a climate change, reduce an energy cost, improve a power reliability. However, they will be effect on the power quality (PQ) of production energy when it is connected with utilized grid because of their randomness generations, resulting in, voltage instability, fluctuations in frequency, harmonic distortion and low power factor. In this paper, PQ issues and their improvement methods, including; filters, Flexible Alternate Current transmission system devices, and classifying the control techniques; traditional, intelligent, and hybrid, are reviewed. In addition, a preliminary investigation on a Dynamic Static Compensator (DSTATCOM) device with a Proportional-Integral (PI), is conducted using a 25kV distribution networks of households and verified its capacity to correct PQ issues and provide voltage stabilization. The motivation of this review article was to allow research customers to understand PQ issues and solutions but also a starting part whereby comparison can be made on whether or not PI control was beneficial in the DSTATCOM, and sets a regulatory limit to conduct more intense and feasible solutions based on intelligent and hybrid systems.