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Special Issue Article Open Access
The renewable energy sources play an important role in electric power generation with growing environmental concerns. The inter connection of renewable energy sources are incorporated using power electronic converters, with the aim of improving power quality at the Point of Common Coupling (PCC). A novel idea where a STATCOM is used innovatively as i) a load reactive power compensator ii) an interface unit between the grid and renewable energy source, and iii) Voltage regulator. A controller unit is proposed for the STATCOM based on Instantaneous Reactive Power Theory (IRPT) control algorithm by which reactive power compensation and power factor correction is done and also real power support is provided by renewable energy source through STATCOM. The performance of the algorithm is compared with the Synchronous Reference Frame (SFR) algorithm to achieve the above objectives. The STATCOM unit with SRF algorithm provide better performance with input power factor of 0.9549 and source voltage and current THD of 0.5722, 0.544 respectively.