Title: Power quality enhancement in hydroelectric-solar PV-based hybrid system by exploiting CPD

Authors: Riaz K. Israni; Chiragkumar Parekh

Addresses: Department of Electrical Engineering, Faculty of Technology, RK University, Rajkot, Gujarat, India ' Department of Electrical Engineering, Faculty of Technology, RK University, Rajkot, Gujarat, India

Abstract: Renewable energy (RE)-based electrical power generation is most admired and cost-effective in the current scenario. However, the power quality (PQ) of the RE-based power system is not superior due to its unpredictable inputs and nonlinear load interconnection through the main grid. The poor PQ in the power system is harmful to all electrical equipment and reduces the life of electrical appliances. To trim down this PQ issue custom power devices (CPDs) are most apposite. In this research article, a small hydroelectric-solar PV-based hybrid scheme is used and it is interconnected with the fixed nonlinear load. To boost the power quality in the proposed scheme, one of the CPD [i.e., unified power quality conditioner (UPQC)] is used. Moreover, this research work diminishes harmonic distortions generated in the output current and voltage waveform of the proposed scheme. The voltage stability and transient state stability during various fault conditions are also enhanced in the same scheme. The entire proposed work is proven through modelling and MATLAB simulations.

Keywords: renewable energy system; nonlinear load; unified power quality conditioner; UPQC; harmonic distortion; voltage stability; transient stability.

DOI: 10.1504/IJSGGC.2024.140417

International Journal of Smart Grid and Green Communications, 2024 Vol.2 No.3, pp.231 - 248

Received: 19 Apr 2023
Accepted: 26 Dec 2023
Published online: 07 Aug 2024 *

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