Improvement of Power Quality Using a Hybrid Unified Power Quality Conditioner with Distributed Generation

Power quality disturbances such as voltage sags, swells, harmonics, and short interruptions can significantly impact the operation of sensitive electrical devices. This paper proposes a hybrid Unified Power Quality Conditioner (UPQC) integrated with Distributed Generation (DG) to improve power quality in distribution systems. The system combines series and shunt Compensator with renewable energy inputs to stabilize voltage, minimize harmonic distortion, and enhance supply reliability. Simulation results and model of a 50 KVA grid is considered. The Extensive simulation results have carried out in PSIM software based under various loading and fault scenarios confirm the system’s effectiveness in mitigating power disturbances and supporting green energy integration. The hybrid approach demonstrates enhanced voltage regulation and total harmonic distortion (THD) reduction, making it suitable for the result produced by the proposed method it is compared with the conventional UPQC method.