A SOLUTION TO ENHANCE ELECTRICAL POWER QUALITY FOR INDUSTRIAL LOADS

Abstract

This paper proposes a novel distributed compensation method with centralized control for harmonic
filtering and phase balancing, aiming to enhance power quality in power grids. The proposed solution
is particularly well-suited for industrial applications employing large three-phase induction motors.
Through a comprehensive analysis of power quality factors and voltage enhancement strategies, the paper
advocates for a distributed compensation approach with centralized control, emphasizing concomitant
improvements in motor performance within the system. The proposed compensation system comprises
distributed compensators at each load, coordinated by a central compensator governed by a single
controller. The paper outlines a strategy for enhancing voltage quality that utilizes a combination of
phase balancing, high-order harmonic filtering, and hybrid reactive power compensation. This strategy
aims to optimize total active power losses across the entire facility and elevate the system’s voltage
quality. The effectiveness and applicability of the proposed solution are validated through simulation
and experimental results.