Voltage Unbalance Mitigation by Novel Control of BESS Single–phase Inverters

Abstract

A voltage unbalance compensation method using three single-phase battery energy storage systems (BESSs) is proposed in this paper. A novel control strategy based on orthogonal signal generation is presented to regulate active and reactive power injection from the BESS inverters. A modified version of the 'IEEE 13 node' benchmark three-phase distribution system is built in MATLAB / Simulink and three case studies are illustrated to verify the effectiveness of the proposed compensation method.