Voltage unbalanced compensation using dynamic voltage restorer based on supercapacitor

► Development of a three phase four wire based on supercapacitor as energy storage. ► Simulation results show effectiveness for the compensation of voltage disturbances. ► Effective in mitigating voltage unbalance in electrical distribution system. ► Supercapacitor as energy storage for real power during voltage injection process. ► Tested under unbalanced voltage disturbances condition.