A New Voltage Control Strategy to Improve Performance of D-Statcom in Electrical Grid

The proposed project introduces a new voltage control strategy for a distribution static compensator (DSTATCOM) to enhance its performance in electric grid applications. The control scheme combines two DSTATCOM operation methods, leveraging power factor and voltage magnitude as degrees of freedom to mitigate voltage and current harmonics, balance source currents, improve power factor, regulate voltage during sags and swells, reduce inverter losses, and control load power for improved energy conservation. This advanced DSTATCOM control outperforms conventional operation across all scenarios. Furthermore, the DSTATCOM utilizes a multilevel H-bridge voltage source inverter (VSI) topology. MATLAB/Simulink simulations validate the viability and advantages of the implemented DSTATCOM configuration over conventional topologies Index Terms—Distribution static compensator (DSTATCOM), multilevel inverter (MLI), cascaded H-bridge, passive filter, power quality (PQ).