Development of a shunt compensator for power flow balancing in a distribution-level microgrid with distributed generation units

A shunt compensator is developed in the paper for power flow balancing in a three-phase distribution-level microgrid with single-phase distributed generation units and loads. The symmetrical components decomposition of the three-phase currents in the microgrid is performed to derive a compensation scheme for the compensator. With the on-line compensation of the compensator, the power source offers balanced power flow. A three-phase, delta-connected, distribution-level static synchronous compensator (DSTATCOM) using multilevel cascade full H-bridge (FHB) converter is developed as the compensator. Computer simulation verifies the transient and steady-state compensation effects of the developed compensator.