An Improved Voltage-Type Grid-Connected Control Strategy for Compensating Unbalanced Voltage

Control strategy of clustered micro‐grids for grid voltage unbalance compensation without communications

“…Voltage‐unbalance is one of the most harmful disturbance in the power grid, which is mainly caused by asymmetry of line impedances, uneven distribution of single‐phase loads as well as various grid faults. Voltage‐unbalance increases the risk of insulation failure of the power lines, and results in over voltage, over current or power pulsations in electric equipment, which endangers the safety of the power grid as well as the electric facilities [1–3].…”