Voltage control method based on three‐phase four‐wire sensitivity for hybrid AC/DC low‐voltage distribution networks with high‐penetration PVs

The increasing integration of distributed photovoltaics may further aggravate the over-voltage and three-phase unbalance issues low-voltage distribution networks with four-wire structures. voltage control method based on AC DC side power flow capability source converter in hybrid AC/DC is a solution for improvement above quality issues. In this paper, an accurately improved sensitivity matrix calculation considering shunt admittance ABCD parameters proposed structure. presented feeders consider influence coupling effect among phases neutral line calculation, which makes simple. Then, power-voltage converters matrices constraints from networks, can effectively address unbalanced Simulations are performed to verify method.