Coordinated active and reactive power optimization considering load characteristics for active distribution network

Abstract

Voltage sensitive loads are extremely susceptible to voltage fluctuations, resulting in power system safety issues and economic losses. Due to the load component of voltage sensitive loads being changed at different times, a voltage sensitive load model including the time characteristics is proposed. To improve the voltage distribution in the active distribution network (ADN), the linearized active and reactive power coordinated optimization model for minimizing the operational cost (including the fluctuating cost of sensitive loads) is established. Finally, the simulation on the IEEE 33-bus system demonstrates that the proposed control strategy can effectively stabilize the bus voltage of the sensitive load and reduce the operational costs of the ADN.