In the distribution network connected with high-proportion photovoltaic(PV),a double-layer optimization method is proposed by combining voltage var control(VVC)devices with battery energy storage systems(BESS),which can realize the most optimal location and capacity determination and real-time scheduling.The method minimizes the energy demand through the cooperative operation of multiple VVC devices and BESS.The outer layer is to select the location and capacity of BESS,and the inner layer is to determine the active and reactive power distribution of PV inverter and BESS inverter,as well as the opera-tion settings of VVC devices.It is verified on IEEE-33 bus system.The results show that the method not only reduces the voltage out of limit,but also effectively reduces the system energy demand.
关键词
光伏/电压无功控制/电池储能系统/双层优化/调度
Key words
photovoltaic/voltage var control/battery energy storage system/double-layer optimization/scheduling
维普
万方数据