The energy storage system is the main control unit,and is used to smooth power fluctuations of isolated DC micro-grid.Its main parameter is the state of charge(SOC).A SOC balancing control strategy of energy storage system is designed for isolated DC microgrid herein.The SOC balancing control strategy of energy storage system adjusts the sag coefficient in real time according to the SOC,controls the power of charge and discharge,and achieves SOC balance.The SOC balancing control strategy of energy storage system is the main control unit to suppress power fluctuations,distributes power to the distributed power supply according to the SOC of the energy storage system,achieves power balance in the microgrid,and controls the voltage fluctuation deviation of the DC bus within 4.5％.
关键词
孤立直流微网/储能系统/荷电状态/均衡控制策略
Key words
isolated DC microgrid/energy storage system/state of charge/balancing control strategy
维普
万方数据