基于电池储能系统的微电网功率平滑控制研究

Study on power smooth control of microgrid based on energy storage system

针对微电网中可再生能源接入导致发电输出功率波动大且随机性强的问题,提出一种基于电池储能系统的微电网功率平滑控制方法。该方法利用电池荷电状态的实测值为反馈,调节平滑控制方法的时间系数,有效避免了可再生能源接入引起的微电网功率波动,同时使储能电池的荷电状态保持稳定在标准范围内,提高电池的使用寿命。建立仿真模型验证了所述控制方法的有效性。

For the power supply problems of big fluctuation and strong randomicity caused by connecting renewable energies into microgrid,this paper proposes a power smooth control method of microgrid based on energy storage system. This method takes the measured values of battery state of charge( SOC) as feedback and adjusts the time factor of smooth control method,which could effectively avoid the big power fluctuation of microgrid,stabilize the energy storage batteries SOC in the standard range and improve the service life of battery. The effectiveness of this control method is verified by established simulation model.