摘要
降低混合储能系统的功率波动,可以提高系统运行安全性和稳定性,为此提出一种超级电容混合储能系统功率波动控制方法。建立蓄电池SOC数学模型,分析储能设备在混合储能系统中的充放电功率和SOC状态;通过低通滤波方法确定储能设备在系统中的功率参考值,设计模糊神经PID控制器,在模糊神经PID控制器的控制规则下,根据超级电容和蓄电池的功率参考值实现混合储能系统的功率波动控制。仿真结果表明,采用所提方法对超级电容混合储能系统控制后,系统的功率波动率降低,控制结果较为合理。
Reducing the power fluctuation of hybrid energy storage system can improve the safety and stability of system.In this paper,a method of controlling the power fluctuation of ultracapacitor hybrid energy storage system was presented.At first,a mathematical model for battery SOC was built.And then,the charging and discharging power and SOC state of the energy storage equipment in a hybrid energy storage system were analyzed.Moreover,low-pass filtering method was adopted to determine the power reference value of energy storage equipment in the system.Meanwhile,a fuzzy neural PID controller was designed.Under the control rules of fuzzy neural PID controller,the power fluctuation control of the hybrid energy storage system was achieved based on the power reference value of ultracapacitor and battery.Simulation results prove that the proposed method reduces the power fluctuation of the ultracapacitor hybrid energy storage system,and the control results are more reasonable.
作者
张媛
智泽英
石昊
ZHANG Yuan;ZHI Ze-ying;SHI Hao(Department of Electrical and Control Engineering,Shanxi Institute of Technology,Yangquan Shanxi 045000,China;Department of Electronic Information Engineering,Taiyuan University of Science and Technology,Taiyuan Shanxi 030024,China)
出处
《计算机仿真》
2024年第3期93-97,共5页
Computer Simulation
关键词
超级电容
蓄电池
功率波动控制
混合储能系统
控制器
Ultracapacitor
Battery
Power fluctuation control
Hybrid energy storage system
PID controller
