To address the issue of bus voltage oscillations caused by load fluctuations and constant power loads in a DC microgrid system with multiple battery energy storage units,a consensus control method based on fixed-time sliding mode is proposed.First,a mathematical model of energy storage in the DC microgrid system is established,which includes constant power loads and energy storage units.Next,the average bus voltage is obtained using a consensus algorithm.Then,a fixed-time sliding mode controller is designed,and the system stability is analyzed.Finally,simulations are conducted using a DC microgrid system that includes constant power loads and multiple battery energy storage units.The results show that the proposed control method demonstrates better robustness and reliability in dealing with bus voltage instability caused by load fluctuations,compared to traditional methods.
关键词
直流微电网/恒功率负载/一致性算法/固定时间滑模控制
Key words
direct-current microgrid/constant power load/consistency algorithm/fixed-time sliding mode control
维普
万方数据