摘要
提出结合SOC与改进下垂控制的微电网优化控制策略,通过在传统下垂控制中加入交流信号,实现了直流微电网中分布式电源变换器的电流比例分配。结合SOC评估,提出改进的下垂控制,并利用传递函数理论得出大扰动稳定性标准。MATLAB/Simulink仿真显示,该方法能有效分配变换器输出电流。实验结果表明,该方案可将控制精度保持在±5%内,并提升系统稳定性与精度。
This article proposes an optimization strategy for microgrids that combines SOC and improved droop control.By adding AC signals to traditional droop control,the current proportional distribution of distributed power converters in DC microgrids is achieved.Based on SOC evaluation,propose improved droop control and use transfer function theory to derive large disturbance stability standards.MATLAB/Simulink simulation shows that this method can effectively allocate the output current of the converter.Experimental results show that this scheme can maintain the control accuracy of the dual EKF within±5%and improve system stability and accuracy.
作者
安晨
曾楚淳
任效煜
肖冬雪
AN Chen;ZENG Chuchun;REN Xiaoyu;XIAO Dongxue(Shaanxi University of Technology,Hanzhong 723000,China)
出处
《电工技术》
2025年第4期127-130,共4页
Electric Engineering
