摘要
针对频繁发生的电网电压暂降问题,研究了一种基于模糊情感智能算法的动态电压恢复器。在以三单相H桥结构为动态电压恢复器拓扑核心的基础上,具体分析了情感智能控制算法,并将其应用于动态电压恢复器系统。为进一步提升动态电压恢复器补偿性能,引入模糊算法对情感智能控制器中的固定权值学习率进行调节,实现了控制器参数的优化,提高了动态电压恢复器的补偿响应速度及补偿精度。搭建MATLAB/Simulink仿真模型,对所提模糊情感智能算法进行验证,仿真结果表明,与基于无模糊情感智能算法及基于简化情感智能算法的动态电压恢复器相比,基于模糊情感智能算法的动态电压恢复器响应速度更快,补偿精度更高,并且具有较好的负载适应性及三相不平衡跌落补偿能力。
Aiming at the frequently occurring power grid voltage sag problem,a dynamic voltage restorer based on fuzzy emotional intelligent algorithm is studied.The main topological structure of dynamic voltage restorer is proposed,and the emotional intelligence control algorithm is specifically analyzed and applied to the dynamic voltage restorer system.In order to further improve the dynamic voltage restorer compensation performance,the fuzzy algorithm is introduced to adjust the fixed weight learning rate in the emotional intelligent controller,which realizes the optimization of the controller parameters and improves the compensation response speed and compensation accuracy of the dynamic voltage restorer.MATLAB/Simulink simulation model is built to verify the proposed fuzzy emotional intelligence algorithm.Compared with the dynamic voltage restorer based on the emotional intelligence algorithm,the dynamic voltage restorer based on the fuzzy emotional intelligence algorithm has faster response speed and higher compensation accuracy,and has good load adaptability and three-phase unbalanced drop compensation capabilities.
作者
李永祥
李梦达
王洋
马梦琳
LI Yongxiang;LI Mengda;WANG Yang;MA Menglin(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)
出处
《燕山大学学报》
CAS
北大核心
2022年第4期345-352,共8页
Journal of Yanshan University
基金
上海市科学技术委员会科研项目(17DZ1201200)
国家自然科学基金青年基金资助项目(62003206)。
关键词
动态电压恢复器
电压暂降
情感智能算法
模糊控制
dynamic voltage restorer
voltage sag
emotional intelligent algorithm
fuzzy control
