现代电力2024，Vol.41Issue(3)：431-440,10.DOI:10.19725/j.cnki.1007-2322.2022.0286
基于改进粒子群优化权函数的直流微电网H∞控制策略
H∞ Control Strategy for DC Microgrid Based on Improved Particle Swarm Optimization Weight Function
摘要
Abstract
DC microgrids often contain constant power loads(abbr.CPLs),whose negative impedance characteristics can re-duce the stability of the system,causing DC bus voltages to fluctuate and even collapse.Therefore,firstly,a small-signal model of DC microgrid is established,and the influence of con-stant power load on system stability is analyzed using the root trajectory method;secondly,a hybrid sensitivity optimization-based voltage control strategy is proposed to improve the stabil-ity of the DC microgrid system,and an improved particle swarm optimization(abbr.PSO)algorithm is used to optimize the weight function and further improve the performance of the robust controller;finally,a Matlab/Simulnik simulation is used to verify the performance of the robust controller,and the simu-lation results show that the proposed robust controller reduces the bus voltage fluctuation and effectively improves the stabil-ity of the DC microgrid system.关键词
直流微电网/稳定性分析/母线电压/H∞控制/粒子群算法Key words
DC microgrid/stability analysis/bus voltage/H∞ control/particle swarm optimization分类
信息技术与安全科学引用本文复制引用
马文忠,王源航,高健壹,李维国,么旻蕊,黄建伟..基于改进粒子群优化权函数的直流微电网H∞控制策略[J].现代电力,2024,41(3):431-440,10.基金项目
国家自然科学基金项目(51777216) （51777216）
山东省自然科学基金项目(ZR2018MEE040,ZR2019MEE094).Project Supported by National Natural Science Foundation of China(51777216) （ZR2018MEE040,ZR2019MEE094）
Natural Science Foundation of Shandong Province(ZR2018MEE040,ZR2019MEE094). （ZR2018MEE040,ZR2019MEE094）
