摘要
针对微电网在孤岛运行状态下,其SPWM双闭环逆变器在传统模糊PID控制过程中存在的参数整定复杂且系统自适应不足等问题,提出了一种在传统模糊PID控制方法的基础上加入改进鸡群算法(improved chicken swarm optimization,ICSO)的改进模糊PID控制策略(ICSO-FUZZY-PID),通过ICSO优化传统模糊PID中的比例因子和量化因子,达到快速找到最优解的目的。将改进模糊PID控制策略应用到逆变器的电压环控制中,可以大幅度得提升逆变器输出电压的控制效果,减小逆变器输出功率的波动,更好地抑制逆变器间的环流。通过在MATLAB\\Simulink中搭建仿真模型进行实验,实验结果表明,基于ICSO的模糊PID控制策略应用于微网逆变器的SPWM双闭环控制中,可以使微网系统获得响应速度更快、控制精度更高、鲁棒性更强的动态和静态特性。
In order to solve the problems of complex parameter setting and insufficient system self-adaptive in traditional fuzzy PID control of SPWM double closed-loop inverter in islanded microgrid,an improved fuzzy PID control strategy based on traditional fuzzy PID control method and improved chicken swarm optimization(ICSO)is proposed,ICSO is used to optimize the scale factor and quantization factor of traditional fuzzy PID to find the optimal solution quickly.The improved fuzzy PID control strategy is applied to the voltage loop control of inverter,which greatly improve the control effect of inverter output voltage,reduce the fluctuation of inverter output power,and better restrain the circulating current between inverters.The simulation model is built in Matlab/Simulink,and the experimental results show that the fuzzy PID control strategy based on ICSO is applied to SPWM double closed-loop control of microgrid inverter,which can make the microgrid system obtain dynamic and static characteristics with faster response speed,higher control accuracy and stronger robustness.
作者
原天生
于少娟
杨杰豹
彭晓宇
白伟
张梦源
YUAN Tian-sheng;YU Shao-juan;YANG Jie-bao;PENG Xiao-yu;BAI Wei;ZHANG Meng-yuan(Taiyuan University of Science&Technology,Taiyuan 030024,China;Shanxi University School of Business,Taiyuan 030031,China)
出处
《太原科技大学学报》
2023年第5期428-433,共6页
Journal of Taiyuan University of Science and Technology
基金
山西省重点研发计划(201803D121106)
太原科技大学大学生创新创业训练计划(XJ2020030)。
