摘要
针对微电网下垂控制双闭环结构控制难的问题,本研究以直流微电网系统为研究对象,设计电压电流双闭环控制结构,对电流内环采用PI控制,将电流内环整定成Ⅰ型系统,实现电流的快速跟随。电压外环采用模糊PI控制器,并根据电压反馈值来实现对PID参数的实时调节。基于上述设计原理,借助Simulink仿真软件对下垂控制系统进行综合设计,仿真试验验证了基于模糊-PID控制策略的微电网电压电流双闭环下垂控制的有效性。
For the difficulty of double closed loop structure of microgrid droop control.In this study,with the DC micro grid system object,we design the voltage-current double closed-loop control structure,PI controller adopted for the current inner ring respectively,and the current inner ring is adjusted to an I type system to realize the rapid follow of the current.The voltage outer ring adopts the fuzzy PI controller and adjusts the PID parameters according to the voltage feedback value.Based on the above design principle,the droop control system is comprehensively designed by Simulink,and the effectiveness of double closed loop droop control system of Voltage-current in microgrid based on fuzzy-PID control strategy is verified by simulation experiment.
作者
闫宇豪
方愿捷
郑喆
石帆
耿榕嵘
吴昱倩
YAN Yuhao;FANG Yuanjie;ZHENG Zhe;SHI Fan;GENG Rongrong;WU Yuqian(Chaohu University,Industrial Process Control Optimization and Automation Engineering Research Center,Hefei 238000,China;Anhui China Longyang Power Group New Energy Development Co.,Ltd.,Hefei 238000,China)
出处
《河南科技》
2022年第12期7-12,共6页
Henan Science and Technology
基金
巢湖学院2021年度国家级大学生创新创业训练计划资助项目(202110380003)
巢湖学院2021年度学科建设质量提升工程项目(kj21gczx02)
巢湖学院本科生科研创新训练计划(kj21bskc05、kj21bskc07)。
关键词
下垂控制
双闭环
模糊PID
Ⅰ型系统
droop control
double closed loop
fuzzy-PID
I-type system
