摘要
通过对模糊PI控制算法、MPPT算法分析,并对变流器的控制策略进行推导,提出基于Fuzzy-PI控制策略,确定机侧以转速的偏差及其微分为输入,交轴电流为输出,风机达到最大功率跟踪效果;网侧变流器采用电压外环、电流内环双闭环控制策略。通过Simulink系统仿真,结果表明模糊PI控制系统能实现发电机的最大功率跟踪和单位功率因数运行,控制效果优于传统的PI控制策略。
The fuzzy PI control algorithm and MPPT algorithm were analyzed,and the control strategy of converter was deduced.Based on the fuzzy-PI control strategy,it was determined that the deviation and differential of rotating speed were the input and the cross-axis current was the output,so that the fan could achieve the maximum power tracking effect.The converter used two closed loop control strategies to control the external voltage loop and the internal current loop.Through Simulink simulation,the results show that the fuzzy-PI control system can realize the maximum power tracking and unit power factor operation of the generator,and its control effect is better than the traditional PI control strategy.
作者
蔡斌军
李朝旗
何雍
王田宇
CAI Binjun;LI Chaoqi;HE Yong;WANG Tianyu(School of Electrical and Information Engineering,Hunan Institute of Technology,Xiangtan 411101,China)
出处
《微特电机》
2023年第2期51-55,共5页
Small & Special Electrical Machines
基金
湖南省自然科学基金湘潭联合基金项目(2022JJ50111)。
关键词
风力发电系统
最大功率点跟踪
控制策略
模糊PI
wind power generation system
maximum power point tracking(MPPT)
control strategy
fuzzy PI
