微特电机 ›› 2023, Vol. 51 ›› Issue (2): 51-55.

• 驱动控制 • 上一篇    下一篇

基于Fuzzy-PI的直驱永磁风力发电系统MPPT控制

蔡斌军, 李朝旗, 何雍, 王田宇   

  1. 湖南工程学院 电气与信息工程学院,湘潭 411101
  • 收稿日期:2022-10-18 出版日期:2023-02-28 发布日期:2023-03-01
  • 作者简介:蔡斌军(1975—),男,博士研究生,副教授,主要从事风电系统控制等方面的教学与科研工作。李朝旗(1997—),男,硕士研究生,主要研究方向为风力发电系统控制等。
  • 基金资助:
    湖南省自然科学基金湘潭联合基金项目(2022JJ50111)

Fuzzy-PI Based MPPT Control of Direct-Drive Permanent Magnet Wind Power Generation System

CAI Binjun, LI Chaoqi, HE Yong, WANG Tianyu   

  1. School of Electrical and Information Engineering, Hunan Institute of Technology,Xiangtan 411101, China
  • Received:2022-10-18 Online:2023-02-28 Published:2023-03-01

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。

关键词: 风力发电系统, 最大功率点跟踪, 控制策略, 模糊PI

Abstract: 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 currentwas 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.

Key words: wind power generation system, maximum power point tracking(MPPT), control strategy, fuzzy PI

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