河北大学学报(自然科学版) ›› 2018, Vol. 38 ›› Issue (1): 105-112.DOI: 10.3969/j.issn.1000-1565.2018.01.016

• • 上一篇    

三相四桥臂逆变器的复合控制

闫风1,黄丽华1,王辉2,澹台潇涵3,韩姣3,于伟4   

  • 收稿日期:2017-03-15 出版日期:2018-01-25 发布日期:2018-01-25
  • 通讯作者: 黄丽华(1963—),女,山东荣成人,河北农业大学教授,博士,主要从事配电系统及其自动化、人工智能方面的研究.E-mail:bdhlhhlh@163.com
  • 作者简介:闫风(1992—),女,河北宁晋人,河北农业大学在读硕士研究生. E-mail:1330039049@qq.com
  • 基金资助:
    河北农业大学理工基金资助项目(LG201502);国家电网公司科学技术项目

Composite control method for three-phase four-leg inverter

YAN Feng1,HUANG Lihua1,WANG Hui2,TANTAI Xiaohan3,HAN Jiao3,YU Wei4   

  1. 1.College of Mechanical and Electrical Engineering, Agricultural University of Hebei, Baoding071000, China; 2.Tiandaqiushi Power New Technology Corporation of Tianjin, Tianjin 300384, China; 3.Business and Electricity Department, State Grid Company of Heibei Baoding, Baoding 071000, China; 4.Nanrui Electric Research Huayuan Electric Power Technology Company ofBeijing, Beijing 102200, China
  • Received:2017-03-15 Online:2018-01-25 Published:2018-01-25

摘要: 随着风能、太阳能等清洁能源在电网中的应用,逆变器不可或缺.电网中的谐波和不平衡负载影响电网的电能质量,因此逆变器的控制策略及控制方法尤为重要.为提高电能质量,以三相四桥臂逆变器为模型,提出了比例积分PI、矢量谐振(vector resonant,VR)控制和重复(repetitive control,RC)控制相结合的复合控制方法.其中比例积分控制器能够抑制直流分量的干扰;矢量谐振控制器能够抑制特定频率且含量较高的谐波;重复控制器抑制多次且含量较低的谐波并减小稳态误差.仿真结果验证了所提控制方法能有效提高逆变器输出电压电流波形质量.

关键词: 逆变器, 矢量谐振, 重复控制, 谐波

Abstract: In the application of wind, solar and other clean energy in the grid,inverter is indispensable.Harmonic wave and unbalanced load affect the output of the inverter, the performance of the inverter control strategy directly affects the power quality.By combining proportional integral(PI), vector resonance(VR)control and repetitive control(RC),the compound control method is proposed.PI restrain the interference of DC component, the VR controller suppresses the low harmonics.RC suppresses the higher harmonics and reduce the static error, and improve the waveform qualities of converter output voltage and current.The simulation results verify the effectiveness of the proposed control method.

Key words: converter, vector-resonant(VR), repetitive control(RC), harmonic wave

中图分类号: