Robust predictive control of grid-connected voltage for LC filter type inverter

被引：0
|
作者：
Guo L. [1 ]
Li W. [1 ]
Li Y. [1 ]
Dou Z. [1 ]
Jin N. [1 ]
机构：
[1] College of Electric and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2022年 / 42卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Grid-connected inverter; Lumped disturbance; Model predictive control; Parameter-free; Ultra-local model;
D O I：
10.16081/j.epae.202204025
中图分类号：
学科分类号：
摘要：
In recent years, model predictive control has been widely used in two-level voltage source inverters to achieve grid-connected control. However, the conventional FCS-MPC(Finite Control Set-Model Predictive Control) has the problem of decreased prediction accuracy when the parameters are mismatched. For this reason, a parameter-free FCS-MPC method for robust predictive control of grid-connected voltage for LC filter type inverter is proposed. Firstly, the influence of parameter change on the grid-connected voltage predictive control of conventional LC filter type inverters is analyzed. Then based on the ultra-local model theory, the second-order ultra-local model of the LC filter type grid-connected inverter is established, and the calculation method of two lumped disturbances is studied. The calculation method eliminates the grid-side current sensor and saves the cost, and realizes parameter-free predictive control. Finally, the experimental results show that, compared with the conventional FCS-MPC method, the proposed parameter-free FCS-MPC method has better model predictive control characteristics. In the case of parameter mismatch, parameter-free FCS-MPC can still achieve better model predictive control performance, which verifies the effectiveness of the proposed method. © 2022, Electric Power Automation Equipment Press. All right reserved.
引用
收藏
页码：90 / 95
页数：5
相关论文
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