山东电力技术2025，Vol.52Issue(12)：81-91,11.DOI:10.20097/j.cnki.issn1007-9904.240518
基于扰动观测器的并网逆变器鲁棒模型预测控制
Robust Model Predictive Control for Grid-connected Inverters Based on Disturbance Observer
TENG Fei 1WU Junjun 1JIANG Chen 2HUANG Haoyi 1HUANG Kun1
作者信息
- 1. China Energy Engineering Group Zhejiang Electric Power Design Institute Co.,Ltd.,Hangzhou 310000,China
- 2. State Grid Hangzhou Power Supply Company,Hangzhou 310000,China
- 折叠
摘要
Abstract
The model predictive control technology of grid-connected inverters has been explored and studied by many scholars in academia and industry because of its advantages such as not being required to design proportional integral controllers.However,the conventional model predictive control technology of grid-connected inverters is sensitive to variations in inverter parameters.Once the filter inductance or other parameters are mismatched,the control accuracy of model predictive control will be significantly reduced.To solve this problem,an improved control strategy of the grid-connected inverter is proposed in this paper,which uses a disturbance observer to achieve parameter perturbation on-line observation and uses the observation results to compensate the model predictive control.The mathematical model of the grid-connected inverter is modified to be expressed as the sum of the known voltage signal and the unknown lumped disturbance first.Then,a disturbance observer is designed to observe the lumped disturbance,and the observed disturbance is used to compensate the model predictive control strategy.Finally,a model predictive control method with strong robustness to parameter mismatch is obtained.The proposed method effectively mitigates the adverse effects of parameter misatches,such as inductance variations,on model predictive control,thereby improving the control accuracy of grid-connected inverters.Simulation results obtained using MATLAB/Simulink verify the superiority of the proposed method.关键词
并网逆变器/扰动观测器/模型预测控制/鲁棒性Key words
grid-connected inverter/disturbance observer/model predictive control/robust分类
信息技术与安全科学引用本文复制引用
TENG Fei,WU Junjun,JIANG Chen,HUANG Haoyi,HUANG Kun..基于扰动观测器的并网逆变器鲁棒模型预测控制[J].山东电力技术,2025,52(12):81-91,11.
