控制理论与应用2026，Vol.43Issue(1)：41-51,11.DOI:10.7641/CTA.2025.50051
带LCL滤波器的三相并网逆变器的鲁棒电流跟踪控制
Robust current tracking control for three-phase grid-connected inverters with LCL filter
摘要
Abstract
This article investigates the robust current tracking control problem of three-phase grid-connected inverters with LCL filter under external disturbance by a dynamic state feedback control method.First,this paper constructs an internal model to learn the information of the states and input of the grid-connected inverter under steady state.Second,by utilizing the internal model principle,the paper turns the tracking control problem into the robust stabilization control problem based on some appropriate coordinate transformations.Then,The paper designs a dynamics state feedback control law to deal with this robust stabilization problem,and thus the solution of the robust current tracking control problem of three-phase grid-connected inverters can be obtained.This control method can ensure the asymptotic stability of the closed-loop system.Finally,the paper illustrates the effectiveness of the proposed control approach through several groups of simulations,and compares it with the feedforward control method to verify the robustness of the proposed control method to uncertain parameters.关键词
并网逆变器/内模原理/电流跟踪/干扰抑制/鲁棒控制Key words
grid-connected inverter/internal model principle/current tracking/disturbance suppression/robust control引用本文复制引用
刘伟,吴本,孙伟杰,雪映,蔡逢煌..带LCL滤波器的三相并网逆变器的鲁棒电流跟踪控制[J].控制理论与应用,2026,43(1):41-51,11.基金项目
Supported by the Fundamental Research Funds for the Central Universities(2024ZYGXZR047),the National Natural Science Foundation of China(62373156)and the Guangdong Basic and Applied Basic Research Foundation(2024A1515011736). （2024ZYGXZR047）
