基于滑模扰动观测器的三相并网逆变器鲁棒模型预测控制

魏新伟; 陶万宇; 郭新宇; 黄旭程

doi:10.19912/j.0254-0096.tynxb.2025-0281

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (10) : 117-127. DOI: 10.19912/j.0254-0096.tynxb.2025-0281

基于滑模扰动观测器的三相并网逆变器鲁棒模型预测控制

魏新伟¹, 陶万宇¹, 郭新宇¹, 黄旭程²

作者信息 +

ROBUST MODEL PREDICTIVE CONTROL OF THREE-PHASE GRID-CONNECTED INVERTER BASED ON SLIDING MODE DISTURBANCE OBSERVER

Wei Xinwei¹, Tao Wanyu¹, Guo Xinyu¹, Huang Xucheng²

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文章历史 +

摘要

该文将针对传统模型预测控制对系统模型高度依赖的缺陷提出适用于三相并网逆变系统的鲁棒模型预测控制。通过设计动态滑模扰动观测器对三相并网电抗器参数不匹配引起的集中扰动进行观测,并将扰动观测值补偿至系统预测模型中。同时,将三相并网逆变器的有功电流和无功电流输出控制叠加至模型预测控制的损耗函数中,依次求得所有有效开关状态下损耗函数的值,则使损耗函数最小的有效开关状态为最优开关状态,并被选择以触发并网逆变器。最后,搭建10 kW三相并网逆变实验平台以验证所提鲁棒模型预测控制的可行性和有效性。

Abstract

A robust MPC for three-phase grid-connected inverter system is proposed to address the high dependence on system model of traditional MPC in this paper. The dynamic sliding mode disturbance observer is designed to observe the centralized disturbance caused by the parameter mismatch of three-phase grid-connected inductor, and the disturbance observation is compensated to the system predictive model. At the same time, the active current and reactive current output control of the three-phase grid-connected inverter are incorporated into the cost function of MPC. The cost function values are evaluated for all valid switch states, then the optimal switch state that minimizes the cost function will be selected to trigger the grid-connected inverter. Finally, a 10 kW three-phase grid-connected inverter experimental platform is built to verify the feasibility and effectiveness of the proposed robust MPC.

导出引用

魏新伟, 陶万宇, 郭新宇, 黄旭程. 基于滑模扰动观测器的三相并网逆变器鲁棒模型预测控制[J]. 太阳能学报. 2025, 46(10): 117-127 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0281

Wei Xinwei, Tao Wanyu, Guo Xinyu, Huang Xucheng. ROBUST MODEL PREDICTIVE CONTROL OF THREE-PHASE GRID-CONNECTED INVERTER BASED ON SLIDING MODE DISTURBANCE OBSERVER[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 117-127 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0281

中图分类号： TM464

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