智能城市2025，Vol.11Issue(4)：63-65,3.DOI:10.19301/j.cnki.zncs.2025.04.017
基于广义预测控制的LCL光伏并网逆变器的控制策略
Control strategy of LCL photovoltaic grid connected inverter based on generalized predictive control
江勇 1王绍帅1
作者信息
- 1. 辽港控股(营口)有限公司水电分公司,辽宁 营口 115000
- 折叠
摘要
Abstract
After grid connection,the current harmonics of photovoltaic(PV)grid-connected inverters may cause voltage distortion in the power grid.This study proposes a generalized predictive control(GPC)-based inverter-side current(ISG)feedback control strategy.The mathematical model of the voltage-type LCL single-phase PV grid-connected inverter system is analyzed,and the GPC law is derived,with the prediction and control horizons determined.Results showed that,compared with the traditional proportional resonant control strategy,GPC can effectively reduce the harmonic content of the grid-connected current and exhibits strong robustness.The control strategy meets the grid connection requirements,enabling the inverter output current to accurately track the frequency and phase of the grid voltage and ensuring that the total harmonic distortion(THD)remains below 5.00%.关键词
并网逆变器/谐波/LCL/广义预测控制(GPC)Key words
grid-connected inverter/harmonics/LCL/generalized predictive control(GPC)分类
信息技术与安全科学引用本文复制引用
江勇,王绍帅..基于广义预测控制的LCL光伏并网逆变器的控制策略[J].智能城市,2025,11(4):63-65,3.
