电气传动2025，Vol.55Issue(7)：36-44,9.DOI:10.19457/j.1001-2095.dqcd26021
三相LCL并网逆变器三矢量定频预测电流控制
Three Vector Fixed Frequency Predictive Current Control for Three-phase LCL Grid Connected Inverters
摘要
Abstract
The traditional predictive current control for three-phase LCL grid connected inverters has the problems of large steady-state ripple and unstable switching frequency,which is not conducive to the quality of grid connected current and the design of filters.Therefore,an improved three vector fixed frequency predictive current control method was proposed.By applying three vectors within one control cycle,the control degrees of freedom were maximized.Firstly,an active damping method based on capacitor voltage feedback was designed to suppress resonance.Then,a duty cycle calculation method based on inverter side current deadbeat control and a seven segment symmetric pulse generation scheme were proposed.The simulation results and test results verified the superiority of the proposed method in improving dynamic performance,steady-state performance and fixing switching frequency.关键词
LCL并网逆变器/模型预测控制/占空比计算/调制/有源阻尼Key words
LCL grid connected inverter/model predictive control(MPC)/duty cycle calculations/modulation/active damping分类
信息技术与安全科学引用本文复制引用
丁朝辉,姚斐,江钧,高昂,邵高..三相LCL并网逆变器三矢量定频预测电流控制[J].电气传动,2025,55(7):36-44,9.基金项目
国网江苏省电力有限公司省管产业科技项目(JC2024044) （JC2024044）
