电气传动2025，Vol.55Issue(9)：52-60,9.DOI:10.19457/j.1001-2095.dqcd25771
改进的三电平NPC逆变器中点平衡模型预测控制策略研究
Improved Neutral Point Balance Model Predictive Control Strategy for Three-level NPC Inverter
摘要
Abstract
To solve the problem of neutral point voltage imbalance when the three-level neutral point clamped(NPC)inverter works,an improved neutral balance model predictive control(INB-MPC)algorithm was proposed.The proposed method used a two-stage voltage vector selection method with no weighting factors,deleted the space vector with large common-mode voltage,and constructed redundant virtual short vectors that has no effect on the neutral point to balance the neutral point voltage.Compared with the traditional low common mode voltage algorithm,the proposed algorithm has lower midpoint ripple and less computational burden.The simulation results show that the proposed algorithm reduce the neutral point voltage ripple,and can realize the tracking of reference current and the reduction of common-mode voltage,and the system has good dynamic and static performance.关键词
三电平NPC逆变器/模型预测控制/中点电压/虚拟电压矢量/共模电压Key words
three-level neutral point clamped(NPC)inverter/model predictive control(MPC)/neutral point voltage/virtual voltage vector/common-mode voltage(CMV)分类
信息技术与安全科学引用本文复制引用
汪以涵,冯传欣,金涛..改进的三电平NPC逆变器中点平衡模型预测控制策略研究[J].电气传动,2025,55(9):52-60,9.基金项目
国家自然科学基金面上项目(52377088) （52377088）
中央引导地方科技发展项目(2021L3005) （2021L3005）
