电气传动2018，Vol.48Issue(2)：39-42,4.DOI:10.19457/j.1001-2095.20180207
基于改进模型预测单相三电平变换器控制研究
Research on Improved Model Predictive Control for Single-phase Three-level Converters
文彬1
作者信息
- 1. 中石化石油工程设计有限公司电力设计所,山东 东营257026
- 折叠
摘要
Abstract
A single-phase three-level converter is widely used in high railway electric traction system.However, the three-level converter exist the neutral-point voltage unbalance.Therefore,a model predictive control method was proposed. The neutral-point voltage could be balanced by selecting the vectors. First of all,the model was used for model predictive control.Then the vector could be chosen by selecting the optimal value function to realize the current tracking control.Compared with traditional PI controller,this method did not need parameter adjustment and vector modulation technology. And compared with PI controller,the method had faster tracking speed. Compared with the conventional model predictive control,the proposed method did not need to adjust the complex weighting coefficients. Experiments validate that the proposed method can track the given current well,and the neutral-point voltage is well controlled.关键词
模型预测控制/单相/中点平衡控制Key words
model predictive control/single-phase/neutral point balance control分类
信息技术与安全科学引用本文复制引用
文彬..基于改进模型预测单相三电平变换器控制研究[J].电气传动,2018,48(2):39-42,4.
