Model predictive control with constant switching frequency of three-level grid-connected inverter

被引：0

作者：

Cheng J. ^{[1
,2
]}

Kang L. ^{[1
,2
]}

Hu B. ^{[1
,2
]}

Feng Y. ^{[1
,2
]}

机构：

[1] School of Electric Power, South China University of Technology, Guangzhou

[2] Key Laboratory of Clean Energy Technology of Guangdong Province, South China University of Technology, Guangzhou

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 05期

关键词：

Center vector; Constant switching frequency; Model predictive control; Switching sequence; Three-level grid-connected inverter;

D O I：

10.16081/j.issn.1006-6047.2019.05.025

中图分类号：

学科分类号：

摘要：

Traditional FCS-MPC(Finite Control Set Model Predictive Control) cannot provide a constant switching frequency, which brings huge difficulties to the design of output filter. To address this issue, a CSF-MPC(Constant Switching Frequency Model Predictive Control) for three-level grid-connected inverters is proposed. The proposed algorithm applies the predicted optimal switch sequence control to three-level grid-connected inverters, and improves its optimization strategy. This improved method is to locate the small sector where the optimal switching sequence is located by searching the center vector that minimizes the objective function. The simulative and experimental results show that the proposed strategy can not only provide fixed frequency with reduced computation cost, but also exhibit satisfactory static and dynamic performance. © 2019, Electric Power Automation Equipment Press. All right reserved.

引用

页码：169 / 175

页数：6

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