文章基本信息

标题：Repetitive Control of Neutral-Point Voltage in NPC Three-Level Inverters Based on EID Compensation ⁎
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作者：Kailiang. Zhang ; Fang. Liu ; Yong. Li 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2020
卷号：53
期号：2
页码：12429-12434
DOI：10.1016/j.ifacol.2020.12.1316
语种：English
出版社：Elsevier
摘要：AbstractNeutral-Point clamped (NPC) three-level inverters have a broad application prospect. However, the voltage imbalance of the capacitors and the drafting of its neutral-point voltage will generate voltage stresses on the switches and even increase the total harmonic distortion (THD) rate in their output. In this paper, an improved repetitive control method based on the idea of equivalent input disturbance (EID) compensation is adopted. By adding an additional neutral-point branch, the neutral-point voltage control problem is transformed into a disturbance suppression problem. The case studied are tested using MATLAB/SIMULINK software and the experiment results show that this proposed control strategy can overcome both periodic and non-periodic disturbance, restraining the voltage fluctuation at the neutral point to a lower level.
关键词：KeywordsTotal harmonic distortion ratethree-level inverterrepetitive controlequivalent input disturbanceneutral-point voltage control