A Novel Frequency Domain Control method for Modular Multilevel Converters under Non-sinusoidal Supply Conditions

被引：0

作者：

Rodrigues, Rostan ^{[1
]}

Li, Jun ^{[1
]}

Ginn, Herbert L., III ^{[2
]}

机构：

[1] ABB Inc, US Corp Res Ctr, Raleigh, NC 27606 USA

[2] Univ South Carolina, Dept Elect Engn, Columbia, SC USA

来源：

2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2017年

关键词：

Modular Multilevel Converter (MMC); circulating current; symmetrical components; Recursive Discrete Fourier Transform (RDFT);

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a novel control method that enables operation of Modular Multilevel Converters under non sinusoidal AC supply conditions based on frequency domain decomposition of supply voltages. The proposed control method enables to inject or draw near sinusoidal grid currents even during the presence of harmonic distortions in the supply voltages without the use of additional hardware filters. The paper also presents a modified feedback approach for circulating current suppressing controller which minimizes circulating current while maintaining sub-module capacitor voltage dc level to the desired value and also minimizes dc bus current ripples. Simulation results show the effectiveness of the proposed control structure under supply harmonic distortions.

引用

页码：1506 / 1512

页数：7

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