A modified circulating current suppressing strategy for nearest level control based modular multilevel converter

Xingxing Chen; Jinjun Liu; Shaodi Ouyang; Shuguang Song; Hongda Wu

doi:10.1109/ECCE.2017.8096015

A modified circulating current suppressing strategy for nearest level control based modular multilevel converter

Xingxing Chen
, Jinjun Liu
, Shaodi Ouyang
, Shuguang Song
, Hongda Wu

School of Electrical Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

10 Scopus citations

Abstract

The second-harmonic circulating current in the phase legs of modular multilevel converter (MMC) leads to additional power losses. Existing circulating current suppressing strategies are realized by injecting the second-harmonic component in arm voltage reference. This paper presents a modified circulating current suppressing strategy including two controllers with a fixed-band submodule (SM) state transition principle. The proposed strategy is different from traditional methods, and especially suitable for MMC with nearest level control (NLC). Operating as hysteresis control, the peak values of circulating current can be approximately limited within the fixedband. A detailed analysis in this paper for traditional circulating current suppressing controllers (TCCSC) and the proposed controller1 demonstrates that the peak-To-peak (p-p) value of the controlled circulating current for the former is greater than the latter, mainly due to the operation characteristic of MMC in the case of NLC. Moreover, the proposed controllers are simpler to be implemented with very fast dynamic performance. Simulation results proved effectiveness of the proposed control strategy.

Original language	English
Title of host publication	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1817-1822
Number of pages	6
ISBN (Electronic)	9781509029983
DOIs	https://doi.org/10.1109/ECCE.2017.8096015
State	Published - 3 Nov 2017
Event	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 - Cincinnati, United States Duration: 1 Oct 2017 → 5 Oct 2017

Publication series

Name	2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017
Volume	2017-January

Conference

Conference	9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017
Country/Territory	United States
City	Cincinnati
Period	1/10/17 → 5/10/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Ciruulating current control
Fixed-band
Modular multilevel converter
Nearest level control

Access to Document

10.1109/ECCE.2017.8096015

Cite this

Chen, X., Liu, J., Ouyang, S., Song, S., & Wu, H. (2017). A modified circulating current suppressing strategy for nearest level control based modular multilevel converter. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017 (pp. 1817-1822). Article 8096015 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2017.8096015

Chen, Xingxing ; Liu, Jinjun ; Ouyang, Shaodi et al. / A modified circulating current suppressing strategy for nearest level control based modular multilevel converter. 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1817-1822 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017).

@inproceedings{b69208defaa64dddaaa5be9e93b34758,

title = "A modified circulating current suppressing strategy for nearest level control based modular multilevel converter",

abstract = "The second-harmonic circulating current in the phase legs of modular multilevel converter (MMC) leads to additional power losses. Existing circulating current suppressing strategies are realized by injecting the second-harmonic component in arm voltage reference. This paper presents a modified circulating current suppressing strategy including two controllers with a fixed-band submodule (SM) state transition principle. The proposed strategy is different from traditional methods, and especially suitable for MMC with nearest level control (NLC). Operating as hysteresis control, the peak values of circulating current can be approximately limited within the fixedband. A detailed analysis in this paper for traditional circulating current suppressing controllers (TCCSC) and the proposed controller1 demonstrates that the peak-To-peak (p-p) value of the controlled circulating current for the former is greater than the latter, mainly due to the operation characteristic of MMC in the case of NLC. Moreover, the proposed controllers are simpler to be implemented with very fast dynamic performance. Simulation results proved effectiveness of the proposed control strategy.",

keywords = "Ciruulating current control, Fixed-band, Modular multilevel converter, Nearest level control",

author = "Xingxing Chen and Jinjun Liu and Shaodi Ouyang and Shuguang Song and Hongda Wu",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017 ; Conference date: 01-10-2017 Through 05-10-2017",

year = "2017",

month = nov,

day = "3",

doi = "10.1109/ECCE.2017.8096015",

language = "英语",

series = "2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017",

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Chen, X, Liu, J, Ouyang, S, Song, S & Wu, H 2017, A modified circulating current suppressing strategy for nearest level control based modular multilevel converter. in 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017., 8096015, 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017, vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 1817-1822, 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017, Cincinnati, United States, 1/10/17. https://doi.org/10.1109/ECCE.2017.8096015

A modified circulating current suppressing strategy for nearest level control based modular multilevel converter. / Chen, Xingxing; Liu, Jinjun; Ouyang, Shaodi et al.
2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 1817-1822 8096015 (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017; Vol. 2017-January).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - A modified circulating current suppressing strategy for nearest level control based modular multilevel converter

AU - Chen, Xingxing

AU - Liu, Jinjun

AU - Ouyang, Shaodi

AU - Song, Shuguang

AU - Wu, Hongda

PY - 2017/11/3

Y1 - 2017/11/3

N2 - The second-harmonic circulating current in the phase legs of modular multilevel converter (MMC) leads to additional power losses. Existing circulating current suppressing strategies are realized by injecting the second-harmonic component in arm voltage reference. This paper presents a modified circulating current suppressing strategy including two controllers with a fixed-band submodule (SM) state transition principle. The proposed strategy is different from traditional methods, and especially suitable for MMC with nearest level control (NLC). Operating as hysteresis control, the peak values of circulating current can be approximately limited within the fixedband. A detailed analysis in this paper for traditional circulating current suppressing controllers (TCCSC) and the proposed controller1 demonstrates that the peak-To-peak (p-p) value of the controlled circulating current for the former is greater than the latter, mainly due to the operation characteristic of MMC in the case of NLC. Moreover, the proposed controllers are simpler to be implemented with very fast dynamic performance. Simulation results proved effectiveness of the proposed control strategy.

AB - The second-harmonic circulating current in the phase legs of modular multilevel converter (MMC) leads to additional power losses. Existing circulating current suppressing strategies are realized by injecting the second-harmonic component in arm voltage reference. This paper presents a modified circulating current suppressing strategy including two controllers with a fixed-band submodule (SM) state transition principle. The proposed strategy is different from traditional methods, and especially suitable for MMC with nearest level control (NLC). Operating as hysteresis control, the peak values of circulating current can be approximately limited within the fixedband. A detailed analysis in this paper for traditional circulating current suppressing controllers (TCCSC) and the proposed controller1 demonstrates that the peak-To-peak (p-p) value of the controlled circulating current for the former is greater than the latter, mainly due to the operation characteristic of MMC in the case of NLC. Moreover, the proposed controllers are simpler to be implemented with very fast dynamic performance. Simulation results proved effectiveness of the proposed control strategy.

KW - Ciruulating current control

KW - Fixed-band

KW - Modular multilevel converter

KW - Nearest level control

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U2 - 10.1109/ECCE.2017.8096015

DO - 10.1109/ECCE.2017.8096015

M3 - 会议稿件

AN - SCOPUS:85041466608

T3 - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

SP - 1817

EP - 1822

BT - 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 9th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2017

Y2 - 1 October 2017 through 5 October 2017

ER -

Chen X, Liu J, Ouyang S, Song S, Wu H. A modified circulating current suppressing strategy for nearest level control based modular multilevel converter. In 2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1817-1822. 8096015. (2017 IEEE Energy Conversion Congress and Exposition, ECCE 2017). doi: 10.1109/ECCE.2017.8096015

A modified circulating current suppressing strategy for nearest level control based modular multilevel converter

Abstract

Publication series

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UN SDGs

Keywords

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