Harmonic state space impedance model of MMC considering internal impedance of AC and DC Grid

Shiguang Zhang; Binbin Li; Zigao Xu; Dianguo Xu

doi:10.1049/cp.2019.0420

Harmonic state space impedance model of MMC considering internal impedance of AC and DC Grid

Shiguang Zhang^*
, Binbin Li
, Zigao Xu
, Dianguo Xu

^*Corresponding author for this work

School of Electrical Engineering and Automation

Harbin Institute of Technology

Research output: Contribution to conference › Paper › peer-review

5 Scopus citations

Abstract

Impedance modeling of modular multilevel converters (MMC) has attracted extensive research in recent years. Many modeling methods have been proposed to model MMC. To simplify the analysis, these methods ignore the internal impedance of AC and DC grid connected to MMC. However, ignoring these impedances will seriously affect the impedance characteristics of MMC, resulting in an inaccurate model. In this paper, a modified model based on harmonic state space (HSS) method is proposed, which can reflect the influence of arbitrary AC and DC grid impedance on MMC. This method improves the accuracy of the model and provides theoretical basis for impedance analysis when MMC connected to any other equipment. Finally, simulation results validate the theoretical analysis.

Original language	English
DOIs	https://doi.org/10.1049/cp.2019.0420
State	Published - 2019
Event	8th Renewable Power Generation Conference, RPG 2019 - Shanghai, China Duration: 24 Oct 2019 → 25 Oct 2019

Conference

Conference	8th Renewable Power Generation Conference, RPG 2019
Country/Territory	China
City	Shanghai
Period	24/10/19 → 25/10/19

Keywords

Grid impedance
Harmonic State Space (HSS)
Impedance model
MMC

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10.1049/cp.2019.0420

Cite this

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title = "Harmonic state space impedance model of MMC considering internal impedance of AC and DC Grid",

abstract = "Impedance modeling of modular multilevel converters (MMC) has attracted extensive research in recent years. Many modeling methods have been proposed to model MMC. To simplify the analysis, these methods ignore the internal impedance of AC and DC grid connected to MMC. However, ignoring these impedances will seriously affect the impedance characteristics of MMC, resulting in an inaccurate model. In this paper, a modified model based on harmonic state space (HSS) method is proposed, which can reflect the influence of arbitrary AC and DC grid impedance on MMC. This method improves the accuracy of the model and provides theoretical basis for impedance analysis when MMC connected to any other equipment. Finally, simulation results validate the theoretical analysis.",

keywords = "Grid impedance, Harmonic State Space (HSS), Impedance model, MMC",

author = "Shiguang Zhang and Binbin Li and Zigao Xu and Dianguo Xu",

note = "Publisher Copyright: {\textcopyright} 2019 Institution of Engineering and Technology. All rights reserved.; 8th Renewable Power Generation Conference, RPG 2019 ; Conference date: 24-10-2019 Through 25-10-2019",

year = "2019",

doi = "10.1049/cp.2019.0420",

language = "英语",

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TY - CONF

T1 - Harmonic state space impedance model of MMC considering internal impedance of AC and DC Grid

AU - Zhang, Shiguang

AU - Li, Binbin

AU - Xu, Zigao

AU - Xu, Dianguo

PY - 2019

Y1 - 2019

N2 - Impedance modeling of modular multilevel converters (MMC) has attracted extensive research in recent years. Many modeling methods have been proposed to model MMC. To simplify the analysis, these methods ignore the internal impedance of AC and DC grid connected to MMC. However, ignoring these impedances will seriously affect the impedance characteristics of MMC, resulting in an inaccurate model. In this paper, a modified model based on harmonic state space (HSS) method is proposed, which can reflect the influence of arbitrary AC and DC grid impedance on MMC. This method improves the accuracy of the model and provides theoretical basis for impedance analysis when MMC connected to any other equipment. Finally, simulation results validate the theoretical analysis.

AB - Impedance modeling of modular multilevel converters (MMC) has attracted extensive research in recent years. Many modeling methods have been proposed to model MMC. To simplify the analysis, these methods ignore the internal impedance of AC and DC grid connected to MMC. However, ignoring these impedances will seriously affect the impedance characteristics of MMC, resulting in an inaccurate model. In this paper, a modified model based on harmonic state space (HSS) method is proposed, which can reflect the influence of arbitrary AC and DC grid impedance on MMC. This method improves the accuracy of the model and provides theoretical basis for impedance analysis when MMC connected to any other equipment. Finally, simulation results validate the theoretical analysis.

KW - Grid impedance

KW - Harmonic State Space (HSS)

KW - Impedance model

KW - MMC

UR - https://www.scopus.com/pages/publications/85081608365

U2 - 10.1049/cp.2019.0420

DO - 10.1049/cp.2019.0420

M3 - 论文

AN - SCOPUS:85081608365

T2 - 8th Renewable Power Generation Conference, RPG 2019

Y2 - 24 October 2019 through 25 October 2019

ER -

Harmonic state space impedance model of MMC considering internal impedance of AC and DC Grid

Abstract

Conference

Keywords

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