Small-signal modelling of AC/MTDC hybrid power systems using Multi-Layer Component Connection Method

Hao Wang; Weihao Hu; Guozhou Zhang; Yuanhong Tang; Shi Jing; Zhe Chen

doi:10.1016/j.egyr.2020.11.080

Small-signal modelling of AC/MTDC hybrid power systems using Multi-Layer Component Connection Method

Hao Wang, Weihao Hu^*, Guozhou Zhang, Yuanhong Tang, Shi Jing, Zhe Chen

^*Corresponding author for this work

Research output: Contribution to journal › Conference article in Journal › Research › peer-review

2 Citations (Scopus)

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Abstract

In order to simplify the stability analysis of an AC/MTDC (multi-terminal direct current) power system, this paper presents a Multi-Layer Component Connection Method (MLCCM)-based small signal model for AC/MTDC hybrid power systems. Based on ML-CCM, the system is partitioned as small individual system or components, including generator units, voltage source converter (VSC) units, time delay units, AC network and DC network. The modelling procedure can be 3 steps. First, the individual components are independently modelled. Second, several small individual components are assembled together to build the AC system model based on component interconnection relationship. Third, all AC power systems and DC network model are assembled together to build the whole hybrid power based on the interconnection relationship. There are three features for the MLCCM: (1) these component models can be built individually; (2) their interconnection relationship is a linear algebra matrix; (3) subsystem model can be verified or debugged individually. Due to the three features, the whole hybrid power can be built easily and it is convenient for finding modelling fault and debugging. An AC/DC hybrid system model in MATLAB/Simulink is also built to validate the effectiveness of the MLCCM-based small signal model.

Original language	English
Journal	Energy Reports
Volume	6
Issue number	Suppl. 9
Pages (from-to)	1033-1040
Number of pages	8
DOIs	https://doi.org/10.1016/j.egyr.2020.11.080
Publication status	Published - Dec 2020
Event	7th International Conference on Power and Energy Systems Engineering (CPESE 2020) - Fukuoka, Japan Duration: 26 Sept 2020 → 29 Sept 2020

Conference

Conference	7th International Conference on Power and Energy Systems Engineering (CPESE 2020)
Country/Territory	Japan
City	Fukuoka
Period	26/09/2020 → 29/09/2020

Bibliographical note

Funding Information:
This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312 .

Funding Information:
This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312.

Publisher Copyright:
© 2020 The Authors

Keywords

Component Connection Method
MTDC
Small signal model
VSC

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Cite this

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title = "Small-signal modelling of AC/MTDC hybrid power systems using Multi-Layer Component Connection Method",

abstract = "In order to simplify the stability analysis of an AC/MTDC (multi-terminal direct current) power system, this paper presents a Multi-Layer Component Connection Method (MLCCM)-based small signal model for AC/MTDC hybrid power systems. Based on ML-CCM, the system is partitioned as small individual system or components, including generator units, voltage source converter (VSC) units, time delay units, AC network and DC network. The modelling procedure can be 3 steps. First, the individual components are independently modelled. Second, several small individual components are assembled together to build the AC system model based on component interconnection relationship. Third, all AC power systems and DC network model are assembled together to build the whole hybrid power based on the interconnection relationship. There are three features for the MLCCM: (1) these component models can be built individually; (2) their interconnection relationship is a linear algebra matrix; (3) subsystem model can be verified or debugged individually. Due to the three features, the whole hybrid power can be built easily and it is convenient for finding modelling fault and debugging. An AC/DC hybrid system model in MATLAB/Simulink is also built to validate the effectiveness of the MLCCM-based small signal model.",

keywords = "Component Connection Method, MTDC, Small signal model, VSC",

author = "Hao Wang and Weihao Hu and Guozhou Zhang and Yuanhong Tang and Shi Jing and Zhe Chen",

note = "Funding Information: This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312 . Funding Information: This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312. Publisher Copyright: {\textcopyright} 2020 The Authors; 7th International Conference on Power and Energy Systems Engineering (CPESE 2020), CPESE 2020 ; Conference date: 26-09-2020 Through 29-09-2020",

year = "2020",

month = dec,

doi = "10.1016/j.egyr.2020.11.080",

language = "English",

volume = "6",

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journal = "Energy Reports",

issn = "2352-4847",

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AU - Wang, Hao

AU - Hu, Weihao

AU - Zhang, Guozhou

AU - Tang, Yuanhong

AU - Jing, Shi

AU - Chen, Zhe

N1 - Funding Information: This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312 . Funding Information: This work was supported by the Sichuan Science and Technology Program, China under Grant 2020JDJQ0037 and 2020YFG0312. Publisher Copyright: © 2020 The Authors

PY - 2020/12

Y1 - 2020/12

N2 - In order to simplify the stability analysis of an AC/MTDC (multi-terminal direct current) power system, this paper presents a Multi-Layer Component Connection Method (MLCCM)-based small signal model for AC/MTDC hybrid power systems. Based on ML-CCM, the system is partitioned as small individual system or components, including generator units, voltage source converter (VSC) units, time delay units, AC network and DC network. The modelling procedure can be 3 steps. First, the individual components are independently modelled. Second, several small individual components are assembled together to build the AC system model based on component interconnection relationship. Third, all AC power systems and DC network model are assembled together to build the whole hybrid power based on the interconnection relationship. There are three features for the MLCCM: (1) these component models can be built individually; (2) their interconnection relationship is a linear algebra matrix; (3) subsystem model can be verified or debugged individually. Due to the three features, the whole hybrid power can be built easily and it is convenient for finding modelling fault and debugging. An AC/DC hybrid system model in MATLAB/Simulink is also built to validate the effectiveness of the MLCCM-based small signal model.

AB - In order to simplify the stability analysis of an AC/MTDC (multi-terminal direct current) power system, this paper presents a Multi-Layer Component Connection Method (MLCCM)-based small signal model for AC/MTDC hybrid power systems. Based on ML-CCM, the system is partitioned as small individual system or components, including generator units, voltage source converter (VSC) units, time delay units, AC network and DC network. The modelling procedure can be 3 steps. First, the individual components are independently modelled. Second, several small individual components are assembled together to build the AC system model based on component interconnection relationship. Third, all AC power systems and DC network model are assembled together to build the whole hybrid power based on the interconnection relationship. There are three features for the MLCCM: (1) these component models can be built individually; (2) their interconnection relationship is a linear algebra matrix; (3) subsystem model can be verified or debugged individually. Due to the three features, the whole hybrid power can be built easily and it is convenient for finding modelling fault and debugging. An AC/DC hybrid system model in MATLAB/Simulink is also built to validate the effectiveness of the MLCCM-based small signal model.

KW - Component Connection Method

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KW - Small signal model

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ER -

Small-signal modelling of AC/MTDC hybrid power systems using Multi-Layer Component Connection Method

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