Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario

Chi Zhang; Giampaolo Buticchi; Jiajun Yang; Zhixiang Zou

doi:10.1109/IECON43393.2020.9254644

Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario

Chi Zhang
, Giampaolo Buticchi
, Jiajun Yang
, Zhixiang Zou

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

3 Citations (Scopus)

274 Downloads (Pure)

Abstract

The development of power electronics and control technology provides improved performance of the electrical appliances, making them robust to changes in the supply voltage or frequency. However, power electronic converters behave as constant power loads (CPLs), which have negative impedance characteristics, and this non-linear behavior is challenging the stability of the grid. This paper investigates the input impedance of a three-phase low-voltage grid connected ac-dc converter that operating as a CPL when interfaced to a single DC bus and a changeable load. The possibility of adopting a Smart Transformer (ST), a power electronics converter which feeds a low-voltage grid, for the CPL stabilization is also addressed. To analyze the behavior of CPLs, a strategy of impedance modelling is employed. Gain Margin Phase Margin (GMPM) Criterion is referred to judge the stability of the system and verify the stabilization operation for CPLs. Simulation results are presented to be as a support.

Original language	English
Title of host publication	Proceedings - IECON 2020
Subtitle of host publication	46th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE Computer Society
Pages	2895-2900
Number of pages	6
ISBN (Electronic)	9781728154145
DOIs	https://doi.org/10.1109/IECON43393.2020.9254644
Publication status	Published - 18 Oct 2020
Event	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 - Virtual, Singapore, Singapore Duration: 19 Oct 2020 → 21 Oct 2020

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
Volume	2020-October

Conference

Conference	46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Country/Territory	Singapore
City	Virtual, Singapore
Period	19/10/20 → 21/10/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Free Keywords

Smart Transformer
ac-dc converter
constant power loads
impedance modelling
stabilization

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/IECON43393.2020.9254644

Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid ScenarioAccepted author manuscript, 1.87 MBLicence: CC BY

Cite this

Zhang, C., Buticchi, G., Yang, J., & Zou, Z. (2020). Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society (pp. 2895-2900). Article 9254644 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October). IEEE Computer Society. https://doi.org/10.1109/IECON43393.2020.9254644

Zhang, Chi ; Buticchi, Giampaolo ; Yang, Jiajun et al. / Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario. Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2020. pp. 2895-2900 (IECON Proceedings (Industrial Electronics Conference)).

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title = "Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario",

abstract = "The development of power electronics and control technology provides improved performance of the electrical appliances, making them robust to changes in the supply voltage or frequency. However, power electronic converters behave as constant power loads (CPLs), which have negative impedance characteristics, and this non-linear behavior is challenging the stability of the grid. This paper investigates the input impedance of a three-phase low-voltage grid connected ac-dc converter that operating as a CPL when interfaced to a single DC bus and a changeable load. The possibility of adopting a Smart Transformer (ST), a power electronics converter which feeds a low-voltage grid, for the CPL stabilization is also addressed. To analyze the behavior of CPLs, a strategy of impedance modelling is employed. Gain Margin Phase Margin (GMPM) Criterion is referred to judge the stability of the system and verify the stabilization operation for CPLs. Simulation results are presented to be as a support.",

keywords = "Smart Transformer, ac-dc converter, constant power loads, impedance modelling, stabilization",

author = "Chi Zhang and Giampaolo Buticchi and Jiajun Yang and Zhixiang Zou",

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Zhang, C, Buticchi, G , Yang, J & Zou, Z 2020, Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario. in Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society., 9254644, IECON Proceedings (Industrial Electronics Conference), vol. 2020-October, IEEE Computer Society, pp. 2895-2900, 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020, Virtual, Singapore, Singapore, 19/10/20. https://doi.org/10.1109/IECON43393.2020.9254644

Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario. / Zhang, Chi; Buticchi, Giampaolo ; Yang, Jiajun et al.
Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society, 2020. p. 2895-2900 9254644 (IECON Proceedings (Industrial Electronics Conference); Vol. 2020-October).

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

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T1 - Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario

AU - Zhang, Chi

AU - Buticchi, Giampaolo

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AU - Zou, Zhixiang

PY - 2020/10/18

Y1 - 2020/10/18

N2 - The development of power electronics and control technology provides improved performance of the electrical appliances, making them robust to changes in the supply voltage or frequency. However, power electronic converters behave as constant power loads (CPLs), which have negative impedance characteristics, and this non-linear behavior is challenging the stability of the grid. This paper investigates the input impedance of a three-phase low-voltage grid connected ac-dc converter that operating as a CPL when interfaced to a single DC bus and a changeable load. The possibility of adopting a Smart Transformer (ST), a power electronics converter which feeds a low-voltage grid, for the CPL stabilization is also addressed. To analyze the behavior of CPLs, a strategy of impedance modelling is employed. Gain Margin Phase Margin (GMPM) Criterion is referred to judge the stability of the system and verify the stabilization operation for CPLs. Simulation results are presented to be as a support.

AB - The development of power electronics and control technology provides improved performance of the electrical appliances, making them robust to changes in the supply voltage or frequency. However, power electronic converters behave as constant power loads (CPLs), which have negative impedance characteristics, and this non-linear behavior is challenging the stability of the grid. This paper investigates the input impedance of a three-phase low-voltage grid connected ac-dc converter that operating as a CPL when interfaced to a single DC bus and a changeable load. The possibility of adopting a Smart Transformer (ST), a power electronics converter which feeds a low-voltage grid, for the CPL stabilization is also addressed. To analyze the behavior of CPLs, a strategy of impedance modelling is employed. Gain Margin Phase Margin (GMPM) Criterion is referred to judge the stability of the system and verify the stabilization operation for CPLs. Simulation results are presented to be as a support.

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T3 - IECON Proceedings (Industrial Electronics Conference)

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Zhang C, Buticchi G , Yang J, Zou Z. Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario. In Proceedings - IECON 2020: 46th Annual Conference of the IEEE Industrial Electronics Society. IEEE Computer Society. 2020. p. 2895-2900. 9254644. (IECON Proceedings (Industrial Electronics Conference)). doi: 10.1109/IECON43393.2020.9254644

Control and Stabilization of Grid-connected Converters Operating as Constant Power Load in a Smart Transformer Grid Scenario

Abstract

Publication series

Conference

UN SDGs

Free Keywords

ASJC Scopus subject areas

Access to Document

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