Reduction of Three-phase Voltage Unbalance Subject to Special Winding Connections of Two Single-Phase Distribution Transformers of a Microgrid System Using a Designed D-STATCOM Controller

Abstract

The U-V or V-V winding connections of two single-phase distribution transformers are widely utilized in distribution systems to deliver power to various three-phase and/or single-phase loads. Such special winding connections of distribution transformers can cause three-phase voltage unbalance in distributions systems, which could also lead to unexpected trip of ground relay, extra power losses on distribution-system lines, reduced operating efficiency of induction-motor loads, etc. This paper proposes a distribution static synchronous compensator (D-STASTCOM) to effectively improve the voltage unbalance of a distribution system connected with a microgrid system. The studied microgrid system contains various renewable-energy resources, a diesel-engine generator, and three distribution transformers with U-V and/or V-V winding connections. The simulation results show that the proposed D-STATCOM with the designed controller can effectively reduce voltage unbalance of the distribution system connected with the studied microgrid system when the distribution transformers have U-V and/or V-V winding connections.

Original language	English
Pages (from-to)	2002-2011
Number of pages	10
Journal	IEEE Transactions on Industry Applications
Volume	54
Issue number	3
DOIs	https://doi.org/10.1109/TIA.2017.2786707
Publication status	Accepted/In press - 22 Dec 2017

Keywords

Automatic voltage control
distribution static synchronous compensator
distribution transformer
Electrical engineering
Generators
Mathematical model
microgrid system
Microgrids
U-V/V-V winding connections
Voltage unbalance
Windings

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/TIA.2017.2786707

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Wang, L., Liu, W. S., Yeh, C. C., Yu, C. H., Lu, X. Y., Kuan, B. L., Wu, H. Y., & Prokhorov, A. V. (Accepted/In press). Reduction of Three-phase Voltage Unbalance Subject to Special Winding Connections of Two Single-Phase Distribution Transformers of a Microgrid System Using a Designed D-STATCOM Controller. IEEE Transactions on Industry Applications, 54(3), 2002-2011. https://doi.org/10.1109/TIA.2017.2786707

Reduction of Three-phase Voltage Unbalance Subject to Special Winding Connections of Two Single-Phase Distribution Transformers of a Microgrid System Using a Designed D-STATCOM Controller. / Wang, Li; Liu, Wei Sheng; Yeh, Chuan Chieh; Yu, Chien Hsiang; Lu, Xiu Yu; Kuan, Bing Lin; Wu, Hong Yi; Prokhorov, Anton V.

In: IEEE Transactions on Industry Applications, Vol. 54, No. 3, 22.12.2017, p. 2002-2011.

Research output: Contribution to journal › Article › peer-review

Wang, L, Liu, WS, Yeh, CC, Yu, CH, Lu, XY, Kuan, BL, Wu, HY & Prokhorov, AV 2017, 'Reduction of Three-phase Voltage Unbalance Subject to Special Winding Connections of Two Single-Phase Distribution Transformers of a Microgrid System Using a Designed D-STATCOM Controller', IEEE Transactions on Industry Applications, vol. 54, no. 3, pp. 2002-2011. https://doi.org/10.1109/TIA.2017.2786707

Wang, Li ; Liu, Wei Sheng ; Yeh, Chuan Chieh ; Yu, Chien Hsiang ; Lu, Xiu Yu ; Kuan, Bing Lin ; Wu, Hong Yi ; Prokhorov, Anton V. / Reduction of Three-phase Voltage Unbalance Subject to Special Winding Connections of Two Single-Phase Distribution Transformers of a Microgrid System Using a Designed D-STATCOM Controller. In: IEEE Transactions on Industry Applications. 2017 ; Vol. 54, No. 3. pp. 2002-2011.

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abstract = "The U-V or V-V winding connections of two single-phase distribution transformers are widely utilized in distribution systems to deliver power to various three-phase and/or single-phase loads. Such special winding connections of distribution transformers can cause three-phase voltage unbalance in distributions systems, which could also lead to unexpected trip of ground relay, extra power losses on distribution-system lines, reduced operating efficiency of induction-motor loads, etc. This paper proposes a distribution static synchronous compensator (D-STASTCOM) to effectively improve the voltage unbalance of a distribution system connected with a microgrid system. The studied microgrid system contains various renewable-energy resources, a diesel-engine generator, and three distribution transformers with U-V and/or V-V winding connections. The simulation results show that the proposed D-STATCOM with the designed controller can effectively reduce voltage unbalance of the distribution system connected with the studied microgrid system when the distribution transformers have U-V and/or V-V winding connections.",

keywords = "Automatic voltage control, distribution static synchronous compensator, distribution transformer, Electrical engineering, Generators, Mathematical model, microgrid system, Microgrids, U-V/V-V winding connections, Voltage unbalance, Windings",

author = "Li Wang and Liu, {Wei Sheng} and Yeh, {Chuan Chieh} and Yu, {Chien Hsiang} and Lu, {Xiu Yu} and Kuan, {Bing Lin} and Wu, {Hong Yi} and Prokhorov, {Anton V.}",

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AU - Yu, Chien Hsiang

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AU - Prokhorov, Anton V.

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N2 - The U-V or V-V winding connections of two single-phase distribution transformers are widely utilized in distribution systems to deliver power to various three-phase and/or single-phase loads. Such special winding connections of distribution transformers can cause three-phase voltage unbalance in distributions systems, which could also lead to unexpected trip of ground relay, extra power losses on distribution-system lines, reduced operating efficiency of induction-motor loads, etc. This paper proposes a distribution static synchronous compensator (D-STASTCOM) to effectively improve the voltage unbalance of a distribution system connected with a microgrid system. The studied microgrid system contains various renewable-energy resources, a diesel-engine generator, and three distribution transformers with U-V and/or V-V winding connections. The simulation results show that the proposed D-STATCOM with the designed controller can effectively reduce voltage unbalance of the distribution system connected with the studied microgrid system when the distribution transformers have U-V and/or V-V winding connections.

AB - The U-V or V-V winding connections of two single-phase distribution transformers are widely utilized in distribution systems to deliver power to various three-phase and/or single-phase loads. Such special winding connections of distribution transformers can cause three-phase voltage unbalance in distributions systems, which could also lead to unexpected trip of ground relay, extra power losses on distribution-system lines, reduced operating efficiency of induction-motor loads, etc. This paper proposes a distribution static synchronous compensator (D-STASTCOM) to effectively improve the voltage unbalance of a distribution system connected with a microgrid system. The studied microgrid system contains various renewable-energy resources, a diesel-engine generator, and three distribution transformers with U-V and/or V-V winding connections. The simulation results show that the proposed D-STATCOM with the designed controller can effectively reduce voltage unbalance of the distribution system connected with the studied microgrid system when the distribution transformers have U-V and/or V-V winding connections.

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