Evaluating the Influence of Momentary Cessation Mode in Inverter-Based Distributed Generators on Power System Transient Stability

Heewon Shin; Jaeyeop Jung; Seungchan Oh; Kyeon Hur; Kenji Iba; Byongjun Lee

doi:10.1109/TPWRS.2019.2942349

Evaluating the Influence of Momentary Cessation Mode in Inverter-Based Distributed Generators on Power System Transient Stability

Heewon Shin, Jaeyeop Jung, Seungchan Oh, Kyeon Hur, Kenji Iba, Byongjun Lee

School of Electrical Engineering

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

15 Citations (Scopus)

Abstract

The responses of an inverter-based distributed generator (IBDG) to abnormal voltage and frequency are different from those of a conventional generator because of the inverter's operating modes. In particular, although the momentary cessation (MC) mode is essential to protecting the distribution system, the MC mode can affect the power system transient stability by temporarily ceasing significant amounts of IBDG generation. To mitigate these negative effects, this study analyzed the impacts of MC capability on the power system transient stability. First, the transient stability was analyzed in relation to MC capability using the single-machine equivalent (SIME) method. A critical MC operating point (CMCOP) was then proposed to assess the severity of a transient impact and to secure the transient stability under the contingency conditions. A case study based on the Korean power system validated the feasibility and effectiveness of the proposed method.

Original language	English
Article number	8844847
Pages (from-to)	1618-1626
Number of pages	9
Journal	IEEE Transactions on Power Systems
Volume	35
Issue number	2
DOIs	https://doi.org/10.1109/TPWRS.2019.2942349
Publication status	Published - 2020 Mar

Keywords

Power system transient stability
distributed generator
momentary cessation
single-machine equivalent

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/TPWRS.2019.2942349

Cite this

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title = "Evaluating the Influence of Momentary Cessation Mode in Inverter-Based Distributed Generators on Power System Transient Stability",

abstract = "The responses of an inverter-based distributed generator (IBDG) to abnormal voltage and frequency are different from those of a conventional generator because of the inverter's operating modes. In particular, although the momentary cessation (MC) mode is essential to protecting the distribution system, the MC mode can affect the power system transient stability by temporarily ceasing significant amounts of IBDG generation. To mitigate these negative effects, this study analyzed the impacts of MC capability on the power system transient stability. First, the transient stability was analyzed in relation to MC capability using the single-machine equivalent (SIME) method. A critical MC operating point (CMCOP) was then proposed to assess the severity of a transient impact and to secure the transient stability under the contingency conditions. A case study based on the Korean power system validated the feasibility and effectiveness of the proposed method.",

keywords = "Power system transient stability, distributed generator, momentary cessation, single-machine equivalent",

author = "Heewon Shin and Jaeyeop Jung and Seungchan Oh and Kyeon Hur and Kenji Iba and Byongjun Lee",

note = "Funding Information: Manuscript received May 8, 2019; revised July 15, 2019 and August 13, 2019; accepted September 14, 2019. Date of publication September 19, 2019; date of current version February 26, 2020. This work was supported in part by the Korea Electric Power Corporation under Grant R17XA05-4 and in part by the Human Resource Program in energy technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), with financial resources from the Ministry of Trade, Industry, and Energy, Republic of Korea under Grant 20174030201820. Paper no. TPWRS-00636-2019. (Corresponding author: Byongjun Lee.) H. Shin, J. Jung, and B. Lee are with the Department of Electrical Engineering and Electronics, Korea University, Seongbuk-gu 02841, South Korea (e-mail: redcore451@korea.ac.kr; babyyg@korea.ac.kr; leeb@korea.ac.kr). Publisher Copyright: {\textcopyright} 1969-2012 IEEE.",

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AU - Hur, Kyeon

AU - Iba, Kenji

AU - Lee, Byongjun

N1 - Funding Information: Manuscript received May 8, 2019; revised July 15, 2019 and August 13, 2019; accepted September 14, 2019. Date of publication September 19, 2019; date of current version February 26, 2020. This work was supported in part by the Korea Electric Power Corporation under Grant R17XA05-4 and in part by the Human Resource Program in energy technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), with financial resources from the Ministry of Trade, Industry, and Energy, Republic of Korea under Grant 20174030201820. Paper no. TPWRS-00636-2019. (Corresponding author: Byongjun Lee.) H. Shin, J. Jung, and B. Lee are with the Department of Electrical Engineering and Electronics, Korea University, Seongbuk-gu 02841, South Korea (e-mail: redcore451@korea.ac.kr; babyyg@korea.ac.kr; leeb@korea.ac.kr). Publisher Copyright: © 1969-2012 IEEE.

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N2 - The responses of an inverter-based distributed generator (IBDG) to abnormal voltage and frequency are different from those of a conventional generator because of the inverter's operating modes. In particular, although the momentary cessation (MC) mode is essential to protecting the distribution system, the MC mode can affect the power system transient stability by temporarily ceasing significant amounts of IBDG generation. To mitigate these negative effects, this study analyzed the impacts of MC capability on the power system transient stability. First, the transient stability was analyzed in relation to MC capability using the single-machine equivalent (SIME) method. A critical MC operating point (CMCOP) was then proposed to assess the severity of a transient impact and to secure the transient stability under the contingency conditions. A case study based on the Korean power system validated the feasibility and effectiveness of the proposed method.

AB - The responses of an inverter-based distributed generator (IBDG) to abnormal voltage and frequency are different from those of a conventional generator because of the inverter's operating modes. In particular, although the momentary cessation (MC) mode is essential to protecting the distribution system, the MC mode can affect the power system transient stability by temporarily ceasing significant amounts of IBDG generation. To mitigate these negative effects, this study analyzed the impacts of MC capability on the power system transient stability. First, the transient stability was analyzed in relation to MC capability using the single-machine equivalent (SIME) method. A critical MC operating point (CMCOP) was then proposed to assess the severity of a transient impact and to secure the transient stability under the contingency conditions. A case study based on the Korean power system validated the feasibility and effectiveness of the proposed method.

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Evaluating the Influence of Momentary Cessation Mode in Inverter-Based Distributed Generators on Power System Transient Stability

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Keywords

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