Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system

Sai Gopal Vennelaganti; Nilanjan Ray Chaudhuri

doi:10.1109/PESGM41954.2020.9281582

Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system

Sai Gopal Vennelaganti, Nilanjan Ray Chaudhuri

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, requirement on frequency droop coefficients for the stability of AC-MTDC system is studied. Two models, each with a certain level of modeling detail are employed. One is a simplified Nth-order model and the other is detailed full-order model. Using the Nth-order model, stability boundaries for several cases are numerically constructed in the space of frequency droop coefficients. Based on observation made form these boundaries, necessary and sufficient condition for stability is hypothesized. The 'Stability Hypothesis' is then proved for a couple of specific cases using Lyapunov method. Finally, the detailed model is used to validated the hypothesis in a practical setup through time-domain simulations.

Original language	English (US)
Title of host publication	2020 IEEE Power and Energy Society General Meeting, PESGM 2020
Publisher	IEEE Computer Society
ISBN (Electronic)	9781728155081
DOIs	https://doi.org/10.1109/PESGM41954.2020.9281582
State	Published - Aug 2 2020
Event	2020 IEEE Power and Energy Society General Meeting, PESGM 2020 - Montreal, Canada Duration: Aug 2 2020 → Aug 6 2020

Publication series

Name	IEEE Power and Energy Society General Meeting
Volume	2020-August
ISSN (Print)	1944-9925
ISSN (Electronic)	1944-9933

Conference

Conference	2020 IEEE Power and Energy Society General Meeting, PESGM 2020
Country/Territory	Canada
City	Montreal
Period	8/2/20 → 8/6/20

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Nuclear Energy and Engineering
Renewable Energy, Sustainability and the Environment
Electrical and Electronic Engineering

UN SDGs

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

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10.1109/PESGM41954.2020.9281582

Cite this

Vennelaganti, S. G., & Chaudhuri, N. R. (2020). Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system. In 2020 IEEE Power and Energy Society General Meeting, PESGM 2020 Article 9281582 (IEEE Power and Energy Society General Meeting; Vol. 2020-August). IEEE Computer Society. https://doi.org/10.1109/PESGM41954.2020.9281582

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title = "Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system",

abstract = "In this paper, requirement on frequency droop coefficients for the stability of AC-MTDC system is studied. Two models, each with a certain level of modeling detail are employed. One is a simplified Nth-order model and the other is detailed full-order model. Using the Nth-order model, stability boundaries for several cases are numerically constructed in the space of frequency droop coefficients. Based on observation made form these boundaries, necessary and sufficient condition for stability is hypothesized. The 'Stability Hypothesis' is then proved for a couple of specific cases using Lyapunov method. Finally, the detailed model is used to validated the hypothesis in a practical setup through time-domain simulations.",

author = "Vennelaganti, {Sai Gopal} and Chaudhuri, {Nilanjan Ray}",

note = "Funding Information: This work was supported by funding from NSF Award ECCS 1656983. Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE Power and Energy Society General Meeting, PESGM 2020 ; Conference date: 02-08-2020 Through 06-08-2020",

year = "2020",

month = aug,

day = "2",

doi = "10.1109/PESGM41954.2020.9281582",

language = "English (US)",

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Vennelaganti, SG & Chaudhuri, NR 2020, Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system. in 2020 IEEE Power and Energy Society General Meeting, PESGM 2020., 9281582, IEEE Power and Energy Society General Meeting, vol. 2020-August, IEEE Computer Society, 2020 IEEE Power and Energy Society General Meeting, PESGM 2020, Montreal, Canada, 8/2/20. https://doi.org/10.1109/PESGM41954.2020.9281582

Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system. / Vennelaganti, Sai Gopal; Chaudhuri, Nilanjan Ray.
2020 IEEE Power and Energy Society General Meeting, PESGM 2020. IEEE Computer Society, 2020. 9281582 (IEEE Power and Energy Society General Meeting; Vol. 2020-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system

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N2 - In this paper, requirement on frequency droop coefficients for the stability of AC-MTDC system is studied. Two models, each with a certain level of modeling detail are employed. One is a simplified Nth-order model and the other is detailed full-order model. Using the Nth-order model, stability boundaries for several cases are numerically constructed in the space of frequency droop coefficients. Based on observation made form these boundaries, necessary and sufficient condition for stability is hypothesized. The 'Stability Hypothesis' is then proved for a couple of specific cases using Lyapunov method. Finally, the detailed model is used to validated the hypothesis in a practical setup through time-domain simulations.

AB - In this paper, requirement on frequency droop coefficients for the stability of AC-MTDC system is studied. Two models, each with a certain level of modeling detail are employed. One is a simplified Nth-order model and the other is detailed full-order model. Using the Nth-order model, stability boundaries for several cases are numerically constructed in the space of frequency droop coefficients. Based on observation made form these boundaries, necessary and sufficient condition for stability is hypothesized. The 'Stability Hypothesis' is then proved for a couple of specific cases using Lyapunov method. Finally, the detailed model is used to validated the hypothesis in a practical setup through time-domain simulations.

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Impact of primary frequency droop coefficients on lyapunov stability of linearized asynchronous AC-MTDC system

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UN SDGs

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