Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability

Liu, Hui; Su, Jinshuo; Qi, Junjian; Wang, Ni; Li, Canbing

doi:10.1109/ACCESS.2019.2893409

Title: Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability

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Abstract

Maintaining power system stability is becoming urgent due to the large-scale interconnection of power grids and the high penetration of uncertain renewable energy sources. The excitation control and governor control of synchronous generators have been considered as two crucial measures for enhancing the power system stability. However, a major challenge is to simultaneously achieve global asymptotic stability (GAS), voltage regulation (VR), and power regulation (PR) in the excitation and governor control. In this paper, a Lyapunov-based decentralized control (LBC) is proposed to address this challenge. The time-derivative of the Lyapunov function is designed by the feedback control of synchronous generators in order to guarantee GAS. VR and PR are ensured by considering voltage and power deviations as the feedback variables. The simulation results on the New-England ten-machine power system validate the effectiveness of the proposed LBC in improving power system transient stability and simultaneously achieving VR and PR. Although the proportional-integral- and power system stabilizer-based control can also perform VR and PR, the proposed control has much better dynamic performance and can more significantly improve the system transient stability.

Authors:

^[1]; Su, Jinshuo ^[1];

^[2]; Wang, Ni ^[1];

^[3]

Guangxi Univ. (China)
Univ. of Central Florida, Orlando, FL (United States)
Hunan Univ. (China)

Publication Date:: 2019-01-21

Research Org.:: Univ. of Central Florida, Orlando, FL (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Natural Science Foundation of China (NSFC)

OSTI Identifier:: 1592009

Grant/Contract Number:: EE0007327

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Access

Additional Journal Information:: Journal Volume: 7; Journal ID: ISSN 2169-3536

Publisher:: IEEE

Country of Publication:: United States

Language:: English

Subject:: 24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats


                    Liu, Hui, Su, Jinshuo, Qi, Junjian, Wang, Ni, and Li, Canbing. Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability.  United States: N. p., 2019. 
Web.  doi:10.1109/ACCESS.2019.2893409.

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                    Liu, Hui, Su, Jinshuo, Qi, Junjian, Wang, Ni, & Li, Canbing. Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability.  United States.  https://doi.org/10.1109/ACCESS.2019.2893409

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                    Liu, Hui, Su, Jinshuo, Qi, Junjian, Wang, Ni, and Li, Canbing. Mon .  
"Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability".  United States.  https://doi.org/10.1109/ACCESS.2019.2893409.  https://www.osti.gov/servlets/purl/1592009.

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@article{osti_1592009,

  title        = {Decentralized Voltage and Power Control of Multi-Machine Power Systems With Global Asymptotic Stability},

  author       = {Liu, Hui and Su, Jinshuo and Qi, Junjian and Wang, Ni and Li, Canbing},

  abstractNote = {Maintaining power system stability is becoming urgent due to the large-scale interconnection of power grids and the high penetration of uncertain renewable energy sources. The excitation control and governor control of synchronous generators have been considered as two crucial measures for enhancing the power system stability. However, a major challenge is to simultaneously achieve global asymptotic stability (GAS), voltage regulation (VR), and power regulation (PR) in the excitation and governor control. In this paper, a Lyapunov-based decentralized control (LBC) is proposed to address this challenge. The time-derivative of the Lyapunov function is designed by the feedback control of synchronous generators in order to guarantee GAS. VR and PR are ensured by considering voltage and power deviations as the feedback variables. The simulation results on the New-England ten-machine power system validate the effectiveness of the proposed LBC in improving power system transient stability and simultaneously achieving VR and PR. Although the proportional-integral- and power system stabilizer-based control can also perform VR and PR, the proposed control has much better dynamic performance and can more significantly improve the system transient stability.},

  doi          = {10.1109/ACCESS.2019.2893409},

  journal      = {IEEE Access},

  number       = ,

  volume       = 7,

  place        = {United States},

  year         = {2019},

  month        = {1}

}

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