Dynamic Voltage Stability Assessment in Remote Island Power System with Renewable Energy Resources and Virtual Synchronous Generator

Akito Nakadomari; Ryo Miyara; Talal Alharbi; Natarajan Prabaharan; Shriram Srinivasarangan Rangarajan; Edward Randolph Collins; Tomonobu Senjyu

doi:10.3390/en14185851

Energies (Sep 2021)

Dynamic Voltage Stability Assessment in Remote Island Power System with Renewable Energy Resources and Virtual Synchronous Generator

Akito Nakadomari,
Ryo Miyara,
Talal Alharbi,
Natarajan Prabaharan,
Shriram Srinivasarangan Rangarajan,
Edward Randolph Collins,
Tomonobu Senjyu

Affiliations

Akito Nakadomari: Department of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan
Ryo Miyara: Department of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan
Talal Alharbi: Department of Information Technology, College of Computer and Information Sciences, Majmaah University, Al Majmaah 11952, Saudi Arabia
Natarajan Prabaharan: Department of Electrical and Electronics Engineering, SASTRA Deemed University, Thanjavur 613401, India
Shriram Srinivasarangan Rangarajan: Department of Electrical and Electronics Engineering, SR University, Warangal 506001, India
Edward Randolph Collins: Department of Electrical and Computer Engineering, Clemson University, Clemson, SC 29634, USA
Tomonobu Senjyu: Department of Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami, Okinawa 903-0213, Japan

DOI: https://doi.org/10.3390/en14185851
Journal volume & issue: Vol. 14, no. 18
p. 5851

Abstract

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Increasing the proportion of renewable energy generations in remote island power systems is becoming essential for realizing decarbonized society. However, since inverter-connected renewable energies have different generation characteristics from conventional generators, the massive penetration can adversely affect system stability. In particular, fault events in such weak remote systems can cause fast voltage collapse, and there is a need to assess dynamic voltage stability. This study attempts dynamic voltage stability assessment using the critical boundary index (CBI) and investigates the impact of the virtual synchronous generator (VSG) on dynamic voltage stability. A remote island power system and VSG are modeled, and time-domain simulations are conducted with case studies of fault events. The simulation results show the potential of CBI to use for dynamic voltage stability assessment. Furthermore, the VSG can provide suitable power output during fault events and improve dynamic voltage stability.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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