An Operation Strategy of ESS for Enhancing the Frequency Stability of the Inverter-Based Jeju Grid

Jin-Yong Jung, Yoon-Sung Cho, Jae-Hyun Min and Hwachang Song
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Jin-Yong Jung: School of Electronic and Electrical Engineering, Daegu Catholic University, Gyeongsan 38430, Korea
Yoon-Sung Cho: School of Electronic and Electrical Engineering, Daegu Catholic University, Gyeongsan 38430, Korea
Jae-Hyun Min: System Planning Department, KEPCO, Naju-si 58322, Korea
Hwachang Song: Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea

Energies, 2022, vol. 15, issue 9, 1-24

Abstract: As environmental pollution deteriorates, the acceleration of decarbonization worldwide is underway. Several countries, including Korea, are incorporating new and renewable energy into existing systems, and various methods of decarbonization are being researched. With changes in the control environment, the expansion of the system linkage of new and renewable energy can cause system instability problems. This paper introduces an operation plan that uses the fast response characteristics of energy storage system(s) (ESS) to improve stability and review system stability as a result of the expansion of new and renewable energy on Jeju Island. Frequency stability was ensured through an analysis of frequency response characteristics in the event of a system accident, and an efficient ESS operation plan was simulated by changing the ESS parameters. Through this simulation, stable ESS operation and hunting in the frequency recovery process were minimized through cooperation between the existing and new ESS via a wide dead-band range and speed adjustment rate correction, and the lowest frequency was improved.

Keywords: ESS; frequency stability; renewable energy; HVDC; coordinated control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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