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http://dx.doi.org/10.7471/ikeee.2019.23.1.188

Outage Rate Calculating Method of Energy Storage System for the Application on Power System Operation  

Song, Seung-Heon (Smart Grid Research Center, Dept. of Electrical Engineering, Chonbuk National University)
Choi, Woo-Yeong (Smart Grid Research Center, Dept. of Electrical Engineering, Chonbuk National University)
Kook, Kyung-Soo (Smart Grid Research Center, Dept. of Electrical Engineering, Chonbuk National University)
Publication Information
Journal of IKEEE / v.23, no.1, 2019 , pp. 188-192 More about this Journal
Abstract
As the contribution of the Energy Storage System (ESS) on the power system operations has increased, it is required to secure the reliability on the capacity of ESS and this needs to consider the outage rate in calculating the available capacity of ESS. However, the existing method of calculating the outage rate does not consider the configuration of ESS and this does not accurately calculate the available capacity of ESS. For this, this paper analyzes the structural characteristics of ESS in Korean power system and proposes a method to calculate the outage rate of ESS. Through the study cases adopting the Korea Electric Power Corporation (KEPCO) ESS for providing the frequency response service, the effectiveness of the proposed method verified.
Keywords
Energy Storage System (ESS); Frequency Regulation Controller (FRC); Power Conversion System (PCS); Outage Rate; Korean Power System;
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