| Title |
A Guide for the life of ESS battery stabilizing power system on the Analysis of power system environment |
| Authors |
노상수(Sang-Su Noh) ; 한재웅(Jae-Woong Han) ; 조민승(Min-Seung Cho) ; 송화창(Hwa-Chang Song) |
| DOI |
https://doi.org/10.5370/KIEE.2023.72.3.374 |
| Keywords |
ESS Battery; Stabilizing Power System; Frequency Adjustment Dead Zone; Speed Turning Rate |
| Abstract |
KEPCO is pursing 970MW ESS(Energy Storage System, 전기저장장치) for system stabilization in order to maintain stable frequency due to expansion of renewable energy and to alleviate power generation constraints on the East Coast. The ESS battery charging and discharging usage pattern depends on the frequency variation trend and the frequency of generator dropout, and the battery life is calculated according to the usage pattern and the appropriate installation quantity is calculated based on this. In this paper, the battery life calculation standard suitable for ESS stabilizing power system is established considering the frequency in the steady state and the generator dropout in the transient state. It is expected that large-scale ESS will be constructed efficiently and operated stably by calculating and applying appropriate ESS battery installation quantity which has best value for actual operation. |