풍력발전단지의 출력변동 완화를 위한 BESS 용량 산정

Abstract

This paper presents the estimation of capacity of BESS(Battery Energy Storage System) equipped for mitigating the fluctuation of wind power generation output in Jeju island. For the analysis, two sited wind farms located in the east and west side of Jeju island are selected, and also lithium-ion type battery is adopted. To choice the optimum battery capacity, power system stability of Jeju island and output analysis of two wind farms which are HaengWon and HanKeong wind farms located in the east and west side of Jeju island are considered. To analyze the output characteristics of the proposed control scheme, two kinds of simulations are carried out by using the PSCAD/EMTDC program. One is the steady state operation under the variable speed wind, and the other is that all of wind farms in Hankyung or Haengwon wind farm shut down instantly under the rated power output. With the comparison of these results, it is useful for analyzing and mitigating the fluctuation of wind power generation output with BESS.