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주파수추종 운전 적용을 위한 BESS의 운용 방법 및 효과
조성민(Sung-Min Cho),장병훈(Byung-Hoon Jang),윤용범(Yong-Bum Yoon),전웅재(Woong-jae Jeon),김철우(Chulwoo Kim) 대한전기학회 2015 전기학회논문지 Vol.64 No.1
As the development of Battery Energy Storage System(BESS) and the increasing of intermittent energy sources like wind power and photovoltaic, the application of BESS in load frequency control is considered as an effective method. To evaluate the effectiveness of BESS application in frequency control, we defined a governor free model of BESS to conduct dynamic simulation. Using the BESS dynamic model, we implemented the power system dynamic model including steam, gas and hydro turbine generators. In this paper we study the control performance of BESS in primary frequency control. The effect of BESS speed regulation rate and response time on governor free operation is investigated. In addition, we compared BESS from steam turbine generator in view point of frequency regulation.
홍성호(Sung Ho Hong),이상현(Sang hyun Lee),박상태(Sang Tae Park),유현종(Hyun Jong Yu),전웅재(Woong Jae Jeon) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.4
This study presents on the analysis fire hazards of drum type electric washing machine. In order to analyze fire hazards fire experiment is conducted. The fire experiment is conducted to simulate under the normal condition and abnormal condition. The experiment under the abnormal condition is simulated in safety device failure, situation of accumulated dust and tracking phenomenon caused by humidity. The results show that fire hazard is high at the abnormal condition. In this paper, we suggest to use the safety device of low operating temperature in electric washing machine for reducing fire hazard.