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냉각수 온도와 대기온도 영향에 따른 OBC내 전자부품의 온도에 관한 실험적 연구
송백기(Baikkee Song),오성민(Sungmin Oh),강재준(Jaejun Kang),김승중(SeungJoong Kim) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
This paper discusses a temperature change of electronic components in OBC(On-board Battery Charger) according to the cooling water and the ambient temperature. Each electronic component has a temperature limit for satisfying a operating condition and a lifetime of the OBC. Thus, a power control should be optimized to prevent electronic components from overheating. As a result, to predict how much the power produced at a certain temperature condition, the cooling water temperature and the ambient temperature which are dominant factor of electronic component temperature should be defined exactly. In this reason, temperature map--power versus temperature (cooling water and ambient temperature)--is required. However, drawing a temperature map through experiment at every temperature condition is costly and time-consuming. In this paper, therefore, as analyze the temperature change of electronic component based on cooling water temperature and ambient temperature through experiment, temperature of temperature sensor which is one of the electronic components of OBC is calculated and then power at certain temperature condition can be predicted accurately. At the conclusion, actual power and calculated power are shown to validate temperature variation according to temperature conditions.