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강재준(Jaejun Kang),노동윤(Dongyoon Noh) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
In this paper, design method of EMC filter is suggested for satisfying vehicle electrical device standard ES96200 and commercial electricity standard IEC 61000-4. For a more optimized design of EMC Filter, simulation using 2D and 3D modeling including parasitic component is analyzed. The performance of EMC Filter is evaluated to measuring conducted noise and radiated noise.
전기자동차용 차량 탑재형 충전기의 수명과 발열을 고려한 링크 캐패시터 설계방법
노동윤(Dongyoon Noh),유석정(Seokjeong Yoo),강재준(Jaejun Kang),문형태(Hyungtae Moon) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Using fossil fuels (oil, coal, natural gas), air pollution by exhaust gases has been prominent as a serious social issue. In particular, the recent automobile transportation accounted for more than 95%, it cause the global warming and acid rains. Applies in developed countries such as the United states, Europe, investment for eco-friendly cars, including the stringent emissions regulations with HEV(Hybrid Electric Vehicle), EV(Electric Vehicle), FCEV(Fuel Cell Electric Vehicle) is made. Electric Vehicle operates by battery power instead of an internal combustion engine. To charge the battery, It is necessary to On-board charger (OBC). In particular, the size and stability and service life should be considered, and it is essential to the high power density and a long life-time. Generally, OBC consists of two configurations (PFC, DC/DC converter). A PFC stage is for power factor correction and DC/DC converter is for isolation and charging. In order to minimize the loss, the link capacitor is used a high-voltage capacitor and power density capacitors, high voltage electrolytic capacitor. However, a life-cycle of electrolytic capacitor depends on ripple current, ambient temperature and etc. So, in this paper, the charger for long life electrolytic capacitors for high-voltage link capacitor of the optimal design method is proposed.
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.