http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kyongho Kang,Sukjin Yu,Geunho Lee,Byeong-Hwa Lee 한국자기학회 2015 Journal of Magnetics Vol.20 No.4
This paper presents a practical method for estimation of average temperature in the permanent magnet (PM) of electric machine by using finite element analysis (FEA) and dynamo load experiment. First of all, the temperature effect of PM to the torque has been employed by FEA in order to evaluate the Temperature-Torque characteristic curve. The 1st order polynomial equation which is torque attenuation coefficient is derived by the FEA result of the Temperature-Torque curve. Next, torque saturation test with constant current condition is performed by dynamo load experiment. Then, the temperature trend can be estimated by adding the initial starting temperature using the torque attenuation coefficient and torque saturation curve. Lastly, estimated temperature is validated by infrared thermometer which measures temperature of PM surface. The comparison between the estimated result and experimental result gives a good agreement within a deviation of maximum 8 °C.
직렬형 하이브리드 차량의 동력제어전략을 고려한 발전 시스템의 열 특성에 관한 연구
강경호(Kyongho Kang),유석진(Sukjin Yu),안효철(Hyochul Ahn),최병길(Byonggil Choi),류종환(Jongwhan Ryu) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The objective of this paper is to suggest a method how to analyze thermal characteristic of engine mounted generator in a driving condition of series type HEV(Hybrid Electric Vehicle). To calculate each specific temperature of generator, first of all, reference value of torque and speed in driving condition using vehicle simulator should be acquired. After that, power-loss map of generator can be constructed by the result of electromagnetic numerical calculation from demanded torque and speed. In this paper, for the fastest calculation thermal equivalent model of generator using commercial software was adapted. The result show that in order to consider the effect of driving schedule the proposed method is very effective.