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HEV Traction 모터의 출력밀도 향상 방법 및 성능 추정에 관한 연구
진창성(Changsung Jin),이진주(Jinju Lee),주기환(Kihwan Ju),김재용(Jaeyong Kim) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
Recently, it has to design the traction motor to raise power density because of many necessary parts for Hybrid Electric Vehicle (HEV). Power of motor is made up of the torque and speed. If the motor which is the same size and shape is designed to raise speed, power and power density are increase. However, it is not easy to control interior permanent magnet (IPM) motor at high speed due to voltage constraint. So, this paper proposed simple method to solve the high speed control problem in the motor design stage, when it assumes that motor drive system has to have current margin. Basic idea is changing number of turns and current while retaining the same magnetomotive force (MMF) in this paper. Also, performances of motor are related to the operating temperature which is affected by copper loss and core loss. So, temperature saturation test is administered to the motor to measure the maximum performance of the motor. However, it is not easy to measure the performances of motor due to the test takes longer. Therefore, this paper proposes the method to estimate the performances using the several times tests and simple equations.
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