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유광현(Gwanghyeon Ryu),이형우(Hyungwoo Lee),조수연(Suyeon Cho),오세영(Seyoung Oh),임종빈(Jongbin Im),이주(Ju Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Rotating machines are using gears to change the rotary motion into the linear motion, on the other hand, linear motors have a accurate position control and excellent dynamic characteristics because of generating a thrust force directly. But the important problem, one of the linear motor is a high thrust force ripple. Thrust force ripple has a bad effect on the position accuracy and the dynamic characteristics, so it is necessary to reduce the thrust force ripple. Cogging is one of the cause that affect thrust force ripple. Cogging has some connection with the GCD between pole pitch and teeth pitch It is proposed method to reduce a thrust ripple of the linear motor that chamfering, skew, and so on. In this paper, the module phase set shift(MPSS) is used to reduce a thrust force ripple that has a similar effect to skew.
Newton법을 이용한 IPMSM의 고정자 저항 고려 최대 출력 제어
조수연(Suyeon Cho),김승주(Seungjoo Kim),함상환(Sanghwan Ham),유광현(Gwanghyeon Ryu),안한웅(Hanwoong Ahn),이주(Ju Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
This paper presents maximum power control of IPMSM for EV/HEV. Conventional maximum power control of IPMSM approximated the stator resistance. This common assumption was allowed to high-voltage and low-current type motor. But, since IPMSM for EV/HEV have low voltage source and large current capacity, the lack of control voltage is caused by the assumption of stator resistance. And it makes nonlinear characteristics of the motor control, especially overmodulation in PWM inverter. So it needs to consider voltage drop between the stator resistance. In this paper, voltage equation including the stator resistance was used for the maximum power control of IPMSM. For solving complexities of this equation, Newton method was used. Finally, the proposed method was verified to compare with the conventional method by matlab/simulink simulation results.