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1.发明公开公开(公告)号：US20230147692A1
公开(公告)日：2023-05-11
申请号：US17912884
申请日：2020-04-16
发明人： Gaohua CHEN , Jianghua FENG , Rongjun DING , Yijing XU , Yu SHI , Liang HAN , Yanhui WEN , Yonghui NAN , Anfeng ZHAO , Haojiong LV , Kai FANG , Huadong LIU , Hui SHEN , Shu CHENG , Jungui SU , Zhenbang ZHOU , Cheng LI
CPC分类号： B60L13/03 , B60L53/18 , B60L53/20 , B60L13/04 , B61B13/08 , B61L15/0018 , H02J50/10 , B60L2240/12
摘要： A method and system device for performing multi-carrying of a linear motor for magnetic levitation transportation is provided. With the method for performing multi-carrying of a linear motor for magnetic levitation transportation, linear motor traction power information and other linear motor carried information are generated, and the other linear motor carried information is transmitted through a channel for carrying the linear motor traction power information that is constructed based on a linear motor structure.
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公开(公告)号：US20170338765A1
公开(公告)日：2017-11-23
申请号：US15507459
申请日：2015-09-02
发明人： Jianghua FENG , Jing SHANG , Junfeng XU , Yuliang WEN , Xiong LIU , Chaoyang ZHANG , Lei XIAO , Yaping HE , Yonghui NAN , Hanfeng ZHENG
CPC分类号： H02P29/662 , G01K7/427 , G01K13/08 , G01R31/343 , H02K21/00 , H02K2211/00 , H02P6/08 , H02P29/66 , H02P29/67 , H02P2207/05
摘要： A rotor temperature monitoring method and system for a permanent magnet synchronous motor are provided. According to the method and system, an a-phase line current and a b-phase line current of a stator of a permanent magnet synchronous motor are obtained as a first line current and a second line current; further, a line voltage between the a-phase and the b-phase of the stator is obtained and a rotating speed of the rotor of the permanent magnet synchronous motor is obtained; and then, the first line current, the second line current, the line voltage, the rotating speed of the rotor, an inductance parameter of the permanent magnet synchronous motor and a temperature characteristic equation of a permanent magnet of the rotor are substituted into a preset rotor permanent magnet temperature expression to calculate and obtain the temperature of the rotor.
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