Design Considerations of Tubular Transverse Flux Linear Machines for Electromagnetic Launch Applications

被引:12
作者
Wang, Qian [1 ]
Hu, Jianhui [1 ]
Zhang, Juan [2 ]
Liu, Chengjun [1 ]
Li, Yong [1 ]
Zou, Jibin [1 ]
Zhao, Hui [3 ]
机构
[1] Harbin Inst Technol, Dept Elect Engn, Harbin 150001, Peoples R China
[2] Ind Technol Res Inst, Harbin 150001, Peoples R China
[3] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
关键词
Electromagnetic launch (EML); linear machine; optimization; thermal modeling; transverse flux machine; MOTOR; PERFORMANCE;
D O I
10.1109/TPS.2015.2413772
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Due to the achievable high force densities, permanent magnet linear machines with transverse flux configurations are gaining increased interest in electromagnetic launch (EML) applications, in which the force density demand is crucial. This paper deals with the design of a tubular transverse flux linear machine (TFLM) targeting EML applications, and the issues pertinent to its topology selection, design optimization, and thermal modeling are discussed. By overall comparison of practical topologies and technologies of the TFLM, a tubular moving-magnet topology with separated flux paths is believed to be more appropriate. Design optimization is then performed to maximize the thrust force under specific volumetric constraints. It is shown that the thrust force is more sensitive to the stator segment length, instead of the magnet thickness. Regarding the overload requirement inherent in EML systems, special focus is given on the thermal characteristics of the TFLM at overload conditions, and it is proved that the machine shows appreciable overload capability. Measurements carried out on a prototype TFLM have validated the predictions.
引用
收藏
页码:1248 / 1253
页数:6
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