Loss Calculation and Thermal Simulation Analysis of High-Speed PM Synchronous Generators with Rotor Topology
The machine under study is a high speed permanent magnet (PM) synchronous generator, which is driven by a micro gas turbine, whose rated power is 117 Kw at 60 000 rpm. Magnetic field distributions in generators having either semi-closed slots or closed slots are analyzed respectively when PM is magnetized by two different familiar magnetizing methods, and eddy losses in each rotor are calculated. Then, influence of copper screen on eddy loss distribution is studied, and the relationship between thickness of copper screen and loss is discussed as well. Finally, based on loss calculation, thermal performances of generators with different rotor structures mentioned above are studied, and utility of copper screen in improving temperature rise issue is demonstrated.
eddy loss permanent magnet copper screen thermal analysis
Li Weili Wang Jing Zhang Xiaochen Kou Baoquan
Harbin University of Science and Technology College of Electrical and Electronic Engineering Harbin, Harbin Institute of Technology School of Electrical and Automation Engineering Harbin, China
国际会议
太原
英文
612-616
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）