中国电机工程学报2011，Vol.31Issue(30)：85-92,8.
超高速永磁同步发电机的多复合结构电磁场及温度场计算
Calculation of Electromagnetic Field and Temperature Field in Super High Speed Permanent Magnet Generator With Composite Structures
摘要
Abstract
Taking a 117 kW 60 000 r/min super high speed permanent magnet generator as an example,the mathematical model for 2D transient electromagnetic field analysis was established,and then magnetic flux lines and air-gap flux density were analyzed by using circuit-field coupled time-stepping finite-element method.The variations of terminal voltage and windings current with time were obtained,which are compared with the test data.With CFD principles and heat transfer theories,the temperature distributions of generator and cooling medium were calculated by using the 3D finite volume method.Then,the eddy current loss distributions in generator rotors with protection components composed of alloy sleeve,copper layer,carbon fiber composite materials,and ceramics were analyzed,and the influences of the conductivity of carbon fiber composite materials and the thickness of copper shield layer on eddy current loss were given.From the comparisons of components temperatures in generator with different rotor sleeves,the effects of sleeve materials and structures on machine temperature distributions were obtained.The obtained conclusion provides certain guidance for the designing of super high speed PM machine.关键词
超高速永磁发电机/涡流损耗/碳纤维复合材料/陶瓷Key words
super high speed permanent magnet generator/eddy current loss/carbon fiber composite/ceramic分类
信息技术与安全科学引用本文复制引用
张晓晨,李伟力,邱洪波,程树康..超高速永磁同步发电机的多复合结构电磁场及温度场计算[J].中国电机工程学报,2011,31(30):85-92,8.基金项目
国家863高技术基金项目（2007AA050501) （）
