Abstract：A new maglev device-rotating field electrodynamic levitation is proposed. Rotating magnetic field (RMF) in its air-gap is generated by 3-phase AC current in the primary windings, and the interaction between RMF and secondary eddy current induced by RMF produces lift force. Stable electrodynamic magnetic levitation can be realized while the device is static. In order to analyze the device’s characteristics, electromagnetic model of this new device is established, multi-layer traveling magnetic field method is applied to solve the magnetic field distribution, and the results are used to calculate T-type equivalent circuit and state equations, designed levitation vector control system based on secondary flux oriented control. FE calculations and experiments are used to verify the field distributions, equivalent circuit parameters and lift force control results.
朱熙, 范瑜, 李硕, 秦伟, 吕刚. 旋转磁场电动式磁悬浮装置的状态方程与悬浮力控制[J]. 电工技术学报, 2011, 26(12): 1-6.
Zhu Xi, Fan Yu, Li Shuo, Qin Wei, Lü Gang. State Equations and Lift Force Control of Rotating Field Electrodynamic Levitation Device. Transactions of China Electrotechnical Society, 2011, 26(12): 1-6.
[1] 吴祥明. 磁浮列车[M]. 上海: 上海科学技术出版社. 2003. [2] Nobuo Fujii, Makoto Chida, Kokichi Ogawa. Three dimensional force of magnet wheel with revolving permanent magnets[J]. IEEE Transactions on Magnets, 1997, 30(5): 4221-4223. [3] Jonathan Bird. Thesis an investigation into the use of electrodynamic wheels for high speed ground transportation[D]. Wisconsin: University of Wisconsin, 2007. [4] 孙建忠, 白凤仙. 特种电机及其控制[M]. 北京: 中国水利水电出版社, 2005. [5] 王琳, 何全普, 马志云. 轴向磁场异步电机磁场分布研究—兼评某些量的工程计算方法[J]. 电工技术杂志, 1992(3): 6-8. [6] 关恩禄, 关沫. 三相盘式感应电机设计要点及优化设计[J]. 沈阳工业大学学报, 1999, 21(6): 502-505. [7] Nasar A S. Linear motion electric machines[M]. New York: A Wilcy-Interscience Publication, 1976. [8] 唐孝镐, 宁玉泉, 傅丰礼. 实心转子异步电机及其应用[M]. 北京: 机械工业出版社, 1991. [9] 张广溢. 直线电机静态横向边端效应研究[J]. 电机与控制学报, 1999, 3(2): 126-128. [10] 朱熙, 范瑜, 吕刚, 等. 单边盘式感应电机的数学模型与转矩分析[J]. 中国电机工程学报, 2010, 30(24): 69-74. [11] 龙遐令. 直线异步电动机等值电路的通用推导方 法[J]. 电工技术学报, 1993, 8(4): 55-60. [12] Duncan J, Eng C. Linear induction motor equivalent circuit model[J]. IEE Proceedings, 1983, 130(1): 51-57. [13] Escalada A J, Poza J, Luri S, et al. Equivalent circuit of a linear induction motor with variable parameters[C]. The 32nd Annual Conference of the IEEE Industrial Electronics Society, Paris, France, 2006: 1569-1574. [14] Gastli A. Compensation for the effect of joints in the rotor conductors of a linear induction motor[J]. IEEE Transactions on Energy Conversion, 1998, 23(2): 111-116. [15] 陈伯时. 电力拖动自动控制系统[M]. 北京: 机械工业出版社, 2000. [16] 吕刚, 范瑜, 李国国, 等. 基于解耦策略的直线感应牵引电机法向力自适应最优控制[J]. 中国电机工程学报, 2009, 29(9): 73-79. [17] 徐伟, 孙广生, 李耀华, 等. 一种新型直线异步电机参数测量方案[J]. 电工技术学报, 2007, 22(6): 54-58. [18] 卢琴芬, 方攸同, 叶云岳. 大气隙直线感应电机的力特性分析[J]. 中国电机工程学报, 2005, 25(21): 132-136.
2011, Vol. 26 
