|
|
|
| Equivalent Magnetic Circuit Analysis Model of the Steady State Characteristics for the Novel Dual-Redundancy Permanent Magnet Brushless Machine |
| Luo Zhanqiang, Liang Deliang |
| Xi’an Jiaotong University Xi’an 710049 China |
|
|
|
|
Abstract Different from the conventional dual-redundancy permanent magnet brushless machine (DRPMBLM), the windings of the novel DRPMBLM are placed in opposite series and driven by two independent sets of power electronic circuits. Thereby an electrical driven system with dual control channels is formed, and a fault tolerated operation mode could be used in this system for high reliability. On the bases of analysing the structure and principle of DRPMBLM, the mathematical model of the magnetic equivalent circuits (MEC) in each channel winding for DRPMBLM is constructed, and the air gap flux and back electromotive force and the flux matrix which consists of several permeances are derived. The practicability of this model is increased because the effects of the magnetic circuit of yoke flux paths and the nonlinear magnetic saturation are included. The validity of the mathematical model is shown by the results of the finite element analysis (FEA).
|
|
Received: 30 January 2013
Published: 05 November 2014
|
|
|
|
|
|
[1] Cao Wenping, Mecrow B C, Atkinson G J, et al. Overview of electric motor technologies used for more electric aircraft (MEA)[J]. IEEE Transactions on Industrial Electronics, 2012, 59(9): 3523 -3531.
[2] De S, Rajne M, Poosapati S, et al. Low-inductance axial flux BLDC motor drive for more electric aircraft [J]. Power Electronics IET, 2012, 5(1): 124 - 133.
[3] Rosero J A, Ortega J A, Aldabas E, et al. Moving towards a more electric aircraft[J]. IEEE Transactions on Aerospace and Electronic Systems Magazine, 2007, 22(3): 3-9.
[4] Weimer J A. The role of electric machines and drives in the more electric aircraft[C] . Electric Machines and Drives Conference, USA, 2003:
[5] 罗战强, 梁得亮, 丁文. 双余度稀土永磁无刷伺服系统的控制策略[J]. 西安交通大学学报, 2012, 46(12): 66-73. Luo Zhanqiang, Liang Deliang, Ding Wen. Control strategy for dual-redundancy rare earth permanent magnet brushless servo system[J]. Journal of Xi’an Jiaotong University, 2012, 46(12): 66-73.
[6] Zhu Z Q, Howe David, Chan C C. Improved analytical model for predicting the magnetic field distribution in brushless permanent-magnet machines [J]. IEEE Transactions on Magnetics, 2002, 38(1): 229-238.
[7] Fu W N, Ho S L, Li H L. An effective method to reduce the computing time of nonlinear time-stepping finite-element magnetic field computation[J]. IEEE Transactions on Magnetics, 2002, 38(2): 441-444.
[8] Tan Hui, Fu W N, Jiang Jianzhong. A multi-pole brushless DC motor and its analysis using time stepping finite element method[C]. The 3rd International Conference on Power Electronics and Motion Control, 2000, 3: 1308-1311.
[9] Salon S J. Finite element analysis of electrical machines[M]. Dordrecht: Kluwer Academic Publishers, 1995.
[10] 胡之光. 电机电磁场的分析与计算(修订版)[M]. 北京: 机械工业出版社, 1989.
[11] 高景德, 王祥珩, 李发海. 交流电机及其系统的分析[M]. 北京: 清华大学出版社, 2004.
[12] Kim J K, Joo S W, Hahn S C, et al. Static characteristics of linear BLDC motor using equivalent magnetic circuit and finite element method[J]. IEEE Transactions on Magnetics, 2004, 40(2): 742-745.
[13] Ostovic V. Computation of saturated permanent- magnet AC motor performance by means of magnetic circuit[J]. IEEE Transactions on Industry Applications, 1987, IA-23(5): 836-841.
[14] Laithwaite E R. Megnetic equivalent circuit for electric machines proc[J]. Proceedings of the Institution of Electrical Engineers, 1967, 144(11): 1805-1809.
[15] 王秀和. 永磁电机[M]. 北京: 中国电力出版社, 2010.
[16] 谭建成. 永磁无刷直流电机技术[M]. 北京: 机械工业出版社, 2011.
[17] 叶金虎. 现代无刷直流永磁电动机的原理和设计[M]. 北京: 科学出版社, 2007. |
|
|
|
2014, Vol. 29 
