Research on control strategies for doubly salient electromagnetic machine

The doubly salient electromagnetic machine (DSEM) is a kind of variable reluctance machine, which is different from the conventional AC electric machines. The standard angle control and the three-state angle-advanced control are traditional control strategies for DSEM, with dead zone existing. Six-SAA (SSAA) control is a newly proposed control strategy with no dead zone. Compared to traditional control strategies, it can increase output torque, and reduce the torque ripple. However, it is hard to select proper advanced angles in SSAA control. In this study, a 12/8-pole DSEM has been studied. Then, several control strategies for DSEM are presented, and the operating principles are analysed in detail. After that, a new control strategy is proposed, and its characteristic during commutation stage is analysed. Besides, the optimal advanced angles are deduced, with its variation characteristics, and the comparison of these control strategies are conducted by finite element simulation. With the proposed control strategy, a higher-output torque can be acquired in a wide-speed range, and meanwhile, the selection of advanced angles is simplified. Finally, the theoretical analysis is verified by simulations and experimental results.

[1]  Zhe Chen,et al.  A Fault-Tolerant Parallel Structure of Single-Phase Full-Bridge Rectifiers for a Wound-Field Doubly Salient Generator , 2013, IEEE Transactions on Industrial Electronics.

[2]  Lei Zhang,et al.  Control and operation of a 12/8-pole doubly salient electro-magnetic motor drive based on CPLD , 2011, 2011 International Conference on Electrical and Control Engineering.

[3]  Bo Zhou,et al.  Considerations of harmonic and torque ripple in a large power doubly salient electro-magnet motor drive , 2012, 2012 Asia-Pacific Symposium on Electromagnetic Compatibility.

[4]  Thomas A. Lipo,et al.  A novel permanent magnet motor with doubly salient structure , 1992 .

[5]  Vladan P. Vujičić,et al.  Minimization of Torque Ripple and Copper Losses in Switched Reluctance Drive , 2012, IEEE Transactions on Power Electronics.

[6]  Le Zhang,et al.  Analysis and Suppression of Torque Ripple for Doubly Salient Electro-Magnetic Motor , 2009, 2009 IEEE Industry Applications Society Annual Meeting.

[7]  Thomas A. Lipo,et al.  Sizing and optimal design of doubly salient permanent magnet motors , 1993 .

[8]  R. W. De Doncker,et al.  Control for Polyphase Switched Reluctance Machines to Minimize Torque Ripple and Decrease Ohmic Machine Losses , 2012, IEEE Transactions on Power Electronics.

[9]  K.T. Chau,et al.  Torque ripple minimization of doubly salient permanent-magnet motors , 2005, IEEE Transactions on Energy Conversion.

[10]  Ma Xiaohan.  Researches on the Three-phase Six-state Control Strategy of Doubly Salient Electro-magnetic Motors , 2013 .

[11]  Yan Yang-guang.  Advanced Angle Control Mode for Electro-magnetic Doubly Salient Machine , 2007 .

[12]  E. Hoang,et al.  Thermal-electromagnetic analysis of a fault-tolerant dual-star flux-switching permanent magnet motor for critical applications , 2011 .

[13]  Keunsoo Ha,et al.  Single-Controllable-Switch-Based Switched Reluctance Motor Drive for Low Cost, Variable-Speed Applications , 2012, IEEE Transactions on Power Electronics.

[14]  K. T. Chau,et al.  Nonlinear magnetic circuit analysis for a novel stator-doubly-fed doubly-salient machine , 2002 .

[15]  Hao Tian,et al.  Phase-shifted and interleaved angle control for doubly salient electro-magnetic machine , 2014, 2014 14th International Conference on Control, Automation and Systems (ICCAS 2014).

[16]  Johannes J. H. Paulides,et al.  Modeling of Flux Switching Permanent Magnet Machines With Fourier Analysis , 2010, IEEE Transactions on Magnetics.

[17]  Yangguang Yan,et al.  A New Topology of Low Speed Doubly Salient Brushless DC Generator for Wind Power Generation , 2012, IEEE Transactions on Magnetics.

[18]  K. T. Chau,et al.  Design, modeling and analysis of a brushless doubly-fed doubly-salient machine for electric vehicles , 2005 .

[19]  Thomas A. Lipo,et al.  A NEW DOUBLY SALIENT PERMANENT MAGNET MOTOR FOR ADJUSTABLE SPEED DRIVES , 1994 .

[20]  D. C. J. Krop,et al.  Analysis of a novel double sided flux switching linear motor topology , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[21]  Guo Sheng Li,et al.  An Optimized Angle Control Strategy for Doubly Salient Electro-Magnetic Motor Based on the Half-Bridge Converter , 2011 .

[22]  Li Sun,et al.  Iron Loss Analysis of Doubly Salient Brushless DC Generators , 2015, IEEE Transactions on Industrial Electronics.

[23]  Zhang Le.  Study on New Speed Control System for Doubly Salient Permanent Magnet Motor , 2007 .

[24]  Li Quan,et al.  Electromagnetic performance analysis and fault-tolerant control of new doubly salient flux memory motor drive , 2010, 2010 International Conference on Electrical Machines and Systems.

[25]  Huizhen Wang,et al.  A Doubly Salient Starter/Generator With Two-Section Twisted-Rotor Structure for Potential Future Aerospace Application , 2012, IEEE Transactions on Industrial Electronics.