Shen Jianxin

Professor, School of Electrical Engineering

 

Phone: +86 571 8795 3094
Fax: +86 571 8795 1625
Email: J_X_Shen@zju.edu.cn
Office: The 2nd Teaching Building

Zhejiang University, Yuquan Campus
38 Zheda Road
Hangzhou, China 310027

 

Other Appointments

Head, Department of Electrical Engineering
Director, Institute of Aerospace and Special Electric Machines
Vice Director, National Engineering and Research Centre of Precision and Special Electric Machines

 

Professional Activities

IEEE Senior Member
IET Member
Member of Editorial Board of IJRER

 

Education

BEng - Xi’an Jiaotong University, China, 1991
MSc - Xi’an Jiaotong University, China, 1994
PhD - Zhejiang University, China, 1997
PhD - Sheffield University, UK, 2003

Working Experience

1997-1999: Post-Doctoral Fellow, Nanyang Technological University, Singapore
2002-2004: Research Engineer, Project Leader, IMRA-UKRC, UK
2004-present: Professor, Zhejiang University, China
 

Awards and Honors

IEEE Industry Applications Society 2003 Prize Paper Award (Third Prize).
EVER 2010 Monaco Best Paper Award.
EVER 2011 Monaco Best Paper Award.

 

Research Interests

Electric Machine Topologies
Power Electronics Drives
Control of Motor Drives

 

Current Projects

  1. High-Speed Electric Machines and Low-Speed Electric Machines
  2. Novel Permanent Magnet Machines
  3. Electromagnetic Transmission of Mechanical Power
  4. Energy Harvesting
  5. Renewable Energy
  6. EV & HEV

Publication List

More than 100 scientific papers have been published. Detailed list of the publications can be found at http://mypage.zju.edu.cn/en/jxs
(Papers Published on International Journals or Conferences):

 

  1. J. X. Shen, and Y. B Liu, Microcomputer Based Position-Sensorless Drive for Brushless DC Motor, Proceedings of 1994 International Power Electronics and Motion Control Conference (IPEMC'1994), June 1994, Beijing, China, pp.402-407
  2. Y. X. Chen, J. X. Shen, and Z. M. Fang, Topology and Preliminary Design of Slotless Brushless DC Motor, Record of 1997 IEEE International Electric Machines and Drives Conference (IEMDC'1997), May 1997, Milwaukee, USA, pp.WB2/7.1-WB2/7.3
  3. G. D. He, J. P. Jiang, J. X. Shen, and J. Lei, A Fuzzy Variable Structure Control Scheme for AC Servo Drive System, Record of 1997 IEEE International Electric Machines and Drives Conference (IEMDC'1997), May 1997, Milwaukee, USA, pp.WC3/3.1-WC3/3.3
  4. J. X. Shen, K. J. Tseng, and W. K. Chan, Research on a Compact PMSM with Magnetic Bearing for Use in Artificial Heart, Electrical & Electronic Engineering Research, Nanyang Technological University, Singapore, ISSN 0218-2602, January 1999, p.77-78
  5. J. X. Shen, and K. J. Tseng, Analyses and Compensation of Rotor Position Detection Error in a Sensorless PM Brushless DC Motor, Record of 1999 IEEE International Electric Machines and Drives Conference (IEMDC'1999), May 1999, Seattle, USA, pp.81-83
  6. J. Hu, B. R. Duggal, D. M. Vilathgamuwa, and J. X. Shen, A DSP Based Field Oriented Induction Motor Control System with Fuzzy Logic Scheme, Record of 1999 IEEE International Electric Machines and Drives Conference (IEMDC'1999), May 1999, Seattle, USA, pp.637-639

J. X. Shen, K. J. Tseng, and W. K. Chan, A New Compact PM Motor with Magnetically Levitated Rotor for Application as Implantable Artificial Heart, Proceedings of 1999 International Power Engineering Conference (IPEC'1999), May 1999, Singapore, pp.612-617
 

  1. J. X. Shen, and K. J. Tseng, Design Considerations for Radial-Flux Permanent Magnet Brushless DC Motor with Short Axial Length, Proceedings of 1999 Chinese International Conference on Electric Machines (CICEM''999), August 1999, Xi'an, China, pp.207-210
  2. J. X. Shen, D.M. Vilathgamuwa, K. J. Tseng, and W. K. Chan, A Novel Compact PMSM with Magnetic Bearing for Artificial Heart Application, Proceedings of 1999 IEEE Industry Applications Society Annual Meeting (IEEE-IAS'1999), October 1999, Phoenix, USA, pp.1201-1207

J. X. Shen, K. J. Tseng, D. M. Vilathgamuwa, and W. K. Chan, A Novel Compact PMSM with Magnetic Bearing for Artificial Heart Application, IEEE Trans. Industry Applications, Vol. 36, No. 4, July 2000, pp.1061-1068
 

  1. J. X. Shen, Z. Q. Zhu, and D. Howe, A Hybrid PI-Fuzzy Logic Control of Permanent Magnet Brushless AC Drive, Proceedings of 2000 Chinese Automation and Computer Science Conference in the UK (CACSCUK'2000), September 2000, Loughborough, UK, pp.71-77

J. X. Shen, Z. Q. Zhu, and D. Howe, Improved Speed Estimation in Sensorless PM Brushless AC Drives, Record of 2001 IEEE International Electric Machines and Drives Conference (IEMDC'2001), June 2001, Cambridge, USA, pp.960-966
 

  1. J. X. Shen, Z. Q. Zhu, and D. Howe, Hybrid PI and Fuzzy Logic Speed Control of PM Brushless AC Drives, Proceedings of 2001 European Conference on Power Electronics and Applications (EPE'2001), August 2001, Graz, Austria, CD ROM file: PP00317.pdf
  2. J. X. Shen, Z. Q. Zhu, and D. Howe, Practical Issues in Implementing Fuzzy Logic Speed Control of PM Brushless AC Drives, Proceedings of 2001 Chinese Automation and Computer Science Conference in the UK (CACSCUK'2001), September 2001, Nottingham, UK, pp.185-190
  3. J. X. Shen, Z. Q. Zhu, D. Howe, and J. M. Buckley, Adaptive Fuzzy Logic Control of PM Brushless AC Drives, Proceedings of 2002 IEE International Conference on Power Electronics, Machines and Drives (PEMD'2002), April 2002, Bath, UK, pp. 68-73
  4. Z. Q. Zhu, J. X. Shen, and D. Howe, Comparative Study of Alternative Fuzzy Logic Control Strategies of Permanent Magnet Brushless AC Drive, Proceedings of the 2002 IEEE International Conference on Control Applications (CCA/CACSD'2002), September 2002, Glasgow, UK, pp.42-47
  5. J. X. Shen, Z. Q. Zhu, and D. Howe, Improved Speed Estimation in Sensorless PM Brushless AC Drives, IEEE Trans. Industry Applications, Vol. 38, No. 4, July 2002, pp.1072-1080, Third Prize

J. Liu, S. A. Billings, Z. Q. Zhu, and J. X. Shen, Enhanced Frequency Analysis Using Wavelets, International Journal of Control, Vol. 75, No. 15, October 2002, pp. 1145-1158
 

  1. J. X. Shen, and K. J. Tseng, Analyses and Compensation of Rotor Position Detection Error in Sensorless PM Brushless DC Motor Drives, IEEE Trans. Energy Conversion, Vol. 18, No. 1, March 2003, pp. 87-93

J. X. Shen, Z. Q. Zhu, and D. Howe, Sensorless Flux-Weakening Control of Permanent Magnet Brushless Machines Using Third-Harmonic Back-EMF, Record of 2003 IEEE International Electric Machines and Drives Conference (IEMDC'2003), June 2003, Madison Wisconsin, USA, pp. 1229-1235
 

  1. J. X. Shen, and S. Iwasaki, Improvement of ASIC-Based Sensorless Control for Ultrahigh-Speed Brushless DC Motor Drive, Record of 2003 IEEE International Electric Machines and Drives Conference (IEMDC'2003), June 2003, Madison Wisconsin, USA, pp. 1049-1054

J. X. Shen, Z. Q. Zhu, and D. Howe, PM Brushless Drives with Low-Cost and Low-Resolution Position Sensors, Proceedings of 2004 International Power Electronics and Motion Control Conference (IPEMC'2004), August 2004, Xi’an, China, pp. 1033-1038
 

  1. J. X. Shen, Z. Q. Zhu, and D. Howe, Sensorless Flux-Weakening Control of Permanent Magnet Brushless Machines Using Third-Harmonic Back-EMF, IEEE Trans. Industry Applications，Vol. 40, No. 6, November 2004, pp. 1629-1636
  2. J. X. Shen, Z. Q. Zhu, D. Howe, and J. M. Buckley, Fuzzy Logic Speed Control and Current Harmonic Reduction in Permanent Magnet Brushless AC Drives, IEE Proceedings - Electric Power Applications, Vol. 152, No. 3, May 2005, pp. 437-446
  3. Y. Zhou, J. X. Shen, Y. Y. Ye, and T. X. Cai, Control of a LIM-Driven Elevator Door, Proceedings of 2005 International Symposium on Linear Drives for Industry Applications (LDIA’2005), September 2005, Kobe Awaji, Japan, pp. 481-483
  4. J. X. Shen, and S. Iwasaki, Sensorless Control of Ultrahigh-Speed PM Brushless Motor Using PLL and Third Harmonic Back EMF, IEEE Trans. Industrial Electronics, Vol. 53, No. 2, April 2006, pp. 421-428

Z. Q. Zhu, J. X. Shen, and D. Howe, Flux-Weakening Characteristics of Trapezoidal Back-EMF Machines in Brushless DC and AC Modes, Proceedings of 2006 International Power Electronics and Motion Control Conference (IPEMC'2006), August 2006, Shanghai, China, pp. 908-912
 

  1. J. X. Shen, Z. Q. Zhu, and D. Howe, Practical Issues in Sensorless Control of PM Brushless Machines Using Third-Harmonic Back-EMF, Proceedings of 2006 International Power Electronics and Motion Control Conference (IPEMC'2006), August 2006, Shanghai, China, pp. 928-932
  2. F. Z. Zhou, J. X. Shen, and W. Z. Fei, Influence on Rotor Eddy-Current Loss in High-Speed PM BLDC Motors, Proceedings of 2006 International Universities Power Engineering Conference (UPEC2006), ISBN: 978-1-86135-342-9, September 2006, Newcastle upon Tyne, UK, CD ROM file E-27-ZFZ_UPEC2006.pdf, Abstract Proceedings, pp. 261-262
  3. W. Z. Fei, and J. X. Shen, Novel Permanent Magnet Switching Flux Motors, Proceedings of 2006 International Universities Power Engineering Conference (UPEC2006), ISBN: 978-1-86135-342-9, September 2006, Newcastle upon Tyne, UK, CD ROM file E-25-FWZ_UPEC_1210610.pdf, Abstract Proceedings, pp. 259-260
  4. W. Z. Fei, and J. X. Shen, Comparative Study and Optimal Design of PM Switching Flux Motors, Proceedings of 2006 International Universities Power Engineering Conference (UPEC2006), ISBN: 978-1-86135-342-9, September 2006, Newcastle upon Tyne, UK, CD ROM file 9_J.X.Shen@ieee.org_288_FWZ_UPEC_6564.pdf, Abstract Proceedings, pp. 243-244
  5. F. Z. Zhou, J. X. Shen, W. Z. Fei, and R. G. Lin, Study of Retaining Sleeve and Conductive Shield and Their Influence on Rotor Loss in High-Speed PM BLDC Motors, Proceedings of 2006 International Magnetics Conference (InterMag2006), May 2006, San Diego, USA, CD ROM file ET-03.pdf, Abstract Proceedings, p. 497
  6. F. Z. Zhou, J. X. Shen, W. Z. Fei, and R. G. Lin, Study of Retaining Sleeve and Conductive Shield and Their Influence on Rotor Loss in High-Speed PM BLDC Motors, IEEE Trans. Magnetics, Vol. 42, No. 10, October 2006, pp. 3398-3400
  7. K. Wang, J. X. Shen, F. Z. Zhou, R. H. Qiu, and R. G. Lin, Optimal Design of Magnet Pole Arc Considering Utility of Third-Harmonic Back-EMF in High-Speed Sensorless Brushless DC Motors, Proceedings of 2007 International Conference on Electrical Machines and Systems (ICEMS2007), October 2007, Seoul, Korea, CD ROM file PM1-05.pdf, pp. 680-684
  8. K. Wang, J. X. Shen, and S. Z. Dong, Sensorless Control and Initial Position Estimation of Permanent Magnet Flux-Switching Motor, Proceedings of 2007 International Conference on Electrical Machines and Systems (ICEMS2007), October 2007, Seoul, Korea, CD ROM file MD3-03.pdf, pp. 487-491
  9. K. Wang, J. X. Shen, and F. Z. Zhou, Design Aspects of a High-Speed Sensorless Brushless DC Motor Using Third Harmonic Back-EMF, Abstract Proceedings of 52nd Annual Conference on Magnetism and Magnetic Materials (MMM2007), November 2007, Tampa, USA, p. 422

K. Wang, J. X. Shen, and F. Z. Zhou, Design Aspects of a High-Speed Sensorless Brushless DC Motor Using Third Harmonic Back-EMF for Sensorless Control, Journal of Applied Physics, Vol. 103, No. 7, April 2008, p. 07F110
 

  1. L. L. Wang, J. X. Shen, Y. Wang, and K. Wang, A Novel Magnetic-Geared Outer-Rotor Permanent-Magnet Brushless Motor, Proceedings of 2008 IET International Conference on Power Electronics, Machines and Drives (PEMD2008), ISBN:9780863419003, April 2008, York, UK, pp. 33-36
  2. Z. X. Fang, Y. Wang, J. X. Shen, and Z. W. Huang, Design and Analysis of a Novel Flux-Switching Permanent-Magnet Integrated-Starter-Generator, Proceedings of 2008 IET International Conference on Power Electronics, Machines and Drives (PEMD2008), ISBN:9780863419003, April 2008, York, UK, pp. 106-110
  3. C. F. Wang, J. X. Shen, L. L. Wang, and K. Wang, A Novel Permanent-Magnet Flux-Switching Linear Motor, Proceedings of 2008 IET International Conference on Power Electronics, Machines and Drives (PEMD2008), ISBN:9780863419003, April 2008, York, UK, pp. 116-119
  4. Y. Wang, Z. W. Huang, J. X. Shen, and C. F. Wang, Comparative Study of 6/5- and 12/10-Pole Permanent Magnet Flux-Switching Motors Considering Flux-Weakening Capability, Digest Proceedings of 2008 International Conference on Electrical Machines and Systems (ICEMS2008), ISBN:978-7-5062-9221-4, October 2008, Wuhan, China, CD ROM file SMP-55.pdf, p. 814
  5. G. Yang, J. Ma, J. X. Shen, K. H. Ji, and Y. Wang, Optimal Design and Experimental Verification of a Line-Start Permanent Magnet Synchronous Motor, Digest Proceedings of 2008 International Conference on Electrical Machines and Systems (ICEMS2008), ISBN:978-7-5062-9221-4, October 2008, Wuhan, China, CD ROM file SMP-48.pdf, p. 806
  6. Y. Wang, J. X. Shen, W. Z. Fei, and Z. W. Huang, Design Techniques for Reducing Cogging Torque in PM Flux-Switching Machines, Proceedings of 2008 Doctoral Forum of China, ISBN:978-7-5643-0109-5, November 2008, Chengdu, China, pp. 1607-1612
  7. Y. Wang, J. X. Shen, Z. X. Fang, and W. Z. Fei, Reduction of Cogging Torque in Permanent Magnet Flux-Switching Machines, Journal of Electromagnetic Analysis and Applications (JEMAA), ISSN(Print):1942-0730, ISSN(Online):1942-0749, Vol. 1, No. 1, March 2009, pp.11-14
  8. K. Wang, M. J. Jin, J. X. Shen, and R. H. Qiu, Comparative Study on Stator Structures in High-Speed Sensorless Brushless DC Motors, Abstract Proceedings of 53nd Annual Conference on Magnetism and Magnetic Materials (MMM2008), ISSN:1087-3848, November 2008, Austin, USA, p. 523
  9. Y. Wang, W. Z. Fei, J. X. Shen, and Z. X. Fang, An Outer-Rotor Permanent Magnet Flux-Switching Machine for Traction Application, Abstract Proceedings of 53nd Annual Conference on Magnetism and Magnetic Materials (MMM2008), ISSN:1087-3848, November 2008, Austin, USA, pp. 523-524
  10. C. F. Wang, and J. X. Shen, A 3D-Field Permanent Magnet Flux-Switching Machine, Abstract Proceedings of 2008 Asian Magnetics Conference (AMC2008), December 2008, Busan, Korea, p. 209
  11. L. L. Wang, J. X. Shen, G. Yang, and Y. Wang, Design of a High-Performance Linear Permanent Magnet Gear, Abstract Proceedings of 2008 Asian Magnetics Conference (AMC2008), December 2008, Busan, Korea, p. 210
  12. C. F. Wang, and J. X. Shen, A Modular Permanent Magnet Flux-Switching Linear Motor with Fault-Tolerant Capability, Abstract Proceedings of 2008 Asian Magnetics Conference (AMC2008), December 2008, Busan, Korea, p. 211
  13. C. F. Wang, and J. X. Shen, A New Method to Reduce Detent Force in Permanent Magnet Flux-Switching Linear Motors, Abstract Proceedings of 2008 Asian Magnetics Conference (AMC2008), December 2008, Busan, Korea, p. 212
  14. J. X. Shen, Y. Wang, C. F. Wang, W. Z. Fei, and P. C. K. Luk, Design and Analysis of A New Outer-Rotor Permanent-Magnet Flux-Switching Machine for Electric Vehicle Propulsion, Proceedings of 2009 Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER2009), March 2009, Monaco, CD-ROM file EVER09-paper-136.pdf
  15. W. Z. Fei, P. C. K. Luk, J. X. Shen, and Y. Wang, A Novel Outer-Rotor Permanent-Magnet Flux-Switching Machine for Urban Electric Vehicle Propulsion, Proceedings of 2009 International Conference on Power Electronics Systems and Applications (PESA2009), CD ROM file No.47

W. Z. Fei, G. Yang, J. X. Shen, and P. C. K. Luk, High Performance Line-Start Permanent Magnet Synchronous Motor Amended from Small Industrial Three-Phase Induction Motor, Proceedings of 2009 International Magnetics Conference (InterMag2009), May 2009, Sacramento, USA, CD ROM file FW-06.pdf, Abstract Proceedings, p. 157
 

  1. L. L. Wang, J. X. Shen, C. F. Wang, and H. Hao, Development of a magnetic-geared permanent-magnet brushless motor, Proceedings of 2009 International Magnetics Conference (InterMag2009), May 2009, Sacramento, USA, CD ROM file FH-02.pdf, Abstract Proceedings, p. 73

C. F. Wang, J. X. Shen, Y. Wang, L. L. Wang, and M. J. Jin, A New Method for Reduction of Detent Force in Permanent Magnet Flux-Switching Linear Motors, IEEE Trans. Magnetics (extended from AMC2008 paper), Vol. 45, No. 6, June 2009, pp. 2843-2846
 

  1. M. J. Jin, C. F. Wang, J. X. Shen, and B. Xia, A Modular Permanent-Magnet Flux-Switching Linear Machine With Fault-Tolerant Capability, IEEE Trans. Magnetics (extended from AMC2008 paper), Vol. 45, No. 8, August 2009, pp.3179-3186.
  2. L. L. Wang, J. X. Shen, P. C. K. Luk, W. Z. Fei, C. F. Wang, and H. Hao, Development of a Magnetic-Geared Permanent-Magnet Brushless Motor, IEEE Trans. Magnetics (extended from InterMag2009 paper), Vol. 45, No. 10, October 2009, pp.4578-4581.
  3. W. Z. Fei, P. C. K. Luk, J. Ma, J. X. Shen, and G. Yang, A High-Performance Line-Start Permanent Magnet Synchronous Motor Amended From a Small Industrial Three-Phase Induction Motor, IEEE Trans. Magnetics (extended from InterMag2009 paper), Vol. 45, No. 10, October 2009, pp.4724-4727.
  4. J. M. Liu, J. X. Shen, M. J. Jin, W. Z. Fei, and H. Hao, A New Field Oriented Control Technique of EPS Motor with Low-Cost Current Sampling, Proceedings of 2010 Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER’10), March 2010, Monaco, CD-ROM file EVER10-paper-244.pdf
  5. H. Hao, M. J. Jin, J. X. Shen, and W. Z. Fei, Sensorless Operation of High-Speed PM BLDC Machine Using Full Hardware Rotor-Flux-Observer, Proceedings of 2010 Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER’10), March 2010, Monaco, CD-ROM file EVER10-paper-245.pdf, Best Paper Award
  6. C. F. Wang, P. C. K. Luk, J. X. Shen, W. Z. Fei, and M. J. Jin, Design Issues of an IPM BLAC Motor Used for Electric Power Steering, Proceedings of 2010 Conference and Exhibition on Ecological Vehicles and Renewable Energies (EVER’10), March 2010, Monaco, CD-ROM file EVER10-paper-268.pdf
  7. K. Wang, M. J. Jin, J. X. Shen, and H. Hao, Study on Rotor Structure with Different Magnet Assembly in High-Speed Sensorless Brushless DC Motors, IET Electric Power Applications, Vol. 4, No.4, April 2010, pp. 241-248
  8. Y. Wang, M. J. Jin, W. Z. Fei, and J.X. Shen, Cogging Torque Reduction in Permanent Magnet Flux-Switching Machines by Rotor Teeth Axial Pairing, IET Electric Power Applications, Vol. 4, No. 7, July 2010, pp. 500–506
  9. M. J. Jin, Y. Wang, J. X. Shen, P. C. K. Luk, W. Z. Fei, and C. F. Wang, Cogging Torque Suppression in a Permanent-Magnet Flux-Switching Integrated-Starter-Generator, IET Electric Power Applications, Vol. 4, No.9, September 2010, pp. 647-656
  10. Y. Wang, M. J. Jin, J. X. Shen, W. Z. Fei, and P. C. K. Luk, An Outer-Rotor Flux-Switching Permanent Magnet Machine forTraction Applications, Proceedings of 2010 IEEE Energy Conversion Congress and Exposition (ECCE’10), CD-ROM file 248_1065.pdf
  11. W. Fei, P. C. K. Luk, B. Xia, Y. Wang, and J. X. Shen, Permanent Magnet Flux Switching Integrated-Starter-Generator with Different Rotor Configurations for Cogging Torque and Torque Ripple Mitigations, Proceedings of 2010 IEEE Energy Conversion Congress and Exposition (ECCE’10), CD-ROM file 247_0975.pdf
  12. W. Z. Fei, J. X. Shen, C. F. Wang, and P. C. K. Luk, Design and Analysis of a New Outer-Rotor Permanent-Magnet Flux-Switching Machine for Electric Vehicle Propulsion, (extended from EVER2009 paper), to be published on COMPEL2011/1
  13. C. F. Wang, J. X. Shen, P. C. K. Luk, W. Z. Fei, and M. J. Jin, Design Issues of an IPM Motor for EPS, (extended from EVER2009 paper), to be published on COMPEL2012/1
  14. J. X. Shen, H. Hao, M. J. Jin, and W. Z. Fei, Sensorless High-Speed BLDC Machine Using Hardware-RFO, (extended from EVER2009 paper), to be published on COMPEL2012/1


 

Conference List

See http://mypage.zju.edu.cn/en/jxs

 

Patent List

(List of Patents Granted in China)
 

  1. Permanent magnet dc motors for electric vehicle applications, ZL 98 2 44058.8
  2. Permanent magnet dc motors, ZL 98 2 25156.4
  3. Permanent magnet brushless dc motors, ZL 99 1 13414.1
  4. A low-speed high-torque permanent magnet brushless dc motor with magnetic-field speed-reduction technique, ZL 200820121436.6
  5. A permanent magnet flux-switching machine with hybrid excitation, ZL 200820164188.3
  6. A modular fault-tolerant permanent magnet flux-switching linear machine, ZL 200820164189.8
  7. A hybrid-excitation flux-switching machine, ZL 200920120375.6
  8. A hybrid-excitation doubly-salient machine, ZL 200920120376.0
  9. A permanent magnet flux-switching machine with enhanced magnetic field, ZL 200920120374.1
  10. A flux-switching machine with hybrid-excitation, ZL 200920120377.5
  11. A permanent magnet flux-switching machine with enhanced magnetic field and high fault-tolerance, ZL 200920120373.7
  12. A rotor core of doubly-salient electric machines, ZL 200920121249.2
  13. Magnetic-field speed-reduction technique for low-speed high-torque permanent magnet brushless dc motors, ZL 200810063000.0
  14. Hybrid-excitation flux-switching permanent magnet electric machines, ZL 200810120973.3
  15. Modular fault-tolerant permanent magnet flux-switching linear electric machines, ZL 200810120974.8
  16. Flux-switching electric machines with hybrid excitation, ZL 200910098789.8