Evaluation of Permanent Magnet Motor energy saving technology for different types of railways

Research output: Chapter in Book/Report/Conference proceedingConference contribution

External organisations

  • University of Birmingham


the majority of drive chain losses in railway vehicles are attributable to motor inefficiency. An attractive solution to reduce these losses, and the associated energy consumption, is the implementation of Permanent Magnet Synchronous Motor (PMSM) technology. PMSMs are not only more efficient, but smaller and lighter than traditional induction machines, which can further benefit energy saving. However, introducing this technology and the associated control systems can be expensive and complex. Therefore, in this study, the authors evaluate the cost benefit of introducing PMSMs into different railway sub-modes to see where this solution is most appropriate, in terms of energy saved. The impact of regenerative braking on the cost is also considered, by simulating dynamic braking characteristics and the receptivity of different systems.


Original languageEnglish
Title of host publication2016 IEEE International Conference on Intelligent Rail Transportation, ICIRT 2016
Publication statusPublished - 13 Oct 2016
Event2016 IEEE International Conference on Intelligent Rail Transportation - Birmingham, United Kingdom
Duration: 23 Aug 201625 Aug 2016


Conference2016 IEEE International Conference on Intelligent Rail Transportation
Abbreviated titleICIRT 2016
CountryUnited Kingdom


  • Energy consumption, Induction motors, Inverters, Permanent magnet motors, Rail transportation, Traction motors, Vehicles