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In this webinar series, the impact of high-frequency switching on electric machines will be investigated in terms of high-frequency modelling, high-speed measurement, insulation partial discharge and reliability analysis together with proposed mitigation solutions and experimental validation. An introduction and update on the Future Electrical Machines Manufacturing Hub will also be provided.

 Jointly organised by the IET PEMD Technical Network and UK Centre for Power Electronics, you can register for all three webinars in this fantastic series here

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The fast switching speed, higher switching frequency of wide-bandgap (SiC, GaN)  power devices have brought in clear opportunities in achieving high-density, higher-efficiency, higher-frequency and highly-integrated motor drives. However, the high frequency switching can also negatively impact electric machines. For example, high dv/dt and high switching frequency can cause increased level of over-voltage at motor terminals and neutral, insulation and bearing degradation and electro-magnetic interference. Under the high dv/dt of SiC drives, motor terminals will see clear over-voltage with much shorter cables than that under Si IGBT motor drives and the voltage stress will mostly drop on the first several turns of the motor windings.


This webinar series is suitable for both industrial and academic audience and will provide insight of the opportunities, challenges and solutions of the adoption of wide-bandgap motor drives, in comparison to existing Si based drive systems.


We have a great line up of speakers across the 3 webinars:

Part 1: 14 April 2021 at 12.30pm (GMT+1)
Xibo Yuan, University of Bristol - Opportunities, challenges and potential solutions in fast-switching wide-bandgap (WBG) motor drives

Davide Barater, University of Modena and Reggio Emilia, Italy - WBG motor drives with very high voltage gradients: modelling and design solutions.  

Part 2: 21 April 2021 at 12.30pm (GMT+1)
Edward Shelton, Cambridge Design Partnership, University of Oxford - Measurement for high-frequency drives.

Ian Cotton, University of Manchester - Partial discharge: mechanism, influencing factors and measurement.

Part 3: 27 April 2021 at 12.30pm (GMT+1)
Jiabin Wang, University of Sheffield - Peak voltage stress in inverter-fed machines with fast switching devices

Geraint Jewell, University of Sheffield -  The Future Electrical Machine Manufacture Research Hub at Sheffield



Register here and join us!
  • in reply to Mouadh Ezzine

    Hi there Mouadh

    These events took place in April 2021 and were live webinars i.e. they were not recorded and available on demand. The link was to register for the live event which is no longer available as you've discovered.  Apologies for any disappointment caused! 

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