🎉We can now proudly present the winners of the TAPAS Community Challenge 2018! 🎉
Congratulations to Team "Wireless Charging" (idea 56). We are really excited for all finalists and a really big thank you to all participants for your interest in this challenge!

We got over 200 submissions! 65 ideas got one or more TAPAS boards, 10 submissions were presentation-ready.
And now we have 5 finalists! YEAH 😃 The finalist's idea numbers were 40, 56, 68, 212 and 213.
What's next?
We are now preparing the next steps for you, the community. Please stay tuned!
We are working on a forum and a separate webpage. If you have any question please don't hesitate to contact us via email!

Servo BLDC Motor Drive System with Fast Dynamics and High Precision

1. What is the goal for your project?

Nowadays electric motors are no more limitedly applied in traditional traction systems, but also in servo systems, such as robotics, automobiles, and CNC lathes, which require higher precision of positioning, fast speed regulation, less overshoot and steady state ripples as well as customer-friendly adjustment of control parameters.

Conventional close loop control methods of BLDC and AC motor drives are close loop V/f, Vector Control and Direct Torque Control. As the development of micro controllers and semiconductor industries, Model Predictive Control (MPC), as an emerging control method for power electronics, becomes a promising option for servo controls and trend for future applications. To further improve the torque dynamics, a disturbance observer (DO) designed for drive mechanical system will also be applied. BLDC motor has comparatively high power density and efficiency, and is usually applied in control systems with high dynamics requirement and restricted space and weight, which is the case for most servo systems. Therefore, it will be chosen as the test motor in this project. The system’s schematic for speed regulation is shown in figure.1.

Based on the advantages of the extremely high switching frequencies of TAPAS, both classes of MPCs: FCS-MPC (or: discrete MPC) and continuous MPC with DO will be implemented on a low power BLDC motor to find out various operation points’ performance, aspects and extent of improvements, maybe also (theoretically some but hopefully no) deteriorations under control within different higher switching frequency ranges.

2. How does the technical set-up look like?

The test bench is designed in two steps:

Firstly, a TAPAS-BLDC-Dynamometer system will be set up to test the BLDC motor’s performances under speed and position control modes. Dynamometer is initially applied for precise step loadings. (Figure.2)

If the drive in the first set-up isreliable and works well, then secondly, a 2TAPAS-2BLDC drag system willbe set up, in which one pair is the load system under torque control mode and theother pair is the speed control system already tested in the first test set-up.Different from the previous set-up, this is to test the BLDC motor’sperformances under torque control mode. (Figure.3)

DC power source(s) and oscilloscope will be used.

3. Are you working in a team? List the names of your team members.

We are a team of three: Sabrina Xuezhu Mei (F), Haotian Xie (M) and Dr.-Ing. Fengxiang Wang (M).

4. How many TAPAS boards will you need for your project?

Two boards are needed. As explained in Part 2, one is for drive motor and the other is for load motor. When only the first TAPAS is under test in the first set-up, the second TAPAS will be temporarily shared with our trained master students in lab for study purpose.

  • Xuezhu Mei
  • Apr 15 2018
  • Apr 17, 2018

    Admin Response

    This idea will get two TAPAS dev kits.

  • Admin
    Nora Schille (TAPAS team) commented
    April 16, 2018 08:52

    thanks for your submission!
    We will review your idea shortly :-)

    Nora @TAPAS team

  • Haotian Xie commented
    April 16, 2018 09:05

    Thank you very much.

    Best Regards


  • Admin
    Nora Schille (TAPAS team) commented
    April 17, 2018 11:41

    Hi Haotian, 
    we will send you two boards. One of my colleagues will send you more information shortly.

    Nora @ TAPAS Team

  • Xuezhu Mei commented
    April 17, 2018 15:41

    Dear Nora,

    thanks : ) Please contact Haotian for sending the boards.

    Best regards,

    Sabrina Xuezhu

  • Admin
    Nora Schille (TAPAS team) commented
    April 24, 2018 09:53

    Hey Sabrina,

    my colleague contacted you, but as far as I see the redemption process worked well ;-)

    Nora @ TAPAS Team

  • Haotian Xie commented
    April 24, 2018 19:30

    Dear Nora

    Thank you very much for sending us the boards.
    Best Regards.


    Haotian Xie
    Technische Universität München
    Lehrstuhl für Elektrische Antriebssysteme und Leistungselektronik
    Arcisstrasse 21, 80333 München
    Tel: +86 15950545365
    E-mail: haotian.xie@tum.de

    Von: Siemens AG [mailto:e41302bf71c9a55384666788@mailer.aha.io]
    Gesendet: Dienstag, 24. April 2018 11:55
    An: Xie, Haotian
    Betreff: Nora Schille (TAPAS team) responded to idea TAPAS-I-53 Servo BLDC Motor Drive System with Fast Dynamics and High Precision

  • Admin
    Nora Schille (TAPAS team) commented
    June 04, 2018 13:34

    Hi Mei & team,

    how is it going? Do you need any help regarding the realization of your project?
    Here is just a friendly reminder that submission deadline for your presentation is on 24th of June. :-) We are really excited to see your progress! 
    Please post the progress within your idea board submission.

    PS: We want to do a community call with you! Please use our doodle to find a date which fits best for you. :-)

    Nora @ TAPAS Team

  • Xuezhu Mei commented
    June 06, 2018 21:32

    Hi dear Nora,

    thanks a lot for the message. We are still working on it :-)

    Best regards, 


  • Jacqueline Hofmann commented
    June 20, 2018 12:20

    Hey Mei & team,

    Please keep in mind that the submission deadline for your presentation is on 24th of June! We are already looking forward to seeing how you brought the TAPAS board to life! :-) Remember that you still have time to work on the implementation of your idea after the submission!

    Please upload your presentation and everything you want to share with us in your idea board entry.

    Good luck :-)

    Jacqueline @ TAPAS Team

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