🎉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!


field-oriented control of a BLDC

What is the goal of your project?
-To build a torque control for a BLDC
How does the technical set-up look like?
-To test the BLDC I will use a DC Motor as load. The needed power will be produced by a bench power supply. Later I want to use li ion cells, which also need a balance control and a discharge control.
How do you want to implement your idea?
-first, I want to build a "real" sine wave generator (with PWM)
-second I want to build the field-oriented control
-at last I want to build the battery management system
How many TAPAS boards will you need for your project?
-two, one for the BLDC and one for the battery management system
The most BLDC are driven by a 6-step commutation. This produces a high torque ripple, which is bad for the ball bearings and noise of the motor. With the TAPAS I want to build a "real" sine wave ESC to reduce this problems. Furthermore I want to try to build a field-oriented control, to control the torque. The system will be used for an electric skateboard, which also needs a battery management system.
It might be possible to integrate this with the TAPAS.

  • Dennis Lange
  • Mar 21 2018
  • Apr 10, 2018

    Admin Response

    This idea will get two TAPAS dev kits.

  • Thomas Polster commented
    27 Mar 14:08

    Hey Dennis! Thanks for the idea!
    Can you give some sketches to visualize your overall setup :-)
    Also, can you give some insights into the battery management system. How you plan to implement it?
    Thank you!

  • Dennis Lange commented
    28 Mar 00:27

    Hey Thomas,

    here is a small sketch of my test setup. To controll the torque of the DC-motor I want to use a power Mosfet, an encoder and a shunt (to mesure the curent).

    The battery management system:

    I want to use li-ion-batterys, for a long and safty life-time they need to be balance charege.

    Another reason is that the moste batterys are made up of smaller cells (18650). They are connected in series to increase the voltage and then several packets in parallel to increase the current.

    For low speeds, the stator voltage should be lower. To lower the voltage individual cells could be bridged

     

    I hope I could answer your questions

  • Susanne Forster commented
    10 Apr 11:42

    Hey Dennis,


    Congrats, you will get two boards! Our team will contact you shortly.

    Regards,
    Susanne @ TAPAS team

  • Admin
    Nora Schille (TAPAS team) commented
    04 Jun 13:23

    Hi Dennis,

    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. :-)

    Best,
    Nora @ TAPAS Team

  • Jacqueline Hofmann commented
    20 Jun 12:18

    Hi Dennis,

    Don't forget that the submission deadline for your presentation is on 24th of June! We are already curious to see the results of your project :-) Keep in mind that you still have time to work on the implementation of your idea after the submission!

    Please post your project visualization and all related documents within your idea board entry :-)

    Best,

    Jacqueline @ TAPAS Team



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