šŸŽ‰We can now proudly present the winners of the TAPAS Community Challenge 2018! šŸŽ‰
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 šŸ˜ƒ 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!


Smart Battery Management System for V2H applications

Because of the electrical mobility evolution, there are a lot of Li-ion battery packs worldwide that areĀ most of the time notĀ being used. They can however be used in powering 3 phase household appliances (Vehicle 2 Home) or return electricity to the grid (Vehicle 2 Grid) at peak hours. The reason why this system is not economically viable yet, is because the Li-ion battery pack's life cycle is significantly reduced when charged/discharged a lot with low power quality (high inrush current, ripple) electricity, provided by current inverters and DC/DC converters.Ā 

The TAPAS boards are perfect for our battery cycle life tests. We already gathered life-cycle data from other experiments so we could compare this to the performance of the TAPAS boards.

Our idea is to test the high power quality capabilities of the TAPAS inverter board whether the cycle life degradation in a Li-ionĀ cell and a Li-ion battery pack from a variable DC solar power supply. We would need two TAPAS boards (battery functions both as a load and a source):

  • TAPAS_1 as a DC/DC converter to stabilize solar output voltage and charge the battery (battery = load).
  • Use the battery to power 3 phase household appliances (V2H) through the inverter TAPAS_2 (battery = source).

But we would not stop there. We would also combine the TAPAS board with an external relay and Wifi board (z.B. ESP8266). This would allow flexible switching between charging and discharging based on:

  • SoC of the battery (COM)
  • household loads (COM)
  • a smartphone IOT app (wifi)
  • Google calender (Wifi)
  • ...

The team consists of myself andĀ 3 fellow electrical engineering graduate students. We already developed a flexible switching unit hardware board (with overvoltage protection circuit and a MOSFET per relay, controlled by an MCU)

We have a time schedule of 1 month for this idea.

If wanted, we can provide more information as we would love to start working with the TAPAS boards.

  • Arne Spiessens
  • May 29 2018
  • May 30, 2018

    Admin Response

    this idea will get two TAPAS dev kits

  • Admin
    Nora Schille (TAPAS team) commented
    30 May 12:23

    Hi Arne,

    cool idea!
    We want to provide you two TAPAS boards.
    According to the time schedule comment: Please take a look in the FAQ the deadline for submitting your presentation is the 24th of June. If you have further questions just message us :-)

    Regarding the boards one of my colleagues will message you shortly.
    Best,
    Nora @ TAPAS team


  • Admin
    Nora Schille (TAPAS team) commented
    04 Jun 14:44

    Hey Arne,Ā 

    I hope the boards arrive soon.
    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!Ā 
    Please post the progress within your idea board submission.
    PS: We want to do a community call with you! Please useĀ our doodle to find a date which fits best for you.Ā :-)

    Best,
    Nora @ TAPAS Team

  • Jacqueline Hofmann commented
    21 Jun 12:23

    Hi Arne,

    Don't forget that theĀ 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



You can read the official challenge FAQ here!