🎉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!


Inverter design that predicts the IV curve of a solar panel to track the MPP at dynamic weather conditions for improved efficiency

This project aims to be a proof of concept to increase the efficiency of a PV system. Inverters in the market have an assumed efficiency of over 90% but these figures are all based on lab testing at standard test conditions (STC), where as in most PV installations that is never the case there are different elements affecting performance, I have tested the main areas where inverters MPPT fails to track the maximum power point and proved that further improvement can be made. Please find attached a snippet with more details about the tests and results.

The highest losses monitored were when the solar panels experience partial shading which deforms the IV curve based on how many strings were bypassed, we are currently writing a bid to a funding body to start a project to develop a prototype inverter were the processor can read the feedback signals from sensors mounted in different arrangements to overcome the tracking of maximum power point and based on the shading pattern to calculate the IV and PV curves and pinpoint the maximum power point instantly instead of spending an hour or two in some cases to track it.

The project will benefit: System owners, Inverter manufacturers, PV manufacturers, by increasing the efficiency and energy harvested from PV.

Partners: Silent Sensors, Wurth Electronics, Loughborough University

For the prototype one TAPAS board will be needed, to replace the current FPGA we are looking into or work along side it.

  • Waleed Elmughrabi
  • May 30 2018
  • May 30, 2018

    Admin Response

    this idea gets one TAPAS dev kit

  • Admin
    Nora Schille (TAPAS team) commented
    May 30, 2018 12:58

    Hi Waleed,

    great idea! The one point which is interesting to us: How do you implement the sensoring?

    Best,
    Nora @ TAPAS team

  • Waleed Elmughrabi commented
    May 30, 2018 13:10

    Hi Nora there are two approaches that we are testing: one is to use a small camera in front of the solar panel and digital image processing to capture the IV curve then send either a wired or a wireless signal to feedback into the MPPT algorithm or to use current sensors for each string of cells in the solar panel to also feedback into the inverter algorithm.

  • Waleed Elmughrabi commented
    May 30, 2018 13:14

    A clarification: a camera to capture the shading pattern and then calculate the IV curve using either the one diode or two diode models

  • Waleed Elmughrabi commented
    May 30, 2018 13:30

    Hi Nora there are two approaches that we are testing: one is to use a small camera in front of the solar panel and digital image processing to capture the shading pattern and then calculate the IV curve using either the one diode or two diode models then send either a wired or a wireless signal to feedback into the MPPT algorithm or to use current sensors for each string of cells in the solar panel to also feedback into the inverter algorithm.

  • Admin
    Nora Schille (TAPAS team) commented
    May 30, 2018 13:36

    Hey Waleed,

    thanks for your answer.
    We want to provide you a TAPAS board.
    One of my colleagues will message you shortly.

    Best,
    Nora @ TAPAS team

  • Admin
    Nora Schille (TAPAS team) commented
    June 04, 2018 14:48

    and something else...

    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

  • Waleed Elmughrabi commented
    June 06, 2018 00:08

    Thanks for showing interest, Yes sure will post the updates. I have just responded to the doodle, looking forward for a chat.

    Kind Regards
    Waleed

  • Admin
    Nora Schille (TAPAS team) commented
    June 06, 2018 09:18

    Perfect :-) We will announce the date shortly.

  • Jacqueline Hofmann commented
    June 20, 2018 13:01

    Hey Waleed,

    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

  • Jacqueline Hofmann commented
    June 21, 2018 12:24

    Hey Waleed,

    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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