• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 38 subscribers
  • Views 191 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TIDA-010938: MPPT OUTPUT NOTSTABLE IN LAB 3

Khamir Ramani
Prodigy 50 points

Part Number: TIDA-010938

Tool/software:

I am currently working in tida-010938 and test lab -1 and lab - 2 and after that test lab - 3 but with not find out MPPT ref voltage setting like 100V max and which variable is Vref in MPPT. and currently started MPPT with 100V MaxVolt so its increase gradually and reach 400V+ so how to its stable only 100V so confusion in VmpptOUT variable and maxVolt variables.

  • 0
    TI__Intellectual 995 points

    Hi Khamir, 

    How the MPPT algorithm is implemented can be found in the stringINV_dcdc_mppt.h file. 

    The max and min voltages are set with the variables stringINV_DCDC_MPPT_DCDC_PNO_MAX_V and stringINV_DCDC_MPPT_DCDC_PNO_MIN_V in the strinINV_settings.h file. 

    The algorithm starts with seeing the stringINV_DCDC_VS_Boost1_sensed_FILTER or stringINV_DCDC_VS_Boost2_sensed_FILTER, subtracts 10V from this value and calculates the initial VmppOut. Then the algorithm applied is Perturb and Observe to calculate the maximum power from the input string by perturbing the volatge in calculated steps.. 

    Please let me know if this answers your question. 

    Thanks, 

    Veda