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About LM3S817 grid synchronization

Radhika Anabathula
Intellectual 390 points

Other Parts Discussed in Thread: LM3S817

Hi,

We are using ARM based LM3S817 microcontroller for Inverter. Can i do grid synchronization with this controller.

If any possibilities please provide some solutions and related documents as soon as possible.

  • 0
    TI__Prodigy 600 points

    Hi Radhika,

    We do not have any specific example applications for grid synchronization with the Tiva C series, but the LM3S817 includes 6 ADC inputs that could be used to monitor the frequencies and phases of your generator and grid voltages.  The input range for ADC pins on the LM3S817 is -0.3 to VDD +0.3V so you would need supporting components to sample higher voltages.  You could then use a GPIO to control a relay which closes the generator circuit breaker when the generator and grid circuits are in phase.  For more information please consult the ADC section in the datasheet.

    -Joel

  • 0 in reply to Joel East
    Intellectual 390 points

    Hi,

    Thank you for your information. But u mentioned  "GPIO has to be used to control a relay which closes the generator circuit breaker when the generator and grid circuits are in phase".  Could u explain in detail and provide sample code to do this mechanism. And is there any possibility to occure delay's while synchronizing generated output and grid output.