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Control strategy for CRD-30DD12N-K

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gkim
gkim Contributor Level 3
edited September 2022 in General

Hello,

With respect to the reference design of CRD-30DD12N-K, I wonder which control strategy is employed for the three-phase interleaved LLC DC/DC converter.

Would you please provide some information or document for its control strategy?

Thank you for your consideration.

With regards,

GKIM

Comments

  • TBhatia
    TBhatia Wolfspeed Admin - Contributor Level 5
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    Hello, thank you for your message. A member of our technical team is looking into your questions and we will respond shortly.  

  • jshao
    jshao Wolfspeed Employee - Contributor Level 2
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    Hi GKim,

    The control of this 3 phase interleaved LLC DC/DC is typical LLC control, frequency modulation. Since it is 3 phase, there is 120 degree phase shift in each phase. Sorry we don't have more document for control, since we just follow the standard LLC control method. There are quite a lot papers about this.


    Thanks,

    Jianwen

  • gkim
    gkim Contributor Level 3
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    Hi jshao,

    Thank you for your review.

    Would you please share a few paper titles that you think are most relevant to the standard LLC control method you follow?

    Thank you for your consideration.

    With regards,

    GKIM

  • jshao
    jshao Wolfspeed Employee - Contributor Level 2
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    This one:

    (PDF) Unbalanced Three-Phase LLC Resonant Converters: Analysis and Trigonometric Current Balancing (researchgate.net)

    and this one:

    https://ieeexplore.ieee.org/document/7855520

    and many on single phase LLC design

  • gkim
    gkim Contributor Level 3
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    Hi jshao,

    Thank you for your review.

    I have found that the IEEE paper for the trigonometric current balancing is very helpful.

    Meanwhile would you please share a few paper titles that you think are most relevant to the output voltage control you follow for CRD-30DD12N-K ?

    Thank you for your consideration.

    With regards,

    GKIM

  • jshao
    jshao Wolfspeed Employee - Contributor Level 2
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    A SiC Based 30kW Three Phases Interleaved LLC Converter for EV Fast Charger.pdf

    Hi Gkim,

    Please see attached paper from our team. Please check some reference papers at the end of paper. Hope that will help.

    Thanks,

    Jianwen

This discussion has been closed.