Hybrid multi-level current transformation topology based on H full-bridge subunit and control method of hybrid multi-level current transformation topology

Hybrid multi-level current transformation topology based on H full-bridge subunit and control method of hybrid multi-level current transformation topology

  • CN 102,522,913 A
  • Filed: 12/04/2011
  • Published: 06/27/2012
  • Est. Priority Date: 12/04/2011
  • Status: Active Application
First Claim
Patent Images

1. the mixed multi-level unsteady flow based on H full-bridge subelement is topological, and it is characterized in that:

  • described many level unsteady flow topology comprises;

    dc bus, single-phase convertor circuit structure and LC low pass filter;

    Described single-phase convertor circuit structure comprises H bridge cascade module, connects inductance and controls the switching tube serial module structure entirely;

    One end of described H bridge cascade module is connected with the positive direct-current bus;

    One end of described full control switching tube serial module structure is connected with negative dc bus;

    The other end of described H bridge cascade module be connected inductance and connect, the other end that connects inductance is connected with the other end of described full control switching tube serial module structure;

    Described full control switching tube serial module structure is formed H bridge circuit structure by four identical brachium pontis of structure, and first brachium pontis of H bridge circuit structure is connected with described LC low pass filter as lead-out terminal with the tie point of the 4th brachium pontis with the tie point of the 3rd brachium pontis and second brachium pontis.

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