A kind of more level active compensation devices of three-phase four-arm and control method

A kind of more level active compensation devices of three-phase four-arm and control method

  • CN 107,785,883 A
  • Filed: 11/19/2016
  • Published: 03/09/2018
  • Est. Priority Date: 08/31/2016
  • Status: Active Application
First Claim
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1. A kind of 1. more level active compensation devices of three-phase four-arm, it is characterised in that including:

  • Detection unit, control unit and benefitRepay unit;

    Wherein,The detection unit connects described control unit, for obtaining power distribution network residual voltage and being transferred to described control unit;

    Described control unit connects the compensating unit, for judging whether the power distribution network occurs list according to the residual voltagePhase earth fault simultaneously generates control signal;

    The compensating unit connects the power distribution network, in the presence of the control signal to the power distribution network injecting compensatingElectric current or zero-sequence current.

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