Power factor compensating device

Power factor compensating device

  • CN 101,577,430 A
  • Filed: 05/08/2008
  • Published: 11/11/2009
  • Est. Priority Date: 05/08/2008
  • Status: Active Application
First Claim
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1. , a kind of power factor compensation device is characterized in that, it comprises:

  • One power subsystem is with thinking that electronic component provides electric power;

    One voltage acquisition unit, it obtains real-time voltage signal and transfers phase line voltage sampling to from phase line;

    One current acquisition unit, it obtains real-time current signal and transfers the phase line current sampling signal to from described phase line;

    One analog/digital conversion unit, it is converted to described phase line voltage sampling and described phase line current sampling signal respectively and each self-corresponding frequency signal output;

    One processing unit, it is converted to corresponding real-time magnitude of voltage and current value respectively with described frequency signal, and calculates active power, reactive power and power factor value, when described power factor value is lower than predetermined threshold value, the output control signal;

    One compensating unit, it receives the control signal of described metering processing unit, realizes the power factor compensation to phase line.

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