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Fee calculation system for electrical energy consumption of motor drive and method for the same

  • US 20060294032A1
  • Filed: 06/23/2005
  • Published: 12/28/2006
  • Est. Priority Date: 06/23/2005
  • Status: Abandoned Application
First Claim
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1. A method for calculating fee of electrical energy consumption in a motor drive, comprising the steps of:

  • a) calculating an instantaneous load power Pout according to an output voltage, an output current and a power factor of the motor drive;

    b) calculating a total instantaneous consumption power P by adding the instantaneous load power Pout with an internal consumption power Pi of the motor drive;

    c) multiplying the total instantaneous consumption power P with an operation time of the motor drive and a fee schedule Ec to obtain the fee M of the electrical energy consumption.

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