2013•Unpublished venueRequires access

A New Control Method for Optimal Switching of Low Voltage Reactive Power Compensation

Ju Chen

Abstract

Considering that the traditional control algorithm of low voltage reactive power compensation has unsatisfied response speed and effect of compensation,a new control method is proposed. After the first switching of capacitor based on power factor control mode,the proposed method can realize the secondary optimal switching of capacitor by using three variables: voltage,reactive power and power factor,and fuzzy control algorithm. Test results show that the controller which uses the proposed method has a simple control algorithm and fast response speed,which solves the contradiction between voltage quality control and power factor control and the oscillation caused by repeat switching of capacitor. The power factor of 400 V distribution network can get its best value.

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Available abstract

Key concepts: Power factor, AC power, Control theory (sociology), Power control, Capacitor, Compensation (psychology), Voltage optimisation, Controller (irrigation)