Adaptive synchronous capacitor switch controller

Details Adaptive synchronous capacitor switch controller Adaptive synchronous capacitor switch controller

1999-06-23

2000-09-19

Nguyen, Matthew

Electricity: power supply or regulation systems

For reactive power control

Using impedance

323210, G05F 170

Patent

active

061217581

ABSTRACT:
A method and apparatus are provided directed to a synchronous and adaptive capacitor switch controller for minimizing transients in the power factor correction of an electric power distribution system or transmission line. In particular, a capacitor, operatively associated with an electrical bus for distributing electric power, is provided for varying a capacitance on the electrical bus to perform power factor correction. A mechanical switch having a variable switch delay is provided for electrically connecting and disconnecting the capacitor to the electrical bus. A disturbance detector for measuring a voltage disturbance on the electrical bus upon connection and disconnection of the capacitor is further included. Finally, a switch controller is included to determine the variable switch delay of the mechanical switch as defined by the time delay between a switch trigger and said connecting and disconnecting of said capacitor to said electrical bus wherein the controller causes the connection of the capacitor to the electric bus by issuing the switch trigger at such a time so as to minimize the detected voltage disturbance.

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