Line voltage regulator

Electrical transmission or interconnection systems – Plural supply circuits or sources – Plural converters

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Details

307 86, 363 35, 323210, 323211, G05F 168, H02J 318

Patent

active

049509160

ABSTRACT:
The present invention pertains to a line voltage regulator for a cable which is electrically connected to at least one load. The line voltage regulator includes a device for producing a cable voltage drop signal that corresponds to a voltage drop across the cable which separates the line voltage regulator and the load. The line voltage regulator also includes a sensor circuit for determining distortion voltage across the cable which separates the power supply and the line voltage regulator and the fundamental frequency signal required for regulation. The sensor circuit produces a drive signal that corresponds to the distortion voltage and the fundamental frequency signal required for regulation. Additionally, there is a device for providing voltage to the cable such that the voltage is regulated and distortion voltage across the cable is essentially eliminated as applied to the load. The device for providing voltage is electrically connected to the sensor circuit and controlled by the drive signal therefrom. The cable voltage drop signal producing device provides the cable voltage drop signal to the sensor circuit. The sensor circuit adds a cable voltage drop signal to the distortion voltage and the fundamental voltage that the sensor circuit has identified and produces the drive signal that is used to control the device for providing voltage to the cable. The voltage providing device provides voltage to the cable such that the voltage in the cable is regulated and distortion voltage in the cable is essentially eliminated as applied to the load.

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