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Voltage regulation at a remote location using measurements from a remote metering device

  • US 8,427,131 B2
  • Filed: 06/12/2009
  • Issued: 04/23/2013
  • Est. Priority Date: 06/12/2009
  • Status: Active Grant
First Claim
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1. A system for regulating a remote voltage of an electric power delivery system, comprising:

  • a voltage regulating device operatively coupled to a local portion of the electric power delivery system and configured to regulate the remote voltage by selecting among a plurality of taps on a transformer;

    a metering device in communication with a remote portion of the electric power delivery system to obtain remote power system data, including a transmit module for transmitting the remote power system data; and

    ,a voltage regulator control in communication with the voltage regulating device and the metering device, comprising;

    an input for receiving the remote power system data from the metering device; and

    ,a microcontroller in operational communication with the input for receiving the remote power system data comprising a voltage regulation module forcalculating an updated line impedance using a ratio of the remote power system data including a remote measured voltage to a remote estimated voltage;

    updating the set line impedance with the updated line impedance; and

    ,producing a tap change command for the voltage regulating device upon detecting an excursion of the remote power system data from an in-band area to an out-of-band area.

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