Systems and methods for calculating power transmission line capacity

摘要

The present disclosure provides a methodology that incorporates real-time measurement of conductor temperatures and ground clearances using a transmission line monitor, coupled with information technology and data analytics, to allow utility operators to manage their transmission systems using a dynamic line rating process. Dynamic line ratings may incorporate real-time or near-real-time data of transmission line conditions in lieu of conservative assumptions, in order to more accurately assess actual transmission line performance such that more of the power conveying capacity of the existing transmission infrastructure can be accessed with continued compliance with safety requirements applicable to the transmission line system.

主权项

1. An apparatus for determining a current rating for an electrical transmission line, comprising:
at least one ground clearance monitor located on a power transmission line; at least one line temperature monitor located on the power transmission line; a central server computer system comprising:
a receiver configured to receive actual line clearance measurements and actual line temperature measurements from the monitors located on the power transmission line; anda processor coupled with the receiver and configured to calculate a dynamic ampacity for the transmission line based at least in part on the line clearance, line temperature, and conductor characteristics of one or more conductors of the transmission line; and a user system capable of displaying the dynamic ampacity for the transmission line resulting in an adjusted load-temperature relationship for the power transmission line.