Title

A New Methodology For Determining Transmission Capacity Margin In Electric-Power Systems

Keywords

Margin; Operating Studies; Simulation; Model Accuracy; Engineering, Electrical & Electronic

Abstract

This paper addresses the need in the electric power industry to more accurately determine transmission capacity margin between normal conditions and the system limitations. This need results from margin being reduced by the competetive business climate that electric power utilities find themselves in today. The traditional method of injecting margin into system operation, by building margin into the simulation models used to determine operating limitations, is no longer appropriate. Instead, today's highly stressed transmission systems require that simulation models be very accurate, and that margin be quantified and measured. The interpreted margin method is a way to control reduction of margin using a safe, engineering-based methodology, because it provides incentive for improving model accuracy while at the same time requiring margin to be quantified. A final conclusion is that greater efforts must be made to increase simulation accuracy; more manpower in the analysis procedures, where necessary, would further this goal as well as make good financial sense.

Publication Title

Ieee Transactions on Power Systems

Volume

6

Issue/Number

3

Publication Date

1-1-1991

Document Type

Article

Language

English

First Page

944

Last Page

951

WOS Identifier

WOS:A1991HA44600007

ISSN

0885-8950

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