Real-time contingency evaluation and ranking technique
Document Type
Article
Publication Date
1-1-1998
Abstract
The tendency towards maximising economic benefits has led power systems utilities to run close to the limits of stable operation. This has necessitated the study of the stressed situation of the power system network to accomplish efficient energy management without losing its reliability. On-line monitoring of power system stability has become a vital factor for electric utilities. An effective method for real-time monitoring of system status and thus voltage collapse prediction is described. The proposed technique investigates each line of the system through calculating an indicator that varies from 0 (no load condition) to 1 (maximum permissible loading condition). The basic concept of maximum power transfer through a line is utilised. The proposed contingency evaluation technique is applied on the IEEE 24 bus and IEEE 6 bus reliability test system and is found to be accurate in assessing the stressful status of the lines.
Keywords
Contingency evaluation and ranking, Power system monitoring, Stability indicators, Voltage stability, Electric utilities, System stability, Voltage control, Voltage collapse, Electric power systems
Divisions
fac_eng
Publication Title
Generation, Transmission and Distribution
Volume
145
Issue
5
Publisher
IEE Proceedings