Priority evaluation and ranking of transmission system projects computer models and results

• Published in: IEEE transactions on power systems Vol. 5; no. 3; pp. 1017 - 1023
• Main Authors: Morozowski, M., Melo, A.C.G., Pereira, M.V.F., Pinto, L.M.V.G., Ramos, D.S.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.08.1990; Institute of Electrical and Electronics Engineers
• Subjects: 240200 - Power System Networks, Transmission & Distribution- (1990-); Applied sciences; Computational modeling; COMPUTERIZED SIMULATION; COST BENEFIT ANALYSIS; Costs; Delay; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Fuel economy; Linear programming; Load flow; MANAGEMENT; Operation. Load control. Reliability; Performance evaluation; PLANNING; POWER DISTRIBUTION SYSTEMS; Power networks and lines; Power system modeling; Power system reliability; POWER TRANSMISSION; POWER TRANSMISSION AND DISTRIBUTION; SIMULATION; System performance; South America; Brazil; America; Operating reliability; Planning; Electrical network; Cost benefit analysis
• ISSN: 0885-8950; 1558-0679
• DOI: 10.1109/59.65933

The authors describe a methodology for identifying which subset of transmission investments in a given expansion plan can be postponed in order to meet a preestablished budget constraint with the least possible impact on system performance. The methodology is based on the ranking of scheduled reinforcements by a cost/benefit index. The cost corresponds to the deterioration of operating conditions (e.g. increased risk of load curtailment) if the equipment is postponed. The benefit is associated with the financial relief brought by the postponement. A computational package for determining this ranking has been developed and is being used by the Brazilian utilities as a subsidy for deciding the adjustment of their expansion plans.< >