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Contingency-constrained Congestion Management and Transmission Cost Allocation

2014; Óbuda University; Volume: 11; Issue: 7 Linguagem: Inglês

10.12700/aph.11.07.2014.07.6

2064-2687

Oana Pop, Constantin Bărbulescu, Stefan Kilyeni, Antheia Deacu,

Optimal Power Flow Distribution

Open access to the transmission network represents one of the important tasks for transmission and system operators.Moreover, increases of transactions in markets may lead to transmission network congestion.The approaches proposed for transmission congestion management are: generated power re-dispatching, generators outside the congested area dispatching, or consumed power mitigation for specific buses where it is possible.Transmission costs are able to be computed once the congestion has been solved and it is allocated to generators and consumers, using various methods.This paper analyzes congestion occurrence in case of N-1 contingencies and the allocation of transmission costs, using pro-rata and Bialek methods.The case study is performed for an existing large-scale systemthe Southern-Western side of the Romanian Power System.The results are relevant to for the Romanian TSO (Transmission System Operator) -Romanian Power Grid Company Transelectrica.