Transmission usage allocation method for the flow-based capacity allocation

In many countries, the electric power system and market interconnection is undergoing. Especially in Europe, there is a large interconnection project aiming pan-European power market. ETSO and Europex charged to develop harmonization of network access rules propose flow-based market coupling to manage cross-border congestion. In this methods, Power transmission distribution factor (PTDF) is used to measure sensitivity of the bids to the congestion. It is a simple way of understanding how much generation effect on congested line, but it depends on choosing slack bus. This paper describes slack independent sensitivity algorithm for a flow-based capacity allocation method.