Power Flow Partitioning with Power Flow Decomposition, Full Line Decomposition and Power Flow Coloring

Because of the highly meshed European grid structure with interconnections between multiple transmission system operators (TSOs), every TSO is influenced by physical power flows that are not a result of his own market flows and that can increase the utilization in his network area. Thus, the identification of partial power flows and their originators is necessary. This paper will highlight three different partial power flow identification methods. The Power Flow Decomposition (PFD) using the AC power flow, the Full Line Decomposition (FLD) and the Power Flow Coloring (PFC) based on the DC power flow with different technical and market-oriented assumptions. The paper will explain and compare all the methods considering their assumptions, advantages and disadvantages as well as their partial power flow results in a small test network.