Transmission system congestion analysis based on a European electricity market and network simulation framework

摘要

The coupling of electricity markets and the increasing feed-in of renewable energy sources (RES) cause a rising number of congestions in the European transmission network. In order to ensure a secure network operation suitable measures for resolving these congestions need to be found. In this context, a methodology for analyzing congestions in transmission systems is presented in this paper. The methodology is based on a European electricity market and network simulation framework including internal congestion management by redispatch and control of high-voltage direct current (HVDC) links. In particular, the methodology enables to determine the frequency of occurrence, the causes as well as a ranking of existing congestions regarding their constraining effect on social welfare. The simulation results of a Europe 2030 case study underline that the introduced methodology offers a detailed insight into the system and can help to identify suitable network extension measures for avoiding overloads.