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Static and Dynamic Analysis of Reconnection of Former Two UCTE Synchronous Zones

Considering the European electric power systems there is a yearly increased consumption of electricity everywhere (from 1% to even 4% in some cases). The processes of developing and connecting existing electric power systems are very complex. Preconditions for connecting two UCTE synchronous zones (1st and 2nd Pan-European synchronous zones) in one European electric power system were created in 2000. The UCTE synchronous zones were formed when the outage of the 400 kV overhead line Ernestinovo – Mladost on September 26, 1991 caused the system to separate. The reconnection was carried out on October 10, 2004 following the important decision which was passed by the UCTE Steering Committee at its meeting in early 2002 in Brussels. Static and dynamic analysis with respect to reconnection of electric power systems, such as transit analysis, analysis of capacity flows, short circuits, N-1, dynamic behavior, angle analysis, voltage stabilities, frequency oscillations, changes of capacity flows in a short time period, were outlined in the paper. Special attention is paid to the mathematical base significant for carrying out the analysis of conditions in certain electric power system.

European transmission system; Reconnection; Static and dynamic analysis; Synchronous zone

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