Ukraine Power System Support Project (UPSS); Summer 2015 Ukraine Power System Dynamic Analysis (Phase III)

Previous phases identified some potentially critical points from steady state analysis point of view, real behaviour of the power system during observed (realized) hours recognized some others and dynamic stability study should examine all of them in more detail.

First stage of third phase of the project, besides the dynamic stability aspects in general, included also analysis of summer max and min regimes in order to identify critical parts of transmission network taking into account annual equipment maintenance schedule.

This phase of the Project included two scenarios (with and without the connections towards IPS/UPS) and different study cases for each of them. The main goal was to identify security margin and possible problems for the most critical contingencies from both steady state and dynamic stability point of view.

In parallel with previous, PSS/E Load Flow Training for Ukrenergo was conducted with the focus on Load Flow and NTC calculation methodology practiced within the ENTSO-E.

Type of services provided:

• Load Flow Analysis (Voltage Profile and overload analysis of the transmission network) Identifying of critical parts of the transmission network taking into account different scenarios and critical contingencies
• Dynamic Stability Analyses
• PSS/E Training course covered: Data Modeling, Simulations & Data Manipulation, Contingency Analysis, NTC Calculation, Merging of Models, Creation of Network Equivalents)