Impact of Synchronous Condensers on Power System Static Voltage Stability Considering Line Contingencies in the Presence of Renewable Generation

Ever-growing electrical loads are having a massive impact on the operation and stability of the power system. Moreover, the integration of renewable generation poses various challenges to the future power system, especially regarding stability. Thus, this paper presents the impact of synchronous condensers on static voltage stability analysis for a test transmission network, considering line contingencies, in the presence of renewable generation. The main purpose of this study was to identify critical buses in the power system when line contingencies occur. Uncertainty in the form of (N-1) and (N-2) contingencies was considered in this study. The impact of renewable generation was also assessed. To analyse the static voltage stability, the conventional power-voltage curve method, using continuation power flow, was applied on the IEEE 14-bus test system. DIgSILENT PowerFactory software simulations were used to obtain the results. The P- V analysis accurately quantified the critical buses for both cases, considering (N-1) and (N-2) line contingencies.