M. Ramirez, R. Castellanos, J. Calderón, Transmisión y Distribución, Análisis de Redes
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Impact Assessment of a VSC-HVDC Link on the Oscillation Modes of a Multi-machine System
Low frequency oscillation modes of a multi-machine power system, as affected by the implementation of a VSC-HVDC link between system areas, are investigated in this paper. For this purpose, a set of test cases for the operation of the DC link alone and in parallel with AC lines in a corridor are considered. Small-signal stability analysis and time domain simulations are performed to evaluate the impact of the HVDC link on system stability and performance. Eigenvalue analysis and results of simulation studies show the relative enhancement of system dynamics with the inclusion of the HVDC link.
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