Power system stability control using Voltage Source Converter based HVDC in power systems with a high penetration of Renewables

This paper demonstrates the stabilization of a large power system with a high penetration of Renewable Energy Sources, such as wind or photovoltaic, using Voltage Source Converter based HVDC links. Due to the reduction of system inertia, frequency oscillations are expected to increase unless additional control measures are added to the system. Based on global power system measurements, a Model Predictive Control scheme, which modulates the power injections of the HVDC link, will enable the additional controllability to damp the power oscillations and stabilize the system. Scenarios with different penetrations of renewables and disturbance cases are simulated in the continental European power system. The simulations illustrate the performance enhancement gained by the global Model Predictive Control-based grid controller, compared to a local control scheme and HVDC links with constant power injections.