Impacts of Renewable Energy on Transient and Voltage Stability of Electric Power Systems

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Stability is a fundamental premise for secure operation of every electric power system. As the loading demands are constantly increasing and the transmission networks are aging, the operating conditions of worldwide power systems have been pushed ever closer to their stability limits. Meanwhile, the integration of renewable energy sources has been constantly increasing. Particularly, Canada is a world leader in the production and use of all kinds of renewable energy. Although renewables bring numerous benefits, they also pose new challenges to power system stability. For example, the distinct dynamic responses of wind turbines and photovoltaic generators to disturbances may aggravate the contingencies, and thus deteriorate the stability of the overall power grid. As the penetration of renewables continues to increase in the foreseeable future, it is imperative to study the impacts of different renewables on various power system stability properties in order to enhance the stability and reliability of modern low carbon power systems.