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The existing power grid infrastructures in many countries are primarily based on technologies that have been developed as centralized systems in which power is generated at major power plants and distributed to consumers through transmission and distribution lines. In the recent decade, with the increasing penetration of renewable energy sources such as solar and wind power, and smart electrical appliances,...
The rotor of the doubly fed induction generator (DFIG) is fed back from the grid via back-to-back converters. Under the disturbance, the rotor current increases to maintain the terminal voltage and the rotor rotating speed of DFIG, while the current in the grid side converter also increases to keep the DC-Link voltage constant. In this situation, the overshoots of the currents flowing through the...
The problem of generation scheduling for an electric power system with random load and transmission system disturbances is considered. Using security regions, both the steady-state and dynamic performance of the system is accounted for. The measure of security of the system is expected time to insecurity and an iterative technique for constructing a sequence of schedules is given, such that they approach...
The purpose of solving power flow equations is examined. Our work on the analysis of power flows without solving power flow equations is reviewed. The application of the results and further extension of the ideas to security assessment and control are also mentioned.
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