Electromechanical Oscillations in Hydro-Dominant Power Systems: An Application to the Colombian Power System
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The Department of Electrical and Computer Engineering (ECpE) contains two focuses. The focus on Electrical Engineering teaches students in the fields of control systems, electromagnetics and non-destructive evaluation, microelectronics, electric power & energy systems, and the like. The Computer Engineering focus teaches in the fields of software systems, embedded systems, networking, information security, computer architecture, etc.
History
The Department of Electrical Engineering was formed in 1909 from the division of the Department of Physics and Electrical Engineering. In 1985 its name changed to Department of Electrical Engineering and Computer Engineering. In 1995 it became the Department of Electrical and Computer Engineering.
Dates of Existence
1909-present
Historical Names
- Department of Electrical Engineering (1909-1985)
- Department of Electrical Engineering and Computer Engineering (1985-1995)
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- College of Engineering (parent college)
- Department of Physics and Electrical Engineering (predecessor)
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Abstract
Power system modeling that captures the dynamic behavior of the different components interacting in an electric grid is useful in understanding some observed phenomena that have not been easy to reproduce by simulation. Therefore, this thesis focuses on the modeling of hydro-dominant power system to study the origin of some very low frequency oscillations (VLFOs) that have not been explained or reproduced; for example, VLFOs in the Colombian Power System have been detected in the 0.05Hz range and their origin have not been clarified. Within this work modeling guidelines for hydro-electric power plants to capture the effects of the hydraulic coupling of turbines, their control strategies, and nonlinearities in the controls and actuators will be developed. This level of modeling will enable to reproduce oscillatory observation by simulation as the ones in the Colombian system for further analysis. Finally, robust control is proposed to damp oscillatory modes to account the effect of the dynamic behavior of coupled systems and nonlinearities in their controls.