Power Systems Dynamics, Stability, and Controls

Catalog description

This course provides a broad exploration of the principles of dynamics, stability, and control of power systems. In particular, it focuses on the angle stability aspect. It will cover dynamic modeling requirements of synchronous generators and dynamic load modeling for stability studies, modeling of generator excitation systems, different types of system stability, modeling and analysis of sub-synchronous oscillations, and some selected special topics relevant to modern power systems. Basic notions of Lyapunov stability will be briefly described. The synchronous generator modeling in rotating d-q-0 frame will be presented along with different degree of simplifications, magnetic saturation models, DC and AC excitation system modeling, and corresponding per unit systems. Integration of such models for stability study of multimachine system will be analyzed. Detailed treatment of small-signal stability analysis for a single-machine-infinite-bus system including the effect of excitation systems and design of power system stabilzers will be presented followed by special techniques to analyze small-signal stability of large-scale multi-machine systems. Numerical integration methods for solving the initial value problem of governing differential and algebraic equations describing power system dynamics will be described in the context of transient stability simulations followed by direct method of transient stability analysis. Fundamentals of subsynchronous oscillations and methods for corresponding stability analysis will be discussed. Finally, dynamic modeling of wind generation and VSC HVDC transmission system will be very briefly introduced.