Power Systems Dynamics

The course "Power Systems Dynamics" is devoted to the study behaviour of electrical power systems in non-steady state. Knowledge of the dynamic behaviour of electrical power systems and their components is important in order to predict whether the system (or a part thereof) remains in a stable state after a disturbance. The time frame of observation ranges from milliseconds to several minutes, depending on the kind of disturbance and the influence of applied controls. For each time frame, special models of the network components are derived. In this course, the model of the synchronous generator, the voltage source converter, and their associated control systems receive special attention due to their dominant influence on the dynamic behaviour of the power system. In the computer assignments, the theory is put into practice by means of software based simulations in DIgSILENT PowerFactory as well as scripting in Python and Matlab. Subject to investigation are: modelling of syncrhonous generator and voltage source converter for RMS simulations, frequency and voltage controls, model-based and measurement-based eigenvalue analysis, wide-area monitoring, damping control, and RMS simulation of interconnected power systems.