Electrical Power Engineering
Prof. Dr.-Ing. A. Binder
Prof. Dr.-Ing. G. Griepentrog
Prof. Dr.-Ing. J. Hanson
Course Cycle: SS (3+1)
Part 1: “Electric Energy Converters”
An introduction to basic principles of electric-mechanic energy conversion is given. The concepts and the applications of electric machines and transformers are discussed. First the basic laws (Faraday´s law, Ampere´s law, Lorentz´s forces, magnetization of iron, permanent magnets) are repeated and their application for energy conversion is shown. Transformation of electric energy into mechanical energy and vice versa is investigated with a simple converter structure.
This knowledge is used to explain the features of modern single phase and three phase transformers for locos and power grids, the performance of converter-fed dc machines as speed variable drives and the standard induction machine as lie-fed and inverter-fed multi-purpose motor. The synchronous machine is discussed mainly as generator in power plants for generation of electric energy.Examples of several different electric machines with power up to about 50 kW along with experiments are demonstrated during the lectures.
Part 2: “Power Electronics”
The part “power electronics” regards basics of switching power converters, which are energy-efficient and enable a high dynamic control. Starting with the Buck and boost converters, the combination (buck/boost converter) is regarded, with the application example of controlling a dc motor tram drive.
The switch mode power supply is introduced as another well-known application. Attention is paid to the diode rectifier with capacitive load, the flyback converter, and the medium-frequency transformer. Finally, the generation of a three-phase voltage system with variable frequency and amplitude is regarded, which is necessary for driving three-phase motors. The appropriate device is a three-phase inverter with constant DC link voltage, which is illustrated with the help of a demonstration setup.
Part 3 deals with generation, transfer and distribution of electrical energy.
The course language is german, therefore getting all informations to this link: Grundlagen der Energietechnik