Module : EA117Title :
Number of hours :
Lecture : 10.67 h
ECTS credits :
Tutorial classes : 8.33 h
VINASSA Jean-Michel - Responsible
Shared by UV(s) :
first year module
Electrical engineering has much evolved since these 30 last years in particular in the field of power electronics. The traditional distinction between electrical engineering (high tension currents) and signal electronics (low currents) is now out-of-date. Electrical machines require various power electronic devices (rectifiers, choppers, inverters…) controlled by signals.
This course aims to present the energy generators and receivers, to explain their characteristics, mainly external, and to establish models (equivalent electric diagrams). The knowledge of these models (parameters, conditions of validity, limits…) and of the methods used to describe their parameters, is essential to the electronics engineer confronted with the implementation of power in a system.
The second and third year lectures in power electronics and control engineering, partly based on knowledge in this course.
Chap 1 Tension and current in power electronics
1) Sinusoidal mode single-phase current and voltage. Vectorial representation of Fresnel. Complex notation. Impedance of dipoles. Power definitions. Boucherot’s Theorem.
2) Non-sinusoidal periodic mode.
3) Balanced three-phase systems.
4) Power measurements in single-phase current and three-phase current.
Chap 2 Magnetic circuits (MC). Transformers.
1) Review of electromagnetism. Definition of a linear MC. Ohm's law for linear MC. Analysis of non-linear MCs.
2) Transformer in single-phase sinusoidal voltage mode. The perfect transformer and the real transformer.
3) Transformer in single-phase impulse current mode. Application: Power Flyback supply.
Chap 3 D.C. machine
2) Calculating the torque moments and the electromotive force (voltage)
3) General relations. Reversibility of the machine, motor or generator.
4) Operating features generator machine
5) Operating features motor machine
6) Dynamic model.
Chap 4 Obtaining a variable DC tension.
1) General information on static inverters.
2) Rectification single-phase current with diode and thyristors.
3) Three-phase rectification.
Chap 5 AC machine. Machines with three-phase alternative courses.
1) Rotating magnetic field : principle. Magnetic circuit of rotating machines.
2) Asynchronous motor: General information. Transformer equivalent electric diagram. Power and couples. Speed regulation.
3) Synchronous machine.
Chap 6. Electric safety.
Cours de Physique des classes préparatoires (électromagnétisme, électrocinétique, signaux ...)
Polycopiés de cours.