Basic power electronics in energy systems

• describe and calculate the concepts of efficiency, mean value and power factor
• classify converter types and pulse-width modulation
• explain crucial properties of passive and active components in relation to power converters
• determine the time course of voltages and currents for the basic converter topologies (buck, boost and buck-boost) and derivatives thereof
• derive the transfer function for both the basic topologies and derivatives thereof
• determine basic parameters in power electronics circuits based on simulations
• design transformers in galvanically separated topologies (f.x. forward, flyback, push-pull, half-bridge, full-bridge)
• determine basic parameters in switch mode circuits based on measurements on these
• calculate signals and power losses in switch-mode power circuits
• specify power converters and their components using English technical language under realistic working conditions for practicing engineers
• clarify the operation of single-phase and three-phase pulse-width modulated inverters and pulse-width modulated rectifiers
• explain crucial features of V / Hz control of three-phase AC machines and frequency converters

Overview of power electronics
Passiv components: capacitors and inductors
Signals: RMS value and average value
Active components: diodes and MOSETs as switches
Rectifier circuits
Nonisolated converters: buck, boost and buck-boost converters
Properties, states and supporting circuits of power converters
Isolated converters: single phase tranformers, forward and flyback converters
Single- and three-phase PWM inverters and rectifiers
Modulation strategies (PWM)
Three-phase V/Hz control of AC machines
Single-/multiple-quadrant operation
Switch mode drives and audio amplifiers
Simple feedback systems

Electrical components and Ohm’s Law & Kirchhoff’s rules, such as:
Electrical circuits 1 & 2 or
Electrical Engineering & Analog Electronics or
Introducing Electronics & Circuit Theory 2 or
corresponding
Furthermore recommended: basic understanding of Maxwell’s equations, such as:
Electromagnetism or Electrophysics and Materials
Signals and systems, such as:
Linear systems and signals.
(If in doubt, contact to the course responsible!)

All learning motivation and initiativ must come from the student! Each student is responsible for their own learning. Learning is encouraged as co-creation with group and class members.
Offered teaching material through videos and quizzes, chat-based communication, artificial intelligens, peer-review, problem solving and lab work, exercises

A number of exercises/problems are part of the course. Those are distributed throughout the semester.
E-learning: the course is ready for digital twin university & education 4.0: the theory part can be taken “self-paced” to a high extend (based on videos, quizzes and chat-based help).
The hands-on part can be organised as a camp (but either camp or as regular course – not both).
The setup of the course highly reflects working conditions of a practicing engineer.

Minimum: 10.

Please be aware that this course will only be held if the required minimum number of participants is met. You will be informed 8 days before the start of the course, whether the course will be held.