# Search result: Catalogue data in Autumn Semester 2022

Electrical Engineering and Information Technology Master | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Master Studies (Programme Regulations 2018) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Energy and Power Electronics The core courses and specialisation courses below are a selection for students who wish to specialise in the area of "Energy and Power Electronics", see https://www.ee.ethz.ch/studies/main-master/areas-of-specialisation.html. The individual study plan is subject to the tutor's approval. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Core Courses These core courses are particularly recommended for the field of "Energy and Power Electronics". You may choose core courses form other fields in agreement with your tutor. A minimum of 24 credits must be obtained from core courses during the MSc EEIT. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Foundation Core Courses Fundamentals at bachelor level, for master students who need to strengthen or refresh their background in the area. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Number | Title | Type | ECTS | Hours | Lecturers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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227-0113-00L | Power Electronics | W | 6 credits | 4G | J. W. Kolar | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | Fields of application of power electronic converters; basic concept of switch-mode voltage and current conversion; derivation of circuit structures of non-isolated and isolated DC/DC converters, AC/DC- and DC/AC converter structures; analysis procedure and analysis of the operating behaviour and operating range; design criteria and design of main power components. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | Fields of application of power electronic converters; basic concept of switch-mode voltage and current conversion; derivation of circuit structures of non-isolated and isolated DC/DC converters, AC/DC- and DC/AC converter structures; analysis procedure and analysis of the operating behaviour and operating range; design criteria and design of main power components. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | Fields of application and application examples of power electronic converters, basic concept of switch-mode voltage and current conversion, pulse-width modulation (PWM); derivation and operating modes (continuous and discontinuous current mode) of DC/DC converter topologies, buck / boost / buck-boost converter; extension to DC/AC conversion using differences of unipolar output voltages varying over time; single-phase diode rectifier; boost-type PWM rectifier featuring sinusoidal input current; tolerance band AC current control and cascaded output voltage control with inner constant switching frequency current control; local and global averaging of switching frequency discontinuous quantities for calculation of component stresses; three-phase AC/DC conversion, center-tap rectifier with impressed output current, thyristor function, thyristor center-tap and full-bridge converter, rectifier and inverter operation, control angle and recovery time, inverter operation limit; basics of inductors and single-phase transformers, design based on scaling laws; Isolated DCDC converter, flyback and forward converter, single-switch and two-switch circuit; single-phase DC/AC conversion, four-quadrant converter, unipolar and bipolar modulation, fundamental frequency model of AC-side operating behaviour; three-phase DC/AC converter with star-connected three-phase load, zero sequence (common-mode) and current forming differential-mode output voltage components, fundamental frequency modulation and PWM with singe triangular carrier and individual carrier signals of the phases. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture notes and associated exercises including correct answers, simulation program for interactive self-learning including visualization/animation features. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Prerequisites / Notice | Prerequisites: Basic knowledge of electrical engineering / electric circuit analysis and signal theory. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

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227-0517-10L | Fundamentals of Electric Machines | W | 6 credits | 4G | D. Bortis, R. Bosshard | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | This course introduces to different electric machine concepts and provides a deeper understanding of their detailed operating principles. Different aspects arising in the design of electric machines, like dimensioning of magnetic and electric circuits as well as consideration of mechanical and thermal constraints, are investigated. The exercises are used to consolidate the concepts discussed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | The objective of this course is to convey knowledge on the operating principles of different types of electric machines. Further objectives are to evaluate machine types for given specifications and to acquire the ability to perform a rough design of an electrical machine while considering the versatile aspects with respect to magnetic, electrical, mechanical and thermal limitations. Exercises are used to consolidate the presented theoretical concepts. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | ‐ Fundamentals in magnetic circuits and electromechanical energy conversion. ‐ Force and torque calculation. ‐ Operating principles, magnetic and electric modelling and design of different electric machine concepts: DC machine, AC machines (permanent magnet synchronous machine, reluctance machine and induction machine). ‐ Complex space vector notation, rotating coordinate system (dq-transformation). ‐ Loss components in electric machines, scaling laws of electromechanical actuators. ‐ Mechanical and thermal modelling. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture notes and associated exercises including correct answers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Advanced Core Courses Advanced core courses bring students to gain in-depth knowledge of the chosen specialization. They are MSc level only. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Number | Title | Type | ECTS | Hours | Lecturers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

227-0117-00L | High Voltage Engineering | W | 6 credits | 4G | C. Franck, U. Straumann | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | High electric fields are used in numerous technological and industrial applications such as electric power transmission and distribution, X-ray devices, DNA sequencers, flue gas cleaning, power electronics, lasers, particle accelerators, copying machines, .... High Voltage Engineering is the art of gaining technological control of high electrical field strengths and high voltages. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | The students know the fundamental phenomena and principles associated with the occurrence of high electric field strengths. They understand the different mechanisms leading to the failure of insulation systems and are able to apply failure criteria on the dimensioning of high voltage components. They have the ability to identify of weak spots in insulation systems and to propose options for improvement. Further, they know the different insulation systems and their dimensioning in practice. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | - discussion of the field equations relevant for high voltage engineering. - analytical and numerical solutions/solving of this equations, as well as the derivation of the important equivalent circuits for the description of the fields and losses in insulations - introduction to kinetic gas theory - mechanisms of the breakdown in gaseous, liquid and solid insulations, as well as insulation systems - methods for the mathematical determination of the electric withstand of gaseous, liquid and solid insulations - application of the expertise on high voltage components - excursions to manufacturers of high voltage components | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture Slides | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Literature | A. Küchler, High Voltage Engineering: Fundamentals – Technology – Applications, Springer Berlin, 2018 (ISBN 978-3-642-11992-7) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Competencies |
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227-0247-00L | Power Electronic Systems I | W | 6 credits | 4G | J. Biela, F. Krismer | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | Basics of the switching behavior, gate drive and snubber circuits of power semiconductors are discussed. Soft-switching and resonant DC/DC converters are analyzed in detail and high frequency loss mechanisms of magnetic components are explained. Space vector modulation of three-phase inverters is introduced and the main power components are designed for typical industry applications. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | Detailed understanding of the principle of operation and modulation of advanced power electronics converter systems, especially of zero voltage switching and zero current switching non-isolated and isolated DC/DC converter systems and three-phase voltage DC link inverter systems. Furthermore, the course should convey knowledge on the switching frequency related losses of power semiconductors and inductive power components and introduce the concept of space vector calculus which provides a basis for the comprehensive discussion of three-phase PWM converters systems in the lecture Power Electronic Systems II. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | Basics of the switching behavior and gate drive circuits of power semiconductor devices and auxiliary circuits for minimizing the switching losses are explained. Furthermore, zero voltage switching, zero current switching, and resonant DC/DC converters are discussed in detail; the operating behavior of isolated full-bridge DC/DC converters is detailed for different secondary side rectifier topologies; high frequency loss mechanisms of magnetic components of converter circuits are explained and approximate calculation methods are presented; the concept of space vector calculus for analyzing three-phase systems is introduced; finally, phase-oriented and space vector modulation of three-phase inverter systems are discussed related to voltage DC link inverter systems and the design of the main power components based on analytical calculations is explained. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture notes and associated exercises including correct answers. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Prerequisites / Notice | Prerequisites: Introductory course on power electronics is recommended. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

227-0517-10L | Fundamentals of Electric Machines | W | 6 credits | 4G | D. Bortis, R. Bosshard | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | This course introduces to different electric machine concepts and provides a deeper understanding of their detailed operating principles. Different aspects arising in the design of electric machines, like dimensioning of magnetic and electric circuits as well as consideration of mechanical and thermal constraints, are investigated. The exercises are used to consolidate the concepts discussed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | The objective of this course is to convey knowledge on the operating principles of different types of electric machines. Further objectives are to evaluate machine types for given specifications and to acquire the ability to perform a rough design of an electrical machine while considering the versatile aspects with respect to magnetic, electrical, mechanical and thermal limitations. Exercises are used to consolidate the presented theoretical concepts. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | ‐ Fundamentals in magnetic circuits and electromechanical energy conversion. ‐ Force and torque calculation. ‐ Operating principles, magnetic and electric modelling and design of different electric machine concepts: DC machine, AC machines (permanent magnet synchronous machine, reluctance machine and induction machine). ‐ Complex space vector notation, rotating coordinate system (dq-transformation). ‐ Loss components in electric machines, scaling laws of electromechanical actuators. ‐ Mechanical and thermal modelling. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture notes and associated exercises including correct answers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

227-0526-00L | Power System Analysis | W | 6 credits | 4G | G. Hug | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Abstract | The goal of this course is understanding the stationary and dynamic problems in electrical power systems. The course includes the development of stationary models of the electrical network, their mathematical representation and special characteristics and solution methods of large linear and non-linear systems of equations related to electrical power networks. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Learning objective | The goal of this course is understanding the stationary and dynamic problems in electrical power systems and the application of analysis tools in steady and dynamic states. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Content | The course includes the development of stationary models of the electrical network, their mathematical representation and special characteristics and solution methods of large linear and non-linear systems of equations related to electrical power grids. Approaches such as the Newton-Raphson algorithm applied to power flow equations, superposition technique for short-circuit analysis, equal area criterion and nose curve analysis are discussed as well as power flow computation techniques for distribution grids. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Lecture notes | Lecture notes. |

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