Power Electronics I

Course Information
TitleΗλεκτρονικά Ισχύος Ι / Power Electronics I
SchoolElectrical and Computer Engineering
Cycle / Level1st / Undergraduate
Teaching PeriodWinter
CoordinatorCharalampos Dimoulias
Course ID600000988

Programme of Study: Electrical and Computer Engineering

Registered students: 32
OrientationAttendance TypeSemesterYearECTS
ELECTRICAL ENERGYElective Courses745

Class Information
Academic Year2021 – 2022
Class PeriodWinter
Instructors from Other Categories
Weekly Hours6
Class ID
Course Type 2016-2020
  • Scientific Area
Course Type 2011-2015
Specific Foundation / Core
Mode of Delivery
  • Face to face
The course is also offered to exchange programme students.
Language of Instruction
  • Greek (Instruction, Examination)
  • English (Examination)
Learning Outcomes
The students should be able to: 1) analyze single-phase and three-phase circuits with diodes and thyristors 2) calculate the waveforms of the currents and voltages at the dc and ac part of various power-electronic converters 3) calculate in a mathematical way the level of the dc currents and voltages and of the ac currents of various power-electronic converters implemented with diodes or thyristors 4) calculate the current harmonic distortion at the ac side of the power-electronic converters 5) calculate the voltage harmonic distortion at the point of common coupling of the converter with the power grid.
General Competences
  • Apply knowledge in practice
  • Retrieve, analyse and synthesise data and information, with the use of necessary technologies
  • Make decisions
  • Work in teams
Course Content (Syllabus)
Properties and operation of the most commonly used power electronic switches (diodes, thyristors, IGBTs, MOSFETs, etc). Ssimple diode-rectifier circuits. Single-phase full-bridge diode rectifier with constant current or constant voltage load. Current commutation phenomenon. Current harmonics caused by the operation of single-phase full-bridge diode rectifiers. The effect of the current harmonics on the voltage harmonics is also addressed. Three-phase full-bridge diode rectifier with constant current or constant voltage load. Simple dc-ac rectifier circuits using thyristors. Single-phase and three-phase full-bridge implementing thyristors for the control of the dc voltage. Rectifying and inverting actions are addressed. Single-phase and three-phase full-bridge implementing thyristors for the control of the dc voltage. The most common power quality problems arising by the operation of thyristors bridges.
Power-electronic switches, rectifiers (ac/dc) and inverters (dc/ac) with diodes and thyristors, current commutation.
Educational Material Types
  • Slide presentations
  • Book
Use of Information and Communication Technologies
Use of ICT
  • Use of ICT in Communication with Students
The communication with students, for matters concerning the course (announcements, distribution of ppt slides, exams results, other relative web sites, etc) is made via the web site of the course: http://alexander.ee.auth.gr:8083/eTHMMY/cms.downloadCategory.data.do?method=jsplist&PRMID=169
Course Organization
Laboratory Work150.5
Student Assessment
1) To each group of 3 students, a project is assigned. The written essay of the project is examined and gets a grade. A period of at least one month is given to each group to carry out the project and write the essay. The essay must be submitted 10 days before the oral examination of the students. 2) The students, in groups of 5, may attend an optional lab exercise. A written essay is submitted after the execution of the lab exercise. 3) The students are examined orally. 4) the final grade of the course is deduced as a combination of 1), 2) and 3) with 3) having the largest weight.
Student Assessment methods
  • Written Assignment (Summative)
  • Oral Exams (Summative)
  • Labortatory Assignment (Summative)
Course Bibliography (Eudoxus)
Εισαγωγή στα ηλεκτρονικά ισχύος, Mohan Ned,Undeland Tore A.,Robbins William P.
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