Valid from: Spring 2023
Decided by: Maria Sandsten
Date of establishment: 2023-04-24
Division: Industrial Electrical Engineering and Automation
Course type: Course given jointly for second and third cycle
The course is also given at second-cycle level with course code: EIEN60
Teaching languages: English, Swedish
The purpose of the course is to provide good knowledge of the basics of power electronically controlled energy conversion in drive systems for e.g. electric vehicles, wind power generation, solar cell technology and mains connected batteries. The course builds the understanding of the control methods on detailed physical modeling of various energy converters. Generic models form the basis for method development and give the student tools to apply the methods also to energy converters other than those covered in the course. The course applies the methods to a selection of linear and rotating DC and AC machines, switched audio systems, DC / DC converters, active power filters, high voltage DC systems (HVDC), battery charging systems and power supply for electric vehicles (various types of chargers and electric roads).
Knowledge and Understanding
For a passing grade the doctoral student must
Competences and Skills
For a passing grade the doctoral student must
Judgement and Approach
For a passing grade the doctoral student must
Lectures and arithmetic exercises Sources and loads: Physical properties for electrical machines, cables, batteries etc. These properties are modeled from a power electronic control perspective, including parasitic components load currents and earth currents. Power electronic converters: Summary of the characteristics of power electronic converters such as 1Q, 2Q and 3-phase 2-level converters. Modulation and control: Carrier wave modulation, overmodulation, current control (sampled and with tolerance band), voltage control, torque control, speed control, optimization of efficiency, minimization of ripple. Applications: Power and torque control of linear and rotating DC and AC machines including field weakening, optimization of efficiency and minimization of torque ripple. Active power filters and connection of batteries to the power grid as energy and power sources. Uninsulated and insulated DC / DC converters for adjusting voltage levels and galvanic isolation of power systems. Vehicle power systems with many power electronic converters on the same DC link / battery, with respect to conducted electromagnetic compatibility (EMC). Simulation tasks and laboratory work Active power filter DC / DC converter Electric machine (PMSM) in vehicle drive system. These labs are prepared through simulation work, which is reported as a homework before the lab. After the laboratory, a report is written where simulations and measurements are compared.
Alaküla M, Karlsson P: Kompendium i Power Electronics – Devices, Circuits, Control and Applications. IEA, LTH.
Types of instruction: Lectures, laboratory exercises, exercises
Examination formats: Written exam, written report.
Approved laborations and simulations that are reported continuously. Written exam (5 h) with both problem solving and theoretical questions.
Grading scale: Failed, pass
Examiner: Professor Mats Alaküla
Assumed prior knowledge: ESSF01 Analogue Circuits, ESS030/ESSF20 Physics of Devices, ESSF15 Electrical Engineering (EE, WE), MIE012/EIEF35 Electrical Engineering, basic course (ME)or EITF90 Electromagnetics and Electronics (FE) and FRT010/FRTF05 Automatic Control, Basic Course.
may not be included in a degree together with ETEF10 Power electronics
Start date: 2024-03-18
End date: 2024-06-02
Course pace: Full time
Send an e-mail to the examiner
Course coordinator: Mats Alaküla <mats.alakula@iea.lth.se>
Web page: www.iea.lth.se/kel/