Electric drives + (4356)
  
Coordinating lecturer :Prof. dr. ir. Wilmar MARTINEZ 
  
Member of the teaching team :ing. Seppe DELWICHE 

Language of instruction : English
Credits: 4,0
  
Period: semester 2 (4sp)
  
2nd Chance Exam1: Yes
  
Final grade2: Numerical
 
Exam contract: not possible
Transitional curriculum
 
Sequentiality
 
   Mandatory sequentiality bound on the level of programme components
 
 
Group 1
 
  Following programme components must have been included in your study programme in a previous education period
    Electrical machines (5545) 6.0 stptn
 
Or group 2
 
  Following programme components must have been included in your study programme in a previous education period
    Electrical machines (4061) 5.0 stptn
 

Prerequisites

The student knows the operation of the transformer, DC motor and induction motor and can draw up the equivalence circuit for these electric machines.The student can calculate the mechanical forces due to friction, weight, acceleration and can translate these forces into potential energy, kinetic energy, mechanical energy and efficiency.


Content

Motivation:

Education in Electric drives is essential in the formation of engineers as it equips them with a systematic approach to navigate the complexity and wide-ranging applications of drive systems. In an era where drive systems are becoming increasingly intricate, including motors, control mechanisms, and system integration, a structured understanding is crucial. This course provides students with the tools and knowledge to analyze, design, and implement drive systems effectively, fostering a systematic mindset applicable across various engineering disciplines.

By emphasizing a systematic approach, the course enables students to identify and address challenges, optimize system efficiency, and ensure reliable operation. Moreover, it prepares them to stay at the forefront of technological advancements in motor technology, power electronics, and control techniques. With this comprehensive understanding, students are well-equipped to make informed decisions, troubleshoot problems, and contribute to ongoing research and innovation in drive systems.



Lectures (12 x 2u):

1. Rehearsal ELMA

Industrial applications of electric drives.

Structure and general properties of an electric propulsion system

General aspects of electric drives (structure, motor types, load types, influence of the environment, etc)

Sizing of electric drives

2. Regulated DC drives

Independently excited and permanent magnet DC motor: construction characteristics, etc

Control of a DC motor

Regulated one-quadrant drive, powered from AC mains

Two- and four-quadrant operation, powered from AC mains

Power supply from a DC mains

3. Power conversion in Drives

Power electronics components

Basic circuits for rectification and alternating, DC-DC converters, alternating current choppers.

Power supply units and brake units

Components for determining rotor speed and position

4. AC drives:

Induction machines

- Scalar control: subsynchronous cascade control, U/f control, field weakening

- Derivation and implementation of field orientation and direct torque control (DTC)

Synchronous machine types

- Synchronous machines with emphasis on permanent magnet machines with sinusoidal drive

- Brushless DC machine

- Switched reluctance machine

- Stepper motors

5. Applications

Selection of applications, applied to the resp. machine types: electric transport (hybrid and electric vehicles, trains), electric energy production (variable speed wind turbines), robotics



Exercises (6 x 2u):

Self-study with exercices based on lectures and labs.



Labo's (6 x 3u):

- Testing with Induction machine

- Testing with stepmotor

- Harmonic Analysis

- PCB design and assembly considerations

- Soldering and Assembly of own drive

- Testing of own drive


Organisational and teaching methods
Organisational methods  
Lecture ✔  
Practical ✔  
Small group session ✔  
Teaching methods  
Group work ✔  
Report ✔  


Evaluation

Semester 2 (4,00sp)

Evaluation method
Written evaluation during teaching period40 %
Transfer of partial marks within the academic year✔
Written exam60 %
Closed-book ✔
Multiple-choice questions✔
Open questions✔

Second examination period

Evaluation second examination opportunity different from first examination opprt
No


Learning outcomes
Master of Energy Engineering Technology (English)
  •  EC 

    • EC2 - The holder of the degree possesses a comprehensive set of energetic (thermal and electrical) techniques and technologies and is able to creatively conceptualise, plan and execute these as an integrated part of a methodological and systematically ordered series of handlings within a multidisciplinary project with a significant research and/or innovation part.

     
  •  DC 

    • DC-M1 - The student has knowledge of the basic concepts, structures and coherence.

      
  •  BC 
    		• The student knows the basic electrical machines treated under ELMA (2ba) or TELTS (SCH) and expands this knowledge with the cons truction, operation and control of the stepper motor and reluctance motor.

    The student knows how a rectifier works and knows the consequences for harmonic pollution.

    The student knows how an inverter works to control an induction motor, B LDC motor, stepper motor and synchronous motor.

    The student knows the operation and implementation of U/f control and F OC (vector control).
     
  •  DC 

    • DC-M5 - The student can analyze problems, logically structure and interpret them.

      
  •  BC 
    		• The student knows the equivalent scheme of different electrical machines.

    The student knows the different factors that contribute to the efficiency of a system or more specifically to the efficiency of an induction motor.
     
  •  DC 

    • DC-M7 - The student can use selected methods and tools to implement solutions and designs.

      
  •  BC 
    		• The student can translate the basic data of a powertrain into torques and speeds for the selection of the desired gearbox and mo tor for the powertrain.
  •  EC 

    • EC4 - The holder of the degree has advanced knowledge of and insight in the principles and applications in electrical engineering, possibly complemented with automation or material science and production, in which he/she can independently identify and critically analyse complex, practice-oriented design or optimisation problems, and  methodologically create solutions with eye for data processing and implementation and with attention to the recent technological developments.

     
  •  DC 

    • DC-M2 - The student has insight in the basic concepts and methods.

      
  •  BC 
    		• The student can translate the advanced data of a powertrain into torques and speeds for the selection of the desired gearbox and motor for the powertrain.
  •  EC 

    • EC5 - The holder of the degree has specialist knowledge of and insight in principles and applications within the domain of energy and power systems in which he/she can independently identify and critically analyse unfamiliar, complex design or optimisation problems, and methodologically create solutions with eye for data processing and implementation, with the help of advanced tools, aware of practical constraints and with attention to the recent technological developments.

     
  •  DC 

    • DC-M8 - The student can evaluate knowledge and skills critically to adjust own reasoning and course of action accordingly.

      
  •  BC 
    		• The student can design own electric systems
 
  EC = learning outcomes      DC = partial outcomes      BC = evaluation criteria  
Offered inTolerance3
Master of Energy Engineering Technology (English) J



1   Education, Examination and Legal Position Regulations art.12.2, section 2.
2   Education, Examination and Legal Position Regulations art.15.1, section 3.
3   Education, Examination and Legal Position Regulations art.16.9, section 2.