Please note! Course description is confirmed for two academic years (1.8.2018-31.7.2020), which means that in general, e.g. Learning outcomes, assessment methods and key content stays unchanged. However, via course syllabus, it is possible to specify or change the course execution in each realization of the course, such as how the contact sessions are organized, assessment methods weighted or materials used.
LEARNING OUTCOMES
After the course, students will be able to:
1) describe typical applications of electric drives and their performance requirements;
2) calculate the required electromagnetic torque of the motor for various mechanical loads;
3) build simulation models for cascade-controlled DC motor drives and scalar-controlled induction motor drives;
4) tune a PI speed controller based on the mechanical parameters;
5) select the motor and the converter for simple applications.
Credits: 5
Schedule: 09.09.2020 - 09.12.2020
Teacher in charge (valid 01.08.2020-31.07.2022): Marko Hinkkanen, Marko Hinkkanen, Jorma Kyyrä
Teacher in charge (applies in this implementation): Marko Hinkkanen, Marko Hinkkanen
Contact information for the course (valid 17.08.2020-21.12.2112):
You can contact Marko Hinkkanen via email: marko.hinkkanen@aalto.fi.
CEFR level (applies in this implementation):
Language of instruction and studies (valid 01.08.2020-31.07.2022):
Teaching language: English
Languages of study attainment: English
CONTENT, ASSESSMENT AND WORKLOAD
Content
Valid 01.08.2020-31.07.2022:
Applications of electric drives and power-electronic systems. Equation of motion, typical load torque profiles, gears and transmissions. Cascade-controlled DC motor drives. Permanent-magnet synchronous motor drives, space vectors. Motor and converter selection.
Applies in this implementation:
Tentative lecture plan:
- Syllabus, introduction
- DC motor model
- Mechanics
- Losses and heat transfer
- DC motor dynamics
- DC-DC conversion, PWM
- Cascade control of a DC motor drive
- Elementary AC machines, 3-phase systems
- Space-vector models
- Field-oriented control of a PMSM drive
- Other AC motor and converter types, future trends
- Guest lecture
Assessment Methods and Criteria
Valid 01.08.2020-31.07.2022:
Assignments, examination.
Applies in this implementation:
The available points are:
Available points Assignment 1 10 Assignment 2 20 Exam 70 Total 100 The course grade depends on the total points as follows:
Total points Grade 50-59 1 60-69 2 70-79 3 80-89 4 90-100 5
Workload
Valid 01.08.2020-31.07.2022:
Contact teaching (lectures, exercises, instruction sessions), assignments, individual working (preparing for and reviewing after lectures and exercises, preparing for the examination).
Applies in this implementation:
Estimated student workload is given below:
Contact (h) Individual (h) Total (h) Lectures (à 2 h) 24 24 48 Exercises (à 2 h) 12 12 24 Assignments (2) 8 24 32 Preparing for the exam 24 24 Taking the exam 3 3 Total (h) 44 87 131 Weekly individual working is necessary for learning
- Reading assignments
- Reviewing lecture slides and exercises
- Completing homework assignments
DETAILS
Study Material
Applies in this implementation:
Course materials are available at MyCourses:
- Lecture slides
- Exercise materials
- Instructions for homework assignments
Readings (selected pages):
- Electric Motors and Drives: Fundamentals, Types, and Applications by A. Hughes and B. Drury (2013)
(online: http://app.knovel.com.libproxy.aalto.fi/hotlink/toc/id:kpEMDFTA01/electric-motors-drives/electric-motors-drives) - Control of Voltage-Source Converters and Variable-Speed Drives by L. Harnefors, M. Hinkkanen, O. Wallmark, and A. G. Yepes (2015)
(available at MyCourses)
Prerequisites
Valid 01.08.2020-31.07.2022:
Circuit theory, basics of electrical power engineering, analog control.
SDG: Sustainable Development Goals
9 Industry, Innovation and Infrastructure
12 Responsible Production and Consumption
FURTHER INFORMATION
Details on the schedule
Applies in this implementation:
Date Lecture Problem-solving exercise Classroom instruction for assignments 9.9.2020 1, 2 16.9.2020 3 1 23.9.2020 4 2 30.9.2020 5 1a 7.10.2020 6 3 14.10.2020 7 1b Exam week 28.10.2020 8 4 4.11.2020 9 2a 11.11.2020 10 5 18.11.2020 11 2b 25.11.2020 12 6