Credits: 5
Schedule: 27.02.2019 - 29.05.2019
Contact information for the course (applies in this implementation):
You can contact Marko Hinkkanen via email: marko.hinkkanen@aalto.fi.
Teaching Period (valid 01.08.2018-31.07.2020):
IV-V
Learning Outcomes (valid 01.08.2018-31.07.2020):
After the course, students will be able to:
1) draw and explain block diagrams of typical vector-controlled and DTC-controlled drive systems;
2) design three-phase current controllers;
3) select current references for various AC motors;
4) build simulation models for drive systems and power-converter systems;
5) explain the most essential relationships between control of AC motor drives and control of grid converters.
Content (valid 01.08.2018-31.07.2020):
Characteristics and models of AC motors in electric drives. Current control and motion control. Control methods based on the vector model. Estimation of flux and speed for sensorless control. Control of grid converters.
Details on the course content (applies in this implementation):
Tentative lecture plan:
- Introduction, induction motor (IM)
- Scalar-controlled IM drive
- Vector-controlled IM drive
- Pulse-width modulation (PWM) and current control
- Sensorless IM drive, direct torque control (DTC)
- Grid-connected converter
- LCL filter
- Grid faults and disturbances
- Lossless magnetic field, elementary synchronous machine
- Interior permanent-magnet synchronous motor (IPM) drive
- Sensorless IPM drive
- Recap, demo
Assessment Methods and Criteria (valid 01.08.2018-31.07.2020):
Assignments, examination.
Elaboration of the evaluation criteria and methods, and acquainting students with the evaluation (applies in this implementation):
The available points are:
| Available points | |
| Assignment 1 | 15 |
| Assignment 2 | 15 |
| 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 01.08.2018-31.07.2020):
Contact teaching (lectures, exercises, instruction sessions), assignments, individual working (preparing for and reviewing after lectures and exercises, preparing for the examination).
Details on calculating the workload (applies in this implementation):
Estimated student workload is given below:
| Contact (h) | Individual (h) | Total (h) | |
| Lectures (à 2 h) | 22 | 22 | 44 |
| Exercises (à 2 h) | 10 | 10 | 20 |
| Assignments (2) | 8 | 24 | 32 |
| Preparing for the exam | 24 | 24 | |
| Taking the exam | 3 | 3 | |
| Total (h) | 42 | 85 | 127 |
Weekly individual working is necessary for learning
- Reading assignments
- Reviewing lecture slides and exercises
- Completing assignments
Details on the course materials (applies in this implementation):
- Lecture slides
- Exercise materials
- Assignments
- Selected pages of "Control of Voltage-Source Converters and Variable-Speed Drives" by L. Harnefors, M. Hinkkanen, O. Wallmark, and A. G. Yepes (2015)
Course Homepage (valid 01.08.2018-31.07.2020):
https://mycourses.aalto.fi/course/search.php?search=ELEC-E8402
Prerequisites (valid 01.08.2018-31.07.2020):
ELEC-E8405 Electric Drives (or similar knowledge)
Grading Scale (valid 01.08.2018-31.07.2020):
0-5
Registration for Courses (valid 01.08.2018-31.07.2020):
WebOodi
Further Information (valid 01.08.2018-31.07.2020):
Language class 3 English
Details on the schedule (applies in this implementation):
Tentative schedule is given below:
| Date | Time | |
| 8:15–10:00 | 10:15–12:00 | |
| 27.2. | L1 | L2 |
| 6.3. | L3 | E1 |
| 13.3. | L4 | A1a |
| 20.3. | L5 | E2 |
| 27.3. | L6 | A1b |
| 3.4. | L7 | E3 |
| 10.4. | No teaching | |
| 17.4. | L8 | A2a |
| 24.4 | L9 | E4 |
| 1.5. | Vappu | |
| 8.5. | L10 | A2b |
| 15.5. | L11 | E5 |
| 22.5. | Demo | Demo |
| 29.5. | Exam at 9:00–12:00 | |
L = lecture
E = problem-solving exercise
A = assignment instruction session
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