Proejct Oriented Teaching in Power Electronics and Drives by Professor Frede Blaabjerg

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S:\bj_jn\shw\Master_programme_in_power_electronics

Proejct Oriented Teaching in Power Electronics and Drives

by

Professor Frede BlaabjergAalborg University

[email protected]

http://www.iet.auc.dk/~fbl/

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The City of Aalborg:

Area as at January 1st 2003 560 km2

Population figure as at January 1st 2003 162,521

Percentage population of the whole country3.02

University of Aalborg:Total number of students (A+B+C)13,329A. Humanities, total 3,535- Guest education 139- Ordinary education 2,759- Ph. D. students 83- Open education 554B. Social science, total 4,640- Guest education 201- Ordinary education 3,457- Ph. D. students 83- Open education 899C. Technology and science, total 5,154- Guest education 313- Ordinary education 4,053- Ph. D. students 341- Open education 447Foreigners grouped by nationality and age rouped by ationality and age ageTotal 7,2341. Nordic and EU-countries total 2,060Nordic countries total 1,134EU-countries total 1,1592. Other parts of Europe15543. Africa total13584. North America total 1765. South and Central America1346. Oceania total 377. Asia total17758. Stateless + not informed 140y nationality and age

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We work from day one in groups with problem-oriented projects.

Most important benefits are:

• Team work• Project management• Broad engineering projects• Communication (written, presentation, negotiation)• Theory• Experiments

How to study at Aalborg University

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Basic Structure

10

9

8

7

6

5

4

3

2

1

Master Specialisation

Master Programme

Fundamental

Education

Basic Year

B.Sc.Thesis Intro semester

The study each semester is based on a combination of courses and team based problem-oriented project work

Education

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Power electronics and drives curriculum organization at Aalborg University

1.

2.

6.

7.

3.

4.

5.

8.

9.

10.

Electrical and Electronic

Engineering

Basic year

Electrical Energy Engineering

Power Electronicsand Drives

Introductory

SEMESTER

B.Sc. in Electrical Energy Technology

M.Sc. in PowerElectronics and Drives

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Project themes during a complete studyin power electronics and drives

Design Oriented Analysis ofElectrical Machines andPower Electronic Systems

M.Sc. Project

Dynamics in electricalMachines and Power Systems

Dynamics

Control in PowerElectronic Systems

Control Electroni Systems

Design of ElectronicSystemsSystems

DesignSystem Design

Micro computersMicro-

Analogue andDigital Electronics

Analogue

Models RealityModels Reality

Reality and ModelsReality and Models

Power Control inElectrical Systems

B.Sc. Project

1. semester

2. semester

3. semester

4. semester

5. semester

6. semester

7. semester

8. semester

9. semester

10. semester

Power

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Literature Lectures

Experiments/prototyping

FieldworkTutorials

Problemanalysis

Problemsolving Report

Groupstudiess

Implementation of problem-oriented andproject-organised education

One semester

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Typical distribution between courses and projectwork during one semester (30 ETCS)

INTRODUCTIONsolvingAnalysis Report

100%

75%

50%

25%

0%5 weeks 10 15 weeks

1. period 2. period 3. period 4. period

Start End

COURSES

Problem

EVALUATION(project/courses)

100%

75%

50%

25%

0%5 10 weeks

1. 2. 3. 4.

Start

1 day

20 weeks

• 50% project work

• 25% project-oriented courses

• 25% basic courses

• Full week time table

Starting time: September 1 and February 1

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Overview

BASIC YEAR1. and 2. sem

3. to 5. semElectronics and Electrical

Engineering

Electrical Energy Technology (EET) 6. to 7. sem

8. to 10. sem

High Voltage Engineering and Power systems

Power Electronics and Drives

Sustainable Energy Engineering

Fluids and Combustion Engineering

Industry and export

Intro sem.

B.Sc w. Honor

ElectroMechanical System Design

Education

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Power Electronics and Drives (PED)

Presentation of the PED program

International Master in

Power Electronics and Drives

(8-10 semester)

grid

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Electrical Energy System

POWER STATION

SOLAR CELLS

WIND TURBINE

MOTOR

PUMP

ROBOTICS

REFRIGERATOR

TELEVISION

LIGHT

TRANSFORMER

TRANSFORMER

INDUSTRY

=

POWER SUPPLY

ac dc

TRANSFORMER

COMPEN-SATOR

FACTS

FUELCELLS

FUEL

COMMUNICATION

COMBUSTIONENGINE

SOLARENERGY

TRANSPORT

3 3 3 1-3

3

DCAC

~

Energy System

POWER STATION

SOLAR CELLS

WIND TURBINE

MOTOR

PUMP

ROBOTICS

REFRIGERATOR

TELEVISION

LIGHT

TRANSFORMER

TRANSFORMER

INDUSTRY

=

POWER SUPPLY

ac dc

TRANSFORMER

COMPEN-SATOR

FACTS

FUELCELLS

FUEL

COMMUNICATION

COMBUSTIONENGINE

SOLARENERGY

TRANSPORT

3 3 3 1-3

3

DCAC

~

DCAC

DCAC

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Aims to educate candidates of a high standard in an innovative and challenging environment.

Provides an education related to the development of any kind of power electronic equipment, electrical drives and motion control.

Close links to industrial applications in the project work.

What is the PED programme ?

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Power Electronics and Drives (PED)Core Disciplinary

•Power Electronics

•Electrical Machines

•Drive Systems

•Power Systems

•Control Theory

•Electronics

-controller/DSP

•Prototyping and Tests

Themes

6. Sem: Electric Machines and Power Systems

7. Sem: Design of Power Electronics and Drives

8. Sem: Control in Power Electronics and Drives

9. Sem: Design-oriented Analysis of Electric

Machines and Power Electronic Systems

10. Sem: Master Thesis

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Key areas:

PED 8: Control in Power Electronics and Drives

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Power Electronics and Drives (PED)Courses at the PED 8th semester

• Brushless Machines• High Voltage Techniques• Modelling of power converters• Control of Brushless Machines• Control of AC Machines

Joint

• Engineering Responsivility• Optimal Control (Only danish students )• Self-tuning Regulators• Analog and digital control theory

(International students)• Power Converters AC/DC DC/AC

(International students)

Line

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PED 8 semester projects

Motor control performance with DSP

Cost-effective boost converter for digital power factor control

Current control of inverter-fed motor with LC-filter

Sensorless control of PMSM based on flux-linkage estimation (PED)

Single-phase ASD with sinusoidal input current and bi-directional power flow capability without a boost inductance for low-power applications

Look at the 25 proposals from 2003:

http://www.iet.auc.dk/education/ped8_eah8/03PROJEKTKATALOG.pdf

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Key areas:

PED 9. Sem: Design-oriented Analysis of Electric Machines

and

Power Electronic Systems

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Courses at the PED 9th semester

• Resonant converters• Switch mode power supplies• Power semiconductor devices• Power semiconductor devices and their models• Advanced control of PWM inverted-fed induction

machines• Computer aided engineering in power electronics and

drives• Finite element analysis in electromagnetisme• Local compensation and FACTS• Design of electric equipment• English (Guest students only)

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The use of PCB transformers in both the gate drive circuit and the converter were a success

The SMPS should be able of operating at an input voltage of 276-375[VDC], and at a switching frequency above 1.5[MHz] using a PCB transformer.

Analysis and design of 50W SMPS for AM radio (PED 9+10)

The SMPSoperates at 300[VDC] and at 1.75[MHz], with an overall efficiency of 70%.

The parasitic capacitances of the transformers caused the transformer voltages to contain considerable resonance, which will need extra attention.

Industry: B&O

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Design of a Low Cost, Modular Frequency Converter for Three Motors (PED 9+10)

The project deals with a cost effective design of a modular frequency converter.

The purpose is to control up to three independent motors, sharing a common DC-link and one micro-controller.

The design is constructed and verified with subsystem models of the whole system built in Matlab/Simulink.

A prototype of the modular frequency converter is also built and the design verified in the laboratory.

Industry: Marel

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20u

880u

Gatedriver(SKHI71)

FPGA 80c167

g1 g1 g2 g2

ZVS

Lr

Cdc1

Cdc2

PC

Cdc1

IB

IC

IA

0 5 10 15 20 25 30 35 40-30

-20

-10

0

10

20

30

Tid [ms]

Strø

m [A

]

Ia

Ib

Ic

0 5 10 15 20 25 30 35 40-30

-20

-10

0

10

20

30

Strø

m [A

]

Tid [ms]

ia

ib

ic

Resultater af simuleringer og målinger mellemkredsstrømme

Design of Resonant Tank for Three-level Resonant Inverter(PED 9+10)

Industry: APC Denmark A/S

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The basic idea

Pratical work - Stator

N

S

S

N

Stator

Rotor

Knives

Permanentmagnets

Cutter units

Diesel engine

Hydraulicmotor

Design of a Brushless DC Motor Drive System(PED9+10)

Industry: Sauer Danfoss A/S

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Collaboration Partners - Industry

Danfoss Drives A/S

Danfoss A/S

Grundfos A/S

Axel Åkerman A/S

Elfor

Nesa A/S

Vestas Wind Systems A/S

Logimatic A/S

Mita-Teknik a/s

Cooper Bussmann

DEFU

B&O

APC

ABB Motors

Migatronic

Thrige Electric

Electrolux

Sauer Danfoss

Eltra

Nordex

Bonus Energy

PowerLynx

E2

Documents

Proejct Oriented Teaching in Power Electronics and Drives by Professor Frede Blaabjerg