Wind Energy at Aalborg University Reliability and Operation & - - PowerPoint PPT Presentation

▶
wind energy at aalborg university reliability and
SMART_READER_LITE
LIVE PREVIEW

Wind Energy at Aalborg University Reliability and Operation & - - PowerPoint PPT Presentation

Feb 16, 2024 384 likes •697 views

The Faculty of Engineering and Science - Aalborg University - Denmark Wind Energy at Aalborg University Reliability and Operation & Maintenance of wind turbines John Dalsgaard S rensen g Professor Department of Civil Engineering,

slide-1
SLIDE 1

The Faculty of Engineering and Science - Aalborg University - Denmark

Wind Energy at Aalborg University Reliability and Operation & Maintenance of wind turbines

John Dalsgaard Sørensen g Professor Department of Civil Engineering, Aalborg University jds@civil aau dk jds@civil.aau.dk

1

slide-2
SLIDE 2

The Faculty of Engineering and Science - Aalborg University - Denmark

2

slide-3
SLIDE 3

The Faculty of Engineering and Science - Aalborg University - Denmark

Wind Energy - Aalborg University

Departments at Aalborg University (AAU) – wind energy: 1 Department of Energy Technology 1. Department of Energy Technology 2. Department of Development and Planning 3 Institute of Electronic Systems 3. Institute of Electronic Systems

  • Section for Automation & Control

4 Department of Mechanical and Manufacturing Engineering 4. Department of Mechanical and Manufacturing Engineering 5. Department of Civil Engineering

3

slide-4
SLIDE 4

The Faculty of Engineering and Science - Aalborg University - Denmark

Wind Energy - Aalborg University

Research areas:

  • Energy planning
  • Power electronics and power systems
  • Control
  • Blade design – composite materials

Blade design composite materials

  • Production & logistics
  • Structural dynamics

F d ti

  • Foundation
  • Load and safety

Offshore wind turbine at Aalborg Østhavn

4

Offshore wind turbines in Frederikshavn

slide-5
SLIDE 5

The Faculty of Engineering and Science - Aalborg University - Denmark

Teaching

MSc programs in wind energy:

  • Energy planning and sustainable energy

Energy planning and sustainable energy

  • Mechanical, structural and civil engineering
  • Wind Power Systems (electrical aspects)

Wind Power Systems (electrical aspects) PhD education

  • Approx. 75 PhD students

5

slide-6
SLIDE 6

The Faculty of Engineering and Science - Aalborg University - Denmark

Department of Development and Planning

Sustainable Energy Planning Group - Wind energy activities:

  • Inter-disciplinary work on energy planning
  • Technical energy systems analyses and GIS analyses of energy

systems

  • Business-economic and socio-economic analyses of energy

systems i i l l

  • Institutional analyses
  • Primary focus is on the production of energy
  • Professor Henrik Lund: lund@plan.aau.dk
  • Assoc Professor Poul A Østergaard: poul@plan aau dk

6

  • Assoc. Professor Poul A Østergaard: poul@plan.aau.dk
slide-7
SLIDE 7

The Faculty of Engineering and Science - Aalborg University - Denmark

Department of Energy Technology Department of Energy Technology

Research Focus on Wind Turbine Systems:

Control System

Rotor Gearbox Generator Pow er electronics Transform er Grid Mechanical Electrical W ind

7

Mechanical Energy Electrical Energy Grid Requirem ents! W ind Energy

slide-8
SLIDE 8

The Faculty of Engineering and Science - Aalborg University - Denmark

I tit t f El t i S t Institute of Electronic Systems

Wind power control

10+years of collaboration with industry partners One of the larger control groups in Europe

1 0 F A C U L T Y 2 4 P H D / P O S T D O C

One of the larger control groups in Europe Key topics (current wind projects): M d l di ti t l

  • Model predictive control
  • Fault detection and fault tolerant control
  • Wind farm control

Wind farm control

  • Floating wind turbines
  • Concurrent Aero-Servo-Elastic Design
  • Professor Thomas Bak: tba@es.aau.dk

8

  • Professor Jacob Stoustrup: jacob@es.aau.dk
  • Professor Rafal Wisniewski: raf@es.aau.dk
slide-9
SLIDE 9

The Faculty of Engineering and Science - Aalborg University - Denmark

9

slide-10
SLIDE 10

The Faculty of Engineering and Science - Aalborg University - Denmark

10

slide-11
SLIDE 11

The Faculty of Engineering and Science - Aalborg University - Denmark

11

slide-12
SLIDE 12

The Faculty of Engineering and Science - Aalborg University - Denmark

12

slide-13
SLIDE 13

The Faculty of Engineering and Science - Aalborg University - Denmark

D t t f M h i l d M f t i Department of Mechanical and Manufacturing Engineering g g

Wind energy activities:

  • Logistics, production and design for manufacturing of

wind turbines

Professor Hans-Henrik Hvolby: hhh@m-tech.aau.dk

  • Characterization modeling/analysis design and
  • Characterization, modeling/analysis, design and
  • ptimization of advanced composite materials and

sandwich structures for wind turbine blades

Professor Erik Lund: el@m-tech.aau.dk

13

slide-14
SLIDE 14

The Faculty of Engineering and Science - Aalborg University - Denmark

14

slide-15
SLIDE 15

The Faculty of Engineering and Science - Aalborg University - Denmark

15

slide-16
SLIDE 16

The Faculty of Engineering and Science - Aalborg University - Denmark

16

slide-17
SLIDE 17

The Faculty of Engineering and Science - Aalborg University - Denmark

17

slide-18
SLIDE 18

The Faculty of Engineering and Science - Aalborg University - Denmark

Department of Civil Engineering

Wind energy activities:

  • Foundation – Geotechnics
  • Rotordynamics

W d t l d

  • Wave and current loads – scour
  • Loads and safety – risk analysis

18

slide-19
SLIDE 19

The Faculty of Engineering and Science - Aalborg University - Denmark

Foundation and Geotechnics

  • Mono-pile foundation for offshore wind turbines
  • Bucket foundation for offshore wind-turbines
  • Soil

Structure interaction of foundations for wind turbines

  • Soil - Structure interaction of foundations for wind turbines

19

  • Professor Lars Bo Ibsen: lbi@civil.aau.dk
  • Assoc. professor Lars Andersen: la@civil.aau.dk
slide-20
SLIDE 20

The Faculty of Engineering and Science - Aalborg University - Denmark

Test site for offshore wind turbine research in Frederikshavn

20

slide-21
SLIDE 21

The Faculty of Engineering and Science - Aalborg University - Denmark

2 1

U i l f d ti l ti Universal foundation solutions Hard Soft Soil

21

slide-22
SLIDE 22

The Faculty of Engineering and Science - Aalborg University - Denmark

Reliability and Risk analysis

  • Reliability of wind turbine components and systems
  • Risk-based planning of operation & maintenance for

ff h i d bi

  • ffshore wind turbines

22

  • Professor John Dalsgaard Sørensen: jds@civil.aau.dk
slide-23
SLIDE 23

The Faculty of Engineering and Science - Aalborg University - Denmark

Reliability and Risk analysis

Goal: minimize the total expected life-cycle costs → minimize COE (Cost Of Energy) ( gy) Initial costs: dependent on reliability level Initial costs: dependent on reliability level O&M costs: dependent on O&M strategy, availability and reliability y y Failure costs: dependent on reliability

23

slide-24
SLIDE 24

The Faculty of Engineering and Science - Aalborg University - Denmark

Load & Safety Risk analysis Load & Safety – Risk analysis

Failure Rates and Downtimes (examples)

24

Source: ISET: 2006

slide-25
SLIDE 25

The Faculty of Engineering and Science - Aalborg University - Denmark

Reliability modeling of wind turbines

Ob d f il

Mechanical / electrical

Observed failure rates Classical reliability theory

components

Probabilistic models for failure events Structural Reliability Theory

Structural components

25

slide-26
SLIDE 26

The Faculty of Engineering and Science - Aalborg University - Denmark

Reliability modeling of wind turbines

Blades Gearbox, … , Power electronics:

26

slide-27
SLIDE 27

The Faculty of Engineering and Science - Aalborg University - Denmark

Reliability modeling of wind turbines

Tower & Substructures: Foundation:

27

slide-28
SLIDE 28

The Faculty of Engineering and Science - Aalborg University - Denmark

Operation & Maintenance Operation & Maintenance

  • High costs for operation and maintenance for offshore wind farms

Hi h f il ? – High failure rates? – Access difficult: boat, helicopter, … – Limited weather windows Limited weather windows – Loss of production – Mobilization

  • Deterioration processes are always present and associated with

High uncertainty → Maintenance could optimally be planned by using risk-based methods

28

slide-29
SLIDE 29

The Faculty of Engineering and Science - Aalborg University - Denmark

Operation & Maintenance Operation & Maintenance

Theoretical basis for risk-based planning: Bayesian decision theory Implementation: Bayesian Networks

29

slide-30
SLIDE 30

The Faculty of Engineering and Science - Aalborg University - Denmark

Thank you for your attention!

John Dalsgaard Sørensen Department of Civil Engineering, Aalborg University jds@civil.aau.dk

30