VÄRLDENS SKILLNAD. Ola Carlson. Chalmers University of Technology Department of Energy and Environment Division of Electric Power Engineering

Transcription

1 VÄRLDENS SKILLNAD Ola Carlson Chalmers University of Technology Department of Energy and Environment Division of Electric Power Engineering

2 Wind Power at Chalmers Generators, soft-starters, 1 generation of variable speed systems, test at Chalmers wind turbine, 40 kw s pitch-controlled Design of permanent magnet generator, power electronic converters, design and control x Wind turbine/farm modeling for power system, fault-response x Wind turbine supporting grid voltage, increased stability and frequency control x Design of collection grid in wind farms, AC or DC and HVDCconnections to the transmission grid 2010 Wind Power Technology Centre

3 Chalmers wind turbine Variable speed Constant speed

4 Surge arrester protection 6 Analysis of Transients in Wind Park (PhD defence December 2011) U TX1 (pu) BIL-DT BIL-OI NEMA IEC IEEE U AB U BC U CA Switch at LV transformer side initiates energizing transient t rise (µ s) 6 U TX1 (pu) BIL-DT BIL-OI NEMA IEC IEEE U AB U BC 1 U CA t rise (µ s) Surge arrester and RC protection reduces transient overvoltages General Electric 1.5 MW Kalmar sund

5 Goals of Build up component and system know-how related to complete wind power turbines in order to bring about the following: Well-renowned Swedish development and production of complete wind turbines in Sweden Well-renowned Swedish development and production of sub-systems: mechanical driveline gearbox axis yaw and pitch mechanisms turbine blades tower generator transformers High-quality training of engineers with expertise in wind power

6 Theme groups Ola Carlson Lars Davidsson Viktor Berbyuk Thomas Abrahamsson Lina Bertling Tjernberg Good cooperation between 4 departments and five divisions at Chalmers Luleå University of Technology on the way to cooperation

7 Partners

8 Ongoing projects within SWPTC TG1-6 LIDAR TG1-1- model predictive control TG5-2 Current induced damages in bearings TG1-2 Electrical drives TG2-1 Aerodynamic loads TG4-2 Blade development TG3-1 Drive Train Dynamics TG1-5 Measuring of a Wind Turbine TG3-2 Optimal drivline TG1-4 Grid code testing by VSC-HVDC TG4-1 Structural Dynamics Models TG5-1 Load- and risk-based maintenance

9 Measurements from GE 4.1/113 Measurements and design information to validate Chalmers models of wind turbines

10 Evaluation of LIDAR as forward looking wind sensor for wind turbines LIDAR (Light detection and ranging) Real time monitoring of up-wind speed and direction that will hit the wind turbine in seconds time will provide new possibilities for: increased efficiency reduced wear and tear more cost efficient turbine design

11 Grid Code Testing General Electric design and install, Göteborg Energi operate: Chalmers cooperation: Validation of models for mechanical and electrical systems Develop and carry out Grid code tests of the wind turbine 4.1 MW General Electric 8 MW HVDC-light converter

12 Offshore Wind Electric system Project 1 High voltage generator G dc/dc converters Multi terminal HVDC Project 2 Components, system, modeling Theory studies, simulations, Measurements in laboratory and in field operation Project 3 3 PhD & 2 researchers + Nordic (5 persons)

13 Personnel working with wind power at Chalmers At university: 14 senior researcher - professors 13 PhD students 2 technicians At industry in parallel research and development projects: 25 experienced technical experts Totally: 54 persons working at university and in industry

14 Test station in Cold Climate Pre-study is carried out planning for test station is ongoing Market increases Energy losses due to ice is not acceptable Some wind turbine manufactures interested Organization is under development Cooperation is important

15 Futurer and on going research HVDC-transmission, multi terminal, protection and fault DC connection grid within a wind farm demonstration missing in Sweden Grid Code testing by Voltage Source Converter will be tested later this year Wind turbine development, MW Optimal mechanical design Load reduction by control and twisting blades Lighter blades by carbon fibre and autoclave production methods Reliability methods for electrical components, less temperature cycling Diagnostic methods for generator, converter, bearing, mechanical components Cold climate development and test, icing and low temperature components

16 VÄRLDENS SKILLNAD