Conference Day Two: Tuesday, 22 May 2012

08:30 Registration & coffee

08:55 Chairman’s welcome

Dr. Bogi Bech Jensen
Associate Professor, Department of Electrical Engineering
Technical University of Denmark, Denmark

Generator systems for wind turbines and for future applications

09:00Utility presentation: How reliable is your generator? Lessons learned from generator operation in onshore and offshore wind farms

  • A number of different configurations of generator are used in WTGs. Are some more reliable than others?
  • Experience of generator operation in both onshore and offshore WTGs
  • Lessons learned from failures applied to the future engineering of WTG generators

Duncan Locke
WTG Engineer
RWE Npower Renewables Limited, UK

09:40 The Geared vs. Gearless Drive Train Debate: Delivering Lighter Wind Turbines That Reduce The Cost Of Energy & Increase Reliability

  • Costs and reliability
    • getting the balance right between increased costs and increased reliability- how do the different concepts compare?
    • assessing the reality of failure rates and effect on cost of energy
    • weight and mass challenges
    • maintenance costs
  • Gearboxes
    • have gearboxes matured? How much further is there to go?
    • will gearboxes with fewer stages answer reliability issues?
  • Direct drive
    • how does the complexity of the technology impact on reliability and maintainability?
  • Where are drive train technologies heading?
    • hybrid systems
    • hydraulic systems

Dr.-Ing. Martin Knops
Senior Vice President, Product Development
REpower Systems

10:25 Refreshment break and networking

10:55Scientific presentation: Wind turbine drive trains with synchronous generators and performance improvement via the model-based control

  • Topologies of synchronous generator-based drive trains
  • Comparisons of these drive trains
  • Problems with the classic control strategy
  • Performance improvement with the model-based control

Dr.-Ing. Liang Chen
Project Engineer
Fraunhofer Institut für Windenergie und Energiesystemtechnik IWES, Germany

11:35 Combing the advantages of a direct drive and geared generator system into a HybridDrive system

  • Development of drive trains
  • Overview of different drive train concepts
  • Design criteria for drive train: efficiency, weight, volume, cost of energy
  • Explanation of HybridDrive system (integrated generator / gearbox system)
  • Comparison of drive train concepts
  • First measuring from test bay

Matthias Deicke
Head of Electrical Systems
Winergy AG, Germany

12:15 Networking luncheon

13:45 Lowering the cost of energy with permanent magnet drive generators

  • Levelized cost of energy
  • Increasing annual energy production
  • Lowering total lifecycle cost
  • Shortening time to market
  • The importance of value-added partnering

Jussi Vanhanen
Sales and Marketing Director
The Switch, Finland

14:25 Refreshment break and networking

14:55Scientific presentation: Advantages and challenges of superconducting wind turbine generators

  • Background of superconductivity and its relevance for wind turbine generators
  • Superconducting generator concepts
  • Advantages of superconducting generators for wind turbines
  • Challenges of superconducting generators for wind turbines

Dr. Bogi Bech Jensen
Associate Professor, Department of Electrical Engineering
Technical University of Denmark, Denmark

15:35 Closing remarks of the chairman and end of conference day two