Simultaneous structural and control system design for horizontal axis wind turbines

Anand P. Deshmukh, James T. Allison

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Wind energy is proving to be a promising energy source to complement conventional en- ergy systems in meeting global energy demands, and is currently one of the fastest growing renewable energy sources. Modern wind turbines are large, flexible structures operating in uncertain environments. Power capture and economic value increase with turbine size, leading to steadily increased turbine size over the last three decades. Along with larger size comes intensified structural loads, presenting challenges in mechanical system design. One of these challenges is the dynamic deflection of structural components. These passive system dynamics interact with the active control of wind turbine energy generation. Be- cause of this interaction, addressing the physical and control system design of these devices in a comprehensive manner is vital to ensuring maximum energy extraction, system reli- ability, and other critical metrics. A large portion of existing work has aimed to increase energy production through optimal control system design (through some combination of rotor speed and pitch control). This strategy treats physical system design as a fixed en- tity, overlooking potential gains. Further performance increases can be realized through a broader systems approach where physical and control system design are tackled simultane- ously. This approach, known as co-design, can capitalize on the synergy that exists between passive system dynamics and active control to increase performance further. In this article a new method for wind turbine design is presented that produces system-optimal results by accounting for the coupling between plant system and control system design. A case study is presented that demonstrates significant performance improvements over conventional sequential design approaches.

Original languageEnglish (US)
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
StatePublished - Aug 15 2013
Event54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Boston, MA, United States
Duration: Apr 8 2013Apr 11 2013

Publication series

NameCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
ISSN (Print)0273-4508

Other

Other54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
CountryUnited States
CityBoston, MA
Period4/8/134/11/13

ASJC Scopus subject areas

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Deshmukh, A. P., & Allison, J. T. (2013). Simultaneous structural and control system design for horizontal axis wind turbines. In 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference [AIAA 2013-1533] (Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference).