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Development of supervisory control strategy for online control of central cooling water systems

Conference Paper


Abstract


  • This paper presents a model-based supervisory

    control strategy for online control of building central

    cooling water systems to enhance their energy

    efficiency. Simplified chiller and cooling tower

    models are developed and used to predict the system

    energy performance, environment quality as well as

    the system response to the changes of control settings.

    A novel and simple optimization technique, named as

    PMES method, is developed and used to seek the

    optimal control settings under the given working

    conditions. The performance of both simplified

    models is validated using the field measurement data

    and/or the factory performance test data while the

    performance of this model-based supervisory control

    strategy is evaluated by comparing with that of near

    optimal control strategies and other conventional

    control strategies for cooling water systems through

    simulations. The implementation issues of the

    supervisory control strategy for practical applications

    are also presented.

UOW Authors


  •   Wang, Shengwei (external author)
  •   Ma, Zhenjun
  •   Xu, Xinhua (external author)

Publication Date


  • 2007

Citation


  • Wang, S., Ma, Z. & Xu, X. (2007). Development of supervisory control strategy for online control of central cooling water systems. 10th Conference of the International Building Performance Simulation Association (pp. 1-8).

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/980

Start Page


  • 1

End Page


  • 8

Abstract


  • This paper presents a model-based supervisory

    control strategy for online control of building central

    cooling water systems to enhance their energy

    efficiency. Simplified chiller and cooling tower

    models are developed and used to predict the system

    energy performance, environment quality as well as

    the system response to the changes of control settings.

    A novel and simple optimization technique, named as

    PMES method, is developed and used to seek the

    optimal control settings under the given working

    conditions. The performance of both simplified

    models is validated using the field measurement data

    and/or the factory performance test data while the

    performance of this model-based supervisory control

    strategy is evaluated by comparing with that of near

    optimal control strategies and other conventional

    control strategies for cooling water systems through

    simulations. The implementation issues of the

    supervisory control strategy for practical applications

    are also presented.

UOW Authors


  •   Wang, Shengwei (external author)
  •   Ma, Zhenjun
  •   Xu, Xinhua (external author)

Publication Date


  • 2007

Citation


  • Wang, S., Ma, Z. & Xu, X. (2007). Development of supervisory control strategy for online control of central cooling water systems. 10th Conference of the International Building Performance Simulation Association (pp. 1-8).

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/980

Start Page


  • 1

End Page


  • 8