Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15086
Title: Optimal control of variable-speed pumps of seawater-cooled chilling systems using BEMS
Authors: Wang, S 
Keywords: Building energy management system
Chiller plant
Energy saving
Optimal control
Seawater cooling
Variable-speed pump
Issue Date: 1999
Publisher: Hong Kong Institution of Engineers
Source: HKIE transactions, 1999, v. 6, no. 1, p. 29-35 How to cite?
Journal: HKIE transactions 
Abstract: An optimal control strategies for BEMS are developed to optimize the seawater pressure set-point of variable-speed seawater pumps, which include an adaptive approach and a derivative approach. Optimization is achieved by adjusting the pressure set-point according to the estimated derivative of the total power with respect to seawater pressure. The adaptive approach identifies the system parameters essential for the control strategies. Simulation tests show that significant saving in the overall energy consumption of the chilling system can be achieved by properly resetting the pressure set-point only. The optimal control strategy and the evaluation of the control strategy are presented.
URI: http://hdl.handle.net/10397/15086
ISSN: 1023-697X
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