A Multivariable Newton-Based Extremum Seeking Control for Condenser Water Loop Optimization of Chilled-Water Plant-Reference-Cited by-同舟云学术

A Multivariable Newton-Based Extremum Seeking Control for Condenser Water Loop Optimization of Chilled-Water Plant

Published:2015-08-20 Issue:11 Volume:137 Page:
ISSN:0022-0434
Container-title:Journal of Dynamic Systems, Measurement, and Control
language:en
Short-container-title:

Author:

Mu Baojie¹,Li Yaoyu²,Seem John E.³,Hu Bin⁴

Affiliation:

1. Department of Electrical Engineering, The University of Texas at Dallas, Richardson, TX 75080 e-mail:

2. Associate Professor Mem. ASME Department of Mechanical Engineering, The University of Texas at Dallas, Richardson, TX 75080 e-mail:

3. High Altitude Trading, Inc., Jackson, WY 83001 e-mail:

4. Department of Compressor Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China e-mail:

Abstract

This paper presents a multivariable Newton-based extremum seeking control (ESC) scheme for efficient operation of a chilled-water plant. A modelica-based dynamic simulation model of the chilled-water plant consists of one screw chiller and one counter-flow cooling tower was adopted for evaluation of proposed two-input Newton-based ESC controller. The ESC controller takes the total power of the chiller compressor, the cooling-tower fan, and the condenser water (CW) pump as feedback signal and discovers the optimum outputs of cooling-tower fan speed and the condenser-loop water flow rate to maximize the power efficiency in real time with the cooling load being satisfied. Remarkable energy saving is observed for several testing conditions.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/dynamicsystems/article-pdf/doi/10.1115/1.4031051/6120311/ds_137_11_111011.pdf

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