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On fuzzy control of water desalination plants

Abstract

In this report we have chosen a sub-system of an MSF water desalination plant, the brine heater, for analysis, synthesis, and simulation. This system has been modelled and implemented on computer. A fuzzy logic controller (FLC) for the top brine temperature control loop has been designed and implemented on the computer. The performance of the proposed FLC is compared with three other conventional control strategies: PID, cascade and disturbance rejection control. One major concern on FLC`s has been the lack of stability criteria. An up to-date survey of stability of fuzzy control systems is given. We have shown stability of the proposed FLC using the Sinusoidal Input Describing Functions (SIDF) method. The potential applications of fuzzy controllers for complex and large-scale systems through hierarchy of rule sets and hybridization with conventional approaches are also investigated. (authors)
Authors:
Titli, A; [1]  Jamshidi, M; [2]  Olafsson, F [3] 
  1. Centre National de la Recherche Scientifique (CNRS), 31 - Toulouse (France)
  2. New Mexico Univ., Albuquerque, NM (United States)
  3. Institute of Technology, Norway (Norway)
Publication Date:
Dec 31, 1995
Product Type:
Technical Report
Report Number:
CNRS-LAAS-95197
Reference Number:
SCA: 320603; 320303; PA: FRC-97:001822; EDB-97:107075; NTS-98:002615; SN: 97001792514
Resource Relation:
Other Information: PBD: 1995
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DESALINATION PLANTS; CONTROL SYSTEMS; PROCESS CONTROL; FUZZY LOGIC; WATER TREATMENT; DRINKING WATER; BRINES; COMPUTERIZED SIMULATION; TEMPERATURE CONTROL; CLOSED-LOOP CONTROL; COMPARATIVE EVALUATIONS; INTERNATIONAL COOPERATION; INTERNATIONAL ORGANIZATIONS; FEASIBILITY STUDIES; EVAPORATION; SEAWATER
OSTI ID:
508799
Research Organizations:
Centre National de la Recherche Scientifique (CNRS), 31 - Toulouse (France)
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE97749173; TRN: FR9701822
Availability:
OSTI as DE97749173
Submitting Site:
FR
Size:
76 p.
Announcement Date:

Citation Formats

Titli, A, Jamshidi, M, and Olafsson, F. On fuzzy control of water desalination plants. France: N. p., 1995. Web.
Titli, A, Jamshidi, M, & Olafsson, F. On fuzzy control of water desalination plants. France.
Titli, A, Jamshidi, M, and Olafsson, F. 1995. "On fuzzy control of water desalination plants." France.
@misc{etde_508799,
title = {On fuzzy control of water desalination plants}
author = {Titli, A, Jamshidi, M, and Olafsson, F}
abstractNote = {In this report we have chosen a sub-system of an MSF water desalination plant, the brine heater, for analysis, synthesis, and simulation. This system has been modelled and implemented on computer. A fuzzy logic controller (FLC) for the top brine temperature control loop has been designed and implemented on the computer. The performance of the proposed FLC is compared with three other conventional control strategies: PID, cascade and disturbance rejection control. One major concern on FLC`s has been the lack of stability criteria. An up to-date survey of stability of fuzzy control systems is given. We have shown stability of the proposed FLC using the Sinusoidal Input Describing Functions (SIDF) method. The potential applications of fuzzy controllers for complex and large-scale systems through hierarchy of rule sets and hybridization with conventional approaches are also investigated. (authors)}
place = {France}
year = {1995}
month = {Dec}
}