Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/134456
Title: VRFT-BASED CONTROLLERS DESIGN FOR NON-MINIMUM PHASE PLANTS
Authors: HUANG WEN
Keywords: PID controller, Inverse response, Virtual reference feedback tuning, Reference model, Non-minimum phase predictor, Internal Model Control
Issue Date: 19-Aug-2015
Source: HUANG WEN (2015-08-19). VRFT-BASED CONTROLLERS DESIGN FOR NON-MINIMUM PHASE PLANTS. ScholarBank@NUS Repository.
Abstract: THE MODEL-BASED CONTROLLER DESIGN METHODS ARE COMMONLY USED TO DESIGN PID CONTROLLERS, WHICH ARE WIDELY USED IN REFINING, CHEMICAL, AND PHARMACEUTICAL INDUSTRIES. THESE CONTROLLER DESIGN METHODS CAN BE BROADLY CLASSIFIED INTO TWO CATEGORIES DEPENDING ON WHETHER THE PID TUNING ALGORITHM HAS A TUNABLE PARAMETER OR NOT. FOR THE DIRECT MODEL-BASED PID DESIGN METHODS WITHOUT RESORTING TO A TUNABLE PARAMETER, THE RESULTING CONTROL PERFORMANCE IS USUALLY NOT SATISFACTORY FOR HIGHER-ORDER PROCESS DYNAMICS OWING TO THE INEVITABLE MODELING ERROR. ON THE OTHER END, WHILE BETTER CONTROL PERFORMANCE CAN BE ACHIEVED WHEN A TUNABLE PARAMETER IS INCLUDED TO DESIGN PID CONTROLLERS, THE OPTIMAL TUNABLE PARAMETER IS NORMALLY DETERMINED BY TRIAL AND ERROR PROCEDURE FROM EITHER THE PLANT TESTS OR SIMULATION STUDIES ASSUMING THE AVAILABILITY OF A PRECISELY KNOWN PROCESS MODEL, RESULTING IN AN ITERATIVE TUNING PROCEDURE AND THE EXPENSE OF CONSIDERABLE ENGINEERING EFFORTS. SIMILAR TO THE MODEL-BASED PID DESIG
URI: http://scholarbank.nus.edu.sg/handle/10635/134456
Appears in Collections:Ph.D Theses (Open)

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