控制系統之性能評估與線上監控(3/3)
Date Issued
2005-12-12
Date
2005-12-12
Author(s)
黃孝平
DOI
932214E002008
Abstract
A systematic procedure for performance assessment and PI/PID controller design based on
modified relay feedback test is proposed. The gain and phase margins of a control system are
used to assess its performance. The proposed method estimates the gain and phase margins
on-line by a modified relay feedback scheme, where a delay element is embedded between the
relay and controller. The estimated results are used to access the goodness of the controller
parameters. When the retuning of controller is found necessary, a similar procedure can be
applied to tune the PI/PID controller based on specifications of gain and phase margins. Thus,
performance assessment and controller improvement can be done simultaneously, which ensures
the system to have good performance in control.
Subjects
performance assessment
controller design
gain margin
phase margin
relay
feedback
feedback
multi-loop control
Publisher
臺北市：國立臺灣大學化學工程學系暨研究所
Type
report
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