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Noise Induced Loss of Tracking in Systems With Saturating Actuators and Antiwindup

Title
Noise Induced Loss of Tracking in Systems With Saturating Actuators and Antiwindup
Authors
Eun, YongsoonHamby, Eric S.
DGIST Authors
Eun, Yongsoon
Issue Date
2014-09
Citation
Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME, 136(5)
Type
Article
Article Type
Article
Keywords
EngineeringFeedback SystemsMathematical ModelsMeasurement NoiseProportional-Integral ControlSaturating ActuatorStandard ErrorsSteady State ErrorsStochastic AveragingStochastic SystemsTechnical Notes
ISSN
0022-0434
Abstract
This technical note is devoted to a recently discovered phenomenon that takes place in feedback systems with saturating actuators, proportional-integral (PI) control, and antiwindup. Namely, in such systems, measurement noise induces steady-state error in step tracking, which is incompatible with the standard error coefficients. We quantify this phenomenon using stochastic averaging theory and show that the noise induced loss of tracking occurs only if antiwindup is present. An indicator that predicts this phenomenon is derived, and a rule-of-thumb, based on this indicator, is formulated. An illustration using a digital printing device is provided. © 2014 by ASME.
URI
http://hdl.handle.net/20.500.11750/5246
DOI
10.1115/1.4027163
Publisher
ASME
Related Researcher
  • Author Eun, Yong Soon DSC Lab(Dynamic Systems and Control Laboratory)
  • Research Interests Resilient control systems; Control systems with nonlinear sensors and actuators; Quasi-linear control systems; Intelligent transportation systems; Networked control systems
Files:
There are no files associated with this item.
Collection:
Information and Communication EngineeringDSC Lab(Dynamic Systems and Control Laboratory)1. Journal Articles


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