Relay feedback methods for noisy processes

Relay feedback methods for noisy processes

If there is noise in the original relay feedback system, because of chattering, it is not easy to obtain accurate ultimate information. To prevent chattering of the original relay output, hysteresis relay feedback method could be used. However, its relay output switching time is fluctuant and the av...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jin-Su Kim, Jeonguk Byeon, Daewoong Chun, Su Whan Sung, Jietae Lee
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Chemical engineering
Hysteresis
Identification
Integral
Low pass filters
Noisy
Output feedback
Proposals
Pulse Relay
Relays
Saturation Relay
Signal processing
Three-term control
Transfer functions
Ultimate Data
Working environment noise
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Beschreibung
Zusammenfassung:If there is noise in the original relay feedback system, because of chattering, it is not easy to obtain accurate ultimate information. To prevent chattering of the original relay output, hysteresis relay feedback method could be used. However, its relay output switching time is fluctuant and the average of switching time is different from the ultimate period. Thereby, here, we propose a chattering-free method using the integral signal of process output. This method is very simple and shows results that an obtained ultimate gain is pretty accurate.