Passive Identification is Non Stationary Objects With Closed Loop Control; IOP Conference Series: Materials Science and Engineering; Vol. 142 : Innovative Technologies in Engineering

Bibliografiska uppgifter
Parent link:IOP Conference Series: Materials Science and Engineering
Vol. 142 : Innovative Technologies in Engineering.— 2016.— [012047, 7 p.]
Institutionell upphovsman: Национальный исследовательский Томский политехнический университет
Övriga upphovsmän: Dyadik V. F. Valery Feodosievich, Nadezhdin I. S. Igor Sergeevich, Goryunov A. G. Aleksey Germanovich, Manenti F. Flavio
Sammanfattning:Title screen
Typically chemical processes have significant nonlinear dynamics, but despite this, industry is conventionally still using PID-based regulatory control systems. Moreover, process units are interconnected, in terms of inlet and outlet material/energy flows, to other neighbouring units, thus their dynamic behaviour is strongly influenced by these connections and, as a consequence, conventional control systems performance often proves to be poor. However, there a hybrid fuzzy PID control logic, whose tuning parameters are provided in real time. The fuzzy controller tuning is made on the basis of Mamdani controller, also exploiting the results coming from an identification procedure that is carried on when an unmeasured step disturbance of any shape affects the process behaviour. This paper presents procedure for identifying technological object control in a closed loop, i. e. that operates the automated control system. The variation in the controlled variable, caused by the change of the nonmeasurable disturbance, is considered the initial signal for the identification procedure. The parameters of the control object are found by optimization method Levenberg-Marquardt.
Språk:engelska
Publicerad: 2016
Ämnen:
Länkar:http://dx.doi.org/10.1088/1757-899X/142/1/012047
http://earchive.tpu.ru/handle/11683/34730
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=650416

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