Sigmoid based PID controller implementation for rotor control
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper presents a sigmoid based variable coefficient PID (SBVC-PID) controller design for Twin Rotor MIMO System (TRMS). The proposed SBVC-PID controller dynamically changes controller coefficients according to a modified sigmoid function of the error signal. The modified sigmoid function is used to limit variability of PID controller coefficients in a predefined range. In the proposed method, each parameters of PID, namely pk, kt and kd, alter between predefined upper and lower bounds. A modified sigmoid function adjusted by a transition coefficient is used to alter each of the PID parameters between these bound limits. The variable coefficients of SBVC-PID maintain a hypercube in kp, kt and kd parameter space satisfying robust stability of the system. Well-known Kharitonov polynomials are used to ensure that the SBVC-PID coefficient alteration takes place in the robust stability intervals. Due to dynamically change of PID coefficients depending on magnitude of error signal, the control performance can be improved compared to conventional PID control. Performance of SBVC-PID controller is demonstrated via theoretical examples and TRMS rotor control simulations. © 2015 EUCA.
Açıklama
European Control Conference, ECC 2015 -- 15 July 2015 through 17 July 2015 -- 118225
Anahtar Kelimeler
Electric control equipment, MIMO systems, Proportional control systems, System stability, Three term control systems, Control performance, Controller coefficient, Controller designs, Kharitonov polynomials, Transition coefficient, Twin rotor MIMO system (TRMS), Upper and lower bounds, Variable coefficients, Controllers
Kaynak
2015 European Control Conference, ECC 2015
WoS Q Değeri
Scopus Q Değeri
N/A
