Frequency response methods for the modelling of bilinear systems.

• Autorzy: Balmer L. , Dunoyer A.
• Języki publikacji: EN

Abstrakty

EN

Non-linear systems are often represented by a linear model around an operating point. However in many industrial processes large variations in operating conditions make this representation inaccurate. A bilinear model representation is often used as a compromise between a linear model and the severe non-linearity of the process. In this paper modelling of a bilinear system using frequency response methods is considered. Conventional frequency response methods cannot be applied to bilinear systems because of the harmonics produced by the multiplicative term in the bilinear representation. This paper obtains theoretical relationships between the complex amplitudes of the Fourier series components present at the output of a bilinear system when the input is a sinusoid. By applying these relationships to measured Fourier components the parameters of the system can be identified and a bilinear model obtained. The method is applied to the modelling of a temperature control system.

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems Science
• Rocznik: 1998
• Tom: Vol. 24, nr 3
• Strony: 5--14
• Opis fizyczny: Biblogr. 5 poz., rys. 9

Twórcy

autor

Balmer L.

autor

Dunoyer A.

• Control Theory and Applications Centre, Coventry University, Priory Street, Coventry CV1 5FB, U.K.