In this paper, a generalized Hammerstein model consisting of a static polynomial function in series with time-varying linear model is proposed in order to model the Hammerstein-like multivariable processes whose linear dynamics vary over the operating space.
We build a time-varying linear model of the system and design a linear observer to estimate the indicated torque produced by each cylinder.
This is obtained using parameter-varying linear models that are found to capture the dominant dynamics.
After all, the design was assessed with the vehicle time varying non-linear model showing a good performance and robustness.
This paper discusses the stability of a spinning blade having periodically time varying coefficients for both linear model and geometric nonlinear model.
The other is the NMPC with local linearization that is applied at each sample instant, a linear model with parameter varying is obtained and the optimization in NMPC can be written as a quadratic programming (QP) problem like linear MPC.
Harmonic linearization [18] is a method to transform a nonlinear periodically time varying system into a small-signal linear model, and has been successfully realized to get the impedance of uncontrolled diode rectifiers [6, 19] and single-phase PFC converters [20] as well as grid-connected inverters [21, 22].
First, the HVDC/AC interconnected systems are linearized into a nominal delay-dependent linear model using varying-delay characteristics.
With regard to this we investigate the difference in performance between a quasi-linear model in which the change of immersed surface is modelled by time-varying parameters and a basic linear model in which the immersed surface is time-invariant.
It is based on the exact rewriting of the original time-varying system into a polytopic linear model (PLM).
We evaluated the relevance of varying urban parameters within linear models.
