Predictive Functional Control (PFC), belonging to the family of predictive control techniques, has been demonstrated as a powerful algorithm for controlling process plants. The input/output PFC formulation has been a particularly attractive paradigm for industrial processes, with a combination of simplicity and effectiveness. Though its use of a lag plus delay ARX/ARMAX model is justified in ma...

In this paper a simplified ARMAX-type (Autoregressive Moving Average model with eXternal input) adaptive control of a polymerization process approximately in its quasi-stationary limit is presented. This process serves as an appropriate paradigm of multivariable dynamic systems of strong non-linear coupling in the control of which the state propagation of various internal degrees of freedom can...

In this study, it was investigated to what extent linear auto regressive models with external input (ARX) and auto regressive moving average models with external input (ARMAX) could be used to describe the inside air temperature of an unheated, naturally ventilated greenhouse under Western European conditions. Outside air temperature and relative humidity, global solar radiation, and cloudiness...

Dynamic data detection is one of the main concerns in statistical process control (SPC) field. Here we focus on monitoring parametric multivariate dynamic streams using ARMAX-GARCH model, which reflects both influence exogenous variables mean vector and heterogeneity covariance matrix. A quasi maximum likelihood estimator used to estimate parameter a process, top-r scheme proposed monitor param...

rainfall-runoff is one of complex hydrological processes that is affected by a variety of physical and hydrological factors. in this study statistical method armax model, neural network, neuro-fuzzy (anfis subtractive clustering and grid partition) and two hybrid models of this methods were used to simulate rainfall-runoff and prediction of streamflow. in each method optimum structure was deter...

Internal model based temperature controllers are developed for effusion sources that are part of a continuous process for production of thin-film photovoltaic modules. Operation of this system in a research framework necessitates the ability to perform fast, overshoot-free reference changes. To address input constraints, controllers are implemented using an anti-windup scheme. Both empirical AR...

This paper examines numbers of acquisitions for the UK and demonstrates that actual values are predictable and the time-series properties for the series can also be established. A link between economic conditions and acquisition levels seems likely and such models can be easily produced. The economic factors and the time-series properties are then combined in an ARMAX model producing better res...