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An approach for the identification of single-input single-output dynamic errors-in-variables bilinear system models for the case of white input noise and coloured output noise is proposed. The algorithm is based on the extension of the bias compensation technique for bilinear systems that is applied to a set of overdetermined normal equations. The separable nonlinear least squares method is used,...
In this paper feasibility of modelling approach based on a bilinear system approximation is demonstrated on one of the most frequently met processes in chemical engineering, namely a continuous stirred tank reactor. Selected examples of such systems from the literature are considered and modelled with a use of dynamic bilinear systems. Advantages of this approach are presented and discussed.
System uncertainties, such as modelling errors, external disturbances etc. can impede the fault detection process. Therefore a need arises for robust fault diagnosis, where complete disturbance decoupling can be achieved. The main contribution of this paper is the design of a parity relation for robust fault detection using right eigenstructure assignment. Up to date the left eigenstructure assignment...
The behavioral framework for modelling and control is a framework that does not distinguish \textit{a priori} between input and output of a system. Control in the behavioral framework does not make use of the intelligent control scheme consisting of observation of system output and feedback. Instead it relies on the interconnection of the to-be-controlled system to an appropriate controller, yielding...
This paper presents a friction compensator design based on parity equations applied to a single stand of a hot strip rolling mill. For the purpose of control, the force acting on the rolled metal piece is measured. However, this measurement is affected by friction, which, due to its strongly nonlinear character, leads to limit cycles. The algorithm presented here utilises the parity equations of a...
The paper focuses on heating ventilation and air conditioning (HVAC) systems dedicated for clean room production plants. The increased energy costs and the awareness of the environmental issues, such as CO2 emissions, prompts the need for increased energy efficiency of such systems. The general aim, therefore, is to increase the energy efficiency of HVAC systems via improved control performance. In...
The paper addresses the problem of identifying a model of a hyperfast switching Peltier cooling system, which has been proposed in a special benchmark session in Cham et al. (2010). A parametric approach is adopted and the prediction-error method is utilised to determine structures and parameters of discrete-time time-invariant, multi-input single-output, black-box models. Some considerations on the...
The behavioural framework for modelling and control is a framework that does not distinguish a priori between input and output of a system. Control in the behavioural framework does not rely on the observation of system output and feedback, but rather on the interconnection of the to-be-controlled system to an appropriate controller, yielding the desired overall behaviour. In this paper, a scheme...
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