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The purpose of this thesis has been to study different types of control strategies for an Electrohydraulic position servo in a Fuel metering valve. The Servo needs a high accuracy and fast response controller. Unlinearlities cause the system dynamics to vary with different operating conditions. A mathematical model implemented in the simulation tool ACSL is used in design and analysis. The System
A Mathematical model of the thickening function of the final clarifier in the activated sludge process has been studied and expanded with diffusion term. A one dimensional diffusion equation for the concentration of suspended sediments has been used.
We report modifications of a Kalman filter, were the intended application is signal processing in the validation of the control system in a dialysis monitor.
To get a wind power plant with variable speed to deliver maximum power at actual windspeed it is important that the speed of the turbine is correct. This paper describles a mthod how to obtain this, by optimization of a parameter of amplification, KQ, in the electrical control of the power plant. A model of the wind power plant and the optimizing algorithm have been designed and implemented in the
