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The paper presents the application of fractional calculus to describe the dynamics of selected pneumatic elements and systems. In the construction of mathematical models of the analysed dynamic systems, the Riemann-Liouville definition of differintegral of non- integer order was used. For the analysed model, transfer function of integer and non-integer order was determined. Functions describing characteristics...
A diagnostic and control system for a turbine is presented. The influence of the turbine controller on regulation processes in the power system is described. Measured quantities have been characterized and methods for detecting errors have been determined. The paper presents the application of fuzzy neural networks (fuzzy-NNs) for diagnosing sensor faults in the control systems of a steam turbine...
Electromobility is becoming an increasingly popular topic mostly thanks to its positive environmental impact. Replacing combustion engine cars with electric vehicles seems to be a matter of time. Electric cars have many advantages, but their impact on a power quality must be taken into consideration. The article describes current status of electromobility and problems related to the influence of charging...
Sufficient conditions are given under which the controllability and observability of linear electrical circuits is independent of their resistances. In some particular cases the observability depends only on the capacitances or inductances of the electrical circuits.
The article presents a mathematical model of electric traction vehicle movement in a given power supply area. Starting from the presentation of the basic features of the 3 kV DC traction power supply system used in Poland, the author presents a simulation model of electric traction vehicles movement, which allows to determine the mobility and current - voltage possibilities on a selected railway line...
This paper presents a description of the author's method of determining the heat flux penetrating the partition on the basis of a thermographic image. The method is based on a comparison of the temperatures of two areas, one of which is a heatloaded area with a known heat flux (measured in this case by means of a heating box) and the other control area that was not heat-loaded. Based on preliminary...
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