Title: | Difference between supple and stiff non-linear elements |
Authors: | Dąbrowski, Mirosław |
Citation: | AMTEE ’03 : fifth international conference on Advanced Methods in the Theory of Electrical Engineering : September 10-12, 2003 [Klatovy, Czech Republic], p. 15-22. |
Issue Date: | 2003 |
Publisher: | University of West Bohemia |
Document type: | konferenční příspěvek conferenceObject |
URI: | http://amtee.zcu.cz/AMTEE/ArchivedProceedings/proceedings_AMTEE_2003/index.html http://hdl.handle.net/11025/22343 |
Keywords: | nelineární prvky;nelineární rezistor;kapacitní efekt;nonlinear elements;nonlinear resistor;capacitance effect |
Abstract: | In the previous paper a need for a distinction of non-inert (supple) and inert (stiff) non-linear elements has been introduced. There it has been shown, that an influence of an external phenomenon that evokes changes of parameters of the non-linear element can be explained using two kinds of ideal elements (e.g., two resistors) with the same static characteristic function: E = Fs(C), where E is an effect and C is a cause. These two ideal elements are: - an ideal non-inert element (an ideal supple element), in which a change of a parameter occurs immediately with the change of the cause; - an ideal inert element (an ideal stiff element), in which the change of the parameter does not occur after the change of the cause until time t -> . In this paper an example of a simple circuit with a non-linear resistor, supplied with a sinusoidal voltage, is considered. A so-called "capacitance effect" can be stated on the basis of analysis of the equation describing this circuit. For voltage frequencies greater than 10 Hz, the circuit is a quasi-linear system, as for a sinusoidal voltage the current waveform is also sinusoidal. However, for frequencies lower than 5 Hz, the current changes in time accordingly to a non-linear characteristic function of this resistor, thus the current is no more sinusoidal. The first current harmonic is then shifted ahead of the voltage as if the circuit contained a capacitor. |
Rights: | © University of West Bohemia |
Appears in Collections: | CPEE – AMTEE 2003 CPEE – AMTEE 2003 |
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File | Description | Size | Format | |
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Dabrowski.PDF | Plný text | 2,46 MB | Adobe PDF | View/Open |
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