INDUCTIVE EXCITATION OF A SERIES RLC-CIRCUIT BY RECTANGULAR VOLTAGE PULSES. ANALYSIS, NUMERICAL ESTIMATES
Journal Title: Вестник Харьковского национального автомобильно-дорожного университета - Year 2019, Vol 85, Issue
Abstract
In this paper, we determined the amplitudetime form of the current in the secondary «output» circuit of a system of two inductively coupled sequential resonant circuits, when the primary "input" circuit is excited by a periodic sequence of rectangular uni-polar voltage pulses. Goal. Determination of the time form of the current at the voltage resonance in the secondary activereactive circuit. The latter is excited by inductive coupling with the primary ac-tive-reactive circuit, where the input signal is repre-sented by a time periodic sequence of rectangular unipolar voltage pulses. Methodology. With the help of limiting transitions to the corresponding, the reliability of the found basic analytical dependences for the excited currents and voltages is shown. The obtained calculated relations are based on rigorous mathematical approach using the apparatus of the theory of electrical circuits. Results. For the experimental model of the system studied, numerical estimates of the dynamic characteristics of the elec-tromagnetic processes occurring are performed. It is shown that with an increase in the quality factor of the resonant circuits, the contribution of higher spectral components to the formation of the “out-put” current drops significantly, and when the latter becomes strictly harmonic. It was found that at volt-age resonance the reactance of inductively coupled circuits tends to zero, and the value of the “input” voltage in the secondary circuit is equal to the amplitude of the first harmonic of the Fourier expan-sion for the exciting signal multiplied by the ratio of the transformer of the coupling between the circuits. Originality. Determination of the time current form at the voltage resonance in the secondary activereactive circuit of a system of two inductively cou-pled circuits, excited by a time periodic sequence of rectangular unipolar voltage pulses, the spectrum of which, along with the fundamental frequency of oscillations, contains so-called higher harmonics with frequencies multiple to the main type hesitation. Practical value. The results of the analysis are necessary for the design of electrical devices with resonant components. For example, to supply high-resistance loads with increased voltage, in induction heating devices, etc.
Authors and Affiliations
U. Batygin, E. Yeryomina, S. Shinderuk, G. Serikov, I. Serikova
Keywords
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- EP ID EP647083
- DOI 10.30977/BUL.2219-5548.2019.85.0.22
- Views 114
- Downloads 0
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