Direct excitation of a series resonant circuit by rectangular voltage pulses. Analysis, numerical evaluation
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2019, Vol 83, Issue 1
Abstract
Expansion of the use of resonance phenomena in high-effective electrical devices requires detailed consideration of the processes occurring in them. Devices that include a sequential active-reactive circuit are particularly interesting. Such devices allow obtaining multiple power amplification when selecting the appropriate parameters. The purpose of this work is to analyze the direct resonant excitation of a sequential active-reactive circuit with periodic series of rectangular unipolar or oscillating voltage pulses with a resonant frequency of their repetition and, accordingly, to determine its response to excitation. As a result of solving the corresponding problem, differential equations are formulated. Their solution was carried out using an operator method and expressions for currents excited in the circuit were obtained. It is shown that the first harmonic in the amplitude-frequency decomposition, both in the case of unipolar and in the case of oscillating excitation, determines the harmonic component of the excited current with a frequency equal to the resonant frequency and an amplitude equal to the ratio of the amplitude of the first harmonic of the exciting voltage and active resistance of the series resonant circuit. A slightly higher efficiency of unipolar excitation of harmonic processes is noted in comparison with excitation by oscillating sequences of periodic voltage pulses. It is shown that, both in the case of unipolar and oscillating excitation, the contribution of higher spectral components, regardless of the type of input voltage, decreases significantly with increasing Q-factor of the resonant circuit, and with a significant increase in Q-factor, the excited current becomes strictly harmonic.
Authors and Affiliations
Yu. V. Batygin, T. V. Gavrilova, G. S. Serikov, D. A. Kovalenko
Keywords
Related Articles
- EP ID EP624633
- DOI -
- Views 126
- Downloads 0
Assessment of the impact of high temperature on the facing stone from hard rocks
Samples from two deposits of natural stone, which are located in Ukraine, were experimentally studied. Tests of granite samples were carried out at high temperatures of 300, 500, 700, 900 °C. All presented samples show t...
Comparative analysis of time series forecasting models effectiveness by means of a multi-criteria procedure on the example of financial indicators
In the course of the research, a program complex was developed for forecasting time series using models of different classes and analysis of their effectiveness. Known time series models, such as neural networks, fuzzy l...
Models and algorithms of expert procedures formation curriculum of the specialty
A model of quantitative theory of planning and management processes of preparation of highly qualified specialists that meets modern requirements of society is developed. In the process of constructing this model, quanti...
Studies of the process of slipping a single car wheel
The article gives the analysis of known researches connected with studying of features of interaction an automobile wheel with loose soil. On the basis of the analysis of the state of study the question of modeling the w...
Diamond surface finishing of ceramic balls from boron carbide
The article experimentally investigates the influence of factor of machining conditions on diamond surface finishing of ceramic balls from boron carbide. The indicators of machining are rate of work removal parameter, ra...