Integrated methodology to calculate nonsinusoidal AC systems of high frequency

Abstract

During the research and development of fundamentally new AC systems of high frequency, the authors identified the problems of the calculations and modeling of the operating modes of such systems according to the method of Yu.M. Osipova. Application of the method gives results that are significantly different from the experimental ones. The aim of the study is to improve the methodology considering the features of high-frequency electrical systems, their topology, and components. The research has been carried out based on a mathematical model of an electrical system of high frequency, which includes a power supply, matching transformers, cable lines and a load. The power supply is modeled in a simplified form with the internal resistance of the transistors. An analytical technique for calculating and modeling high-frequency AC systems has been developed. Analytical expressions are presented to calculate the characteristics and parameters of the high frequency system components. Recommendations on automation of the developed technique using MATLAB, Python or Simulink are presented.Comparison of the results of calculation and the experiment is carried out to confirm the reliability. The results of the research work can be used for modeling and calculating high frequency alternating current systems to determine the current load, voltage levels, analyze overvoltages and emergency modes.