Model study of the controlled rectifier of mechatronics systems

Abstract

The article discusses the types of semiconductor converters for mechatronics systems and the possibilities of their model research using MATLAB software. A model study of a three-phase controlled rectifier as a regulated power source is considered. The rectifier model includes units for measuring the constant component of the load current and measuring the constant component of the load voltage, a unit for measuring the amplitude and phase of the first harmonic of the supply current, a unit for measuring the active supply current, and a unit for measuring the active and average thyristor currents. An important aspect of the research is the ability to perform a spectral analysis, taking into account that the energy conversion process is associated with the distortion of the current and voltage forms. It is possible to quantify these distortions when expanding non-sinusoidal currents and voltages into a Fourier series when performing spectral analysis using MATLAB.