A stand for research of electrical devices based on ARM-microcontroller

Abstract

The issues of modernization of stands for research of electrical devices by using modern ARM- microcontrollers, which have high performance at low cost, ultra-low power consumption (power supply voltage of 1.8-3.6 V), high noise immunity and reliability are considered. The urgency of the problem, the solution of which requires the development of a modern research stand, is noted. On the basis of the analysis of technical requirements to electric devices, and methods of their tests and researches physical, electric and other parameters which are offered to control in the course of their experimental tests and researches are defined. The existing stands and their schematic diagrams for switching, thermal and other researches of electric devices, their maximum switching capacity, with application of various control systems are considered. The analysis of stands with microcontroller control of researches of electric devices is carried out, their advantages and features of application are presented. It is proposed to replace the existing research stands and measurement, control and management system with an upgraded stand. The structural circuit of the stand based on 32-bit ARM microcontroller is developed, its elements are selected and the algorithm is built, which allows to automate the process of experimental research of electrical devices, with subsequent processing of results and transfer to computer for further analysis and design. All this will significantly reduce the time of testing and experimental research of electrical devices, processing the results and increase their economic efficiency.