title: ÐÐ¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ° Ð´Ð»Ñ Ð²Ð¾Ð·Ð´ÑÑÐ½Ð¾-Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ·ÐºÐ¸ ÐÐÐ -404
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Modernization of the power supply unit for air plasma cutting APR-404
Creators: name: ÐÐ²Ð°Ð½Ð¾Ð²Ð°, ÐÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð°Ñ ÑÐµÐ·ÐºÐ°
Ð¸ÑÑÐ¾ÑÐ½Ð¸Ðº Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ
ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐµÑ
ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
ÑÐ¸ÑÐ¸ÑÑÐ¾ÑÐ½ÑÐ¹ Ð²ÑÐ¿ÑÑÐ¼Ð¸ÑÐµÐ»Ñ
Ð²ÑÐ¿ÑÑÐ¼Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ
ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°
Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð²
plasma cutting
power supply
thermal calculation
thermal
resistance
thyristor rectifier
rectifier
simulation of thermal processes

description: ÐÐ°Ð½Ð½Ð°Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ° ÑÐ¾Ð´ÐµÑÐ¶Ð¸Ñ Ð² ÑÐµÐ±Ðµ Ð¾Ð´Ð¸Ð½ Ð¸Ð· ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² Ð¼Ð¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð´Ð»Ñ Ð²Ð¾Ð·Ð´ÑÑÐ½Ð¾-Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ·ÐºÐ¸ ÐÐÐ -404. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð´ÐµÑÐ°Ð»ÑÐ½Ð¾Ðµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ·ÐºÐ¸, Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¸Ð°Ð»ÑÐ½Ð°Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ° Ð²Ð¾Ð·Ð´ÑÑÐ½Ð¾-Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ·ÐºÐ¸, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ, Ð¼ÐµÑÐ¾Ð´ ÑÐ°ÑÑÑÑÐ° ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð° Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¸ÐºÐ¾Ð²ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð², Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ°Ð±Ð¾ÑÑ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¿ÑÐ¸ Ð·Ð°Ð¼ÐºÐ½ÑÑÐ¾Ð¹ Ð¸ ÑÐ°Ð·Ð¾Ð¼ÐºÐ½ÑÑÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð² Ð»Ð¸ÑÐµÐ½Ð·Ð¸ÑÑÐµÐ¼Ð¾Ð¼ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¿ÑÐ¾Ð´ÑÐºÑÐµ Matlab/Simulink, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð² ÑÑÐµÐ´Ðµ Comsol Multiphysics 5.6 Ð´Ð»Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð½Ð°Ð³ÑÐµÐ²Ð° Ð´Ð²ÑÑ ÑÐ¸Ð¿Ð¾Ð² ÑÐ°Ð´Ð¸Ð°ÑÐ¾ÑÐ¾Ð² Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð´Ð°Ð½Ð½ÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÑÑ Ð²ÑÐ±Ð¾Ñ ÑÐ°Ð´Ð¸Ð°ÑÐ¾ÑÐ° Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ ÑÐ¸Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ° Ð¿ÑÐ¸ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¼ Ð¸ Ð¿ÑÐµÐ´ÐµÐ»ÑÐ½Ð¾Ð¼ ÐµÐ³Ð¾ Ð½Ð°Ð³ÑÐµÐ²Ðµ Ð²Ð¾ Ð²ÑÐµÐ¼Ñ ÑÐ°Ð±Ð¾ÑÑ, Ð²ÐºÐ»ÑÑÐ°Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð¾ÑÐ»Ð°Ð¶Ð´ÐµÐ½Ð¸Ñ, ÑÐ°ÐºÐ¸Ðµ ÐºÐ°Ðº ÑÐºÐ¾ÑÐ¾ÑÑÑ Ð¾Ð±Ð´ÑÐ²Ð° Ð¸ Ð¿Ð¾Ð´Ð°ÑÐ¸ Ð²Ð¾Ð´Ñ.
description: This final qualifying work of the bachelor contains one of the ways to modernize the power source of the APR-404 installation for air-plasma cutting. The paper provides a detailed description of the plasma cutting technology, the fundamental design of the air-plasma cutting apparatus, a description of the design of the power source, the method for calculating the temperature regime of semiconductor elements, the analysis of the operation of the installation in closed and open control systems using the developed mathematical model in the licensed software product Matlab / Simulink , as well as a mathematical model in the Comsol Multiphysics 5.6 environment for evaluating the heating of two types of cooling radiators. Based on the simulation data, the choice of a radiator for cooling the power element is made at its optimal and maximum heating during operation, including cooling parameters, such as the speed of blowing and water supply.