title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð±Ð»Ð¾ÐºÐ° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÐ¼ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¾ÑÐ¾Ð¼
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: Development of a control unit for a high-voltage switch
Creators: name: ÐÐ´ÑÐ¸ÑÐµÐ², ÐÐ°Ð½Ð¸Ð»
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: 2025
Subjects: Ð¿ÐµÑÐµÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
Ð±Ð»Ð¾Ðº ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
Ð±Ð°ÑÐ°ÑÐµÑ
Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑ
Ð¸Ð½Ð²ÐµÑÑÐ¾Ñ
switch
control unit
battery
microcontroller
inverter

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description: The subject of the development was a control unit for a high-voltage switch intended for switching high-voltage circuits of a trolleybus with a long autonomous run, as well as measuring the magnitude of the flowing current. The purpose of the work is to develop a control unit (control board) that provides control of the switch electric drive, processing its position based on signals from limit switches, and digitizing the signal about the input current from the corresponding sensor. Theme of the work is "Development of a control unit for a high-voltage switch". Results. In the course of the work, the concept of building a distributed control system in urban electric transport is described, its structure is presented, its advantages are shown, the principles of building the input high-voltage part of trolleybuses with an increased autonomous run are considered, the place of the high-voltage switch in the circuit is schematically shown, the circuit and design of the high-voltage switch providing switching of power supply modes - contact network or lithium-ion battery are considered, the required load resistor is calculated and the scales of the output current sensor, structurally located inside the switch, are determined. Based on the considered design and the required technical characteristics, a connection diagram of the developed control unit is presented, which made it possible to determine the number of input and output connectors of the developed unit. During the development of the electrical schematic diagram of the high-voltage switch control unit, a microcontroller was selected and its outputs were configured to a sufficient extent for the development, elements for the input discrete signals from the switch limit switches that form the switch position indicators were selected, the required components were calculated, CAN interface elements and power supplies were selected, the circuitry of the signal level shift from the current sensor was presented, allowing the microcontroller to process bipolar signals about the magnitude of the flowing current. Based on the calculations and selected elements, the Electrical Schematic Diagram of the High-Voltage Switch Control Unit was developed. Scope. The high-voltage switch and the control unit developed for it can be widely used in transport, as well as in any other industrial devices that provide for switching between sources at the input that do not require high speed, but provide a guaranteed gap between the input power circuits. Conclusions on the work. The developed high-voltage switch control unit provides all the functions required by the technical specifications. Due to the use of inexpensive solutions and standard products, it has a relatively low production cost, and due to the use of a developed control unit, it will ensure flexibility of adjustment, as well as long-term and trouble-free operation of the entire system as a whole.