title: ÐÐ»Ð¾Ðº Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð·Ð°ÑÑÐ´Ð° ÑÐ¸Ð»ÑÑÑÐ° Ð´Ð»Ñ Ð¸Ð½Ð²ÐµÑÑÐ¾ÑÐ° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
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: Filter pre-charge unit for voltage inverter
Creators: name: ÐÑÑÐ¾ÑÐ¸Ð½, ÐÐ½Ð´ÑÐµÐ¹
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: 2023
Subjects: ÐµÐ¼ÐºÐ¾ÑÑÐ½Ð¾Ð¹ ÑÐ¸Ð»ÑÑÑ
ÑÑÐ³Ð¾Ð²ÑÐ¹ Ð¸Ð½Ð²ÐµÑÑÐµÑ
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ
Ð´ÑÐ¾ÑÑÐµÐ»Ñ
capacitive filter
traffic inverter
transformer
chocolate

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description: The subject of development was a device for pre-charging the power filter of the traction inverter, which ensures the charge of the capacitors when the vehicle is put into operation after a standstill, which makes it possible to turn on the circuit breaker without current shock. The purpose of the work is to consider the structure of an electric drive on a rolling stock, develop an electrical circuit diagram of a device for charging power filter capacitors in a traction inverter based on calculated and selected components, and computer simulation of the proposed solution. Theme of work - "Filter pre-charge unit for voltage inverter". Results. The issues of principles of construction of traction electric drive systems on rolling stock, its technical characteristics are considered. The structure of the developed block of the filter charge is proposed. A calculation was made, on the basis of which the elements of the filter charge device were selected. A circuit diagram of the filter charge block has been developed. A computer model has been built, graphs of the primary winding current, output current and output voltage have been obtained. Application area. When designing devices and circuits for new and modernized rolling stock, it is necessary to develop a new circuitry base for devices. At present, due to economic and other peculiarities in the activities of domestic enterprises and organizations associated with the development, modernization and operation of rolling stock, there is a particularly acute need for the rapid development of these devices, which most flexibly allow the introduction of equipment from new suppliers in any combination. Traction inverters are no exception, requiring a revision of the methods of their physical implementation, due to the more complicated conditions for purchasing components. Work conclusions. The developed traction inverter filter charge unit satisfies the set requirements, performs all the tasks assigned to its functioning, ensuring the prevention of a large inrush current that would occur when the input voltage of the contact network is switched on to the discharged capacitors of the power filter.