RU2697256C1 - Electric locomotive bridge rectifier - Google Patents

Electric locomotive bridge rectifier Download PDF

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Publication number
RU2697256C1
RU2697256C1 RU2018141424A RU2018141424A RU2697256C1 RU 2697256 C1 RU2697256 C1 RU 2697256C1 RU 2018141424 A RU2018141424 A RU 2018141424A RU 2018141424 A RU2018141424 A RU 2018141424A RU 2697256 C1 RU2697256 C1 RU 2697256C1
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RU
Russia
Prior art keywords
windings
electric locomotive
bridge rectifier
transformer
increase
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RU2018141424A
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Russian (ru)
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Илья Николаевич Джус
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Илья Николаевич Джус
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/02—Electric propulsion with power supply external to the vehicle using dc motors
    • B60L9/08—Electric propulsion with power supply external to the vehicle using dc motors fed from ac supply lines
    • B60L9/12—Electric propulsion with power supply external to the vehicle using dc motors fed from ac supply lines with static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Rectifiers (AREA)

Abstract

FIELD: electrical equipment; transportation.
SUBSTANCE: invention relates to the field of electrical equipment of railway transport. In the multi-zone rectifier, valve windings (2,3,4) of the transformer are arranged in order of 25 %, 50 %, 25 %, and in the winding circuit of 50 % (3) there is vacuum switch 6 which is open at the first stage, which allows the extreme windings to operate in parallel, which increases traction effort and reduces losses.
EFFECT: increase of traction force and increase of efficiency factor.
1 cl, 1 dwg

Description

Относится к области электрооборудования железнодорожного транспорта. Широко известный /1/ многозонный выпрямитель содержит трансформатор с отпайками, соединенный с плечами выпрямителя, образованного транзисторами с последовательно включенными диодами. Недостаток такого устройства состоит в сложности и больших потерях энергии на двух последовательно включенных полупроводниковых приборах. Наиболее близким по сути и свойствам является электровозный мостовой выпрямитель /2/, содержащий трансформатор с сетевой и тремя последовательно соединенными вентильными обмотками к выводам которых подключены разноименные выводы пар тиристоров, а одноименные выводы тиристоров объединены в полюса, обмотки выполнены с соотношением витков: две по 25%, одна -50%. Недостаток такого устройства состоит в малом тяговом усилии на первой позиции. Это ухудшает показатели электропоезда мощности. Техническая задача, решаемая в данном предложении, состоит в увеличении тягового усилия на первой позиции и повышение к.п.д.Belongs to the field of electrical equipment of railway transport. The well-known / 1 / multi-zone rectifier comprises a tap transformer connected to the arms of a rectifier formed by transistors with diodes connected in series. The disadvantage of this device is the complexity and large energy losses on two series-connected semiconductor devices. The closest in essence and properties is an electric locomotive bridge rectifier / 2 / containing a transformer with a network and three series-connected valve windings to the terminals of which are connected the opposite terminals of the thyristor pairs, and the thyristor leads of the same name are combined into poles, the windings are made with a ratio of turns: two of 25 %, one -50%. The disadvantage of this device is the low traction in the first position. This affects the performance of the electric power train. The technical problem solved in this proposal is to increase traction in the first position and increase the efficiency

Технический результат обеспечивается тем, что выводы обмоток расположены в порядке 25%, 50%, 25%, причем в цепи обмотки 50% установлен вакуумный выключатель, где в качестве базы (100%) принято суммарное напряжение обмоток. На чертеже приведена схема устройства, где обозначено: 1 - первичная обмотка трансформатора,2, 3, 4 - вентильные обмотки, 5 - тиристоры, 6 - вакуумный выключатель,7 - блок управления, 8 - нагрузка (двигатели).The technical result is ensured by the fact that the leads of the windings are arranged in the order of 25%, 50%, 25%, and a vacuum circuit breaker is installed in the winding circuit of 50%, where the total voltage of the windings is taken as the base (100%). The drawing shows a diagram of the device, where it is indicated: 1 - primary winding of the transformer, 2, 3, 4 - valve windings, 5 - thyristors, 6 - vacuum circuit breaker, 7 - control unit, 8 - load (motors).

Выпрямитель работает следующим образом. Он предназначен для питания тяговых двигателей 8 регулируемым постоянным напряжением. Обмотка 1 трансформатора подключается к контактной сети 25 кВ. На вентильных обмотках 2-4 образуется более низкое напряжение (350-700 В), которое регулируется и выпрямляется тиристорами 5 по сигналам блока 7 управления. Регулированию и выпрямлению подвергается на разных ступенях напряжение, подаваемое от одной обмотки (2, 3, 4) или от двух-трех (и так далее соседних в общем случае). С этой целью блок 7 управления фазово-импульсным способом подает управляющие импульсы только на часть тиристоров (4-6) причем пары тиристоров принадлежат смежным плечам. Как и ранее выпрямитель обеспечивает четыре диапазона регулирования напряжения. На первой позиции выключатель 6 отключен и две крайние обмотки 2 и 4 работают параллельно на выход. То есть выходной ток на малой скорости может быть увеличен вдвое, что важно в режиме трогания. С другой стороны в каждой обмотке протекает половина тока нагрузки, что снижает потери в обмотках и тиристорах. Это доказывает положительный эффект предложения.The rectifier operates as follows. It is designed to power traction motors 8 adjustable constant voltage. The winding 1 of the transformer is connected to a contact network of 25 kV. On the valve windings 2-4, a lower voltage (350-700 V) is formed, which is regulated and rectified by the thyristors 5 according to the signals of the control unit 7. The voltage supplied from one winding (2, 3, 4) or from two to three (and so on neighboring ones in the general case) is subjected to regulation and rectification at different stages. To this end, the phase-pulse control unit 7 supplies the control pulses only to a part of the thyristors (4-6), and the pairs of thyristors belong to adjacent arms. As before, the rectifier provides four voltage regulation ranges. In the first position, the switch 6 is turned off and the two extreme windings 2 and 4 work in parallel to the output. That is, the output current at low speed can be doubled, which is important in the starting mode. On the other hand, half of the load current flows in each winding, which reduces losses in the windings and thyristors. This proves the positive effect of the proposal.

Источники информации:Information sources:

1. Патент РФ на изобретение №. 2498490,2013.1. RF patent for invention No. 2498490,2013.

2. Основы электротранспорта. Под ред. М. Слепцова. М., Академия,2006 стр. 171 рис. 3-252. The basics of electric transport. Ed. M. Sleptsova. Moscow, Academy, 2006 p. 171 fig. 3-25

Claims (1)

Электровозный мостовой выпрямитель, содержащий трансформатор с сетевой и тремя последовательно соединенными вентильными обмотками, к выводам которых подключены разноименные выводы пар тиристоров, а одноименные выводы тиристорв объединены в полюса, обмотки выполнены с соотношением витков: две по 25%, одна - 50%, отличающийся тем, что выводы обмоток расположены в порядке 25%, 50%, 25%, причем в цепи обмотки 50% установлен вакуумный выключатель, где в качестве базы (100%) принято суммарное напряжение обмоток.An electric locomotive rectifier containing a transformer with a network and three series-connected valve windings, the leads of which are connected with the opposite terminals of the thyristor pairs, and the thyristor terminals of the same name are combined into poles, the windings are made with a ratio of turns: two of 25%, one of 50%, characterized in that the conclusions of the windings are arranged in the order of 25%, 50%, 25%, moreover, a vacuum circuit breaker is installed in the winding circuit of 50%, where the total voltage of the windings is taken as the base (100%).
RU2018141424A 2018-11-26 2018-11-26 Electric locomotive bridge rectifier RU2697256C1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886889A (en) * 1996-09-03 1999-03-23 Gec Alsthom Transport Sa Device and method for direct current power supply to a traction system by means of converters from different alternating current or direct current voltages
RU2322749C1 (en) * 2006-11-20 2008-04-20 ГОУ ВПО Дальневосточный государственный университет путей сообщения МПС России (ДВГУПС) Method for control of multizone rectifier of single-phase alternating current
RU2498490C1 (en) * 2012-04-16 2013-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Иркутский государственный университет путей сообщения (ФГБОУ ВПО ИрГУПС) Multizone reversible converter and method of its control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5886889A (en) * 1996-09-03 1999-03-23 Gec Alsthom Transport Sa Device and method for direct current power supply to a traction system by means of converters from different alternating current or direct current voltages
RU2322749C1 (en) * 2006-11-20 2008-04-20 ГОУ ВПО Дальневосточный государственный университет путей сообщения МПС России (ДВГУПС) Method for control of multizone rectifier of single-phase alternating current
RU2498490C1 (en) * 2012-04-16 2013-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Иркутский государственный университет путей сообщения (ФГБОУ ВПО ИрГУПС) Multizone reversible converter and method of its control

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