CN104767398A - High-integration converter device - Google Patents
High-integration converter device Download PDFInfo
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- CN104767398A CN104767398A CN201510146064.7A CN201510146064A CN104767398A CN 104767398 A CN104767398 A CN 104767398A CN 201510146064 A CN201510146064 A CN 201510146064A CN 104767398 A CN104767398 A CN 104767398A
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Abstract
The invention discloses a high-integration converter device. The high-integration converter device comprises a draft control unit, a rectification unit, a middle direct current circuit and an inverter unit, wherein the draft control unit, the rectification unit, the middle direct current circuit and the inverter unit are arranged in a same converter cabinet. The draft control unit is used for carrying out real-time control on the rectification unit and the inverter unit. The rectification unit is used for accessing a power source and outputting direct voltage to the middle direct current circuit. The middle direct current circuit is an intermediate link of the rectification unit and the inverter unit. The inverter unit is used for converting direct current into three-phase alternating current which is supplied to a traction motor, and providing electricity for an auxiliary device arranged outside an inverter device of a motor train unit. The high-integration converter device has the advantages of being simple and compact in structure, high in integration degree, and reliable in performance.
Description
Technical field
The present invention is mainly concerned with field of track traffic, refers in particular to a kind of integrated convertor assembly of height being applicable to rail traffic vehicles.
Background technology
Motor train unit convertor assembly, as the core component of motor train unit, carries and power grid energy is carried out a series of conversion in order to drive traction electric machine and the significant task into auxiliary equipment supply of electrical energy on car.Along with track traffic is fast-developing, various electric locomotive or motor train unit etc. generally adopt high-power current converting device, such as igbt (Insulate Gate Bipolar Transistor, IGBT) convertor assembly.
Only comprise main traction converter plant in traditional motor train unit convertor assembly cabinet, and the equipment such as secondary filtering device, auxiliary converter device, secondary buck filter, water-cooling heat radiating device often become cabinet separately independent of outside convertor assembly.Because motor train unit is subject to the restriction of running environment at the bottom of axle weight, installing space, service clearance and car etc., the consideration of synthesise various, independent one-tenth cabinet certainly will add the difficulty of motor train unit cost and space layout.That is, current all field of track traffic use main traction converter plant, auxiliary converter device, secondary buck filter etc. are all become cabinet separately.
Main traction converter plant, powers mainly to the high motor train unit traction electric machine of voltage, electric current or power grade.Equipment is generally made up of main circuit equipments such as rectifying device, intermediate dc loop, inverter, control unit, network communication units, and the said equipment is all assembled in a casing.In convertor assembly, major heat producing components is IGBT power model, and when the equipment in unit volume runs, heat flow is large, and make equipment cooling outstanding problem, therefore high-power main traction converter plant needs water-cooling system to cool usually.Usual circulating water cooling device becomes cabinet separately, and hot channel is only arranged in main traction converter plant inside.
Secondary filtering device, Main Function is to middle DC loop filtering, then provides power supply to inverter and auxiliary converter device.
Auxiliary converter device, powers mainly to the low locomotive auxiliary equipment of voltage, electric current or power grade.The auxiliary converter device of independent one-tenth cabinet is also generally be made up of circuit arrangements such as rectifier, inverter, control units.Because when the equipment in unit volume runs, heat flow is little, equipment cooling usually adopts forced air cooling to dispel the heat and cools, and the Duct design of forced air cooling heat radiation is very exquisite.
Secondary buck filter, mainly realizes transformation that auxiliary converter device exports and the effect such as filtering, supplies stable 3AC380V power supply to auxiliary power consumption equipment.
Practitioner is had to propose a kind of scheme: application number EP19940118334 19941122 discloses a kind of current transformer, its scheme is: the main circuit of current transformer comprises two four-quadrant modules, two main traction invertor modules and intermediate circuit, only describe the annexation between three, but do not relate to the various power supply system integration problems of AuCT and charger, do not introduce the problems such as cabinet layout and water-cooling system yet.Such as application number is the document of CN201120199859.1 again, disclose a kind of traction convertor, mainly describe the cabinet layout of traction convertor, do not relate to the integration problem of the main traction convertor of current transformer, AuCT and secondary filtering device, do not consider the integration problem of cooling system for converter yet.Also has patent documentation: application number is that CN200820110038.4 discloses a kind of high-power traction convertor, mainly describe main circuit of converter to form, and its current transformer comprises AuCT function, but do not relate to the integral layout of this current transformer, the problem of the aspect such as the system integration and water-cooling system.
Summary of the invention
The technical problem to be solved in the present invention is just: for prior art exist technical problem, the invention provides a kind of simple and compact for structure, integrated level is high, the integrated convertor assembly of the height of dependable performance.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of high integrated convertor assembly, comprise be positioned at same converter cabinet traction control unit, rectification unit, intermediate dc loop and inversion unit, described traction control unit is used for controlling in real time rectification unit, inversion unit, described rectification unit be used for access power supply and output dc voltage to intermediate dc loop, described intermediate dc loop is the intermediate link between rectification unit and inversion unit; Described inversion unit is used for direct current to change into three-phase alternating current supply traction motor and powers for the auxiliary equipment of motor train unit convertor assembly outside.
As a further improvement on the present invention: described inversion unit comprises two main inversion modules and an auxiliary change module, described main inversion module is used for constant direct voltage being converted to three-phase alternating current supply traction electric machine; Described auxiliary change module is used for constant direct voltage being converted to auxiliary power consumption equipment on three-phase alternating current constant voltage constant frequency or variable voltage variable frequency supply car.
As a further improvement on the present invention: described auxiliary change module is powered to auxiliary equipment by secondary buck filter, and described secondary buck filter comprises filter capacitor and auxiliary transformer.
As a further improvement on the present invention: in described inversion unit main inversion module and/or auxiliary change module identical with the structure of rectification module in rectification unit.
As a further improvement on the present invention: described rectification unit comprises rectification module front stage circuits and two rectification modules, described rectification module front stage circuits comprises charging resistor, charging contactor and functional contact device, and described rectification module is used for the constant direct voltage source providing to match to motor side inversion module.
As a further improvement on the present invention: described intermediate dc loop comprises intermediate voltage Support Capacitor, resonator, filter electric capacity, chopper circuit, intermediate voltage measuring circuit and fixing discharge resistance.
As a further improvement on the present invention: also comprise secondary filtering device, be used for carrying out filtering to middle DC loop, then provide power supply to inversion in inversion unit.
As a further improvement on the present invention: described secondary filtering device comprises secondary filtering reactor and copped wave resistance.
As a further improvement on the present invention: also comprise water-cooling heat radiating device, heat exchanger, water pump, expansion tank that described water-cooling heat radiating device is comprised cooling blower and is connected by cooling pipe, fill by coolant in described cooling pipe; Described heat exchanger is used for realizing the exchange of liquid-gas heat, and described water pump is used to provide the circulation power of coolant.
As a further improvement on the present invention: described cooling pipe comprises main water inlet tube, primary flow pipe, some points of branching pipes and flexible pipe, described coolant is from water pump pump toward main water inlet tube, and described main water pipeline connects power model by flexible pipe and carries out exchange heat; Primary flow pipe is flowed back to by flexible pipe at the coolant carrying out exchange heat after heat with power model, coolant inflow heat exchanger in primary flow pipe, the cooling of coolant is carried out at internal heat exchanger, cooled coolant flows into water pump from a delivery port part for heat exchanger, and another part coolant flows to expansion tank from heat exchanger.
Compared with prior art, the invention has the advantages that:
1, the present invention is by traction control unit (DCU), rectification unit, intermediate dc loop, inversion unit, secondary filtering device, secondary buck filter, water-cooling heat radiating device, control system and network communicating system in same cabinet, and integrated level is high.The number of devices of independent one-tenth cabinet reduces, and uses manpower and material resources sparingly, saves the installing space bottom motor train unit.The function of supplying power height of convertor assembly of the present invention is integrated, is conducive to the cabling of the control of control system, monitoring and network communicating system, and motor train unit control system and Network System Reliability are strengthened.
2, convertor assembly of the present invention is by configuring different functional modules, realizes multiple power sources power supply system and exports.
3, the integrated motor-car traction power set of convertor assembly of the present invention, motor-car assistant load electric supply installation, cooling system, control system and communication system, reduce each equipment as far as possible and independently become cabinet, be conducive to saving motor-car installing space, cost and increase convertor assembly reliability.
4, the Inner eycle cooling system of current transformer of the present invention, takes full advantage of water-cooled and air-cooled two kinds of types of cooling and cooperatively interacts, and power model adopts water-cooled, and auxiliary transformer, auxiliary filter device and secondary filtering reactor adopt air-cooled.
Accompanying drawing explanation
Fig. 1 is topological structure principle schematic of the present invention.
Fig. 2 is the cooling schematic diagram of the present invention in embody rule example.
Fig. 3 is the structure composition schematic diagram of each parts in the present invention.
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
Motor train unit is applied to for the present invention; as shown in figures 1 and 3; the integrated convertor assembly of height of the present invention; comprise be positioned at same converter cabinet traction control unit (DCU), rectification unit, intermediate dc loop and inversion unit; the effect of traction control unit (DCU) completes real-time control to rectification unit, inversion unit according to driver instruction; to the electric energy conversion of handing over orthogonal can be realized smoothly, also possess the functions such as complete error protection, fault self-diagnosis simultaneously.Rectification unit be used for access power supply and output dc voltage to intermediate dc loop, intermediate dc loop is the intermediate link between rectification unit and inversion unit.Inversion unit is used for direct current to change into three-phase alternating current supply traction motor and powers for the auxiliary equipment of motor train unit convertor assembly outside.
In the present embodiment, rectification unit comprises rectification module front stage circuits and two rectification modules.Rectification module front stage circuits comprises charging resistor, charging contactor and functional contact device, and rectification module is used for the constant direct voltage source providing to match to motor side inversion module.In two secondary winding access motor train unit convertor assembly casees of traction transformer, introduced the rectification unit of motor train unit convertor assembly by the charging contactor of front end, charging resistor and traction contactor.
In the present embodiment; intermediate dc loop is the intermediate link between rectification unit and inversion unit; comprise intermediate voltage Support Capacitor, resonator, filter electric capacity, chopper circuit, intermediate voltage measuring circuit and fixing discharge resistance, have stable intermediate dc loop voltage, secondary resonator, filter, intermediate dc loop voltage carry out monitoring, limit intermediate dc loop overvoltage and the quick discharge function after shutting down.
In the present embodiment, inversion unit comprises two main inversion modules and an auxiliary change module, i.e. intermediate dc loop Bing Jie tri-tunnel load.In inversion unit main inversion module and/or auxiliary change module identical with the structure of rectification module in rectification unit and can exchange, just change control mode and just can realize rectification or invert function.The effect of main inversion module constant direct voltage is converted to three-phase alternating current (0 ~ 1404V, 0 ~ 200Hz) to supply traction electric machine; The effect of auxiliary change module (auxiliary inversion module) constant direct voltage is converted to three-phase alternating current constant voltage constant frequency (380V/50Hz) or variable voltage variable frequency (0 ~ 380V, 0 ~ 50HZ) to supply auxiliary power consumption equipment in motor train unit.
In the present embodiment, auxiliary change module is powered to the auxiliary equipment of motor train unit convertor assembly outside through secondary buck filter.Secondary buck filter comprises filter capacitor and auxiliary transformer.
In the present embodiment, also comprise secondary filtering device, be used for carrying out filtering to middle DC loop, then in inversion unit, main inversion module and auxiliary change module provide power supply.This secondary filtering device comprises secondary filtering reactor and copped wave resistance.
The integrated convertor assembly of height of the present invention also comprises water-cooling heat radiating device, water-cooling heat radiating device takes away operationally the sent heat of power component by the circulation of cooling fluid, features such as having that cooling effectiveness is high, volume is little, use is clean, safeguard simply, be not affected by environment, the cooling being applicable to very much motor train unit high-power current converting device uses.A whole set of water-cooling heat radiating device in the present invention is integrated in convertor assembly inside, is furnished with heat exchanger, cooling blower, water pump, expansion tank, cooling pipe and coolant (cooling water).Heat exchanger is used for realizing the exchange of liquid-gas heat, and water pump is used to provide the circulation power of coolant.Cooling blower is used to provide on the one hand the power of liquid-gas exchange heat, realizes the external release of heat energy, is used for realizing the wind-cooling heat dissipating of associated components on the other hand.Cooling pipe is the circulation canal of coolant; in order to the phenomenon preventing pure water in the winter time from freezing; coolant adopts pure water and ethylene glycol to mix according to a certain percentage, pipeline is provided with temperature, pressure sensor, to be monitored in real time and protect by motion control unit to cooling system.
As shown in Figure 2, in the present embodiment, cooling pipe comprises main water inlet tube, primary flow pipe, some points of branching pipes and flexible pipe.Coolant, from water pump pump toward the main water pipeline of convertor assembly, is connected six power models by the flexible pipe be connected with main water pipeline and carries out exchange heat with the power device of power model; Primary flow pipe road is flowed back to by flexible pipe, the coolant inflow heat exchanger in primary flow pipe road at the coolant carrying out exchange heat after heat with power model; Carry out the cooling of coolant at internal heat exchanger, cooled coolant flows into water pump from a delivery port part for heat exchanger, and another part coolant flows to expansion tank from heat exchanger, completes and once circulates.
According to the operation principle of traction convertor cooling system, whole traction convertor cooling system performance depends primarily on the effect of heat exchanger heat radiation.For this reason, convertor assembly cabinet inside of the present invention arranges two blower fans (as centrifugal blower) further, to realize the cooling of internal heat exchanger coolant.The cold air of heat exchanger outside sucks in converter cabinet air channel, to realize the transfer of heat exchanger liquid-gas heat by heat exchanger by blower fan.Auxiliary transformer and copped wave resistance is blowed in order to the cooling both realizing by the air after heating.
As from the foregoing, the present invention is by traction control unit (DCU), rectification unit, intermediate dc loop, inversion unit, secondary filtering device, secondary buck filter, water-cooling heat radiating device, control system and network communicating system in same cabinet, and integrated level is high.The number of devices of independent one-tenth cabinet reduces, and uses manpower and material resources sparingly, saves the installing space bottom motor train unit.The function of supplying power height of convertor assembly of the present invention is integrated, is conducive to the cabling of the control of control system, monitoring and network communicating system, and motor train unit control system and Network System Reliability are strengthened.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (10)
1. one kind high integrated convertor assembly, it is characterized in that, comprise be positioned at same converter cabinet traction control unit, rectification unit, intermediate dc loop and inversion unit, described traction control unit is used for controlling in real time rectification unit, inversion unit, described rectification unit be used for access power supply and output dc voltage to intermediate dc loop, described intermediate dc loop is the intermediate link between rectification unit and inversion unit; Described inversion unit is used for direct current to change into three-phase alternating current supply traction motor and powers for the auxiliary equipment of motor train unit convertor assembly outside.
2. the integrated convertor assembly of height according to claim 1, is characterized in that, described inversion unit comprises two main inversion modules and an auxiliary change module, and described main inversion module is used for constant direct voltage being converted to three-phase alternating current supply traction electric machine; Described auxiliary change module is used for constant direct voltage being converted to auxiliary power consumption equipment on three-phase alternating current constant voltage constant frequency or variable voltage variable frequency supply car.
3. the integrated convertor assembly of height according to claim 2, is characterized in that, described auxiliary change module is powered to auxiliary equipment by secondary buck filter, and described secondary buck filter comprises filter capacitor and auxiliary transformer.
4. the integrated convertor assembly of height according to claim 2, is characterized in that, in described inversion unit main inversion module and/or auxiliary change module identical with the structure of rectification module in rectification unit.
5. the integrated convertor assembly of height according to claim 1 or 2 or 3, it is characterized in that, described rectification unit comprises rectification module front stage circuits and two rectification modules, described rectification module front stage circuits comprises charging resistor, charging contactor and functional contact device, and described rectification module is used for the constant direct voltage source providing to match to motor side inversion module.
6. the integrated convertor assembly of height according to claim 1 or 2 or 3, is characterized in that, described intermediate dc loop comprises intermediate voltage Support Capacitor, resonator, filter electric capacity, chopper circuit, intermediate voltage measuring circuit and fixing discharge resistance.
7. the integrated convertor assembly of height according to claim 1 or 2 or 3, is characterized in that, also comprise secondary filtering device, is used for carrying out filtering to middle DC loop, then provides power supply to inversion in inversion unit.
8. the integrated convertor assembly of height according to claim 7, is characterized in that, described secondary filtering device comprises secondary filtering reactor and copped wave resistance.
9. the integrated convertor assembly of height according to claim 1 or 2 or 3, it is characterized in that, also comprise water-cooling heat radiating device, heat exchanger, water pump, expansion tank that described water-cooling heat radiating device is comprised cooling blower and is connected by cooling pipe, fill by coolant in described cooling pipe; Described heat exchanger is used for realizing the exchange of liquid-gas heat, and described water pump is used to provide the circulation power of coolant.
10. according to the integrated convertor assembly of height that claim 9 is stated, it is characterized in that, described cooling pipe comprises main water inlet tube, primary flow pipe, some points of branching pipes and flexible pipe, described coolant is from water pump pump toward main water inlet tube, and described main water pipeline connects power model by flexible pipe and carries out exchange heat; Primary flow pipe is flowed back to by flexible pipe at the coolant carrying out exchange heat after heat with power model, coolant inflow heat exchanger in primary flow pipe, the cooling of coolant is carried out at internal heat exchanger, cooled coolant flows into water pump from a delivery port part for heat exchanger, and another part coolant flows to expansion tank from heat exchanger.
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| CN201510146064.7A CN104767398A (en) | 2015-03-31 | 2015-03-31 | High-integration converter device |
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| CN201510146064.7A CN104767398A (en) | 2015-03-31 | 2015-03-31 | High-integration converter device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790598A (en) * | 2016-04-20 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Highly-reliable main circuit topological structure of railway ground deflector |
| CN106627167A (en) * | 2016-12-30 | 2017-05-10 | 株洲中车时代电气股份有限公司 | Electric drive system used for off-road vehicle |
| CN108123371A (en) * | 2016-11-28 | 2018-06-05 | 中车大同电力机车有限公司 | High Level integrates power supply cabinet |
| WO2018103124A1 (en) * | 2016-12-09 | 2018-06-14 | 中车永济电机有限公司 | Integrated converter cabinet |
| CN110943598A (en) * | 2018-09-21 | 2020-03-31 | 株洲中车时代电气股份有限公司 | Water cooling plant and motor car vehicle |
| CN113131758A (en) * | 2021-04-21 | 2021-07-16 | 株洲中车时代电气股份有限公司 | Current transformer |
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| CN103129564A (en) * | 2011-11-29 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Electric locomotive traction system |
| CN103368413A (en) * | 2013-07-04 | 2013-10-23 | 株洲南车时代电气股份有限公司 | High-integration converter device |
| CN204179953U (en) * | 2014-11-19 | 2015-02-25 | 株洲南车时代电气股份有限公司 | Traction converter plant and module |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103129564A (en) * | 2011-11-29 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Electric locomotive traction system |
| CN103368413A (en) * | 2013-07-04 | 2013-10-23 | 株洲南车时代电气股份有限公司 | High-integration converter device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790598A (en) * | 2016-04-20 | 2016-07-20 | 中国船舶重工集团公司第七〇二研究所 | Highly-reliable main circuit topological structure of railway ground deflector |
| CN108123371A (en) * | 2016-11-28 | 2018-06-05 | 中车大同电力机车有限公司 | High Level integrates power supply cabinet |
| WO2018103124A1 (en) * | 2016-12-09 | 2018-06-14 | 中车永济电机有限公司 | Integrated converter cabinet |
| CN108233676A (en) * | 2016-12-09 | 2018-06-29 | 中车永济电机有限公司 | Integrated converter cabinet |
| CN106627167A (en) * | 2016-12-30 | 2017-05-10 | 株洲中车时代电气股份有限公司 | Electric drive system used for off-road vehicle |
| CN106627167B (en) * | 2016-12-30 | 2019-11-29 | 株洲中车时代电气股份有限公司 | Power drive system for off highway vehicle |
| CN110943598A (en) * | 2018-09-21 | 2020-03-31 | 株洲中车时代电气股份有限公司 | Water cooling plant and motor car vehicle |
| CN113131758A (en) * | 2021-04-21 | 2021-07-16 | 株洲中车时代电气股份有限公司 | Current transformer |
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