CN104539218A - Traction converter - Google Patents
Traction converter Download PDFInfo
- Publication number
- CN104539218A CN104539218A CN201510050438.5A CN201510050438A CN104539218A CN 104539218 A CN104539218 A CN 104539218A CN 201510050438 A CN201510050438 A CN 201510050438A CN 104539218 A CN104539218 A CN 104539218A
- Authority
- CN
- China
- Prior art keywords
- circuit
- charger
- traction
- fan
- traction convertor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- 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
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Dc-Dc Converters (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a traction converter which comprises a cabinet body, and a pre-charging circuit, a direct current circuit, a traction inverter, a charger, a direct current fan and an inverting control module which are positioned in the cabinet body, wherein the input terminal of the direct current circuit is connected with the output terminal of the pre-charging circuit, and the input terminal of the traction inverter is connected with the output terminal of the direct current circuit; the output terminal of the traction inverter is connected with a motor load, and the charger is integrated in the traction converter, and the input terminal of the charger is connected with the direct current circuit through a first contactor; the direct current circuit supplies power to the charger, and the output terminal of the charger is connected with a load; the input terminal of the direct current fan is connected with the direct current circuit through a second contactor, and the inverting control module is connected with the traction inverter, the charger and the pre-charging circuit respectively. The failure rate of the traction converter is reduced, the reliability of a system is improved, and the normal operation of vehicles is ensured.
Description
Technical field
The application relates to field of traffic, particularly a kind of traction convertor.
Background technology
Along with the development of technology, the requirement of people to traction convertor is more and more higher.
Existing city rail traction convertor is generally dispelled the heat by AC blower fan; AC blower fan must be powered by outside 3AC380V accessory power supply; and 3AC380V auxiliary power circuit complex structure; volume weight is larger; price costly; and by the large easily automatic overload protection of load effect, make whole load system power-off, and then have influence on vehicle normal operation.
Therefore, how to improve the reliability of trailer system, reduce failure rate, ensure that the normal operation of vehicle is the current technical issues that need to address of those skilled in the art.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of traction convertor; solve AC blower fan in prior art to be powered by outside 3AC380V accessory power supply; and 3AC380V auxiliary power circuit complex structure; volume weight is larger; price costly; and by the large easily automatic overload protection of load effect, make whole load system power-off, and then have influence on the problem of vehicle normal operation.Its concrete scheme is as follows:
A kind of traction convertor, comprising:
Cabinet, and be positioned at the pre-charge circuit of described cabinet, DC circuit, traction invertor, charger, DC fan and inversion control module;
The input of described DC circuit is connected with the output of described pre-charge circuit, and described pre-charge circuit is that described DC circuit carries out precharge;
The input of described traction invertor is connected with the output of described DC circuit, the output of described traction invertor connects motor load, the converting direct-current power into alternating-current power that described DC circuit exports by described traction invertor, drives described motor load work;
Described charger is integrated in traction convertor, and the input of described charger is connected with described DC circuit by the first contactor, and described charger is powered by described DC circuit, and the output of described charger connects load;
The input of described DC fan is connected with described DC circuit by the second contactor, the DC-voltage supply that described DC fan is exported by described DC circuit, and described DC fan carries out the cooling of described traction convertor;
Described inversion control module is connected with described pre-charge circuit with described traction invertor, described charger respectively.
Above-mentioned traction convertor, preferably, described DC circuit comprises:
Electric capacity and reactor;
Described pre-charge circuit is that the described electric capacity in described DC circuit carries out precharge, and described reactor is used for voltage stabilizing.
Above-mentioned traction convertor, preferably, also comprises:
Be positioned at the dividing plate of described traction convertor inside, in the middle part of described dividing plate, there is air channel;
Described reactor, described DC fan and described charger are positioned at the side of described dividing plate, and described DC fan is positioned at the middle part of described reactor and described charger;
Respectively there is an air outlet duct at described reactor place and described charger place;
Described traction invertor is positioned at the opposite side of described dividing plate, and described traction invertor is positioned at the below of described DC fan, the top in air inlet air channel;
Described traction invertor, described DC fan, described reactor and described charger form T-shaped structure;
Described DC fan sucks cold wind from described air inlet air channel, and dispels the heat from described air outlet duct.
Above-mentioned traction convertor, preferably, described traction invertor comprises:
Chopper circuit and DC/AC inverter circuit;
First output of described chopper circuit connects the input of described DC/AC inverter circuit;
Second output of described chopper circuit connects brake resistance.
Above-mentioned traction convertor, preferably, described charger comprises:
High frequency DC/DC translation circuit and LC filter circuit;
The output of described high frequency DC/DC translation circuit connects the input of described LC filter circuit;
Described high frequency DC/DC translation circuit carries out high-frequency isolation and step-down to the electric current of described charger;
Described LC filter circuit carries out filter rectification to the electric current after described high frequency DC/DC translation circuit high-frequency isolation and step-down.
Above-mentioned traction convertor, preferably, described charger is DC24V charger.
Above-mentioned traction convertor, preferably, described charger is DC110V charger.
Above-mentioned traction convertor, preferably, also comprises:
Power panel, described power panel is described inversion control module for power supply.
In a kind of traction convertor that the application provides, DC fan is utilized to carry out the cooling of traction convertor, described DC fan utilizes DC circuit directly to power, no longer need external auxiliary Power supply, entire automobile electric system is made no longer to need 3AC380V accessory power supply, also just eliminate 3AC380V accessory power supply overload protection and make the risk of traction blower fan power down, and then reduce the failure rate of traction convertor, improve the reliability of system, the normal operation of vehicle can be ensured, in addition, charger is integrated in traction convertor, described charger is connected with described DC circuit, the DC circuit in traction convertor is utilized directly to power, eliminate pre-charge circuit and the intermediate DC circuit of charger inside, simplify the main circuit of charger, make the volume of traction convertor less, weight is lighter.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the main circuit structure schematic diagram of a kind of traction convertor of the application;
Fig. 2 is the vertical view of a kind of traction convertor of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Show the main circuit structure schematic diagram of a kind of traction convertor of the application see Fig. 1 and Fig. 2, Fig. 1, Fig. 2 shows the vertical view of a kind of traction convertor of the application.
In the present embodiment, this system comprises:
Cabinet, and be positioned at the pre-charge circuit 101 of described cabinet, DC circuit 102, traction invertor 103, charger 104, DC fan 105 and inversion control module 106.
The input of described DC circuit 102 is connected with the output of described pre-charge circuit 101, and described pre-charge circuit 101 carries out precharge for described DC circuit 102.
The input of described traction invertor 103 is connected with the output of described DC circuit 102, the output of described traction invertor 103 connects motor load, the converting direct-current power into alternating-current power that described DC circuit 102 exports by described traction invertor 103, drives described motor load work;
Described charger 104 is integrated in traction convertor, the input of described charger 104 is connected with described DC circuit 102 by the first contactor, described charger 104 is powered by described DC circuit 102, the output of described charger 104 connects load, in addition, the inverse control system of returning traction convertor self is powered.
Described charger 104 is directly from the power taking of described DC circuit 102, and described charger 104 is inner to be optimized main circuit without pre-charge circuit, can reduce costs, and reduces equipment volume and weight, reduces system wiring length.
The input of described DC fan 105 is connected with described DC circuit 102 by the second contactor, the DC-voltage supply that described DC fan 105 is exported by described DC circuit 102, and described DC fan 105 carries out the cooling of described traction convertor.
Described first contactor and described second contactor are normally open contactor; when traction convertor normally works; described first contactor and described second contactor close; when the unexpected power-off of traction convertor or fault; described first contactor and described second contactor disconnect, and described charger 104 and described DC fan 105 can be protected not to affect by described DC circuit 102 impulse current.
The maximum feature of DC fan has matched DC motor, and DC fan, by input direct-current electric energy, makes DC motor rotate to drive draught fan impeller to rotate, thus realizes direct current energy to mechanical energy transfer process.
Utilize DC traction blower fan to replace alternating current traction blower fan in the application, carry out the cooling of traction convertor, this traction convertor does not need external auxiliary Power supply, thus makes entire automobile electric system remove 3AC380V accessory power supply to become possibility; Because DC fan directly obtains galvanic current source from DC750V or DC1500V of traction convertor DC side; outside 3AC380V accessory power supply is not needed to power; thus eliminate 3AC380V accessory power supply overload protection and make the risk of traction blower fan power down; and then reduce the failure rate of traction convertor, solve the heat dissipation problem of onboard electrical trailer system without traction convertor in 3AC380V accessory power supply situation.
Described traction invertor 103, described charger 104 and described DC fan 105 is parallel relationship, and described traction invertor 103, described charger 104 and described DC fan 105 share pre-charge circuit.
Described inversion control module 106 is connected with described pre-charge circuit 101 with described traction invertor 103, described charger 104 respectively.
In the application, described DC circuit 102 comprises:
Electric capacity and reactor 107; Described pre-charge circuit 101 is that the described electric capacity in described DC circuit 102 carries out precharge, and described reactor 107 is for voltage stabilizing.
In the application, also comprise:
Be positioned at the dividing plate of described traction convertor inside, in the middle part of described dividing plate, there is air channel.
Described reactor 107, described DC fan 105 and described charger 104 are positioned at the side of described dividing plate, described DC fan 105 is positioned at the middle part of described reactor 107 and described charger 104, and respectively there is an air outlet duct at described reactor 107 place and described charger 104 place; Described traction invertor 103 is positioned at the opposite side of described dividing plate, and described traction invertor 103 is positioned at the below of described DC fan 105, the top in air inlet air channel; Described traction invertor 13, described DC fan 105, described reactor 107 and described charger 104 form T-shaped structure; Described DC fan 105 sucks cold wind from described air inlet air channel, and dispels the heat from described air outlet duct.
Traction convertor produces the maximum module of heat, all wind all blows to traction invertor 103 bottom heat radiation sheet after entering from air inlet, and then separately blow to reactor 107 and charger 104 by DC fan 105, such structure can make the traction invertor 103 as core devices have enough air quantity heat radiations, can promote current transformer integral heat sink effect.
Described traction invertor 103 comprises:
Chopper circuit and DC/AC inverter circuit;
First output of described chopper circuit connects the input of described DC/AC inverter circuit;
Second output of described chopper circuit connects brake resistance.
Described charger 104 comprises:
High frequency DC/DC translation circuit 108 and LC filter circuit 109;
The output of described high frequency DC/DC translation circuit 108 connects the input of described LC filter circuit 109;
The electric current of described high frequency DC/DC translation circuit 108 to described charger 104 carries out high-frequency isolation and step-down;
Described LC filter circuit 109 carries out filter rectification to the electric current after described high frequency DC/DC translation circuit 108 high-frequency isolation and step-down.
Described charger 104 is DC24V charger, or described charger 104 is DC110V charger.
In the application, also comprise:
Power panel 110, described power panel 110 is powered for described inversion control module 106.
In a kind of traction convertor that the application provides, DC fan is utilized to carry out the cooling of traction convertor, described DC fan utilizes DC circuit directly to power, no longer need external auxiliary Power supply, entire automobile electric system is made no longer to need 3AC380V accessory power supply, also just eliminate 3AC380V accessory power supply overload protection and make the risk of traction blower fan power down, and then reduce the failure rate of traction convertor, improve the reliability of system, the normal operation of vehicle can be ensured, in addition, charger is integrated in traction convertor, described charger is connected with described DC circuit, the DC circuit in traction convertor is utilized directly to power, eliminate pre-charge circuit and the intermediate DC circuit of charger inside, simplify the main circuit of charger, make the volume of traction convertor less, weight is lighter.
Charger in the application in traction convertor is except sharing except a set of pre-charge circuit and DC circuit with traction invertor, described charger can also retain its original pre-charge circuit and intermediate DC circuit, the pre-charge circuit that described charger utilizes oneself independent and intermediate DC circuit are powered, described charger and each a set of pre-charge circuit and the DC circuit of using by oneself of described traction invertor.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above a kind of traction convertor that the application provides is described in detail, apply specific case herein to set forth the principle of the application and execution mode, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.
Claims (8)
1. a traction convertor, is characterized in that, comprising:
Cabinet, and be positioned at the pre-charge circuit of described cabinet, DC circuit, traction invertor, charger, DC fan and inversion control module;
The input of described DC circuit is connected with the output of described pre-charge circuit, and described pre-charge circuit is that described DC circuit carries out precharge;
The input of described traction invertor is connected with the output of described DC circuit, the output of described traction invertor connects motor load, the converting direct-current power into alternating-current power that described DC circuit exports by described traction invertor, drives described motor load work;
Described charger is integrated in traction convertor, and the input of described charger is connected with described DC circuit by the first contactor, and described charger is powered by described DC circuit, and the output of described charger connects load;
The input of described DC fan is connected with described DC circuit by the second contactor, the DC-voltage supply that described DC fan is exported by described DC circuit, and described DC fan carries out the cooling of described traction convertor;
Described inversion control module is connected with described pre-charge circuit with described traction invertor, described charger respectively.
2. traction convertor according to claim 1, is characterized in that, described DC circuit comprises:
Electric capacity and reactor;
Described pre-charge circuit is that the described electric capacity in described DC circuit carries out precharge, and described reactor is used for voltage stabilizing.
3. traction convertor according to claim 2, is characterized in that, also comprises:
Be positioned at the dividing plate of described traction convertor inside, in the middle part of described dividing plate, there is air channel;
Described reactor, described DC fan and described charger are positioned at the side of described dividing plate, and described DC fan is positioned at the middle part of described reactor and described charger;
Respectively there is an air outlet duct at described reactor place and described charger place;
Described traction invertor is positioned at the opposite side of described dividing plate, and described traction invertor is positioned at the below of described DC fan, the top in air inlet air channel;
Described traction invertor, described DC fan, described reactor and described charger form T-shaped structure;
Described DC fan sucks cold wind from described air inlet air channel, and dispels the heat from described air outlet duct.
4. traction convertor according to claim 1, is characterized in that, described traction invertor comprises:
Chopper circuit and DC/AC inverter circuit;
First output of described chopper circuit connects the input of described DC/AC inverter circuit;
Second output of described chopper circuit connects brake resistance.
5. traction convertor according to claim 1, is characterized in that, described charger comprises:
High frequency DC/DC translation circuit and LC filter circuit;
The output of described high frequency DC/DC translation circuit connects the input of described LC filter circuit;
Described high frequency DC/DC translation circuit carries out high-frequency isolation and step-down to the electric current of described charger;
Described LC filter circuit carries out filter rectification to the electric current after described high frequency DC/DC translation circuit high-frequency isolation and step-down.
6. traction convertor according to claim 1 or 5, it is characterized in that, described charger is DC24V charger.
7. traction convertor according to claim 1, is characterized in that, described charger is DC110V charger.
8. traction convertor according to claim 1, is characterized in that, also comprises:
Power panel, described power panel is described inversion control module for power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050438.5A CN104539218A (en) | 2015-01-30 | 2015-01-30 | Traction converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510050438.5A CN104539218A (en) | 2015-01-30 | 2015-01-30 | Traction converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104539218A true CN104539218A (en) | 2015-04-22 |
Family
ID=52854705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510050438.5A Pending CN104539218A (en) | 2015-01-30 | 2015-01-30 | Traction converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104539218A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240551A (en) * | 2016-07-29 | 2016-12-21 | 株洲中车时代电气股份有限公司 | A kind of electric braking control method and control system |
| CN109130957A (en) * | 2018-08-30 | 2019-01-04 | 中车大连机车车辆有限公司 | Magnetic-levitation train power-supply system and magnetic-levitation train |
| CN109639157A (en) * | 2018-12-18 | 2019-04-16 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of water cooling electric power conversion apparatus peculiar to vessel |
| CN110417238A (en) * | 2019-06-28 | 2019-11-05 | 西安中车永电电气有限公司 | A kind of traction convertor cabinet for guide rail electric car |
| CN112721742A (en) * | 2021-01-27 | 2021-04-30 | 潍柴动力股份有限公司 | Power control system and method for fuel cell |
| CN112770587A (en) * | 2019-11-04 | 2021-05-07 | 株洲中车时代电气股份有限公司 | Self-adaptive cooling electrical equipment and cooling method thereof |
| CN112848894A (en) * | 2019-11-28 | 2021-05-28 | 中车株洲电力机车研究所有限公司 | Train and auxiliary power supply circuit structure and system thereof |
-
2015
- 2015-01-30 CN CN201510050438.5A patent/CN104539218A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| ABB: "BORDLINE@ CC750 DC 1.5KV Propulsion and auxiliary converter for motors with 1.5kVdc grid voltage", 《BORDLINE@ CC750 DC 1.5KV PROPULSION AND AUXILIARY CONVERTER FOR MOTORS WITH 1.5KVDC GRID VOLTAGE》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240551A (en) * | 2016-07-29 | 2016-12-21 | 株洲中车时代电气股份有限公司 | A kind of electric braking control method and control system |
| CN106240551B (en) * | 2016-07-29 | 2019-08-27 | 株洲中车时代电气股份有限公司 | A kind of electric braking control method and control system |
| CN109130957A (en) * | 2018-08-30 | 2019-01-04 | 中车大连机车车辆有限公司 | Magnetic-levitation train power-supply system and magnetic-levitation train |
| CN109639157A (en) * | 2018-12-18 | 2019-04-16 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of water cooling electric power conversion apparatus peculiar to vessel |
| CN110417238A (en) * | 2019-06-28 | 2019-11-05 | 西安中车永电电气有限公司 | A kind of traction convertor cabinet for guide rail electric car |
| CN112770587A (en) * | 2019-11-04 | 2021-05-07 | 株洲中车时代电气股份有限公司 | Self-adaptive cooling electrical equipment and cooling method thereof |
| CN112848894A (en) * | 2019-11-28 | 2021-05-28 | 中车株洲电力机车研究所有限公司 | Train and auxiliary power supply circuit structure and system thereof |
| CN112721742A (en) * | 2021-01-27 | 2021-04-30 | 潍柴动力股份有限公司 | Power control system and method for fuel cell |
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Application publication date: 20150422 |