CN109552047A - A kind of secondary power system for subway train - Google Patents
A kind of secondary power system for subway train Download PDFInfo
- Publication number
- CN109552047A CN109552047A CN201710878003.9A CN201710878003A CN109552047A CN 109552047 A CN109552047 A CN 109552047A CN 201710878003 A CN201710878003 A CN 201710878003A CN 109552047 A CN109552047 A CN 109552047A
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- CN
- China
- Prior art keywords
- bus
- circuit
- voltage
- power system
- secondary power
- 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.)
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Classifications
-
- 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
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- 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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC 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
Abstract
The invention discloses a kind of secondary power system for subway train, which includes: the first DC bus, the first kind load of connection subway train；Second DC bus connects all air-conditioning equipments of subway train；Ac bus connects all AC loads of subway train；Charger is connect with the first DC bus, provides the first DC voltage to first kind load and battery；At least two AuCTs, wherein every AuCT is connect by auxiliary bus bar with the charger, and it is connect with the second DC bus and ac bus, network pressure from power grid is converted to the second DC voltage only to power to air-conditioning equipment, and the second DC voltage is converted into alternating voltage and is powered to all AC loads.The secondary power system saves the fairing inside air-conditioning equipment, improves air-conditioning equipment efficiency, and simplifies auxiliary converter built-in system Central Plains ac power circuit.
Description
Technical field
The present invention relates to subway transportation field more particularly to a kind of secondary power systems of novel subway train.
Background technique
With the continuous improvement of the level of urbanization, the continuous development of traffic system, railcar has been increasingly becoming large and medium-sized
One of the main means of transport in city, core component of the secondary power system of railcar as railcar, is vehicle
Indispensable important system component.
Traditional secondary power system use AC380V bus for air-conditioning equipment power supply, and air-conditioning equipment then need by
AC380V is rectified into after DC power supply carries out transformation of electrical energy again, and the required high specific that overall load is also taken up for electric loading
Example, causes secondary power system power supply efficiency lower, and internal circuit configuration is complicated.
To sum up, to solve the above-mentioned problems, it is urgent to provide a kind of secondary power systems of novel subway train, to solve
The above problem improves the working efficiency of subway train secondary power system.
Summary of the invention
The first technical problem to be solved by the present invention needs to provide a kind of raising working efficiency, simplifies circuit structure
The secondary power system of novel subway train.
In order to solve the above-mentioned technical problem, embodiments herein provides firstly a kind of auxiliary electricity for subway train
Source system, the secondary power system include: the first DC bus, connect the first kind load of the subway train；Second is straight
Bus is flowed, all air-conditioning equipments of the subway train are connected；Ac bus connects all exchanges of the subway train
Load；Charger is connect with first DC bus, provides the first DC voltage to first kind load and battery；Extremely
Few two AuCTs, wherein every AuCT is connect by auxiliary bus bar with the charger, and with described second
DC bus is connected with ac bus, and the network pressure from power grid is converted to the second DC voltage and is only powered to air-conditioning equipment, and
Second DC voltage is converted to alternating voltage to power to all AC loads.
Preferably, the AuCT includes DC/DC circuit and DC/AC circuit this Two Stages circuit, wherein DC/
Network pressure is transformed to the second DC voltage by DC circuit；DC/AC circuit, and DC/DC circuit connection, by second direct current
Voltage transformation is alternating voltage.
Preferably, the AuCT further include: counnter attack diode is arranged in the output end of DC/DC circuit and connects
Enter between the second DC bus of the second DC voltage；And the positive and negative busbar and DC/AC circuit of the second DC bus are set
Diode between input terminal.
Preferably, the AuCT further include: capacitor, be arranged in the output end of DC/DC circuit positive and negative terminal it
Between, and connect with the anode of the counnter attack diode.
Preferably, the charger and at least two AuCTs are separately mounted to the different compartments of subway train
Or at same compartment.
Preferably, first DC bus is DC110V bus；Second DC bus is DC700V bus；It is described
Ac bus is AC380V bus.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
Have the first DC bus, ac bus and second in the secondary power system of the subway train of the embodiment of the present application
Ac bus, the second ac bus are powered exclusively for air-conditioning equipment, which has following technical effect:
1, the fairing inside air-conditioning equipment is saved, air-conditioning equipment efficiency is improved；
2,0 line of exchange is replaced to power to the air conditioner load for accounting for maximum ratio in secondary power system with the second DC bus,
Then greatly simplify AC load power supply circuit in auxiliary converter built-in system, the weight and efficiency of AuCT mention significantly
It is high；
3, due to the above-mentioned 1st, 2 point of effect, the efficiency of the secondary power system of subway train is also greatly improved.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing technical solution of the present invention.The objectives and other advantages of the invention can by
Specifically noted structure and/or process are achieved and obtained in specification, claims and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to the technical solution of the application or further understanding for the prior art, and constitutes specification
A part.Wherein, the attached drawing for expressing the embodiment of the present application is used to explain the technical side of the application together with embodiments herein
Case, but do not constitute the limitation to technical scheme.
Fig. 1 is the structural schematic diagram of the secondary power system of the subway train of the embodiment of the present application.
Fig. 2 is the circuit diagram of the secondary power system of the subway train of the embodiment of the present application.
Fig. 3 is the circuit diagram of the AuCT of the embodiment of the present application.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching relevant art effect can fully understand and implement.This Shen
Please each feature in embodiment and embodiment, can be combined with each other under the premise of not colliding, be formed by technical solution
It is within the scope of the present invention.
Fig. 1 is the structural schematic diagram of the secondary power system of the subway train of the embodiment of the present application, for Fig. 1
The each composition and function of the secondary power system for subway train of bright the present embodiment.
As shown in Figure 1, the secondary power system includes: the first DC bus D, the second DC bus B, ac bus C, fills
Motor 110, at least two AuCTs, the first AuCT 120 and the second AuCT 130 in diagram.
First DC bus D, the first kind load of connection subway train, this kind load is mainly in addition to air-conditioning equipment
The electrical equipment for needing driving voltage in addition, such as lighting apparatus etc..Second DC bus B connects the institute of subway train
There is air-conditioning equipment.Ac bus C connects all AC loads of subway train, such as traction Fan Equipment etc..Charger
110, it is connect with the first DC bus D, provides the first DC voltage, such as DC110V to first kind load and battery.Extremely
Few two AuCTs, wherein every AuCT is connect by auxiliary bus bar A with charger 110, and with the second direct current
Bus B is connected with ac bus C, and the network pressure from power grid is converted to the second DC voltage (such as DC700V) and is only set to air-conditioning
Available electricity, and the second DC voltage is converted into alternating voltage (such as AC380V) and is powered to all AC loads.
Illustrate the secondary power system of subway train of the present invention with a concrete application example below.The system
In charger and at least two AuCTs can be separately mounted at the different compartments or same compartment of subway train.Such as
Shown in Fig. 2, the setting of charger (LVPS) 110 is separately positioned in B vehicle and C vehicle in A vehicle, other two AuCTs, this example
For convenience of explanation, it is contemplated that the setting of two AuCTs, however, it is readily understood that, setting three or more is all can be with
's.The purpose of such setting is to realize that High redundancy designs, and wherein when a failure, other equipment remain to protect
Testimony electricity demanding.
In this example, the first DC bus is DC110V bus, and the second DC bus is DC700V bus, and ac bus is
AC380V bus.Wherein DC700V bus is only powered to air conditioner load, and AC380V bus gives AC380V load supplying, and DC110V is female
Line gives DC110V load supplying.
A, the input terminal of B, C vehicle is penetrated through using auxiliary bus bar, A vehicle containing LVPS (charger) provide DC110V to
DC110V is loaded and storage battery power supply, setting front-end operations chopper switch and protection fuse in AISB, to charger input terminal
Short-circuit protection is carried out, B vehicle contains an AuCT, provides DC700V and AC380V, includes front-end operations knife in high-voltage board
Lock switch and protection fuse, protect additional high pressure bus, C vehicle also contain AuCT provide DC700V and
AC380V.The wherein DC700V parallel operation of the AuCT output of B, C vehicle, realizes High redundancy design.
In order to realize the voltage output for meeting every road bus power demand, i.e. network pressure DC1500V input, DC700V and
AC380V output, the present embodiment also design AuCT.
Principle is as shown in figure 3, AuCT includes DC/DC circuit and DC/AC circuit this Two Stages circuit, wherein
Network pressure is transformed to the second DC voltage by DC/DC circuit, and in one example, DC/DC circuit converts network pressure DC1500V
For stable DC700V power supply；Second DC voltage conversion is alternating voltage with DC/DC circuit connection by DC/AC circuit,
In one example, DC700V is transformed to AC380V power supply by DC/AC circuit.
Stablize to meet DC700V bus (example of the second DC bus), two pole of counnter attack preferably is set in front end
Counnter attack diode is arranged between the second DC bus of the second DC voltage of the output end of DC/DC circuit and access in pipe
VD1.Furthermore, it is contemplated that load of the DC/AC circuit as DC700V bus, further in the positive and negative busbar of DC700V bus and
Diode VD2 and VD3 are set between the input terminal of DC/AC circuit, prevent DC/AC circuit high frequency ripple from introducing DC700V bus
In.
In addition, as shown in figure 3, the AuCT further include: the output end of DC/DC circuit is arranged in capacitor C1
Between positive and negative terminal, and it is connect with the anode of counnter attack diode VD1.Being provided with capacitor C1 may insure output DC700V voltage
Stablize.
In conclusion the novel secondary power system that the present embodiment proposes introduces DC700V bus, simplify inside air-conditioning
Circuit improves air-conditioning own efficiency.By the way that air conditioner load to be introduced on DC700V bus, AC380V bus is greatly reduced
System burden, AuCT can realize optimization design accordingly, reduce AuCT weight, improve AuCT effect
Rate further increases secondary power system efficiency.Moreover, above-mentioned AuCT uses the conduct of DC/AC translation circuit
DC700V bussed supply mode, effective diode-isolated mode, the effective solution introducing of DC700V bus high frequency components
Problem.
The above, specific implementation case only of the invention, scope of protection of the present invention is not limited thereto, any ripe
Those skilled in the art are known in technical specification of the present invention, modifications of the present invention or replacement all should be in the present invention
Protection scope within.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (6)
1. a kind of secondary power system for subway train, which is characterized in that the secondary power system includes:
First DC bus connects the first kind load of the subway train；
Second DC bus connects all air-conditioning equipments of the subway train；
Ac bus connects all AC loads of the subway train；
Charger is connect with first DC bus, provides the first DC voltage to first kind load and battery；
At least two AuCTs, wherein every AuCT is connect by auxiliary bus bar with the charger, and with institute
It states the second DC bus to connect with ac bus, the network pressure from power grid is converted into the second DC voltage and is only supplied to air-conditioning equipment
Electricity, and second DC voltage is converted into alternating voltage and is powered to all AC loads.
2. secondary power system according to claim 1, which is characterized in that the AuCT includes DC/DC circuit
With this Two Stages circuit of DC/AC circuit, wherein
Network pressure is transformed to the second DC voltage by DC/DC circuit；
Second DC voltage conversion is alternating voltage with DC/DC circuit connection by DC/AC circuit.
3. secondary power system according to claim 2, which is characterized in that the AuCT further include:
Counnter attack diode is arranged in the output end of DC/DC circuit and accesses between the second DC bus of the second DC voltage；
And
Diode between the positive and negative busbar of second DC bus and DC/AC circuit input end is set.
4. secondary power system according to claim 3, which is characterized in that the AuCT further include:
Capacitor is arranged between the positive and negative terminal of the output end of DC/DC circuit, and connect with the anode of the counnter attack diode.
5. secondary power system according to any one of claims 1 to 4, which is characterized in that
The charger and at least two AuCTs are separately mounted to the different compartments or same compartment of subway train.
6. secondary power system according to claim 1, which is characterized in that
First DC bus is DC110V bus；
Second DC bus is DC700V bus；
The ac bus is AC380V bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878003.9A CN109552047A (en) | 2017-09-26 | 2017-09-26 | A kind of secondary power system for subway train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878003.9A CN109552047A (en) | 2017-09-26 | 2017-09-26 | A kind of secondary power system for subway train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109552047A true CN109552047A (en) | 2019-04-02 |
Family
ID=65862151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710878003.9A Pending CN109552047A (en) | 2017-09-26 | 2017-09-26 | A kind of secondary power system for subway train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109552047A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439126A (en) * | 2020-04-27 | 2020-07-24 | 中车青岛四方车辆研究所有限公司 | Auxiliary power supply system for urban rail vehicle, air conditioning unit and urban rail vehicle |
| CN112039313A (en) * | 2020-07-28 | 2020-12-04 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
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| CN203485926U (en) * | 2013-08-05 | 2014-03-19 | 山东朗进科技股份有限公司 | DC powered air-conditioning set of passenger train |
| CN204304788U (en) * | 2014-12-17 | 2015-04-29 | 长沙广义变流技术有限公司 | A kind of DC power supply device of city rail vehicle air-conditioning |
| CN204586527U (en) * | 2015-05-14 | 2015-08-26 | 成都运达科技股份有限公司 | Train auxiliary power system |
| CN105083311A (en) * | 2015-06-04 | 2015-11-25 | 山东朗进科技股份有限公司 | Air conditioner unit and suspension type overhead rail vehicle with air conditioner unit |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203485926U (en) * | 2013-08-05 | 2014-03-19 | 山东朗进科技股份有限公司 | DC powered air-conditioning set of passenger train |
| CN203434881U (en) * | 2013-09-13 | 2014-02-12 | 青岛四方车辆研究所有限公司 | Interconnection wire-free parallel power supply control system of auxiliary current transformers of motor train unit |
| CN103618372A (en) * | 2013-12-11 | 2014-03-05 | 厦门大学 | Photovoltaic direct current micro-grid system |
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| CN105083311A (en) * | 2015-06-04 | 2015-11-25 | 山东朗进科技股份有限公司 | Air conditioner unit and suspension type overhead rail vehicle with air conditioner unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439126A (en) * | 2020-04-27 | 2020-07-24 | 中车青岛四方车辆研究所有限公司 | Auxiliary power supply system for urban rail vehicle, air conditioning unit and urban rail vehicle |
| CN112039313A (en) * | 2020-07-28 | 2020-12-04 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
| CN112039313B (en) * | 2020-07-28 | 2022-02-18 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190402 |
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| RJ01 | Rejection of invention patent application after publication |