CN109428496A - A kind of current transformer and Electric Motor Wheel mine vehicle power supply system - Google Patents
A kind of current transformer and Electric Motor Wheel mine vehicle power supply system Download PDFInfo
- Publication number
- CN109428496A CN109428496A CN201710724375.6A CN201710724375A CN109428496A CN 109428496 A CN109428496 A CN 109428496A CN 201710724375 A CN201710724375 A CN 201710724375A CN 109428496 A CN109428496 A CN 109428496A
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- power supply
- traction
- circuit
- auxiliary
- alternating current
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- 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
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
-
- 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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of current transformer and Electric Motor Wheel mine vehicle power supply system, the current transformer include: traction power supply circuit, are used to carry out cross-straight-intersection conversion to the first alternating current received, obtain the second alternating current, and by the second alternating current transmission to the traction electric machine being attached thereto；Auxiliary power supply circuit, it connect with the intermediate dc circuit in traction power supply circuit, straight-cross-straight-intersection conversion is carried out for transmitting the first direct current come to intermediate DC loop, and by obtained alternating current transmission to the accessory fan being attached thereto, to drive accessory fan to run.By using the current transformer, Electric Motor Wheel mine vehicle power supply system is when traction electric machine is in damped condition without being powered as existing power supply system by improving diesel-driven generator revolving speed for auxiliary power supply circuit, under damped condition, this system enables to diesel-driven generator to may be at idling mode, to improve efficiency, the oil consumption for reducing diesel-driven generator saves the operating cost of system.
Description
Technical field
The present invention relates to converter topology fields, specifically, being related to a kind of current transformer and the power supply of Electric Motor Wheel mine vehicle
System.
Background technique
For the Electric Motor Wheel mine vehicle currently applied, electric drive system is mostly to drive cooling fan by diesel engine
It radiates to current transformer, the air quantity of cooling fan is controlled by the revolving speed of diesel engine, this also allows for the air quantity of cooling fan
It can not be adjusted in real time according to current transformer heat radiation power, the oil consumption range of diesel engine will increase under braking.
Siemens 360t mine card current transformer uses major-minor integrated converter, has the power generation of engine auxiliary winding, passes through
It powers after ac-dc-ac transform to cooling fan, which can adjust turning for cooling fan according to current transformer power in real time
Speed and air quantity.However, the auxiliary circuit power of this current transformer is still mentioned by generator when traction electric machine is in damped condition
For generator auxiliary winding generated output increases, and corresponding diesel engine speed also just needs to improve, and efficiency reduces.
Summary of the invention
To solve the above problems, the present invention provides a kind of current transformer, the current transformer includes:
Traction power supply circuit is used to carry out cross-straight-intersection conversion to the first alternating current received, obtains the second exchange
Electricity, and by second alternating current transmission to the traction electric machine being attached thereto；
Auxiliary power supply circuit is connect with the intermediate dc circuit in the traction power supply circuit, for the centre
DC loop transmits the first direct current come and carries out straight-cross-straight-intersection conversion, and by obtained alternating current transmission to connecting therewith
The accessory fan connect, to drive the accessory fan to run.
According to one embodiment of present invention, the traction power supply circuit includes:
Traction rectifier circuit is used to carry out handing over-directly conversion to the first alternating current received, obtains the first direct current；
Draw inverter circuit, and the traction rectifier circuit connection, for what is come to the traction rectifier circuit transmission
First direct current carries out straight-friendship conversion, obtains the second alternating current.
According to one embodiment of present invention, the traction rectifier circuit includes several rectification modules, each rectification module
Exchange end for receiving different alternating currents, the anode and cathode of the DC terminal of each rectification module are connected respectively, shape
At the anode and cathode of the traction rectifier circuit.
According to one embodiment of present invention, the rectification module includes triphase uncontrollable rectification circuit.
According to one embodiment of present invention, capacitor is integrated in the traction rectifier circuit and/or traction inverter circuit.
According to one embodiment of present invention, the traction power supply circuit further include:
Grounded inspection circuit is connected between the positive electrode and negative electrode of the traction rectifier circuit output end, for detecting
The traction power supply circuit whether there is ground fault.
According to one embodiment of present invention, when the traction electric machine is in damped condition, the traction inverter circuit
The alternating current that the traction electric machine generates can also be converted to corresponding direct current and be transmitted to the auxiliary power supply circuit.
According to one embodiment of present invention, the auxiliary power supply circuit includes:
First auxiliary inversion circuit is connect with the intermediate dc circuit in the traction power supply circuit, for described
The direct current that intermediate dc loop transfer in the traction power supply circuit comes carries out straight-friendship conversion, obtains third alternating current；
Auxiliary transformer, and the first auxiliary inversion circuit connection, for being depressured to the third alternating current,
Obtain the 4th alternating current；
Auxiliary rectifier circuit is connect with the auxiliary transformer, hands over-straight turn for carrying out to the 4th alternating current
It changes, obtains the second direct current；
Second auxiliary inversion circuit comprising multiple auxiliary inversion branches, the input terminal of the multiple auxiliary inversion branch
It is connect respectively with the output end of the auxiliary rectifier circuit, output end with multiple accessory fans for being correspondingly connected with.
According to one embodiment of present invention, different auxiliary inversion branches can receive different control signals, with life
At the alternating current of different frequency.
The present invention also provides a kind of Electric Motor Wheel mine vehicle power supply system, the system comprises:
Generator；
Described in any item current transformers as above, connect with the generator；
Traction electric machine, the traction power supply circuit connection with the current transformer；
Accessory fan, the auxiliary power supply circuit connection with the current transformer.
Electric Motor Wheel mine vehicle power supply system provided by the present invention is when traction electric machine is in damped condition without as existing
Power supply system is powered like that by improving diesel-driven generator revolving speed for auxiliary power supply circuit, under damped condition, this system energy
Enough so that diesel-driven generator may be at idling mode, to improve efficiency, the oil consumption of diesel-driven generator is reduced, is saved
The operating cost of system.
Meanwhile this system can be independently controlled accessory fan using auxiliary power supply circuit, so that auxiliary
Blower can satisfy the air quantity and speed demand of different operating conditions and varying environment.In addition, this system can be efficiently applied to
On Electric Motor Wheel mine car, safety and the working efficiency of Electric Motor Wheel mine car can be effectively 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 understand through the implementation of the invention.Objectives and other advantages of the present invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is required attached drawing in technical description to do simple introduction:
Fig. 1 is the structural schematic diagram of Electric Motor Wheel mine vehicle power supply system according to an embodiment of the invention.
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 technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
Meanwhile in the following description, for illustrative purposes and numerous specific details are set forth, to provide to of the invention real
Apply the thorough understanding of example.It will be apparent, however, to one skilled in the art, that the present invention can not have to tool here
Body details or described ad hoc fashion are implemented.
For the above problem present in existing Electric Motor Wheel mine vehicle power supply system, the present invention provides a kind of new electronic
Mine vehicle power supply system is taken turns, current transformer included in the system uses major-minor integral structure, with very high reliable
Property, and can satisfy requirement of the Electric Motor Wheel mine vehicle to power supply system.
Fig. 1 shows the structural schematic diagram of the Electric Motor Wheel mine vehicle power supply system in the present embodiment.
As shown in Figure 1, the Electric Motor Wheel mine vehicle power supply system preferably includes: generator 101, unsteady flow in the present embodiment
Device 102, traction electric machine and accessory fan.Wherein, generator 101 is for providing three-phase alternating current, and by above-mentioned three-phase alternating current
The current transformer 102 being attached thereto is transported in fax.Specifically, in the present embodiment, generator 101 preferably using diesel-driven generator come
It realizes.Certainly, in other embodiments of the invention, which can also use other reasonable devices
Or equipment provides alternating current, the invention is not limited thereto.
Current transformer 102 is connect with generator 101, and alternating current (the i.e. first exchange come can be transmitted to generator 101
Electricity) it is handled, so as to smoothly control the input voltage of traction electric machine, and smoothly change the output work of traction electric machine
Rate.
In the present embodiment, current transformer 102 preferably includes traction power supply circuit and auxiliary power supply circuit.Wherein, it draws
Power supply circuit is connect with generator 101, and when traction electric machine is in traction working condition, traction power supply circuit can be to generator 101
Provided first alternating current carries out cross-straight-intersection conversion, to obtain the second alternating current.Traction power supply circuit can be by above-mentioned
Two alternating current transmissions are to corresponding traction electric machine, to drive the operation of traction electric machine.
Specifically, as shown in Figure 1, in the present embodiment, traction power supply circuit is preferably included: traction rectifier circuit 103 with
And traction inverter circuit.In order to adapt to different power demands, in the present embodiment, generator 101 include there are two auxiliary winding, with
Accordingly, traction rectifier circuit 103 preferably include two rectification modules (i.e. the first rectification module 103a and second rectification mould
Block 103b).
Wherein, the input terminal of the first rectification module 103a is connect with the first auxiliary winding of generator 101, the second rectification module
The input terminal of 103b is then connect with the second auxiliary winding of generator 101, such first rectification module 103a and the second rectification module
The different auxiliary winding that 103b can also receive generator 101 transmit the different alternating currents come.First rectification module 103a
It is connected respectively with the anode and cathode of the DC terminal of the second rectification module 103b, i.e., the first rectification module 103a and second is whole
The anode of the DC terminal of flow module 103b connects and forms the DC terminal anode of traction rectifier circuit 103, the first rectification module
103a connect with the cathode of the DC terminal of the second rectification module 103b and forms the DC terminal cathode of traction rectifier circuit 103.
It should be pointed out that according to actual needs, traction rectifier circuit 103 can choose using the first rectification module 103a
And/or second rectification module 103b hand over-straight conversion come the alternating current that provides generator 101.Wherein, when current transformer needs
When exporting relatively high power, traction rectifier circuit 103 can then use the first rectification module 103a and the second rectification module simultaneously
103b carries out handing over-directly conversion come the alternating current for providing engine 101.
Certainly, in other embodiments of the invention, according to actual needs, traction rectifier circuit 103 can also only include
One rectification module, the invention is not limited thereto.In addition, the rectification that the auxiliary winding number and traction rectifier circuit of generator are included
The quantity of module can also be other reasonable values (such as three with first-class), and the present invention is similarly not so limited to.
In the present embodiment, the first rectification module 103a and/or the second rectification module 103b preferably use such as diode
The triphase uncontrollable rectification circuit of rectification circuit is realized.Certainly, in other embodiments of the invention, the first rectification module
103a and/or the second rectification module 103b can also realize that the invention is not limited thereto using other reasonable circuits.
In the present embodiment, it is integrated with capacitor in each rectification module and traction inverter circuit, these capacitor parallel connection structures
At filter circuit and energy storage branch.Wherein, the first direct current that traction rectifier circuit 103 is exported can export after capacitor filtering
Stable direct current.
Corresponding with traction electric machine quantity, traction inverter circuit includes the identical traction inversion branch of two line structures, i.e.,
The first traction inversion branch 104 being connect with the first traction electric machine TM1 and the second traction being connect with the second traction electric machine TM2
Inversion branch 105.Wherein, first traction inversion branch 104 and second traction inversion branch DC terminal positive and negative anodes respectively with
The positive and negative anodes of the DC terminal of traction rectifier circuit 103 are correspondingly connected with.
When traction electric machine is in traction working condition, traction inverter circuit can transmit traction rectifier circuit 103 next
First direct current carry out it is straight-hand over conversion, to generate corresponding second alternating current, and by second alternating current transmission to corresponding
Traction electric machine, to drive traction electric machine to run.
And when traction electric machine is in damped condition, drawing inverter circuit at this time can then come as rectification circuit to traction
Alternating current provided by motor carries out handing over-directly conversion, to generate corresponding direct current.
As shown in Figure 1, traction power supply circuit further includes grounded inspection circuit 106 and high-voltage indicating circuit in the present embodiment.
Wherein, grounded inspection circuit 106 is connected between the positive electrode and negative electrode of the output end of traction rectifier circuit 103, is led for detecting
Draw power supply circuit with the presence or absence of ground fault.Specifically, in the present embodiment, grounded inspection circuit 106 is preferably included: the first electricity
Hinder R1, second resistance R2 and voltage detector VH.Wherein, first resistor R1 and second resistance R2 connects being electrically connected to of being formed
Between the positive electrode and negative electrode of the output end of traction rectifier circuit 103, the intermediate point of first resistor R1 and second resistance R2 are grounded.Electricity
Pressure detector VH can acquire the total pressure signal and half pressure signal in intermediate dc circuit, and above-mentioned total pressure signal and half are pressed signal
It is compared.If the half of total pressure voltage value and half pressure voltage value are unequal, voltage detector VH can then be generated accordingly
Traction power supply circuit ground fault-signal.
High-voltage indicating circuit preferably includes HT pilot H1, and HT pilot H1 is connected to traction rectifier circuit 103
Output end positive electrode and negative electrode between.Wherein, when the DC side of traction rectifier circuit 103 has electricity, HT pilot H1 will
Meeting electricity forbids user to be operated (such as opening current transformer cover board etc.) to current transformer at this time.
As shown in Figure 1, auxiliary power supply circuit preferably includes in the present embodiment: the first auxiliary inversion circuit 107, auxiliary
Transformer 108, auxiliary rectifier circuit 109 and the second auxiliary inversion circuit.Wherein, the direct current of the first auxiliary inversion circuit 107
It holds and is connect with the DC terminal DC+ and DC- of traction inverter circuit, the DC terminal of traction inverter circuit can be transmitted straight
Galvanic electricity carries out straight-friendship conversion, to obtain third alternating current.
Auxiliary transformer 108 is connect with the first auxiliary inversion circuit 107, can be to 107 institute of the first auxiliary inversion circuit
The third alternating current that transmission comes carries out decompression processing, to obtain lower 4th exchange of voltage value for being suitable for accessory fan
Electricity.
In order to improve the control precision for accessory fan, in the present embodiment, auxiliary power supply circuit is provided with auxiliary rectifier
Circuit 109.Wherein, auxiliary rectifier circuit 109 is connect with auxiliary transformer 108, can be transmitted auxiliary transformer 108 and be come
The 4th alternating current hand over-straight conversion, to obtain the second direct current.
In the present embodiment, auxiliary rectifier circuit 109 is preferably uncontrollable whole using the three-phase of such as diode rectifier circuit
Current circuit is realized.Certainly, in other embodiments of the invention, auxiliary rectifier circuit 109 can also use other reasonable electricity
Realize that the invention is not limited thereto in road.
Since the working time of different accessory fans is different, working condition may also be different, therefore also just need to not
Same accessory fan is independently controlled.In the present embodiment, the second auxiliary inversion circuit in auxiliary power supply circuit is preferably
It include multiple auxiliary inversion branches connected from different accessory fans.For example, as shown in Figure 1, auxiliary power supply circuit includes
First auxiliary inversion branch 110 and the second auxiliary inversion branch 111, wherein the first auxiliary inversion branch 110 and the first auxiliary wind
Machine M1 connection, the second auxiliary inversion branch 111 are connect with the second accessory fan M2.The second different auxiliary inversion branches can connect
Receive different control signals, to generate the alternating current of different frequency, so also can so that different accessory fans with not
Same revolving speed carrys out work.In the present embodiment, each auxiliary inversion branch is equally integrated with capacitor, which can be to auxiliary rectifier
Circuit 109 transmits the second direct current come and is filtered.
In the present embodiment, when traction blower is in traction working condition, traction power supply circuit can provide generator 101
Alternating current handled, and the operation of traction electric machine is driven using the alternating current of generation.Meanwhile traction power supply circuit can also
Enough auxiliary power supply electricity will be supplied to self by obtained direct current handle to alternating current provided by generator 101
Road, to give the alternating current transmission of generation to corresponding accessory fan by multiple auxiliary inversion branches by auxiliary power supply circuit, from
And accessory fan is driven to run.
And when drawing blower and being in damped condition, for existing power supply system, auxiliary power supply circuit at this time
Power still has generator to provide, and the generated output of such generator auxiliary winding also just needs to increase, corresponding diesel engine
Revolving speed just needs to improve.However for the power supply system provided by the present embodiment, when drawing blower and being in damped condition,
Direct current required for auxiliary power supply circuit is to be carried out handing over-directly conversion to the alternating current that traction electric machine provides by traction inverter circuit
Obtained from.Therefore diesel-driven generator also may be in idling state at this time, to improve efficiency, reduce diesel oil
The oil consumption of generator saves the operating cost of system.
As can be seen that Electric Motor Wheel mine vehicle power supply system provided by the present invention is in traction electric machine from foregoing description
Without being powered as existing power supply system by improving diesel-driven generator revolving speed for auxiliary power supply circuit when damped condition,
Under damped condition, this system enables to diesel-driven generator to may be at idling mode, to improve efficiency, reduces diesel oil
The oil consumption of generator saves the operating cost of system.
Meanwhile this system can be independently controlled accessory fan using auxiliary power supply circuit, so that auxiliary
Blower can satisfy the air quantity and speed demand of different operating conditions and varying environment.In addition, this system can be efficiently applied to
On Electric Motor Wheel mine car, safety and the working efficiency of Electric Motor Wheel mine car can be effectively improved.
It should be understood that disclosed embodiment of this invention is not limited to specific structure disclosed herein or processing step
Suddenly, the equivalent substitute for these features that those of ordinary skill in the related art are understood should be extended to.It should also be understood that
It is that term as used herein is used only for the purpose of describing specific embodiments, and is not intended to limit.
" one embodiment " or " embodiment " mentioned in specification means the special characteristic described in conjunction with the embodiments, structure
Or characteristic is included at least one embodiment of the present invention.Therefore, the phrase " reality that specification various places throughout occurs
Apply example " or " embodiment " the same embodiment might not be referred both to.
Although above-mentioned example is used to illustrate principle of the present invention in one or more application, for the technology of this field
For personnel, without departing from the principles and ideas of the present invention, hence it is evident that can in form, the details of usage and implementation
It is upper that various modifications may be made and does not have to make the creative labor.Therefore, the present invention is defined by the appended claims.
Claims (10)
1. a kind of current transformer, which is characterized in that the current transformer includes:
Traction power supply circuit is used to carry out cross-straight-intersection conversion to the first alternating current received, obtains the second alternating current, and
By second alternating current transmission to the traction electric machine being attached thereto；
Auxiliary power supply circuit is connect with the intermediate dc circuit in the traction power supply circuit, for the intermediate dc
Circuit transmits the first direct current come and carries out straight-cross-straight-intersection conversion, and by obtained alternating current transmission to being attached thereto
Accessory fan, to drive the accessory fan to run.
2. current transformer as described in claim 1, which is characterized in that the traction power supply circuit includes:
Traction rectifier circuit is used to carry out handing over-directly conversion to the first alternating current received, obtains the first direct current；
Draw inverter circuit, and the traction rectifier circuit connection, first for coming to the traction rectifier circuit transmission
Direct current carries out straight-friendship conversion, obtains the second alternating current.
3. current transformer as claimed in claim 2, which is characterized in that the traction rectifier circuit includes several rectification modules, each
The exchange end of rectification module is respectively corresponded for receiving different alternating currents, the anode and cathode of the DC terminal of each rectification module
Connection, forms the anode and cathode of the traction rectifier circuit.
4. current transformer as claimed in claim 3, which is characterized in that the rectification module includes triphase uncontrollable rectification circuit.
5. the current transformer as described in any one of claim 2~4, which is characterized in that the traction rectifier circuit and/or traction
Capacitor is integrated in inverter circuit.
6. current transformer described in any one of claim 2~5, which is characterized in that the traction power supply circuit further include:
Grounded inspection circuit is connected between the positive electrode and negative electrode of the traction rectifier circuit output end, described for detecting
Traction power supply circuit whether there is ground fault.
7. current transformer described in any one of claim 2~6, which is characterized in that when the traction electric machine is in damped condition
When, the alternating current that the traction electric machine generates can also be converted to corresponding direct current and is transmitted to by the traction inverter circuit
The auxiliary power supply circuit.
8. current transformer according to any one of claims 1 to 7, which is characterized in that the auxiliary power supply circuit includes:
First auxiliary inversion circuit is connect with the intermediate dc circuit in the traction power supply circuit, for described
The direct current that intermediate dc loop transfer in traction power supply circuit comes carries out straight-friendship conversion, obtains third alternating current；
Auxiliary transformer is obtained with the first auxiliary inversion circuit connection for being depressured to the third alternating current
4th alternating current；
Auxiliary rectifier circuit is connect with the auxiliary transformer, is handed over-directly conversion for carrying out to the 4th alternating current, is obtained
To the second direct current；
Second auxiliary inversion circuit comprising multiple auxiliary inversion branches, the input terminal difference of the multiple auxiliary inversion branch
It is connect with the output end of the auxiliary rectifier circuit, output end with multiple accessory fans for being correspondingly connected with.
9. current transformer according to any one of claims 8, which is characterized in that different auxiliary inversion branches can receive different control letters
Number, to generate the alternating current of different frequency.
10. a kind of Electric Motor Wheel mine vehicle power supply system, which is characterized in that the system comprises:
Generator；
Such as current transformer according to any one of claims 1 to 9, it is connect with the generator；
Traction electric machine, the traction power supply circuit connection with the current transformer；
Accessory fan, the auxiliary power supply circuit connection with the current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710724375.6A CN109428496A (en) | 2017-08-22 | 2017-08-22 | A kind of current transformer and Electric Motor Wheel mine vehicle power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710724375.6A CN109428496A (en) | 2017-08-22 | 2017-08-22 | A kind of current transformer and Electric Motor Wheel mine vehicle power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109428496A true CN109428496A (en) | 2019-03-05 |
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ID=65498133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710724375.6A Pending CN109428496A (en) | 2017-08-22 | 2017-08-22 | A kind of current transformer and Electric Motor Wheel mine vehicle power supply system |
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| CN (1) | CN109428496A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562004A (en) * | 2020-04-28 | 2021-10-29 | 株洲中车时代电气股份有限公司 | Storage battery power supply system and method for mining electric wheel vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720830A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with bus voltage grounding protection voltage-division sampling circuit |
| 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 |
-
2017
- 2017-08-22 CN CN201710724375.6A patent/CN109428496A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720830A (en) * | 2014-12-02 | 2016-06-29 | 永济新时速电机电器有限责任公司 | Traction converter with bus voltage grounding protection voltage-division sampling circuit |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562004A (en) * | 2020-04-28 | 2021-10-29 | 株洲中车时代电气股份有限公司 | Storage battery power supply system and method for mining electric wheel vehicle |
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Application publication date: 20190305 |