CN208515399U - A kind of electric locomotive and its magneto AC Drive circuit - Google Patents
A kind of electric locomotive and its magneto AC Drive circuit Download PDFInfo
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- CN208515399U CN208515399U CN201821187406.5U CN201821187406U CN208515399U CN 208515399 U CN208515399 U CN 208515399U CN 201821187406 U CN201821187406 U CN 201821187406U CN 208515399 U CN208515399 U CN 208515399U
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Abstract
The utility model discloses a kind of magneto AC Drive circuits, are applied in electric locomotive, comprising: the circuit on side of overhead contact line that input terminal is connect with pantograph；The connection of the output end of primary side winding and circuit on side of overhead contact line, vice-side winding is connect with the input terminal of traction control unit TCU, for carrying out the transformer of voltage transformation；The connection of the input terminal of output end and magneto, the TCU for being powered to magneto；Magneto；Setting is connect on magneto, and with the control unit of TCU, and the rotor-position of the magneto for will acquire is sent to TCU, so that TCU is input to the position sensor of the voltage-phase of magneto according to rotor-position control.Using the embodiment of the utility model, the phase of the input voltage of magneto can be accurately controlled, so that the traction drive of magneto can be used in electric locomotive.The utility model additionally provides a kind of electric locomotive, has relevant art effect.
Description
Technical field
The utility model relates to technical field of rail traffic, exchange more particularly to a kind of electric locomotive and its magneto
Driving circuit.
Background technique
Currently, in domestic electric locomotive, driving circuit mainly using direct current generator and asynchronous traction motor,
The high-power AC transmission power car of especially harmonious series, substantially using asynchronous traction motor.
Magneto has power density high, and driving torque is big, and low speed is high-efficient and the features such as low speed fever is small, but
It is to apply magneto in powerful electric locomotive, then needs to carry out the phase of the input voltage of magneto
It is accurately controlled, so that the revolving speed to magneto is accurately controlled, and currently, there has been no electric locomotives to use Permanent Magnet and Electric
The traction drive of machine.
In conclusion how to be accurately controlled to the phase of the input voltage of magneto, so that in electric locomotive
The traction drive that magneto can be used, is current those skilled in the art technical problem urgently to be solved.
Utility model content
The purpose of the utility model is to provide a kind of electric locomotive and its magneto AC Drive circuits, so that electric power machine
The traction drive of magneto can be used in vehicle.
In order to solve the above technical problems, the utility model provides the following technical solutions:
A kind of magneto AC Drive circuit is applied in electric locomotive, comprising:
Input terminal is connect with pantograph, for receiving the circuit on side of overhead contact line of power grid power supply by the pantograph；
Primary side winding is connect with the output end of the circuit on side of overhead contact line, the input terminal of vice-side winding and traction control unit TCU
Connection, for carrying out the transformer of voltage transformation；
The connection of the input terminal of output end and magneto, the TCU for being powered to the magneto；
The magneto；
Setting is connect on the magneto, and with the control unit of the TCU, the Permanent Magnet and Electric for will acquire
The rotor-position of machine is sent to the TCU, so that the TCU is input to the magneto according to rotor-position control
Voltage-phase position sensor.
Preferably, the pantograph includes the first pantograph and the second pantograph, and the circuit on side of overhead contact line includes:
Circuit on side of overhead contact line main body；
First end is connect with first pantograph, the first high pressure open circuit that second end is connect with the circuit on side of overhead contact line main body
Device；
First end is connect with second pantograph, second end connect with the second end of first high-voltage circuitbreaker
Two high-voltage circuitbreakers.
Preferably, first high-voltage circuitbreaker and second high-voltage circuitbreaker are AC25kV vacuum high-pressure open circuit
Device.
Preferably, the position sensor is Rotary transformer type position sensor.
Preferably, further includes:
First end is connect with the output end of the TCU, and second end is connect with the input terminal of the magneto, for controlling
The isolation circuit of conducting and the shutdown of first end and second end.
Preferably, the isolation circuit include three isolation contactors, each isolation contactor respectively with it is described forever
Connection all the way in the three-phase circuit of magneto.
Preferably, further includes:
It is connect with the magneto, the voltage sensor of the anode-cathode voltage for detecting the magneto.
It preferably, further include being connect with the voltage sensor, the voltage for detecting when the voltage sensor is high
When preset voltage threshold, the alarm of prompt information is sent.
Preferably, further includes: connect with the magneto, the temperature of the stator temperature for detecting the magneto
Sensor.
A kind of electric locomotive, including magneto AC Drive circuit described in any of the above embodiments.
Using technical solution provided by the utility model embodiment, be applied in electric locomotive, comprising: input terminal with by
Pantograph connection, for receiving the circuit on side of overhead contact line of power grid power supply by pantograph；The connection of the output end of primary side winding and circuit on side of overhead contact line,
Vice-side winding is connect with the input terminal of traction control unit TCU, for carrying out the transformer of voltage transformation；Output end and Permanent Magnet and Electric
The input terminal of machine connects, the TCU for being powered to magneto；Magneto；It is arranged on magneto, and and TCU
Control unit connection, the rotor-position of the magneto for will acquire is sent to TCU, so that TCU is according to rotor-position
Control is input to the position sensor of the voltage-phase of magneto.
Position sensor is arranged on magneto in the AC Drive circuit of electric locomotive for the scheme of the application,
And connect with the control unit of TCU, when the rotor of magneto is located at different location, position sensor input it is different as a result,
Correspondingly, TCU can be exported according to position sensor as a result, control the voltage-phase for being input to magneto,
The revolving speed of magneto can be accurately controlled by also allowing for TCU in turn.Due to that can be carried out to the revolving speed of magneto
It is accurately controlled, the magneto AC Drive circuit for also allowing for the application can be applied in electric locomotive.Therefore, this Shen
Scheme please can be accurately controlled the phase of the input voltage of magneto, so that can be using forever in electric locomotive
The traction drive of magneto.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of magneto AC Drive circuit in the utility model；
Fig. 2 is the partial structure diagram of circuit on side of overhead contact line in the prior art；
Fig. 3 is the structural schematic diagram of the magneto AC Drive circuit in specific embodiment of the present invention.
Specific embodiment
The core of the utility model is to provide a kind of magneto AC Drive circuit, can to magneto input electricity
The phase of pressure is accurately controlled, so that can use the traction drive of magneto in electric locomotive.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model a part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, fall within the protection scope of the utility model.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of magneto AC Drive circuit in the utility model, this is forever
Magneto AC Drive circuit is applied in electric locomotive, comprising:
Input terminal is connect with pantograph, for receiving the circuit on side of overhead contact line 10 of power grid power supply by pantograph.
The input terminal of circuit on side of overhead contact line 10 is usually connect with pantograph, and the power supply of power grid is received by pantograph, and output end connects
It is connected on the main transformer of AC Drive circuit.Fig. 2 is seen, is the partial structure diagram of circuit on side of overhead contact line in the prior art,
What the 25kv in figure, 50Hz were indicated is pantograph.
Primary side winding is connect with the output end of circuit on side of overhead contact line 10, the input terminal of vice-side winding and traction control unit TCU30
Connection, for carrying out the transformer 20 of voltage transformation.
The transformer 20 refers to the main transformer of the magneto AC Drive circuit, primary side winding and circuit on side of overhead contact line
10 output end connection, the input terminal connection of vice-side winding and TCU (Traction Control Unit, traction control unit).
Transformer 20 can be used for voltage adjusting, it usually needs is depressured, and then inputs to the voltage inputted via circuit on side of overhead contact line 10
Into TCU30.Due to may include multiple inversion branches in TCU30, multiple vice-side windings are can be set in transformer 20, not shadow
Ring the implementation of the utility model.Fig. 3 is seen, Fig. 3 is that magneto exchange passes in a kind of specific embodiment of the utility model
The structural schematic diagram of dynamic circuit, in fig. 3 it is shown that transformer 20 includes two vice-side windings.
Output end is connect with the input terminal of magneto 40, the TCU30 for being powered to magneto 40.
When transmission system works normally, TCU30 can realize the end electricity to magneto 40 by the voltage of output
The adjusting of pressure is also achieved that the adjusting of the input voltage of the rotor to magneto 40.The adjusting includes the size of voltage
And the adjusting of phase, in the prior art, can be realized relevant parameter by controlling TCU to the size of output voltage and
Phase is adjusted, and common mode is adjusted using the control unit in TCU, for example, adjusting when carrying out signal modulation
The phase of whole carrier wave so that adaptable variation occurs for the phase of the impulse wave generated, namely changes the phase of output voltage.
Magneto 40.
Magneto 40 in the embodiment of the utility model, typically permanent magnet synchronous motor.
Setting is connect on magneto 40, and with the control unit of TCU30, and the magneto 40 for will acquire turns
Sub- position is sent to TCU30, so that TCU30 is input to the position of the voltage-phase of magneto 40 according to rotor-position control
Sensor 50.
The rotor-position of the available magneto 40 of position sensor 50, the classification for the position sensor 50 specifically chosen
The avatar of difference, the rotor-position detected can be different, and installation site can also carry out adaptable adjustment.Using
Position sensor 50 can be photoelectric encoder formula position sensor, high frequency electrocardiography formula position sensor and rotation become
Depressor formula position sensor etc..
In a kind of specific embodiment of the utility model, it is contemplated that Rotary transformer type position sensor has error
Small, precision is high, is lost small, high-efficient and has the advantages that the stronger ability for resisting extraneous adverse circumstances, also, in Permanent Magnet and Electric
When the stationary rotor of machine 40, the position of rotor still can be accurately judged, therefore applicant chooses Rotary transformer type position
Set sensor.When rotor turns to different location, Rotary transformer type position sensor can export different size of voltage,
The different location of rotor is embodied by different size of voltage.
After position sensor 50 gets the rotor-position of magneto 40, which is exported to TCU30's
Control unit.Such as in above-mentioned example, for the different location of the rotor of magneto 40, Rotary transformer type position sensor
Different size of voltage can be exported to the control unit of TCU30.It, can be according to rotor after TCU30 obtains the position of rotor
Position adaptably controls the phase of the voltage of output.Specifically, can be according to the output of Rotary transformer type position sensor
Voltage controls the phase and size of output voltage, which can be by having according to predetermined corresponding relationship
Body implementation environment determines.Such as in specific occasion, when the rotor of the magneto 40 of electric locomotive is in a certain position, lead to
Experimental data or theory analysis are crossed, the suitable voltage swing for being provided to rotor at this time and phase are determined, with this
Carry out the determination of corresponding relationship.Certainly, establishing TCU30 in the prior art can control the voltage swing and phase of its output
On the basis of, using rotor-position as the parameter for determining voltage-phase, technically belong to conventional operational means, herein no longer
It repeats.
Using magneto AC Drive circuit provided by the utility model, it is applied in electric locomotive, comprising: input
End is connect with pantograph, for receiving the circuit on side of overhead contact line of power grid power supply by pantograph；The output of primary side winding and circuit on side of overhead contact line
End connection, vice-side winding is connect with the input terminal of traction control unit TCU, for carrying out the transformer of voltage transformation；Output end
It is connect with the input terminal of magneto, the TCU for being powered to magneto；Magneto；It is arranged on magneto,
And connect with the control unit of TCU, the rotor-position of the magneto for will acquire is sent to TCU so that TCU according to turn
Sub- position control is input to the position sensor of the voltage-phase of magneto.
Position sensor is arranged on magneto in the AC Drive circuit of electric locomotive for the scheme of the application,
And connect with the control unit of TCU, when the rotor of magneto is located at different location, position sensor input it is different as a result,
Correspondingly, TCU can be exported according to position sensor as a result, control the voltage-phase for being input to magneto,
The revolving speed of magneto can be accurately controlled by also allowing for TCU in turn.Due to that can be carried out to the revolving speed of magneto
It is accurately controlled, the magneto AC Drive circuit for also allowing for the application can be applied in electric locomotive.Therefore, this Shen
Scheme please can be accurately controlled the phase of the input voltage of magneto, so that can be using forever in electric locomotive
The traction drive of magneto.
In a kind of specific embodiment of the utility model, pantograph includes the first pantograph and the second pantograph,
Circuit on side of overhead contact line 10 includes:
Circuit on side of overhead contact line main body；
First end is connect with the first pantograph, the first high-voltage circuitbreaker that second end is connect with circuit on side of overhead contact line main body；
First end is connect with the second pantograph, and the second height that second end is connect with the second end of the first high-voltage circuitbreaker is broken
Road device.
In electric locomotive, the failure of main transmission circuit is concentrated on the high-voltage circuitbreaker of circuit on side of overhead contact line 10, Fig. 2
In 4QF be high-voltage circuitbreaker, when high-voltage circuitbreaker works normally, can control the normal on-off of related circuit, if hair
Raw failure when needing to turn off under normal circumstances, is tended not to guarantee shutdown, consequently, it is possible to causing dependent failure, or even be caused
The serious consequences such as the damage of personnel and equipment.
In the scheme of the application, it is contemplated that high-voltage circuitbreaker is easy failure, provided with two high-voltage circuitbreakers to improve electricity
The reliability on road.Specifically, seeing Fig. 3, the first end of the first high-voltage circuitbreaker is connect with the first pantograph, second end and net
The connection of lateral circuit main body；The first end of second high-voltage circuitbreaker is connect with the second pantograph, second end and the first high-voltage circuitbreaker
Second end.Circuit on side of overhead contact line main body can be understood as the remainder that high-voltage circuitbreaker is removed in circuit on side of overhead contact line 10, master in Fig. 3
The connection structure for showing two high-voltage circuitbreakers does not show that remainder Fig. 3 of circuit on side of overhead contact line 10, Ke Yican
According to circuit on side of overhead contact line in the prior art.In this kind of embodiment, when a failure in two high-voltage circuitbreakers, as long as another
A high-voltage circuitbreaker normal turn-off, that is, may make circuit to turn off, and also just improve the reliable of the AC Drive circuit of electric locomotive
Property.
In the specific implementation, it is contemplated that vacuum high-pressure breaker have it is affected by environment small, performance safety, it is reliable and stable,
The open and close times of permission are more, are suitable for the advantages that noise is small when frequent operation and operation, the first high-voltage circuitbreaker and second high
Voltage breaker can be AC25kV vacuum high-pressure breaker.
In a kind of specific embodiment of the utility model, further includes:
The connection of the output end of first end and TCU30, second end are connect with the input terminal of magneto 40, for controlling first
The isolation circuit at end and conducting and the shutdown of second end.
The structure of isolation circuit can refering to Fig. 3, isolation circuit respectively with the output end of TCU30 and magneto 40
Input terminal connection, can control the conducting and shutdown of first end and second end, also just control TCU30 and magneto 40 it
Between electrical connection conducting and shutdown., by isolation circuit, TCU30 and permanent magnetism can be cut off in main transmission failure
Electrical connection between motor 40.Therefore, by the setting of isolation circuit, when main transmission failure, TCU30 is unable to control permanent magnetism
When the anode-cathode voltage of motor 40, it will be electrically connected cutting between TCU30 and magneto 40, can be held to avoid magneto 40
Continuous rotation and to failure caused by system inputing power.In general, one corresponding thereto can be set in each magneto 40
A isolation circuit.
In specifically setting isolation circuit, since the magneto 40 in electric locomotive is using the side of three-phase alternating-current powered
Formula, a therefore isolation circuit can be set three isolation contactors, each isolation contactor respectively with magneto 40 three
Connection all the way in circuitry phase.That is, corresponding isolation contactor can be passed through for each phase in three-phase circuit
Control the on-off on the road.It is of course also possible to for the isolation contactor of other quantity is arranged in an isolation circuit, such as be only arranged
One isolation contactor controls the conducting and shutdown of three-phase circuit by this isolation contactor simultaneously, has no effect on this
The implementation of utility model.
In a kind of specific embodiment of the utility model, further includes:
It is connect with magneto 40, the voltage sensor of the anode-cathode voltage for detecting magneto 40.
When applying in the transmission system of electric locomotive due to magneto 40, need to carry out the revolving speed of magneto 40
Be accurately controlled, and if main transmission failure, magneto 40 may be changed into generator so as to cause system
Failure.Therefore, in this embodiment, it can be set and connect with magneto 40, for detecting the end of magneto 40
The voltage sensor of voltage.When detecting the anode-cathode voltage exception of magneto 40, such as when beyond preset range, or
When higher than preset voltage threshold, the output of prompt information can be carried out.Specifically, can be by connecting with voltage sensor
Alarm carries out the output of prompt information, and alarm can be the devices such as warning light and buzzer, so as to magneto 40
Anode-cathode voltage when something goes wrong, can be found and be handled by staff in time.
In a kind of specific embodiment of the utility model, further includes: connect with magneto 40, for detecting permanent magnetism
The temperature sensor of the stator temperature of motor 40.In view of temperature information can degree of fatigue and failure to magneto 40
The certain embodiment of the carry out such as state, therefore in this kind of embodiment, setting is connect with magneto 40, for detecting magneto
The temperature sensor of 40 stator temperature, in order to be monitored to the state of magneto 40 from the angle of temperature.
Corresponding to magneto AC Drive circuit described above, the utility model additionally provides a kind of electric locomotive,
The electric locomotive may include the magneto AC Drive circuit in any of the above-described embodiment, herein not repeated explanation.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the technical solution of the utility model and its core concept.It should be pointed out that being led for this technology
For the those of ordinary skill in domain, without departing from the principle of this utility model, if can also be carried out to the utility model
Dry improvement and modification, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (10)
1. a kind of magneto AC Drive circuit, which is characterized in that be applied in electric locomotive, comprising:
Input terminal is connect with pantograph, for receiving the circuit on side of overhead contact line of power grid power supply by the pantograph；
Primary side winding is connect with the output end of the circuit on side of overhead contact line, and vice-side winding is connect with the input terminal of traction control unit TCU,
For carrying out the transformer of voltage transformation；
The connection of the input terminal of output end and magneto, the TCU for being powered to the magneto；
The magneto；
Setting is connect on the magneto, and with the control unit of the TCU, the magneto for will acquire
Rotor-position is sent to the TCU, so that the TCU is input to the electricity of the magneto according to rotor-position control
Press the position sensor of phase.
2. magneto AC Drive circuit according to claim 1, which is characterized in that the pantograph include first by
Pantograph and the second pantograph, the circuit on side of overhead contact line include:
Circuit on side of overhead contact line main body；
First end is connect with first pantograph, the first high-voltage circuitbreaker that second end is connect with the circuit on side of overhead contact line main body；
First end is connect with second pantograph, and second end is connect second high with the second end of first high-voltage circuitbreaker
Voltage breaker.
3. magneto AC Drive circuit according to claim 2, which is characterized in that first high-voltage circuitbreaker with
And second high-voltage circuitbreaker is AC25kV vacuum high-pressure breaker.
4. magneto AC Drive circuit according to claim 1, which is characterized in that the position sensor is rotation
Transformer type position sensor.
5. magneto AC Drive circuit according to claim 1, which is characterized in that further include:
First end is connect with the output end of the TCU, and second end is connect with the input terminal of the magneto, for controlling first
The isolation circuit at end and conducting and the shutdown of second end.
6. magneto AC Drive circuit according to claim 5, which is characterized in that the isolation circuit includes three
Be isolated contactor, each isolation contactor respectively with the connection all the way in the three-phase circuit of the magneto.
7. magneto AC Drive circuit according to claim 1, which is characterized in that further include:
It is connect with the magneto, the voltage sensor of the anode-cathode voltage for detecting the magneto.
8. magneto AC Drive circuit according to claim 5, which is characterized in that further include being passed with the voltage
Sensor connection sends prompt information when the voltage for detecting when the voltage sensor is higher than preset voltage threshold
Alarm.
9. magneto AC Drive circuit according to any one of claims 1 to 8, which is characterized in that further include: with institute
State magneto connection, the temperature sensor of the stator temperature for detecting the magneto.
10. a kind of electric locomotive, which is characterized in that including magneto AC Drive as described in any one of claim 1 to 9
Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187406.5U CN208515399U (en) | 2018-07-25 | 2018-07-25 | A kind of electric locomotive and its magneto AC Drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187406.5U CN208515399U (en) | 2018-07-25 | 2018-07-25 | A kind of electric locomotive and its magneto AC Drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208515399U true CN208515399U (en) | 2019-02-19 |
Family
ID=65332763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187406.5U Active CN208515399U (en) | 2018-07-25 | 2018-07-25 | A kind of electric locomotive and its magneto AC Drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208515399U (en) |
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2018
- 2018-07-25 CN CN201821187406.5U patent/CN208515399U/en active Active
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