CN208367107U - Urban track traffic traction power supply dynamic model emulation test system - Google Patents
Urban track traffic traction power supply dynamic model emulation test system Download PDFInfo
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- CN208367107U CN208367107U CN201820536338.2U CN201820536338U CN208367107U CN 208367107 U CN208367107 U CN 208367107U CN 201820536338 U CN201820536338 U CN 201820536338U CN 208367107 U CN208367107 U CN 208367107U
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Abstract
The utility model embodiment discloses a kind of urban track traffic traction power supply dynamic model emulation test system, comprising: the main transformer station with the first capacity, the traction stepdown substation with the second capacity, track and to test run；Main transformer station is depressured the first alternating current, the second alternating current is exported to drawing stepdown substation, the capacity ratio of main transformer station is the first preset value in first capacity and tractive power supply system, and the capacity ratio that stepdown substation is drawn in the second capacity and tractive power supply system is the second preset value；Traction stepdown substation carries out decompression and AC-DC conversion to the second alternating current, and the first direct current of output is extremely to test run, so as to orbit under the driving of first direct current to test run.Carry out scientific experimentation research on physical model, it is available most true as a result, and the physical model establishment process it is simple, and then solve prior art simulation result inaccuracy, and the problem of entire modeling process complexity.
Description
Technical field
The utility model embodiment is related to technical field of vehicle more particularly to a kind of urban track traffic traction power supply dynamic model
Emulation test system.
Background technique
Urban track traffic is due to becoming with the advantages such as safety and comfort, passenger capacity is big, the speed of service is fast, energy conservation and environmental protection
Solve the problems, such as the preferred option of the urban congestion that gets worse.Tractive power supply system provides electric energy for urban track traffic, right
Its safe operation has important meaning.
For a long time, people have done a large amount of theoretical research to urban track traffic tractive power supply system, and system emulation is made
For a kind of important analysis and research means, play an important role in the course of the research.Current system emulation scheme includes
Digital Simulation and physical analogy.Digital Simulation, which is built upon a kind of pair of prototype system on the basis of mathematical equation and carries out emulation, grinds
The method studied carefully.For various physical phenomenons, the mathematical equation of its motion process is write out under certain assumed condition, by special
The Mathematical tool of door is solved, to obtain required result.For example, common RTDS (Real Time Digital
Simulator, real-time digital simulator) it is substantially software emulation, simulation result still relies on the accurate of model and parameter
Property.
It can be seen from the above, existing urban track traffic tractive power supply system emulation mode, simulation result inaccuracy, and
Entire modeling process is complicated.
Utility model content
The utility model embodiment provides a kind of urban track traffic traction power supply dynamic model emulation test system, existing to solve
There are technology simulation result inaccuracy, and the problem of entire modeling process complexity.
The utility model embodiment provides a kind of urban track traffic traction power supply dynamic model emulation test system, comprising: tool
There are the main transformer station of the first capacity, the traction stepdown substation with the second capacity, track and to test run, first capacity
It is the first preset value with the capacity ratio of main transformer station in tractive power supply system, in second capacity and the tractive power supply system
The capacity ratio for drawing stepdown substation is the second preset value；
The main transformer station is depressured the first alternating current, the second alternating current of output to the traction stepdown substation；
The traction stepdown substation carries out decompression and AC-DC conversion to second alternating current, exports the first direct current
To described to test run, so that described run under the driving of first direct current on the track to test run.
In a kind of possible implementation of the present embodiment, the test macro further includes direct current contact net, described to lead
Draw stepdown substation for the first direct current electricity output to the direct current contact net, it is described to test run and the direct current contact net
Contact, obtains the first direct current from the direct current contact net.
In the alternatively possible implementation of the present embodiment, the traction stepdown substation includes that can present device and extremely
A few Rectification Power Factor；
At least one described Rectification Power Factor is used to carry out second alternating current decompression and AC-DC conversion, output first
Direct current is to the direct current contact net；
The device that can present is for the direct current energy that generates when trying vehicle pull-in braking to be reverse into and described the
The AC energy of the same amplitude of two alternating currents, same-phase is input to the main transformer station and/or the traction stepdown substation.
In the alternatively possible implementation of the present embodiment, the Rectification Power Factor include rectifier transformer module, with
And the rectifier module being connect with the rectifier transformer module；
The rectifier transformer module is for being depressured second alternating current, and by the second alternating current after decompression
It exports to the rectifier module；
The rectifier module is used to the second alternating current after the decompression being converted into first direct current, and exports
First direct current is to the direct current contact net.
In the alternatively possible implementation of the present embodiment, the rectifier transformer module includes two and is arranged in parallel
Rectifier transformer, the rectifier module includes four rectifiers, and two output ends of each rectifier transformer are separately connected
One rectifier.
In the alternatively possible implementation of the present embodiment, the input terminal winding of the rectifier transformer is to prolong side three
Two output end windings of angle scheme, the rectifier transformer are respectively delta connection and star-star connection.
In the alternatively possible implementation of the present embodiment, the test macro further includes electric with the main transformer respectively
With the monitoring device that connect of the traction stepdown substation, the monitoring device is used to monitor the main transformer station and institute respectively
State the operating status in traction stepdown substation.
In the alternatively possible implementation of the present embodiment, the device that can present includes connecting with the monitoring device
Control cabinet, the Rectification Power Factor and the input terminal that can present device and output end are provided with voltage sensor and electric current and pass
Sensor, each voltage sensor and each current sensor are connect with the control cabinet；
The sensing signal of each voltage sensor and each current sensor is input to the control cabinet, the prison
It controls device and obtains the sensing signal from the control cabinet.
In the alternatively possible implementation of the present embodiment, in second alternating current and the tractive power supply system
The voltage class ratio for drawing the alternating current of stepdown substation input terminal is third preset value, first direct current and the traction
In power supply system draw stepdown substation output direct current voltage class ratio be the 4th preset value, first preset value,
Second preset value, the third preset value and the 4th preset value are the positive number less than 1.
In the alternatively possible implementation of the present embodiment, in the monitoring device and the tractive power supply system
Monitoring device is consistent, and the control cabinet is consistent with the control cabinet in the tractive power supply system.
The effect of technical solution provided by the embodiment of the utility model are as follows:
By setting the main transformer station with the first capacity, the traction stepdown substation with the second capacity, track and to
The capacity ratio of main transformer station is the first preset value in test run, the first capacity and tractive power supply system, and the second capacity and traction supply
The capacity ratio that stepdown substation is drawn in electric system is the second preset value；Main transformer station is depressured the first alternating current, output
Second alternating current is to drawing stepdown substation；Traction stepdown substation carries out decompression and AC-DC conversion to the second alternating current, defeated
The first direct current is extremely to test run out, so as to orbit under the driving of the first direct current to test run.That is this implementation
Example carries out scientific experimentation research on physical model, available most true as a result, and the physical model establishment process letter
It is single, and then solve prior art simulation result inaccuracy, and the problem of entire modeling process complexity.
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
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is showing for the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment one provides
It is intended to；
Fig. 2 is the electrical schematics of main transformer station in the present embodiment one；
Fig. 3 is showing for the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment two provides
It is intended to；
Fig. 4 is the block diagram that stepdown substation is drawn in the utility model embodiment two；
Fig. 5 is the electrical schematics that stepdown substation is drawn in the utility model embodiment two；
Fig. 6 is the block diagram of Rectification Power Factor in the utility model embodiment two；
Fig. 7 is the electrical schematics of Rectification Power Factor in the utility model embodiment two；
Fig. 8 is the block diagram that device can be presented in the utility model embodiment two；
Fig. 9 is the electrical schematics that device can be presented in the utility model embodiment two；
Figure 10 is the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment three provides
Schematic diagram.
Description of symbols:
10: main transformer station；
20: traction stepdown substation；
30: track；
40: to test run；
50: direct current contact net；
21: device can be presented；
22: Rectification Power Factor；
220: rectifier transformer module；
230: rectifier module；
221: rectifier transformer；
231: rectifier；
211: four-quadrant rectifier；
212: transformer can be presented；
60: monitoring device；
213: control cabinet.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Urban track traffic traction power supply dynamic model emulation test system provided by the embodiment of the utility model is suitable for ground
The urban rail transit vehicles such as iron, lorry, high-speed rail, motor-car.The present embodiment is by establishing urban track traffic tractive power supply system
Physical model, which is capable of the dynamic changing process of accurate simcity rail traffic tractive power supply system, in object
Manage and carry out scientific experimentation research on model, it is available most true as a result, and the physical model establishment process it is simple, and then solve
The prior art of having determined simulation result inaccuracy, and the problem of entire modeling process complexity.
The technical solution of the utility model is described in detail with specifically embodiment below.These are specific below
Embodiment can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.
Fig. 1 is showing for the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment one provides
It is intended to, Fig. 2 is the electrical schematics of main transformer station in the present embodiment one.This as shown in Figure 1, the present embodiment urban track traffic
Traction power supply dynamic model emulation test system (hereinafter referred to as test macro) includes: main transformer station 10 with the first capacity, has
The traction stepdown substation 20 of second capacity, track 30 and to test run 40, wherein the first capacity and tractive power supply system are (i.e.
Practical tractive power supply system) in the capacity ratio of main transformer station be the first preset value, the second capacity and tractive power supply system are (i.e. practical
Tractive power supply system) in traction stepdown substation capacity ratio be the second preset value.
Main transformer station 10 is depressured the first alternating current, the second alternating current of output to traction stepdown substation 20.
Traction stepdown substation 20 carries out decompression and AC-DC conversion to the second alternating current, and the first direct current of output is to wait try
Vehicle 40, so as to be run on track 30 under the driving of the first direct current to test run 40.
It should be noted that the structure of the practical tractive power supply system of the test macro and urban track traffic of the present embodiment
Unanimously, the parameter (such as voltage class, power, transformer parameter) of each module and practical tractive power supply system and in test macro
It designs by a certain percentage.For example, the capacity ratio of main transformer station is the first preset value in the first capacity and practical tractive power supply system,
The capacity ratio that stepdown substation is drawn in second capacity and practical tractive power supply system is the second preset value.
Wherein, each connection in the present embodiment is electrical connection.
Specifically, as shown in Figure 1, the test macro of the present embodiment includes main transformer station 10, traction stepdown substation 20, rail
Road 30 and to test run 40, wherein the output end of main transformer station 10 connect with the input terminal in traction stepdown substation 20, and traction is dropped
The output end of pressure electric substation 20 is connect with to test run 40, for being placed on track to test run 40 to power to test run 40
On 30.
During actual test, the first alternating current is inputted to main transformer station 10, main transformer station 10 is to first alternating current
Carry out decompression processing, the second alternating current of output to traction stepdown substation 20.Draw the 20 pairs of inputs in stepdown substation second is handed over
Galvanic electricity carries out decompression processing, then carries out alternating current-direct current AC/DC conversion, the second alternating current after decompression is converted into the first direct current
Electricity, and by the first direct current electricity output to test run 40.It is in-orbit under the driving of first direct current to test run 40 in this way
It is run on road 30, and then realizes the analog simulation to practical tractive power supply system.
The rated capacity (i.e. rated power) of the main transformer station 10 of the present embodiment is the first capacity, draws stepdown substation 20
Rated capacity be the second capacity, wherein the first capacity and the second capacity are preset value, specifically can be according to test run 40
Working condition determine.
In a kind of example, the capacity ratio of main transformer station in the first capacity and practical tractive power supply system of main transformer station 10
For the first preset value.
For example, the ratio of the first capacity of the main transformer station 10 of the present embodiment and the capacity of practical main transformer station 10 is 1:
2000.It is assumed that practical 10 capacity of main transformer station is 2*40MW, the first capacity of the main transformer station 10 in test macro is 2*
40MW/2000=2*20kW.
Second capacity and practical tractive power supply system in stepdown substation 20 are drawn in a kind of example, in this test macro
The ratio of the capacity in middle traction stepdown substation 20 is the second preset value.
For example, the capacity of second capacity in the traction stepdown substation 20 of the present embodiment and practical traction stepdown substation 20
Ratio be 1:2000.It is assumed that the capacity in practical traction stepdown substation 20 is 4MW, then in the test macro of the present embodiment
Traction stepdown substation 20 the second capacity be 4MW/2000=2kW.
Wherein, the first preset value and the second preset value are the positive number less than 1, i.e. the first preset value and the second preset value are equal
Greater than 0 less than 1.
Optionally, the second alternating current of traction 20 input terminal of stepdown substation and practical traction power supply system in this test macro
The voltage class ratio that the alternating current of 20 input terminal of stepdown substation is drawn in system is third preset value, which is greater than 0
Less than 1.
For example, the voltage class for drawing the second alternating current of 20 input terminal of stepdown substation in practical tractive power supply system is
35kV/10kV, wherein the corresponding third preset value of 35kV voltage class is 1:87.5, and the corresponding third of 10kV voltage class is default
Value is 1:25.At this point, the second alternating current for drawing 20 input terminal of stepdown substation in this test macro is 400V.
Optionally, the first direct current of traction 20 output end of stepdown substation and practical traction power supply system in this test macro
The voltage class ratio that the direct current of 20 output end of stepdown substation is drawn in system is the 4th preset value, and the 4th preset value is greater than 0
Less than 1.
For example, the voltage class for drawing the first direct current of 20 output end of stepdown substation in practical tractive power supply system is
1500V/750V, wherein the 4th preset value is 1:10.At this point, drawing the first of 20 output end of stepdown substation in this test macro
Direct current is 150V/75V.
It can be seen from the above, the first capacity of the main transformer station 10 of the present embodiment is far smaller than master in practical tractive power supply system
The capacity of electric substation 10, the second capacity for drawing stepdown substation 20, which is also far smaller than in practical tractive power supply system, draws decompression
The capacity of electric substation 20.And the small main transformer station 10 of capacity and traction stepdown substation 20 is small in size, it is cheap, and then make
The entire test system structure for obtaining the present embodiment is compact, and testing cost is low.
Simultaneously as the capacity of each device of the present embodiment is small, it is easily achieved in entire test process, and highly-safe,
Convenient for test is repeated.
Further, as shown in Figure 1, the test macro of the present embodiment is arranged using building block system, convenient for teaching demonstration and
Scientific research, meanwhile, facilitate the adjustment of the variation and line parameter circuit value of realizing structure, to explore novel, more preferably control system.
It should be noted that the test macro of the present embodiment can test different model to test run 40, improve survey
The versatility of test system.Specifically, according to the parameter to test run 40, the parameter of each device in test macro is changed, to realize
Accurate measurement to various practical tractive power supply systems.
Meanwhile the track 30 of the present embodiment can also be replaced, and then realize under different line conditions, to traction power supply system
The accurate measurement of the operating status of system.
Optionally, the present embodiment can also be more for controlling the control algolithm of main transformer station 10, traction stepdown substation 20
It changes, and then realizes the test to different control algolithms, and select optimal control algolithm according to test result
The test macro of the present embodiment can apply the design phase in new car or new line, test through this embodiment
System simulation treats examination to the operating condition of test run 40 and the operating status of tractive power supply system, and according to test result
Vehicle 40 or tractive power supply system improve.
The test macro of the present embodiment can be used for scientific research, specifically, test macro through this embodiment, mould
The various operating conditions and malfunction of quasi- practical tractive power supply system, so as to the protective device and control in tractive power supply system
The function and performance of device processed are examined, to ensure the reliability service of protective device and control device at the scene.
Optionally, the test macro of the present embodiment can be used for Computer Aided Design, become particular by each ginseng to power supply system
Data acquisition, transmission, storage and the analysis of amount, research tractive power supply system energy stream rule, is the power transformation of tractive power supply system
Institute's layout optimization, power and overload capacity determine that providing accurate data supports, provides for the standard revision of tractive power supply system
Reference frame provides technical support for operation, construction and design, to realize the operation network of entire operating line or even entire city
Optimized System Design is realized in the complex optimum of the energy utilization of network and the reduction of construction cost.
Optionally, the test macro of the present embodiment can be used for technical training, specifically, in conjunction with practitioner related in industry
Technical training demand, simulate the mechanism and function of true tractive power supply system completely using the test macro of the present embodiment, be
The theoretical basis of practitioner and skills training provide platform, at low cost, securely and reliably, easy to use, quickly enter convenient for employee
Door is on duty.
Optionally, the test macro of the present embodiment can be used for imparting knowledge to students, specifically, in current teaching process, none
Complete matter simulating system lacks the teaching of the various courses of student and interknits.The test macro of the present embodiment is special
Industry course learning provides the bridge of a connection between theory and practice, provides experiment porch, is the important supplement of current teaching link.
Urban track traffic traction power supply dynamic model emulation test system provided by the embodiment of the utility model has by setting
There are the main transformer station of the first capacity, the traction stepdown substation with the second capacity, track and to test run；The main transformer station
First alternating current is depressured, the second alternating current of output to the traction stepdown substation；The traction stepdown substation pair
Second alternating current carries out decompression and AC-DC conversion, exports the first direct current to described to test run, so that described wait try
Vehicle is run on the track under the driving of first direct current.That is the present embodiment carries out science on physical model
Experimental study, it is available most true as a result, and the physical model establishment process it is simple, and then solve prior art emulation
As a result inaccurate, and the problem of entire modeling process complexity.
Fig. 3 is showing for the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment two provides
It is intended to, Fig. 4 is the block diagram that stepdown substation is drawn in the utility model embodiment two, and Fig. 5 is in the utility model embodiment two
Draw the electrical schematics in stepdown substation.
On the basis of the above embodiments, as shown in figure 3, the test macro of the present embodiment further includes direct current contact net 50,
The traction stepdown substation 20 is described to test run 40 and institute by the first direct current electricity output to the direct current contact net 50
The contact of direct current contact net 50 is stated, obtains the first direct current from the direct current contact net 50.
In a kind of possible implementation of the present embodiment, as shown in Figure 4 and Figure 5, traction stepdown substation 20 includes
Device 21 and at least one Rectification Power Factor 22 can be presented.
Wherein, at least one described Rectification Power Factor 22 is used to carry out second alternating current decompression and AC-DC conversion,
The first direct current is exported to direct current contact net 50.In this way, being contacted to test run 40 with the direct current contact net 50, contacted from the direct current
The first direct current is obtained on net 50, and is run under the driving of first direct current.
The present embodiment to the quantity of traction stepdown substation 20 Rectification Power Factor 22 that includes with no restrictions, with specific reference to reality
It needs to set, when including multiple Rectification Power Factors 22, each Rectification Power Factor 22 is to be arranged in parallel.For example, as shown in figure 5, one is led
Drawing stepdown substation 20 may include 2 Rectification Power Factors 22.
Urban track traffic at present generallys use AC Drive i.e. VVVF (Variable Voltage and Variable
Frequency) motor train unit train, braking are generally electric braking (i.e. regenerative braking, resistive braking) and air damping two-stage.Column
In the process of running, since station spacing is shorter, frequently, braking energy is considerable, can achieve traction for launch train, braking for vehicle
40% or more of energy, and partial regeneration braking energy (generally 20%~80%, according to train operation density and zone distance
It is different and different) can be by power supply section Adjacent vehicles same on route and the absorption of Ben Che auxiliary system, remainder will main quilt
The absorption resistance of train is consumed in a manner of generating heat or is absorbed by the absorption plant on route.When train departure density is lower
When, regeneration energy will be substantially reduced by the probability that other vehicles absorb.For example, when train departure interval is greater than 10min, regeneration
The absorbed probability of braking energy is almost nil, and most braking energies will be reproduced energy absorbing device absorption at this time, becomes
At thermal energy and to distributing outside four, this not only wastes energy, and also increase stand in air-conditioning blower unit burden, and make to build
Expense and operating cost increase.
In consideration of it, the present embodiment setting can present device 21, this can present device 21 for will be when test run 40 is entered the station and braked
The direct current energy of generation is reverse into the AC energy with the same amplitude of the second alternating current, same-phase, and is input to the main transformer station
10 and/or traction stepdown substation 20.
Optionally, the device 21 that can present of the present embodiment can be middle pressure energy feedback device 5.
Fig. 6 is the block diagram of Rectification Power Factor in the utility model embodiment two, and Fig. 7 is to rectify in the utility model embodiment two
The electrical schematics of unit.
As shown in Figure 6 and Figure 7, above-mentioned Rectification Power Factor 22 may include rectifier transformer module 220 and and rectifier transformer
The rectifier module 230 that device module 220 connects.
Wherein, rectifier transformer module 220 is handed over for being depressured to second alternating current, and by second after decompression
Galvanic electricity is exported to the rectifier module 230.
Rectifier module 230 is used to the second alternating current after the decompression being converted into first direct current, and exports
First direct current is to the direct current contact net.
It illustrates, it is assumed that the voltage for the second alternating current that main transformer station 10 exports is 400V, then rectifier transformer module
220 pair of second alternating current is depressured, and is depressured to 106V, and 106V is exchanged electricity output to rectifier module 230, rectifier mould
106V alternating current is converted into direct current by block 230, and the first direct current of output is 106V* √ 2=150V.
Optionally, the Rectification Power Factor 22 of the present embodiment is 24 pulse wave rectifier units.
With continued reference to shown in Fig. 6 and Fig. 7, the rectifier transformer module 220 of the present embodiment is arranged in parallel whole including two
Convertor transformer 221, the rectifier module 230 include four rectifiers 231, two output ends of each rectifier transformer 221
It is separately connected a rectifier 231.
Specifically, as shown in Figures 5 to 7, each rectifier transformer 221 includes an input terminal and two output ends,
In, the input terminal of each rectifier transformer 221 is connect with the output end of main transformer station 10, each rectifier transformer 221 it is every
A output end connects a rectifier 231, at this point, four rectifiers 231 are connected in parallel, the voltage of four rectifiers 231 output
Value be the first direct current, i.e., the 150V of above-mentioned example.
Optionally, the rectifier transformer 221 of the present embodiment can be 12 pulse wave axial direction double bundle formula traction rectifier transformers,
The rectifier 231 of the present embodiment can be full wave diode rectifier bridge.
Optionally, as shown in fig. 7, the input terminal winding of the rectifier transformer 221 of the present embodiment is extend-triangle wiring,
Two output end windings of the rectifier transformer 221 are respectively delta connection and star-star connection.
At this point, the voltage of the output end of each rectifier transformer 221 forms 30 ° of difference, two rectifier transformers 221
Input terminal winding is all made of extend-triangle connection, respectively phase shift ± 7.5 °, and the four of two rectifier transformers 221 formed in this way
15 ° of phases of line voltage phasor mutual deviation of sleeving valve side winding run in DC side parallel respectively after full-wave rectification, form 24 arteries and veins
Wave commutation system.
Optionally, the rated capacity of each rectifier 231 is identical in the present embodiment, and divides equally traction stepdown substation 20
Second capacity, such as second capacity in traction stepdown substation 20 is 2kW, traction stepdown substation 20 includes 4 rectifiers
231, then the rated capacity of each rectifier 231 is 2kW/4=500W.
Fig. 8 is the block diagram that device can be presented in the utility model embodiment two, and Fig. 9 is that can present in the utility model embodiment two
The electrical schematics of device.
As shown in Figure 8 and Figure 9, the present embodiment can present device 21 include four-quadrant rectifier 211 and with the four-quadrant
What rectifier 211 connected can present transformer 212.
Optionally, when the second capacity of the traction decompression power transformation of the present embodiment is 2kW, then the four-quadrant of the present embodiment is whole
The technical parameter for flowing device 211 is as follows:
Rated power: 1kW；
DC rated voltage: 150V/75V；
Functions of the equipments: inversion, rectification, reactive compensation；
Power device: IGBT intelligent power module；
Ac rated voltage: AC3 Ф × 45V；
Exchange rated frequency: 50Hz；
Power factor: > 0.99；
Inverter efficiency: > 98% (under rated power)；
Current harmonic distortion rate: < 3% (meeting national standard GB/T 14549-1993).
The urban track traffic traction power supply dynamic model emulation test system of the utility model embodiment, by being depressured in traction
Setting can present device and Rectification Power Factor in electric substation, and rectifier transformer module and rectifier module are arranged in Rectification Power Factor, with
The traction stepdown substation in practical tractive power supply system is simulated, and then improving entire test macro with practical traction power supply
The consistency of system, so that test macro through this embodiment accurately tests tractive power supply system.
Figure 10 is the urban track traffic traction power supply dynamic model emulation test system that the utility model embodiment three provides
Schematic diagram, on the basis of the above embodiments, the test macro of the present embodiment can also include respectively with main transformer station and traction
The monitoring device 60 of stepdown substation connection, the monitoring device 60 for monitoring the main transformer station 10 and the traction respectively
The operating status in stepdown substation 20.In this way, user can observe main transformer station 10 and traction in real time by monitoring device 60
The operating status in stepdown substation 20.
As shown in Figure 10, the device 21 that can present of the present embodiment further includes the control cabinet being electrically connected with the monitoring device 60
213, the Rectification Power Factor 22 and the input terminal that can present device 21 and output end are provided with voltage sensor and electric current passes
Sensor, each voltage sensor and each current sensor are connect with the control cabinet 213.
The sensing signal of each voltage sensor and each current sensor is input to the control cabinet 213, the monitoring dress
It sets 60 and obtains the sensing signal from the control cabinet 213.
Specifically, AC voltage sensor and AC current sensor is arranged in the input terminal in each Rectification Power Factor 22, use
In the alternating voltage and alternating current of the input terminal of measurement Rectification Power Factor 22.In the output end of each Rectification Power Factor 22, direct current is set
Voltage sensor and DC current sensor, for measuring the DC voltage and DC current of the output end of Rectification Power Factor 22.
It is corresponding, in the input terminal setting direct current voltage sensor and DC current sensor that can present device 21, for surveying
Amount can present the DC voltage and DC current of the input terminal of device 21.It is sensed in the output end setting alternating voltage of Rectification Power Factor 22
Device and AC current sensor, for measuring the alternating voltage and alternating current that can present the output end of device 21.
Each sensor is connect with the control cabinet 213 that can be presented in device 21, and controller is connect with monitoring device 60.In this way, each
The sensing signal that sensor will test is input to the control cabinet 213, and monitoring device 60 is sensed from the control cabinet 213
Signal, and show.
Optionally, the test macro of the present embodiment is additionally provided with the transformer temperature controller connecting with monitoring device 60, the change
Depressor temperature controller is used to detect the temperature of each transformer, and the temperature that will test is sent to monitoring device 60, so that monitoring fills
Set 60 displays.
Optionally, the monitoring device 60 of the present embodiment is also used to monitor harmonic wave, power factor, the function of rectifier transformer 221
Rate (active and reactive, zero sequence, negative phase-sequence) etc..
In the present embodiment, monitoring device 60 and other equipment pass through Ethernet, RS485, the Modbus (bus of industry spot
Agreement) etc. communication.Wherein ethernet communication is for realizing the upload of magnanimity monitoring data, and RS485 communication is for realizing monitoring dress
Set 60 to control cabinet 213 control instruction transmit, Modbus communication for upper layer PSCADA (Power Supervisory
Control And Data Acquisition, electric power monitoring system) system data exchange.
Optionally, building for the ease of test macro, the then control cabinet 213 of the present embodiment and practical tractive power supply system
In control cabinet 213 it is consistent, the monitoring device 60 in monitoring device 60 and practical tractive power supply system is unanimously.
The utility model embodiment urban track traffic traction power supply dynamic model emulation test system passes through setting monitoring dress
It sets, operating status of the monitoring device for monitoring main transformer station respectively and traction stepdown substation is convenient to carry out people with user
Machine interaction, improves the intelligence of test macro.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of urban track traffic traction power supply dynamic model emulation test system characterized by comprising with the first capacity
Main transformer station, the traction stepdown substation with the second capacity, track and to test run, first capacity and traction power supply system
The capacity ratio of Tong Zhong main transformer station is the first preset value, traction decompression power transformation in second capacity and the tractive power supply system
Capacity ratio be the second preset value；
The main transformer station is depressured the first alternating current, the second alternating current of output to the traction stepdown substation；
The traction stepdown substation carries out decompression and AC-DC conversion, the first direct current of output to institute to second alternating current
It states to test run, so that described run under the driving of first direct current on the track to test run.
2. test macro according to claim 1, which is characterized in that further include direct current contact net, the traction decompression becomes
Electricity is described to contact to test run with the direct current contact net by the first direct current electricity output to the direct current contact net, from
The first direct current is obtained on the direct current contact net.
3. test macro according to claim 2, which is characterized in that the traction stepdown substation include can present device and
At least one Rectification Power Factor；
At least one described Rectification Power Factor is used to carry out second alternating current decompression and AC-DC conversion, exports the first direct current
Electricity is to the direct current contact net；
The device that can present is handed over for being reverse into the direct current energy wait try to generate when vehicle pull-in braking with described second
The AC energy of the same amplitude of galvanic electricity, same-phase is input to the main transformer station and/or the traction stepdown substation.
4. test macro according to claim 3, which is characterized in that the Rectification Power Factor include rectifier transformer module,
And the rectifier module being connect with the rectifier transformer module；
The rectifier transformer module exchanges electricity output for being depressured to second alternating current, and by second after decompression
To the rectifier module；
The rectifier module is used to for the second alternating current after the decompression being converted into first direct current, and described in output
First direct current is to the direct current contact net.
5. test macro according to claim 4, which is characterized in that the rectifier transformer module includes that two parallel connections are set
The rectifier transformer set, the rectifier module include four rectifiers, and two output ends of each rectifier transformer connect respectively
Connect a rectifier.
6. test macro according to claim 5, which is characterized in that the input terminal winding of the rectifier transformer is to prolong side
Two output end windings of delta connection, the rectifier transformer are respectively delta connection and star-star connection.
7. test macro according to claim 3, which is characterized in that further include respectively with the main transformer station and described lead
Draw the monitoring device of stepdown substation connection, the monitoring device for monitoring the main transformer station and traction decompression respectively
The operating status of electric substation.
8. test macro according to claim 7, which is characterized in that the device that can present includes connecting with the monitoring device
The control cabinet connect, the Rectification Power Factor and the input terminal that can present device and output end are provided with voltage sensor and electric current
Sensor, each voltage sensor and each current sensor are connect with the control cabinet；
The sensing signal of each voltage sensor and each current sensor is input to the control cabinet, the monitoring dress
It sets from the control cabinet and obtains the sensing signal.
9. test macro according to claim 1, which is characterized in that second alternating current and the tractive power supply system
The voltage class ratio of the alternating current of middle traction stepdown substation input terminal is third preset value, and first direct current is led with described
The voltage class ratio for drawing the output direct current in traction stepdown substation in power supply system is the 4th preset value, and described first is default
Value, second preset value, the third preset value and the 4th preset value are the positive number less than 1.
10. test macro according to claim 8, which is characterized in that the monitoring device and the tractive power supply system
In monitoring device it is consistent, the control cabinet is consistent with the control cabinet in the tractive power supply system.
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| CN201820536338.2U CN208367107U (en) | 2018-04-16 | 2018-04-16 | Urban track traffic traction power supply dynamic model emulation test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279350A (en) * | 2018-04-16 | 2018-07-13 | 北京千驷驭电气有限公司 | Urban track traffic traction power supply dynamic model emulation test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279350A (en) * | 2018-04-16 | 2018-07-13 | 北京千驷驭电气有限公司 | Urban track traffic traction power supply dynamic model emulation test system |
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