CN107627862A - A kind of multithread convertor equipment - Google Patents
A kind of multithread convertor equipment Download PDFInfo
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- CN107627862A CN107627862A CN201610567928.7A CN201610567928A CN107627862A CN 107627862 A CN107627862 A CN 107627862A CN 201610567928 A CN201610567928 A CN 201610567928A CN 107627862 A CN107627862 A CN 107627862A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
The present invention discloses a kind of multithread convertor equipment, the equipment is connected to AC power and dc source by tractive transformer, AC circuit breaker and dc circuit breaker, and the equipment includes exchange pre-charge circuit, direct current pre-charge circuit, isolation conversion switch group, PWM rectifier, secondary resonance loop, intermediate dc loop, VVVF inverters and VVVF subordinate inverters.The present invention realizes the switching of a variety of power supply systems by isolation conversion switch group, it can be worked under two or more power supply system, solves the deficiency that existing traction convertor can only use single power supply system, the seamless connection of following main line railway and urban rail railway can be met at home, it can adapt to a variety of power supply systems of foreign railway simultaneously, trans-regional, international movement requirement is realized, adapts to the railway power supply standard on the ground such as the country, Africa, Europe.
Description
Technical field
The present invention relates to track traffic power supply unit field, more particularly, to a kind of multithread convertor equipment.
Background technology
Current domestic AC drive locomotive, motor-car and city rail vehicle, can only all run under a kind of line voltage standard,
The DC1500V/750V on AC25kV/50Hz or urban rail railway i.e. on main line.Domestic electric locomotive can only it is fixed,
Run under single power supply system, once locomotive needs to cross over different power supply systems, such as different alternating current and alternating current
Power section and different direct currents and powered by direct current section, or alternating current and powered by direct current section, will cause existing
There is electric locomotive to be unable to reach movement requirement as defined in state-owned railroads office, or even locomotive can not be run.
As domestic economy develops, it there is now the slitless connection that urban is try to main line railway and urban rail railway,
This demand current train traction converter plant can not meet application demand.In the countries and regions such as Europe and South Africa, power supply electricity
It is wider to flow standard scope, is the power supply systems such as AC25kV/50Hz, AC15kV/16.7Hz, DC3000V and DC1500V.The country is existing
There are the application needs that technology traction converter plant can not equally meet its multivoltage standard.This just needs to develop suitable for a variety of
Voltage form power supply traction converter plant, this kind of converter plant can be carried out automatically under different voltage forms main circuit and
Function switch, meet multithread train applies needs.
The content of the invention
The present invention is to overcome at least one defect described in above-mentioned prior art, there is provided a kind of multithread convertor equipment, energy
Enough to carry out main circuit and function switch automatically under different voltage forms, meet multithread train applies needs.
In order to solve the above technical problems, technical scheme is as follows：
A kind of multithread convertor equipment, the equipment are connected to friendship by tractive transformer, AC circuit breaker and dc circuit breaker
Power supply and dc source are flowed, the equipment includes exchange pre-charge circuit, direct current pre-charge circuit, isolation conversion switch group, PWM
Rectifier, secondary resonance loop, intermediate dc loop, VVVF inverters and VVVF subordinate inverters；
One termination AC power of the AC circuit breaker, the main limit winding of another termination tractive transformer of AC circuit breaker；
One termination dc source of the dc circuit breaker, the input of another termination direct current pre-charge circuit of dc circuit breaker, directly
Flow the secondary side winding of the output termination tractive transformer of pre-charge circuit；
The secondary side winding of tractive transformer connects the input of isolation conversion switch group, and the secondary side winding of tractive transformer, which connects, also to be passed through
Exchange pre-charge circuit connects the first input end of PWM rectifier, and the output of isolation conversion switch group terminates the second of PWM rectifier
Input, the electrode input end in the first output termination intermediate dc loop of PWM rectifier, the second output end of PWM rectifier
Connect the negative input in intermediate dc loop, the positive pole input in the input termination intermediate dc loop in the secondary resonance loop
End, the negative input in the output termination intermediate dc loop in secondary resonance loop, isolation conversion switch group are a variety of for realizing
The switching of power supply system, the output termination VVVF inverters in intermediate dc loop and the input of VVVF subordinate inverters, VVVF
The output end output three-phase alternating current supply traction electric machine of inverter, the output end output alternating current of VVVF subordinate inverters is machine
Car assistant load is powered.
In a kind of preferable scheme, the direct current pre-charge circuit includes a charging with pre-charge circuit is exchanged
Connect after tentaculum, a charging resistor and an electric current short circuit contactor, charging contactor and charging resistor series connection with electric current short circuit
Tentaculum is in parallel.
In a kind of preferable scheme, the isolation conversion switch group includes some isolation conversion switch, and isolation conversion is opened
Pass be made up of 3 main contact, auxiliary contact and controller parts, controller be used for control the unlatching of main contact and auxiliary contact and
Closure, isolation conversion switch group are used to realize the switching between a variety of power supply systems.
In a kind of preferable scheme, series resonant circuit that the secondary resonance loop is made up of inductance and electric capacity,
For absorbing secondary resonance electric current caused by PWM rectifier.
In a kind of preferable scheme, the intermediate dc loop includes Support Capacitor Cd, discharge resistance R5 and electric discharge electricity
Hinder in parallel with Support Capacitor Cd after R6, discharge resistance R5 and discharge resistance R6 connect.
In a kind of preferable scheme, the equipment also includes ground detection device, and ground detection device is passed by voltage
Sensor detects to the discharge resistance R5 and discharge resistance R6 of middle DC loop voltage.
In a kind of preferable scheme, the equipment also includes motion control unit, and motion control unit is respectively with isolating
Change-over switch group, PWM rectifier, VVVF inverters, VVVF subordinate inverters and traction electric machine connection, motion control unit
For being controlled in real time to PWM rectifier, VVVF inverters, VVVF subordinate inverters, isolation conversion switch group and traction electric machine
System.
In a kind of preferable scheme, the AC power is 25kV/50Hz or 15kV/16.7HZ AC powers, described
Dc source is 3kV or 1.5kV dc sources.
When being powered using 1.5kV dc sources, if power output is higher, input current can be relatively large, to equipment
Rated current requirement it is higher, caloric value is higher.Described PWM rectifier 7 uses four-quadrant rectifier, four-quadrant rectifier
Boost chopper is carried, voltage can be improved using boost chopper, reduce electric current, not increase the situation of additional devices
The lower stable operation for ensureing total system.
In a kind of preferable scheme, the PWM rectifier, VVVF inverters and VVVF subordinate inverters are provided with water
Air-cooled structure, meet it is high-power under the conditions of, the radiating condition of power component.
In a kind of preferable scheme, the equipment also includes detection means, and detection means includes some current sensors
And voltage sensor, current sensor are used for the input current for detecting PWM rectifier, VVVF inverters, VVVF subordinate inverters
Output current, and the chopper current of VVVF inverters；Voltage sensor is used for the input voltage for detecting direct current supply standard
With the voltage in intermediate dc loop.
Compared with prior art, the beneficial effect of technical solution of the present invention is：The present invention provides a kind of multithread unsteady flow and set
Standby, the equipment is connected to AC power and dc source by tractive transformer, AC circuit breaker and dc circuit breaker, described
Equipment include exchange pre-charge circuit, direct current pre-charge circuit, isolation conversion switch group, PWM rectifier, secondary resonance loop,
Intermediate dc loop, VVVF inverters and VVVF subordinate inverters.The present invention realizes a variety of power supplies by isolation conversion switch group
The switching of standard, can be worked under two or more power supply system, solve existing traction convertor can only use it is single
The deficiency of power supply system, can meet the seamless connection of following main line railway and urban rail railway at home, while can adapt to state
The outer a variety of power supply systems of railway, trans-regional, international movement requirement is realized, adapt to the railway power supply on the ground such as the country, Africa, Europe
Standard.
Brief description of the drawings
Fig. 1 is the circuit diagram of multithread convertor equipment of the present invention.
Circuit diagram when Fig. 2 is Alternating Current Power Supply standard 25kV/50Hz.
Circuit diagram when Fig. 3 is Alternating Current Power Supply standard 15kV/16.7HZ.
Circuit diagram when Fig. 4 is direct current supply standard DC3000V.
Circuit diagram when Fig. 5 is direct current supply standard DC1500V.
Fig. 6 is the circuit diagram of four-quadrant rectifier.
Fig. 7 is the circuit diagram of boost chopper.
Fig. 8 is the circuit structure diagram of pre-charge circuit.
Fig. 9 is the partial circuit diagram of exchange precharge unit and isolation conversion switch group.
Figure 10 is the circuit diagram of direct current pre-charge circuit.
Figure 11 is the circuit diagram in intermediate dc loop.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the chi of actual product
It is very little；
To those skilled in the art, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, a kind of multithread convertor equipment, the equipment is broken by tractive transformer 5, AC circuit breaker 1 and direct current
Road device 2 is connected to AC power and dc source, the equipment include exchange pre-charge circuit 4, direct current pre-charge circuit 3, every
Aided in from change-over switch group 6, PWM rectifier 7, secondary resonance loop 8, intermediate dc loop 9, VVVF inverters 10 and VVVF inverse
Become device 11；
One termination AC power of the AC circuit breaker 1, the main side of another termination tractive transformer 5 of AC circuit breaker 1 around
Group；One termination dc source of the dc circuit breaker 2, the input of another termination direct current pre-charge circuit 3 of dc circuit breaker 2
End, the secondary side winding of the output termination tractive transformer 5 of direct current pre-charge circuit 3；
The secondary side winding of tractive transformer 5 connects the input of isolation conversion switch group 6, and the secondary side winding of tractive transformer 5 connects also
The first input end of PWM rectifier 7, the output termination PWM rectifications of isolation conversion switch group 6 are connect by exchanging pre-charge circuit 4
Second input of device 7, the electrode input end in the first output termination intermediate dc loop 9 of PWM rectifier 7, PWM rectifier 7
The second output termination intermediate dc loop 9 negative input, the input termination intermediate dc in the secondary resonance loop 8 returns
The electrode input end on road 9, the negative input in the output termination intermediate dc loop 9 in secondary resonance loop 8, isolation conversion switch
Group 6 is used for the switching for realizing a variety of power supply systems, and the output termination VVVF inverters 10 and VVVF auxiliary in intermediate dc loop 9 are inverse
Become the input of device 11, the output end output three-phase alternating current supply traction electric machine 12 of VVVF inverters 10, VVVF auxiliary inversions
The output end output alternating current of device 11 is powered for vehicle assistant load.
The equipment also includes motion control unit, motion control unit respectively with isolation conversion switch group 6, PWM rectifications
Device 7, VVVF inverters 10, VVVF subordinate inverters 11 and traction electric machine 12 connect, and motion control unit is used for PWM rectifications
Device 7, VVVF inverters 10, VVVF subordinate inverters 11, isolation conversion switch group 6 and traction electric machine 12 are controlled in real time.
In the present embodiment, the AC power is 25kV/50Hz or 15kV/16.7HZ AC powers, the dc source
For 3kV or 1.5kV dc sources.
As shown in Fig. 2 during Alternating Current Power Supply standard AC25/50Hz, AC circuit breaker 1 is closed, disconnects dc circuit breaker 2, electricity
The voltage that net voltage is applicable through the decompression of tractive transformer 5 for convertor equipment.Close the disconnecting switch of isolation conversion switch group 6
QS1.1, QS1.3, QS1.11, other disconnecting switch disconnect, and two PWM rectifiers 7 are respectively from 2 secondary sides of tractive transformer 5
Winding power taking.The intermediate supports electric capacity Cd of DC loop 9 fills between the precharged cell pairs of secondary side output voltage of tractive transformer 5
Electricity.The single-phase alternating current of input is changed into galvanic current by PWM rectifier 7, its secondary resonance electric current exported（Frequency
For 100Hz）Absorbed through secondary resonance loop 8, its secondary resonant tank 8 is composed in series by reactor L1, electric capacity C1.Intermediate dc
Loop 9 carries out pressure stabilization function to DC voltage.Direct current is changed into the three-phase alternating current of variable ratio frequency changer pressure-variable by VVVF inverters 10
Electricity supply traction electric machine 12.The alternating current that direct current is changed into constant frequency and constant voltage is vehicle assistant load by VVVF subordinate inverters 11
Power supply.
Circuit closes AC circuit breaker 1 as shown in figure 3, during Alternating Current Power Supply standard AC15kV/16.7Hz, disconnects direct current and breaks
Road device 2, the voltage that line voltage is applicable through the decompression of tractive transformer 5 for convertor equipment.Close the isolation of isolation conversion switch group 6
QS1.2, QS1.4, QS1.10 and QS1.12 are switched, other disconnecting switch disconnect, and two PWM rectifiers 7 are respectively from traction voltage transformation
2 secondary side winding power takings of device 5.The centre of DC loop 9 between the precharged cell pairs of secondary side output voltage of tractive transformer 5
Support Capacitor Cd charges.The single-phase alternating current of input is changed into galvanic current by PWM rectifier 7, and it is exported secondary
Resonance current（Frequency is 33.4Hz）Absorbed through secondary resonance loop 8, its secondary resonant tank 8 by reactor L1, reactor L2,
Electric capacity C1, electric capacity C2 are formed, L1, L2 and C1 series connection, and C2 and C1 are in parallel.Intermediate dc loop 9 carries out voltage stabilizing work to DC voltage
With.The three-phase alternating current that direct current is changed into variable ratio frequency changer pressure-variable by VVVF inverters 10 supplies traction electric machine 12.VVVF is aided in
The alternating current that direct current is changed into constant frequency and constant voltage by inverter 11 is powered for vehicle assistant load.
In the present invention, turn to be better achieved between reply AC25kV/50Hz and AC15kV/16.7Hz power supply modes
Change, suitable secondary resonance electricity is selected according to the requirement such as ripple voltage of the arrangement space of capacitor, cost, secondary resonance loop
Hold C1, C2 and secondary resonance inductance L1, L2 parameter.
Circuit closes dc circuit breaker 2 as shown in figure 4, during direct current supply standard DC3000V, disconnects AC circuit breaker 1,
Disconnecting switch QS1.5, QS1.6, QS1.10, QS1.12, QS1.13 of isolation conversion switch group 6 are closed, other keep apart shut-off
Open, line voltage is directly accessed intermediate dc loop 9 after the secondary side winding of tractive transformer 5 and direct current pre-charge circuit 3.It is secondary
The reactor L1 of resonant tank 8, the secondary side winding of tractive transformer 5 and intermediate dc loop 9 Support Capacitor Cd are collectively formed
DC loop LC is filtered, and maintains the stabilization of intermediate loop.Direct current is changed into the three of variable ratio frequency changer pressure-variable by VVVF inverters 10
Cross streams electricity supply traction electric machine 12.The alternating current that direct current is changed into constant frequency and constant voltage by VVVF subordinate inverters 11 is auxiliary for locomotive
Help load supplying.
As shown in figure 5, during direct current supply standard DC1500V, dc circuit breaker 2 is closed, disconnects AC circuit breaker 1, closure
Disconnecting switch QS1.5, QS1.7, QS1.8, QS1.9, QS1.12, QS1.13 of isolation conversion switch group 6, other keep apart shut-off
Open, through direct current pre-charge circuit 3, the boost chopper being made up of the internal components of PWM rectifier 7 is boosted to line voltage
DC3000V flows into intermediate dc loop 9.The three-phase alternating current that direct current is changed into variable ratio frequency changer pressure-variable by VVVF inverters 10 supplies
To traction electric machine 12.The alternating current that direct current is changed into constant frequency and constant voltage by VVVF subordinate inverters 11 supplies for vehicle assistant load
Electricity.
As shown in fig. 6-7, when DC1500V powers, if power output is higher, input current can be relatively large, pair sets
The requirement of standby rated current is higher, and caloric value is higher.PWM rectifier 7 of the present invention uses four-quadrant rectifier, four-quadrant
Limit rectifier carries boost chopper, can improve voltage using boost chopper, reduce electric current, not increase extra device
Ensure the stable operation of total system in the case of part.
The present invention is in the case where exchange standard, by AC25kV/50Hz or AC15kV/16.7Hz power supplies, by tractive transformer 5 times
Output winding output electric energy in side is exported secondary side by adjusting the primary and secondary side turn ratio of tractive transformer 5 to subsequent conditioning circuit, AC15kV
Secondary side output voltage is identical when voltage is adjusted to power with AC25kV, is DC3600V through the rectification of PWM rectifier 7, is powered.
Under direct current DC3000V standards, inputing power is isolated after the charging complete of direct current pre-charge circuit 3 by corresponding
Change-over switch seals in the secondary side winding of tractive transformer 5, and DC3000V directly seals in intermediate dc loop 9, realizes direct current supply.
Under direct current DC1500V standards, inputing power is isolated after the charging complete of direct current pre-charge circuit 3 by corresponding
Change-over switch seals in the secondary side winding of tractive transformer 5, and boosting to DC3000V thereafter by boost chopper flows into intermediate dc time
Road 9, realizes direct current supply, and the boost chopper is formed by IGBT in PWM rectifier 7 and reverse fly-wheel diode.
Tractive transformer 5 is a kind of device of special voltage grade, meets that traction load changes violent particular/special requirement, leads
Draw the secondary coil of transformer 5 equipped with output winding, by converting the primary side of tractive transformer 5 and the secondary side turn ratio so that in difference
Contact net under the conditions of when powering, PWM rectifier 7 can obtain identical AC-input voltage.
As shown in figure 8, pre-charge circuit includes direct current pre-charge circuit 3 and exchanges pre-charge circuit 4, direct current precharge electricity
The middle electric capacity of DC loop 9 is charged come buffer starting with when exchanging pre-charge circuit 4 by receiving at the beginning for net voltage on road 3
The excessive influence of electric current.By a charging contactor 22 and charging resistor series connection 24, a upper electric current short circuit contactor 23 in parallel
Form.Cut-offfing for contactor is controlled by motion control unit, when traction convertor is pre-charged, closes charging contactor 22,
Turn-off current short circuit contactor 23, charges to intermediate capacitance.After intermediate capacitance voltage reaches preset value, transmission control is single
Member control charging contactor 22 disconnects, and closed path short circuit contactor 23, completes pre-charge process.
As shown in figure 9, under Alternating Current Power Supply standard, tractive transformer 5 has two groups of secondary side windings, the corresponding friendship of every group of output
Flow pre-charge circuit 4.First exchange pre-charge circuit 4 is made up of contactor KM1, KM2 and charging resistor R1, second exchange
Pre-charge circuit 4 is made up of contactor KM3, KM4 and charging resistor R2.When entering line precharge, closure charging contactor KM1,
KM3, turn-off current short circuit contactor KM2, KM4, under traction working condition, the secondary side winding for passing through tractive transformer 5 inputs AC970V
Single-phase alternating current, by PWM fairings, when motion control unit by detection means detect medium voltage be DC1200V ~
During DC1370V, contactor KM2, KM4 are closed（It is to control simultaneously between the two）, charging contactor KM1, KM3 are disconnected, completes one
Secondary intermediate capacitance is pre-charged link.The secondary side winding voltage and middle dc voltage of tractive transformer 5 can according to be actually needed into
Row setting.
As shown in Figure 10, under direct current standard, precharge unit connected by charging contactor KM5 and charging resistor R7 after with electricity
Stream short circuit contactor KM6 is composed in parallel.During precharge, contactor KM5 is closed, disconnects contactor KM6, electricity is supported to intermediate loop
Hold Cd to be charged, the high current for effectively reducing power network is impacted to caused by capacitor.The voltage of intermediate dc loop 9 reaches default
After value, closed path short circuit contactor KM6, charging contactor KM5 is disconnected, complete an intermediate capacitance precharge link.
The direct current that single-phase simple alternating current electric rectification is constant voltage can be passed through motion control unit pair by PWM rectifier 7
The pulse width modulation of IGBT gate poles, control current transformer net side alternating current size and phase, be close to sine wave and with
Line voltage makes the power factor of system close to 1 with mutually or anti-phase（Traction）Or -1（Braking）.
VVVF inverters 10 directly couple with intermediate loop, and the pulse width of IGBT gate poles is entered by motion control unit
Row modulation, electricity is drawn into the three-phase alternating current supply that described DC voltage inversion is voltage and frequency-adjustable under traction working condition
Machine 12；Under damped condition, three-phase alternating current electric rectification that the traction electric machine 12 is exported, inversion feed back to described traction and supplied
Electric system；Copped wave module is contained simultaneously in the inverter, in the case of shutdown or wheel-slip, copped wave electricity can be passed through
Resistance carries out the quick release and Overvoltage suppressing of intermediate energy, ensures the traffic safety of locomotive.
VVVF subordinate inverters 11 directly couple with intermediate loop, wide by pulse of the motion control unit to IGBT gate poles
Degree is modulated, and the DC inverter that the intermediate dc loop 9 is inputted is constant voltage and frequency or variable ratio frequency changer pressure-variable
Alternating current, be powered for locomotive assisting system.
PWM rectifier 7, VVVF inverters 10, VVVF subordinate inverters 11 are all by IGBT and reverse fly-wheel diode structure
Into.Term " IGBT " refers to igbt.One IGBT and one reverse fly-wheel diode composes in parallel a member
Part module.Two component modules are connected（Component module relative position is distinguished up and down）Form a bridge arm.The He of PWM rectifier 7
VVVF inverters 10 are made up of 4 bridge arms, and 3 bridge arms of VVVF inverters 10 are used to exporting three-phase alternating current, the 4th bridge arm
The IGBT of one component module protects as copped wave pipe, another component module merely with its backward dioded subparticipation, its
IGBT parts are standby.VVVF subordinate inverters 11 are made up of 3 bridge arms.Boost chopper is made up of 2 bridge arms.For the ease of mould
Block, standardized production, the PWM rectifier 7 and VVVF inverters 10 of same traction convertor use the device of identical parameters
Composition.Rectifier and inverter can realize exchange.Same converter topologies and control strategy, select dimension
IGBT, can be with the multithread current transformer in various voltage types and nearly all power bracket.For example, in exchange and directly
When flowing 750V, 1500V and 3000V, respectively using 1700V, 3300V, 6500V IGBT, if module uses water-cooling pattern, work
Make switching frequency up to 500 Hz.
PWM rectifier 7, VVVF inverters 10, VVVF subordinate inverters 11 use water-cooling structure, meet high-power condition
Under, the radiating condition of power component.
Motion control unit is the significant element of convertor equipment, the gathered data of its receiving detection device, at data
Equipment each several part is controlled after reason.It realizes that traction/brake control, logic control and the failure of the electric locomotive are protected
Shield, realize to PWM rectifier 7, VVVF inverters 10, VVF subordinate inverters, isolation conversion switch group 6, alternating current asynchronous traction electricity
The real-time control of machine 12, meet requirement of the locomotive in power performance, fault detect and processing etc..
Isolation conversion switch group 6 is responsible for the switching between four kinds of power supply systems, and it includes some isolation conversion switch, that is, connect
Switch is touched, contact-making switch is made up of 3 parts：Main contact（Normally opened contact and normally-closed contact）, auxiliary contact and controller composition,
Controller is used for unlatching and the closure for controlling main contact and auxiliary contact, and the controller of isolation conversion switch group 6 receives transmission control
The control signal of unit processed, respective closed/shut-off is carried out to its main contact and auxiliary contact and operated, so as to change traction convertor
Internal circuit.
The series resonance that secondary resonance loop 8 is made up of inductance and electric capacity, for absorbing two caused by PWM rectifier 7
Secondary resonance current.Discharge resistance R1, R2 are used to bleed off the remaining capacity on secondary resonance electric capacity.Under different power supply systems,
Motion control unit is controlled to isolation conversion switch, current loop corresponding to formation.In AC25kV/50Hz, by inductance
L1, electric capacity C1 are composed in series secondary resonance loop 8；In AC15kV/16.7Hz, by inductance L1, L2, L3, electric capacity C1, C2 series connection
Form secondary resonance loop 8.During DC3000V, transformer secondary side winding, secondary resonance reactor L1 and intermediate supports electric capacity Cd are total to
With DC loop LC filtering is formed, the stabilization of intermediate loop is maintained.During DC1500V, transformer secondary side winding, secondary resonance reactance
Device L1, L2, L3 and intermediate supports electric capacity Cd collectively form DC loop LC filtering, maintain the stabilization of intermediate loop.
Intermediate dc loop 9 is as shown in figure 11, includes intermediate supports electric capacity Cd, discharge resistance R5, R6, for by centre
Electricity remaining Support Capacitor Cd is bled off.Voltage sensor is used to detect medium voltage and middle ground detection voltage.
Discharge resistance R3, R4, R5, R6 are used to bleed off the remaining capacity in electric capacity, and traction current transformation is made in trouble hunting
Device is within safe voltage, ensures maintenance, the life security of tester.
The equipment also includes detection means, and detection means has current sensor, voltage sensor.Current sensor is used for
Check that input current, VVVF inverters 10, the output current of VVVF subordinate inverters 11 and the VVVF of DC PWM rectifier 7 are inverse
Become the chopper current of device 10.Voltage sensor is used for checking the input voltage of direct current supply standard, the electricity in intermediate dc loop 9
Pressure, middle ground detection voltage.The detected value of detection means collection is transferred to motion control unit, for analyzing current transformer entirety
Running status, and the operation such as regulated and controled according to analysis result, protected.
The equipment also includes ground detection device, two series electricals by voltage sensor to middle DC loop 9
Resistance R5, R6 are detected, and motion control unit is judged to realize.When traction power supply loop, intermediate dc loop 9 just ground connection or in
Between 9 negative ground connection of DC loop when, resistor neutral voltage imbalance, judged by hardware setting and software, diverse location connect
Ground waveform is compared, and failure judgement point, the self-protection of circuit is carried out by the mode of cutting off the electricity supply, while the resistance also can use
Make the release of intermediate loop Support Capacitor Cd remaining capacities.
The equipment also includes discharge indicating lamp（LED）, for observing intermediate loop Support Capacitor Cd, secondary resonance electric capacity
Discharge scenario, for reminding operating personnel in the case where lamp is bright, not carry out the maintenance activity of the converter plant.
Same or analogous label corresponds to same or analogous part；
Term the being given for example only property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to this hair
The restriction of bright embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in the present invention
Spirit and principle within all any modification, equivalent and improvement made etc., should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (10)
1. a kind of multithread convertor equipment, it is characterised in that the equipment is broken by tractive transformer, AC circuit breaker and direct current
Road device is connected to AC power and dc source, and the equipment includes exchange pre-charge circuit, direct current pre-charge circuit, isolation turn
Change switches set, PWM rectifier, secondary resonance loop, intermediate dc loop, VVVF inverters and VVVF subordinate inverters；
One termination AC power of the AC circuit breaker, the main limit winding of another termination tractive transformer of AC circuit breaker；
One termination dc source of the dc circuit breaker, the input of another termination direct current pre-charge circuit of dc circuit breaker, directly
Flow the secondary side winding of the output termination tractive transformer of pre-charge circuit；
The secondary side winding of tractive transformer connects the input of isolation conversion switch group, and the secondary side winding of tractive transformer, which connects, also to be passed through
Exchange pre-charge circuit connects the first input end of PWM rectifier, and the output of isolation conversion switch group terminates the second of PWM rectifier
Input, the electrode input end in the first output termination intermediate dc loop of PWM rectifier, the second output end of PWM rectifier
Connect the negative input in intermediate dc loop, the positive pole input in the input termination intermediate dc loop in the secondary resonance loop
End, the negative input in the output termination intermediate dc loop in secondary resonance loop, isolation conversion switch group are a variety of for realizing
The switching of power supply system, the output termination VVVF inverters in intermediate dc loop and the input of VVVF subordinate inverters, VVVF
The output end output three-phase alternating current supply traction electric machine of inverter, the output end output alternating current of VVVF subordinate inverters is machine
Car assistant load is powered.
2. multithread convertor equipment according to claim 1, it is characterised in that the direct current pre-charge circuit with exchange it is pre-
Charging circuit includes a charging contactor, a charging resistor and an electric current short circuit contactor, charging contactor and fills
It is in parallel with electric current short circuit contactor after electric resistant series.
3. multithread convertor equipment according to claim 1, it is characterised in that the isolation conversion switch group includes some
Isolation conversion switch, isolation conversion switch are made up of 3 main contact, auxiliary contact and controller parts, and controller is used to control
The unlatching of main contact and auxiliary contact and closure, isolation conversion switch group are used to realize the switching between a variety of power supply systems.
4. multithread convertor equipment according to claim 1, it is characterised in that the secondary resonance loop be by inductance with
The series resonant circuit of electric capacity composition, for absorbing secondary resonance electric current caused by PWM rectifier.
5. multithread convertor equipment according to claim 1, it is characterised in that the intermediate dc loop includes support electricity
Appearance Cd, discharge resistance R5 and discharge resistance R6, discharge resistance R5 and discharge resistance R6 are in parallel with Support Capacitor Cd after connecting.
6. multithread convertor equipment according to claim 5, it is characterised in that the equipment also includes earthing detection and filled
Put, ground detection device is carried out by voltage sensor to the discharge resistance R5 and discharge resistance R6 of middle DC loop voltage
Detection.
7. multithread convertor equipment according to claim 1, it is characterised in that it is single that the equipment also includes transmission control
Member, motion control unit respectively with isolation conversion switch group, PWM rectifier, VVVF inverters, VVVF subordinate inverters and
Traction electric machine connects, and motion control unit is used for PWM rectifier, VVVF inverters, VVVF subordinate inverters and traction electric machine
Controlled in real time, motion control unit is by controlling isolation conversion switch group to realize the switching of a variety of power supply systems.
8. multithread convertor equipment according to claim 1, it is characterised in that the AC power be 25kV/50Hz or
15kV/16.7HZ AC powers, the dc source are 3kV or 1.5kV dc sources.
9. multithread convertor equipment according to claim 1, it is characterised in that described PWM rectifier is that four-quadrant is whole
Device is flowed, four-quadrant rectifier is carried boost chopper, when being powered using 1.5kV dc sources, entered using boost chopper
Row boosting, drop stream.
10. according to the multithread convertor equipment described in claim any one of 1-10, it is characterised in that the equipment also includes inspection
Device is surveyed, detection means includes some current sensors and voltage sensor, and current sensor is used to detect the defeated of PWM rectifier
Enter electric current, VVVF inverters, the output current of VVVF subordinate inverters, and the chopper current of VVVF inverters；Voltage sensor
Device is used to detect the input voltage of direct current supply standard and the voltage in intermediate dc loop.
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| CN201610567928.7A CN107627862B (en) | 2016-07-19 | 2016-07-19 | Multi-flow system converter equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610567928.7A CN107627862B (en) | 2016-07-19 | 2016-07-19 | Multi-flow system converter equipment |
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| CN107627862B CN107627862B (en) | 2024-03-26 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819800A (en) * | 2018-06-26 | 2018-11-16 | 贾晶艳 | The processing method and processing device of the net side converter plant of multithread electric locomotive |
| WO2020119273A1 (en) * | 2018-12-11 | 2020-06-18 | 株洲中车时代电气股份有限公司 | Train and multi-current power conversion system thereof |
| CN111564843A (en) * | 2020-06-09 | 2020-08-21 | 中车青岛四方机车车辆股份有限公司 | Power supply circuit, method and equipment of railway vehicle and railway vehicle |
| CN111572414A (en) * | 2020-05-29 | 2020-08-25 | 中车青岛四方车辆研究所有限公司 | Multi-power-supply-system power supply system and power supply method |
| CN112339620A (en) * | 2020-10-28 | 2021-02-09 | 株洲中车时代电气股份有限公司 | Switching method and system for power supply modes of multi-system train and related components |
| CN112563055A (en) * | 2020-12-17 | 2021-03-26 | 中车株洲电机有限公司 | Switch cabinet for multi-system transformer |
| CN112670988A (en) * | 2021-01-11 | 2021-04-16 | 重庆中车长客轨道车辆有限公司 | Double-flow control device in trial run static adjustment line and control mode thereof |
| CN112721747A (en) * | 2021-01-27 | 2021-04-30 | 株洲中车时代电气股份有限公司 | Multi-standard power supply motor car traction current transformation system and control method |
| CN112810458A (en) * | 2019-11-15 | 2021-05-18 | 株洲中车时代电气股份有限公司 | Rescue circuit of train power supply system and train power supply system |
| CN112909949A (en) * | 2019-12-04 | 2021-06-04 | 中车株洲电力机车研究所有限公司 | Multi-system test power supply system and control method thereof |
| CN113135123A (en) * | 2021-04-21 | 2021-07-20 | 重庆中车长客轨道车辆有限公司 | Power supply switching method for rail transit test line |
| CN114024307A (en) * | 2021-11-05 | 2022-02-08 | 中车株洲电力机车有限公司 | Rail transit vehicle and multi-system conversion control method and system thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903202A (en) * | 2007-12-14 | 2010-12-01 | 邦巴尔迪尔运输有限公司 | Arrangement for supplying devices of a locomotive with electric energy and method for operating said arrangement |
| DE102010044322A1 (en) * | 2010-09-03 | 2012-03-08 | Bombardier Transportation Gmbh | Electrical power supply arrangement for drive devices of rail vehicles |
| CN103481787A (en) * | 2013-06-24 | 2014-01-01 | 长春轨道客车股份有限公司 | Contact system, power pack and energy storage device hybrid-powered CRH train traction system |
| CN104085311A (en) * | 2014-07-08 | 2014-10-08 | 株洲南车时代电气股份有限公司 | Multi-current-type current-changing system |
| CN104467455A (en) * | 2014-12-04 | 2015-03-25 | 株洲南车时代电气股份有限公司 | Multi-system converter device |
| CN205818956U (en) * | 2016-07-19 | 2016-12-21 | 株洲中车时代电气股份有限公司 | A kind of multithread convertor equipment |
-
2016
- 2016-07-19 CN CN201610567928.7A patent/CN107627862B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101903202A (en) * | 2007-12-14 | 2010-12-01 | 邦巴尔迪尔运输有限公司 | Arrangement for supplying devices of a locomotive with electric energy and method for operating said arrangement |
| DE102010044322A1 (en) * | 2010-09-03 | 2012-03-08 | Bombardier Transportation Gmbh | Electrical power supply arrangement for drive devices of rail vehicles |
| CN103481787A (en) * | 2013-06-24 | 2014-01-01 | 长春轨道客车股份有限公司 | Contact system, power pack and energy storage device hybrid-powered CRH train traction system |
| CN104085311A (en) * | 2014-07-08 | 2014-10-08 | 株洲南车时代电气股份有限公司 | Multi-current-type current-changing system |
| CN104467455A (en) * | 2014-12-04 | 2015-03-25 | 株洲南车时代电气股份有限公司 | Multi-system converter device |
| CN205818956U (en) * | 2016-07-19 | 2016-12-21 | 株洲中车时代电气股份有限公司 | A kind of multithread convertor equipment |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819800A (en) * | 2018-06-26 | 2018-11-16 | 贾晶艳 | The processing method and processing device of the net side converter plant of multithread electric locomotive |
| CN108819800B (en) * | 2018-06-26 | 2021-06-01 | 贾晶艳 | Processing method and device for network side converter of multi-system electric locomotive |
| WO2020119273A1 (en) * | 2018-12-11 | 2020-06-18 | 株洲中车时代电气股份有限公司 | Train and multi-current power conversion system thereof |
| CN111313718A (en) * | 2018-12-11 | 2020-06-19 | 株洲中车时代电气股份有限公司 | Train and train converter system with multiple systems |
| EP3842276A4 (en) * | 2018-12-11 | 2022-05-11 | Zhuzhou CRRC Times Electric Co., Ltd. | Train and multi-current power conversion system thereof |
| CN112810458B (en) * | 2019-11-15 | 2022-05-13 | 株洲中车时代电气股份有限公司 | Rescue circuit of train power supply system and train power supply system |
| CN112810458A (en) * | 2019-11-15 | 2021-05-18 | 株洲中车时代电气股份有限公司 | Rescue circuit of train power supply system and train power supply system |
| CN112909949A (en) * | 2019-12-04 | 2021-06-04 | 中车株洲电力机车研究所有限公司 | Multi-system test power supply system and control method thereof |
| CN111572414A (en) * | 2020-05-29 | 2020-08-25 | 中车青岛四方车辆研究所有限公司 | Multi-power-supply-system power supply system and power supply method |
| CN111572414B (en) * | 2020-05-29 | 2021-06-15 | 中车青岛四方车辆研究所有限公司 | Multi-power-supply-system power supply system and power supply method |
| CN111564843A (en) * | 2020-06-09 | 2020-08-21 | 中车青岛四方机车车辆股份有限公司 | Power supply circuit, method and equipment of railway vehicle and railway vehicle |
| CN112339620A (en) * | 2020-10-28 | 2021-02-09 | 株洲中车时代电气股份有限公司 | Switching method and system for power supply modes of multi-system train and related components |
| CN112339620B (en) * | 2020-10-28 | 2022-04-19 | 株洲中车时代电气股份有限公司 | Switching method and system for power supply modes of multi-system train and related components |
| CN112563055A (en) * | 2020-12-17 | 2021-03-26 | 中车株洲电机有限公司 | Switch cabinet for multi-system transformer |
| CN112563055B (en) * | 2020-12-17 | 2024-02-09 | 中车株洲电机有限公司 | Switch cabinet for multi-flow transformer |
| CN112670988A (en) * | 2021-01-11 | 2021-04-16 | 重庆中车长客轨道车辆有限公司 | Double-flow control device in trial run static adjustment line and control mode thereof |
| CN112721747A (en) * | 2021-01-27 | 2021-04-30 | 株洲中车时代电气股份有限公司 | Multi-standard power supply motor car traction current transformation system and control method |
| CN113135123A (en) * | 2021-04-21 | 2021-07-20 | 重庆中车长客轨道车辆有限公司 | Power supply switching method for rail transit test line |
| CN113135123B (en) * | 2021-04-21 | 2024-02-06 | 重庆中车长客轨道车辆有限公司 | Power supply switching method for rail transit test line |
| CN114024307A (en) * | 2021-11-05 | 2022-02-08 | 中车株洲电力机车有限公司 | Rail transit vehicle and multi-system conversion control method and system thereof |
| CN114024307B (en) * | 2021-11-05 | 2024-04-09 | 中车株洲电力机车有限公司 | Rail transit vehicle and multi-stream conversion control method and system thereof |
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