CN104340085B - A kind of urban rail medium-pressure type with circulation elimination function can present method of supplying power to and device - Google Patents
A kind of urban rail medium-pressure type with circulation elimination function can present method of supplying power to and device Download PDFInfo
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- CN104340085B CN104340085B CN201410585665.3A CN201410585665A CN104340085B CN 104340085 B CN104340085 B CN 104340085B CN 201410585665 A CN201410585665 A CN 201410585665A CN 104340085 B CN104340085 B CN 104340085B
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Abstract
The invention discloses a kind of urban rail medium-pressure type with circulation elimination function and can present method of supplying power to and device, method step includes arranging high-power electronic switch device in advance, detection the direct current net pressure of direct current network of urban rail tractive power supply system, commutator floating voltage, judge train operation state, thus control diode rectifier, the input of current transformer can be presented and exit and the break-make of high-power electronic switch device is to eliminate circulation；Device includes high voltage switch unit, transformator, diode rectifier, the first dc switch unit, can present current transformer, the second dc switch unit, high-power electronic switch device and switching device drive circuit.The present invention can ensure that municipal rail train traction power supply state, energy feedback state and the switching of two kinds of duties all during can present current transformer and not constitute loop with diode rectifier, thus reach to eliminate the function of circulation, and need not increase isolating transformer and reactor, advantage of lower cost, compact conformation.
Description
Technical field
The present invention relates to urban rail tractive power supply system can present electric supply installation, is specifically related to a kind of urban rail medium-pressure type with circulation elimination function and can present electric supply installation.
Background technology
In the regenerating braking energy retracting device of urban rail, electric supply installation can be presented and can make full use of the regenerating braking energy of train, good energy-conserving effect, good with middle pressure AC network compatibility, regenerating braking energy can directly be fed back to AC network for other equipment, there is no the heating problem of energy consumption resistor, it is not required that other energy-storage travelling wave tubes, therefore become urban rail tractive power supply system the most promising regenerated energy recovery scheme.
Urban rail can present electric supply installation by exchange feedback point difference be divided into urban rail high-pressure type can present electric supply installation, urban rail medium-pressure type can present electric supply installation, urban rail low-pressure type can present electric supply installation.Wherein urban rail high-pressure type can present electric supply installation, urban rail low-pressure type can be presented electric supply installation and all pass through to present transformator and boosted by the alternating current after inversion or be fed back to the middle pressure AC network within electric substation or low-voltage network after blood pressure lowering.Urban rail medium-pressure type can be presented electric supply installation and include diode rectifier, current transformer and shared transformator can be presented, the direct current network of urban rail tractive power supply system passes sequentially through diode rectifier, transformator is connected with middle pressure AC network, and described current transformer of presenting is connected in parallel with diode rectifier, when municipal rail train is braked, after regenerating braking energy is by presenting current transformer inversion, the alternating current obtained is fed back to the rectifier transformer low-pressure side in traction substation in Rectification Power Factor, boosted by rectifier transformer, energy feedback is in the middle pressure AC network in traction substation the most at last.Urban rail medium-pressure type can present electric supply installation can present device for transformer owing to saving, advantage of lower cost, and floor space is little, and the electric energy of feedback can be fully utilized, is one the most promising energy back feed device scheme.
In urban rail tractive power supply system, the urban rail medium-pressure type of application can be presented in electric supply installation at present, current transformer can be presented and share a transformator with diode rectifier, although the cost that can present transformator so can be saved, reduction can present electric supply installation volume, but this technical scheme can be presented current transformer and can constitute a loop with commutator, during energy feedback, when the line voltage that can present AC side of converter reaches peak value, regenerating braking energy can cause rectifier transformer secondary side voltage to raise, Partial peaks voltage can be higher than the DC bus-bar voltage of direct current network, thus cause the diode of diode rectifier from open-minded, loop is formed with current transformer can be presented, produce circulation.This circulation can be presented at urban rail medium-pressure type can cause current distortion in electric supply installation, reduce the overall performance of device, increase the system loss of device, increase electric supply installation noise, reduce the feedback efficiency of device, this becomes current urban rail medium-pressure type can present an inherent defect of electric supply installation, is unfavorable for that energy feedback electric power system is stable, runs reliably, limits urban rail medium-pressure type and can present the promotion and application of electric supply installation.
Therefore, circulation problem has become as urban rail medium-pressure type and can present the key technical problem that electric supply installation is urgently to be resolved hurrily.For this technical problem, prior art has following several solution.
Prior art one: can present AC side of converter current-limiting reactor, owing to the size of loop current amount is inversely proportional to the size of loop inductance, therefore can increase the method suppression circulation of loop inductance by additional reactor.But the program is in implementation process, in order to prevent inductance saturated, need to select large volume of magnetic core or air reactor, thus increase device volume and weight, add cost.
Prior art two: current transformer DC side current-limiting reactor can presented, identical with the principle of prior art one, suppress circulation by increasing loop inductance.But reactor will cause AC side of converter and direct current net pressure to raise, and both the above scheme all can only reduce circulation, can not completely inhibit circulation as far as possible.
Prior art three: by current transformer low-voltage alternating-current side addition isolating transformer suppression circulation can be being presented, utilize the buffer action of isolating transformer, circulation flow path can be disconnected, thus realize suppressing the function of circulation.The program to be got well relative to the loop current suppression effect of above two scheme, but adds isolating transformer, adds cost, also makes volume increase.
In sum, it is when presenting device and put into operation that the urban rail medium-pressure type of prior art can present the topmost shortcoming of electric supply installation existence, can present and there is circulation between current transformer and commutator.Circulation will cause current distortion, increases system loss, reduces performance and efficiency, this stability that all have impact on system and the reliability of system.The technical scheme of several suppression circulation that presently, there are, has increase installation cost, the shortcoming of aggrandizement apparatus volume, and the scheme increasing loop inductance can only reduce circulation as far as possible, and the impact of system is yet suffered from by circulation.It is known that urban rail can present formula electric power system has become as a kind of application system being mature on the whole, using in field of track traffic such as subways, the reliability of energy back feed device, stability become the important indicator of power supply of city railway system.Therefore, how to provide a kind of reliability, the urban rail medium-pressure type with circulation elimination function of stability can present electric supply installation, has become as a key technical problem urgently to be resolved hurrily.
Summary of the invention
The technical problem to be solved in the present invention is: for the above-mentioned technical problem of prior art, there is provided a kind of be able to ensure that municipal rail train traction power supply state, energy feedback state and the switching of two kinds of duties all during can present and between current transformer and diode rectifier, not constitute loop, thus reach to eliminate the function of circulation, and need not increase isolating transformer and reactor, advantage of lower cost, the urban rail medium-pressure type with circulation elimination function of compact conformation can present method of supplying power to and device.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of urban rail medium-pressure type with circulation elimination function can present method of supplying power to, and step includes:
1) high-power electronic switch device is arranged between both positive and negative polarity and the direct current network of urban rail tractive power supply system of the DC side outlet that can present the diode rectifier of electric supply installation at urban rail medium-pressure type, described urban rail medium-pressure type can be presented electric supply installation and include diode rectifier, can present current transformer and shared transformator, the direct current network of urban rail tractive power supply system passes sequentially through diode rectifier, transformator is connected with middle pressure AC network, and described current transformer of presenting is connected in parallel with diode rectifier；Initialize installation can be presented the input voltage threshold value of current transformer and exit voltage threshold value, exits electric current threshold value, and acquiescence disconnects high-power electronic switch device；
2) during city rail train, the direct current net pressure of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；If described direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If described direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If described direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5)；
3) judge without municipal rail train braking, not up to energy feedback condition, Guan Bi high-power electronic switch device, diode rectifier is in input state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the alternating current of middle pressure AC network is through transformator transformation, after diode rectifier rectification, direct current network for urban rail tractive power supply system is powered again；Redirect execution step 2)；
4) municipal rail train braking it is determined with but braking energy is less or partial brake energy is absorbed by neighbouring other municipal rail trains, not up to energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the regenerating braking energy produced by municipal rail train braking supports direct current net pressure；Redirect execution step 2)；
5) it is determined with municipal rail train braking, reaches energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, making diode rectifier and can present and do not have circulation between current transformer, the unnecessary regenerating braking energy from the direct current network of urban rail tractive power supply system is three-phase alternating current by presenting current transformer inversion, is fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
6) detection can present current transformer DC side electric current, if described direct current net pressure is more than or equal to exiting voltage threshold value, can present current transformer DC side electric current and set up more than or equal to exiting two conditions of electric current threshold value simultaneously, then redirects execution step 7)；If described direct current net pressure is less than exiting voltage threshold value, can present current transformer DC side electric current and set up less than exiting two conditions of electric current threshold value simultaneously, then judges to reach to exit energy feedback condition, redirect execution step 8)；
7) judge not up to exit energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, make diode rectifier and can present and between current transformer, there is no circulation, the now feedback from the unnecessary regenerating braking energy of the direct current network of urban rail tractive power supply system not yet completes, and continues through and can present current transformer inversion and be three-phase alternating current, be fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
8) Guan Bi high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state so that diode rectifier and can present and do not have circulation between current transformer；Redirect execution step 9)；
9) the direct current net pressure of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier, after when exiting voltage threshold value described in described direct current net pressure is less than more than commutator floating voltage and described direct current net pressure, decision-making system has been in energy feedback, busbar voltage recovers stable process, remain closed high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, redirects execution step 2 when described direct current net pressure is less than or equal to commutator floating voltage).
Preferably, described step 2) detailed step include:
2.1) during city rail train, the direct current net pressure (being called for short direct current net pressure) of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；
2.2) the direct current net pressure of the direct current network of urban rail tractive power supply system detection obtained contrasts with the commutator floating voltage of diode rectifier, if commutator floating voltage also synchronizes respective change during described direct current net Hair Fixer raw change in voltage, the change that described direct current net pressure is then described is to be caused by AC network change in voltage, rather than caused by train operation state change, terminate and exit；Otherwise judge that the change of direct current net pressure is changed by train operation state to cause, redirect execution step 2.3)；
2.3) the direct current net pressure of direct current network, commutator floating voltage for urban rail tractive power supply system judge, if described direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If described direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If described direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5).
nullThe present invention also provides for a kind of urban rail medium-pressure type with circulation elimination function can present electric supply installation，Including high voltage switch unit、Transformator、Diode rectifier、First dc switch unit、Current transformer can be presented、Second dc switch unit、High-power electronic switch device and switching device drive circuit，The primary coil of described transformator is connected with middle pressure AC network by high voltage switch unit，The secondary coil of described transformator passes sequentially through diode rectifier、First dc switch unit is connected with the direct current network of urban rail tractive power supply system，And the secondary coil of described transformator also passes sequentially through and can present current transformer、Second dc switch unit is connected with the direct current network of urban rail tractive power supply system，Described high-power electronic switch devices in series is connected between both positive and negative polarity and the first dc switch unit of DC side outlet of diode rectifier，The outfan of described switching device drive circuit is connected with the control end of high-power electronic switch device.
Preferably, described transformator includes a primary coil and at least two secondary coil.
Preferably, described diode rectifier is 24 Pulses Rectifiers.
Preferably, described high-power electronic switch device is integrated gate commutated thyristor.
Preferably; described switching device drive circuit includes power module, logic controller, opens maintenance module, shutoff module, detection protection module, sending module, receiver module and state display module; the outfan of described power module respectively with logic controller, open maintenance module, turn off module be connected; the outfan of described logic controller maintains module, shutoff module, sending module, state display module to be connected with opening respectively, and the input of described logic controller is connected with detection protection module, receiver module respectively.
Preferably, described logic controller is Programmable logical controller chip FPGA, and described sending module is optical fiber sending module, and described receiver module is optic fiber transceiver module.
nullThe present invention has circulation and eliminates the urban rail medium-pressure type of function to present the advantage of method of supplying power to as follows: the present invention arranges high-power electronic switch device by presenting at urban rail medium-pressure type between both positive and negative polarity and the direct current network of urban rail tractive power supply system of the diode rectifier DC side outlet of electric supply installation，By voltage x current each in system is monitored in real time，And signal is processed，Judge the running status of train，The on off operating mode controlling diode rectifier DC side high-power electronic switch device carries out corresponding action with presenting current transformer under the various duty of system，I.e. can ensure that the traction power supply state at municipal rail train、Energy feedback state and the switching of two kinds of duties all during，By the break-make of diode rectification unit DC side high-power electronic switch device is controlled，Can present and between current transformer and diode rectifier, not constitute loop，Thus realize being completely eliminated the function of circulation，And need not increase isolating transformer and reactor，Advantage of lower cost，Will not aggrandizement apparatus volume.
nullThe present invention have circulation eliminate function urban rail medium-pressure type can present electric supply installation have an advantage that the present invention have circulation eliminate function urban rail medium-pressure type can present electric supply installation be the present invention have circulation eliminate function urban rail medium-pressure type can present the device that method of supplying power to is corresponding，The secondary coil of transformator passes sequentially through diode rectifier、First dc switch unit is connected with the direct current network of urban rail tractive power supply system，And the secondary coil of transformator also passes sequentially through and can present current transformer、Second dc switch unit is connected with the direct current network of urban rail tractive power supply system，High-power electronic switch devices in series is connected between both positive and negative polarity and the first dc switch unit of DC side outlet of diode rectifier，The outfan of switching device drive circuit is connected with the control end of high-power electronic switch device，Under various duties, corresponding action is carried out with control diode rectifier DC side electrical switch，I.e. can ensure that the traction power supply state at municipal rail train、Energy feedback state and the switching of two kinds of duties all during，By the break-make of diode rectification unit DC side high-power electronic switch device is controlled，Can present and between current transformer and diode rectifier, not constitute loop，Thus realize being completely eliminated the function of circulation，And need not increase isolating transformer and reactor，Advantage of lower cost，Will not aggrandizement apparatus volume.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of embodiment of the present invention method.
Fig. 2 is the electrical block diagram of embodiment of the present invention device.
Fig. 3 is the generalized section of prior art GCT structure.
Fig. 4 is the equivalent circuit diagram during conducting of prior art IGCT.
Fig. 5 is the equivalent circuit diagram during shutoff of prior art IGCT.
Fig. 6 is the frame structure schematic diagram of embodiment of the present invention breaker in middle component driving circuit.
Fig. 7 is the equivalent circuit structure schematic diagram in the embodiment of the present invention when high-power electronic switch device closes.
Marginal data: 1, high voltage switch unit；2, transformator；3, diode rectifier；4, the first dc switch unit；5, current transformer can be presented；6, the second dc switch unit；7, high-power electronic switch device；8, switching device drive circuit；81, power module；82, logic controller；83, maintenance module is opened；84, module is turned off；85, detection protection module；86, sending module；87, receiver module；88, state display module.
Detailed description of the invention
As it is shown in figure 1, the step that the urban rail medium-pressure type with circulation elimination function of the present embodiment can present method of supplying power to includes:
1) high-power electronic switch device is arranged between both positive and negative polarity and the direct current network of urban rail tractive power supply system of the DC side outlet that can present the diode rectifier of electric supply installation at urban rail medium-pressure type, urban rail medium-pressure type can be presented electric supply installation and include diode rectifier, can present current transformer and shared transformator, the direct current network of urban rail tractive power supply system passes sequentially through diode rectifier, transformator is connected with middle pressure AC network, and can present current transformer and be connected in parallel with diode rectifier；Initialize installation can be presented the input voltage threshold value of current transformer and exit voltage threshold value, exits electric current threshold value, and acquiescence disconnects high-power electronic switch device；
2) during city rail train, the direct current net pressure (being called for short direct current net pressure) of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；If direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5)；
3) judge without municipal rail train braking, not up to energy feedback condition, Guan Bi high-power electronic switch device, diode rectifier is in input state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the alternating current of middle pressure AC network is through transformator transformation, after diode rectifier rectification, direct current network for urban rail tractive power supply system is powered again；Redirect execution step 2)；
4) municipal rail train braking it is determined with but braking energy is less or partial brake energy is absorbed by neighbouring other municipal rail trains, not up to energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the regenerating braking energy produced by municipal rail train braking supports direct current net pressure；Redirect execution step 2)；
5) it is determined with municipal rail train braking, reaches energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, making diode rectifier and can present and do not have circulation between current transformer, the unnecessary regenerating braking energy from the direct current network of urban rail tractive power supply system is three-phase alternating current by presenting current transformer inversion, is fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
6) detection can present current transformer DC side electric current, if direct current net pressure is more than or equal to exiting voltage threshold value, can present current transformer DC side electric current and set up more than or equal to exiting two conditions of electric current threshold value simultaneously, then redirects execution step 7)；If direct current net pressure is less than exiting voltage threshold value, can present current transformer DC side electric current and set up less than exiting two conditions of electric current threshold value simultaneously, then judges to reach to exit energy feedback condition, redirect execution step 8)；
7) judge not up to exit energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, make diode rectifier and can present and between current transformer, there is no circulation, the now feedback from the unnecessary regenerating braking energy of the direct current network of urban rail tractive power supply system not yet completes, and continues through and can present current transformer inversion and be three-phase alternating current, be fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
8) Guan Bi high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state so that diode rectifier and can present and do not have circulation between current transformer；Redirect execution step 9)；
9) the direct current net pressure of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier, when direct current net pressure recovers stable process more than commutator floating voltage and direct current net pressure less than busbar voltage after decision-making system has been in energy feedback when exiting voltage threshold value, remain closed high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, redirects execution step 2 when described direct current net pressure is less than or equal to commutator floating voltage).
nullComplexity due to power supply of city railway system self structure，Realizing of high-power electronic switch device 7 is relatively difficult，The reason of one aspect is that the on off operating mode logic control for high-power electronic switch device 7 is extremely complex，Therefore prior art is universal it is envisioned that increase loop inductance by the way of increasing reactor and reach to suppress the function of circulation，The present embodiment passes through above-mentioned steps 1)～9)，Achieve the complete logic control for high-power electronic switch device 7，It is thus possible to realize eliminating urban rail medium-pressure type based on high-power electronic switch device 7 can present the circulation of power supply，Guarantee the traction power supply state at municipal rail train、Energy feedback state and the switching of two kinds of duties all during，By the break-make of diode rectification unit DC side high-power electronic switch device is controlled，Can present and between current transformer and diode rectifier, not constitute loop，Thus realize being completely eliminated the function of circulation，And need not increase isolating transformer and reactor，Advantage of lower cost，Will not aggrandizement apparatus volume.
Step 2 in the present embodiment) detailed step include:
2.1) during city rail train, the direct current net pressure (being called for short direct current net pressure) of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；
2.2) the direct current net pressure of the direct current network of urban rail tractive power supply system detection obtained contrasts with the commutator floating voltage of diode rectifier, if commutator floating voltage also synchronizes respective change during direct current net Hair Fixer raw change in voltage, then the change of explanation direct current net pressure is to be caused by AC network change in voltage, rather than caused by train operation state change, terminate and exit；Otherwise judge that the change of direct current net pressure is changed by train operation state to cause, redirect execution step 2.3)；
2.3) the direct current net pressure of direct current network, commutator floating voltage for urban rail tractive power supply system judge, if direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5).
To sum up step 2.1)～2.3), when direct current net pressure changes, the present embodiment first passes through above-mentioned steps and gets rid of and cause the disturbed condition of direct current net buckling, the most non-train traction, braking and the net buckling that causes, it is to avoid maloperation.Caused by train operation when determining direct current net buckling, then carry out the judgement of train operation state.
nullAs shown in Figure 2，The urban rail medium-pressure type with circulation elimination function of the present embodiment can be presented electric supply installation and include high voltage switch unit 1、Transformator 2、Diode rectifier 3、First dc switch unit 4、Current transformer 5 can be presented、Second dc switch unit 6、High-power electronic switch device 7 and switching device drive circuit 8，The primary coil of transformator 2 is connected with middle pressure AC network by high voltage switch unit 1，The secondary coil of transformator 2 passes sequentially through diode rectifier 3、First dc switch unit 4 is connected with the direct current network of urban rail tractive power supply system，And the secondary coil of transformator 2 also passes sequentially through and can present current transformer 5、Second dc switch unit 6 is connected with the direct current network of urban rail tractive power supply system，High-power electronic switch device 7 is connected in series between both positive and negative polarity and the first dc switch unit 4 of DC side outlet of diode rectifier 3，The outfan of switching device drive circuit 8 is connected with the control end of high-power electronic switch device 7.
In the present embodiment, high voltage switch unit 1 is arranged in high-tension switch cabinet, first dc switch unit the 4, second dc switch unit 6 is arranged in direct-current switch cabinet, diode rectifier 3 is arranged in diode rectification cabinet, current transformer 5 can be presented be arranged in and can present in converter cabinet, can present converter cabinet to be connected with AC PT cabinet, sampled signal, for sampling ac grid voltage, is converted to voltage synchronous signal by internal synchrotrans by AC PT cabinet.
In the present embodiment, transformator 2 includes a primary coil and at least two secondary coil.
Alternating current, by controlling diode switch, is converted to unidirectional current, the direct current contact net of supply train by diode rectifier 3.In the present embodiment, diode rectifier 3 is 24 Pulses Rectifiers, and diode rectifier 3 can also use other kinds of commutator based on diode as required in addition.
For the selection of high-power electronic switch device 7 in the present embodiment, it is contemplated that chopper is affected by on-off times, it is impossible to use in the position of frequent break-make, be not therefore suitable for the present embodiment；Catalyst does not all reach requirement in switching speed with bearing in the ability of electric current；GTO switching loss is too high；IGBT current class does not reaches requirement.Consider each side factors such as the current class of high-power electronic switch device 7, switch life, switching speed, the present embodiment select integrated gate commutated thyristor (IGCT) as the electronic switching device of diode rectifier 2 DC side, by using IGCT to ensure that the switching speed of high-power electronic switch device 7, real-time, and service life；And when after the AC power-off of diode rectifier 2; recover again the diode in diode rectifier 2 to be impacted when powering on; frequently power-off will affect diode service life; therefore the DC side at diode rectifier is selected to add high-power electronic switch device 7, additionally it is possible to play the purpose of the diode effectively protected in diode rectifier 2.IGCT is integrated by door pole stream-exchanging thyristor (GCT) and hard driven circuit, the advantage combining IGBT and GTO, GCT is at GTO(gate level turn-off thyristor) introduce cushion on chip, launch site can be penetrated and inverse guide structure is formed, its frame for movement wants simple compared with IGBT.GCT structural profile as shown in Figure 3 understands, and GCT is four layers of three terminal device, is i.e. made up of four-level semiconductor material (PNPN), three poles of outside extraction, is made up of hundreds and thousands of GCT units inside GCT, similar with GTO structure.But GCT utilizes buffer layer technique, under identical blocking voltage, silicon chip is thinner, can be substantially reduced conduction loss, employing simultaneously can penetrate lift-off technology makes GCT anode thinner, and is weak doping, during shutoff, electronics can be swept anode launch site, and inject without hole, improve turn-off speed, reduce turn-off power loss.IGCT uses gate pole hard-drive technology, gate drive circuit, GCT are integrated, its conducting provides driving electric current to control by drive circuit to gate pole, by improving the amplitude and climbing driving electric current, the difference of time delay in different sliver unit opening process can be substantially reduced in chip.Use such hard-drive gate trigger current mode, the di/dt(i.e. current changing rate of IGCT self, corresponding dv/dt i.e. voltage change ratio can be improved) tolerance, thus reduce the suppression inductance value needed for IGCT anode loop.Opening by force gate trigger current pulse makes cathode electronics injection highly uniform, reduces the on-state voltage drop of IGCT device, thus improves device and open speed, reduced loss before anode current increases.The operation principle of IGCT depends on the work process of GCT, and available two transistors represent, equivalent circuit diagram and equivalent circuit diagram is as shown in Figure 4 and Figure 5 when turning off during its conducting.Moment when IGCT opens, gate pole applies positive strong voltage, and GCT is in NPN transistor state.After conducting, GCT is equivalent to the transistor of two positive feedbacks, and strong positive feedback makes two transistor all saturation conductions, and therefore GCT is when conducting state, is equivalent to the positive feedback switches of a similar IGCT, carries current capacity strong, and on-state voltage drop is low.When IGCT turns off, electric charge is before anode N base is drawn out of completely, and whole anode current is rapidly converting to gate pole by negative electrode, allows GCT door-negative electrode PN junction enter reverse bias in advance and to deactivate when turning off the most by force, negative electrode injection instant, stops, and makes device turn off under polar transistor mode.Before bearing any blocking voltage, IGCT has become transistor the most, so without the restriction of additional dv/dt, it is not necessary to absorbing circuit, therefore IGCT is without second breakdown, though tail currents is big but the time is the shortest.To sum up, under suitable gate pole drives by force, IGCT opens moment and is in NPN transistor state, is that IGCT state, shutdown moment and cut-off state are PNP transistor state during conducting.
As shown in Figure 6, switching device drive circuit 8 includes power module 81, logic controller 82, open maintenance module 83, turn off module 84, detection protection module 85, sending module 86, receiver module 87 and state display module 88, the outfan of power module 81 respectively with logic controller 82, open maintenance module 83, turn off module 84 to be connected, the outfan of logic controller 82 maintains module 83 with opening respectively, turn off module 84, sending module 86, state display module 88 is connected, the input of logic controller 82 protects module 85 with detection respectively, receiver module 87 is connected.At present high-power electronic switch device 7 is difficult to present the Another reason of application in electric supply installation at urban rail medium-pressure type is that the design of drive circuit of high-power electronic switch device 7 is the most difficult, therefore prior art generally increases loop inductance by the way of increasing reactor and reaches to suppress the function of circulation, without using the method increasing high-power electronic switch device 7.The present embodiment structure based on above-mentioned switching device drive circuit 8, it is possible to effectively realize the break-make to high-power electronic switch device 7 and control.
In the present embodiment, power module 81 uses 20V DC source, and generate 5V, the control power supply of 15V, open and maintain module 83 to open pulse current and on-state gate pole maintenance electric current when obtaining the Continuity signal of logic controller 82 to IGCT offer, turn off module 84 and control IGCT shutoff when obtaining logic controller 82 cut-off signals, detection protection module 85 charge of overseeing drive circuit board and IGCT duty, protect when fault and report to the police, logic controller 82 is Programmable logical controller chip FPGA, sending module 86, receiver module 87 is for realizing the signal contact of driver and control system.In the present embodiment, sending module 86 is optical fiber sending module, and receiver module 87 is optic fiber transceiver module；In addition other kinds of transceiver interface module can also be used as required.
Under in working order, the real-time sampling that can be presented electric supply installation voltage x current by the urban rail medium-pressure type with circulation elimination function of centering pressure AC network, the direct current network of urban rail tractive power supply system and the present embodiment is monitored, each voltage and current signal is processed, judge the running status of train and whether meet the condition of energy feedback, thus control to present the running status of current transformer 5 and the break-make of diode rectifier 3 DC side high-power electronic switch device 7, it is finally reached elimination and can present the purpose of circulation between current transformer 5 and diode rectifier 3.
The process powered for the control realization of high-power electronic switch device 7 in the present embodiment is as follows: during city rail train, AC PT cabinet carries out real-time sampling monitoring to AC voltage, the signal collected is delivered to present the control system of converter cabinet by synchrotrans, simultaneously to direct current contact net, the voltage x current that can present device and commutator is monitored in real time, it is based primarily upon the direct current net pressure of the direct current network of detection urban rail tractive power supply system, the commutator floating voltage of diode rectifier, current transformer DC side electric current can be presented realize judging to present the running status of current transformer 5 and the input of diode rectifier, the condition exited, and control the break-make of high-power electronic switch device 7.When direct current net pressure changes, it is necessary first to get rid of according to commutator floating voltage and cause the disturbed condition of direct current net buckling, the most non-train traction, braking and the net buckling that causes, it is to avoid maloperation.Caused by train operation when determining direct current net buckling, then carry out the judgement of train operation state.
Understand in conjunction with Fig. 1, the present embodiment can be presented current transformer 5 and enter and put into the judgement of state and have following several situation:
(1) direct current net pressure≤commutator floating voltage.Judge without municipal rail train braking, not up to energy feedback condition, Guan Bi high-power electronic switch device 7, diode rectifier 3 is in input state, can present current transformer 5 and be in and exit state, make diode rectifier 3 and can present and there is no circulation between current transformer 5, electric power system is in traction power supply state, and the alternating current of middle pressure AC network is through transformator 2 transformation, power for the direct current network of urban rail tractive power supply system after diode rectifier 3 rectification again.
(2) commutator floating voltage ＜ direct current net pressure ＜ puts into voltage threshold value.It is determined with municipal rail train braking but braking energy is less or partial brake energy is absorbed by neighbouring other municipal rail trains, not up to energy feedback condition, disconnect high-power electronic switch device 7, diode rectifier 3 is in and exits state, can present current transformer 5 and be in and exit state so that diode rectifier 3 and can present and do not have circulation between current transformer 5.Now owing to being still not up to the condition of energy feedback, therefore can present current transformer 5 not come into operation, and there is no circulation between diode rectifier 3, after disconnecting high-power electronic switch device 7, the rectification branch road at diode rectifier 3 place disconnects, owing to now there being municipal rail train to be in on-position, braking energy can support direct current net pressure, keeps properly functioning.When disconnecting high-power electronic switch device 7, being equivalent to only to present current transformer 5 branch road, its equivalent circuit diagram is as shown in Figure 7.
(3) direct current net pressure >=commutator floating voltage and input voltage threshold value.
It is determined with municipal rail train braking, reaches energy feedback condition, disconnect high-power electronic switch device 7, diode rectifier is in and exits state 3, can present current transformer 5 and be in input state, make diode rectifier 3 and can present and there is no circulation between current transformer 5, system is in energy feedback state, from direct current network unnecessary of urban rail tractive power supply system at regenerating braking energy by can present current transformer 5(IGBT unsteady flow module) inversion is three-phase alternating current, is fed back to middle pressure AC network after transformator 2 transformation again.Direct current net pressure is in a uphill process before reaching to put into voltage threshold value, when direct current net pressure is more than commutator floating voltage and when being less than the input voltage threshold value that can present device, i.e. it is in above-mentioned situation (2), then high-power electronic switch device 7 can disconnect rapidly before presenting current transformer 5 and starting input, avoid diode rectifier 3 and current transformer 5 composition loop when system traction power supply switches with energy feedback state can be presented, therefore dash current and the circulation of state switching moment are avoided, power supply of city railway system is enable to realize smoothly from traction power supply state to the conversion of energy feedback state.During whole energy feedback, owing to being disconnected high-power electronic switch device 7, the rectification branch road at diode rectifier 3 place disconnects, and diode rectifier 3 no longer forms a loop with presenting current transformer 5, the most there is not circulation.
Understand in conjunction with Fig. 1, the present embodiment enters and puts into after state, exit input state, enter and exit state and have following several situation.
(4) direct current net pressure >=exit voltage threshold value, current transformer DC side electric current >=exit electric current threshold value can be presented.Judge not up to exit energy feedback condition, disconnect high-power electronic switch device 7, diode rectifier 3 is in and exits state, can present current transformer 5 and be in input state, make diode rectifier 3 and can present and there is no circulation between current transformer 5, the now unnecessary feedback at regenerating braking energy from the direct current network of urban rail tractive power supply system not yet completes, and continues through and can present current transformer 5 inversion and be three-phase alternating current, be fed back to middle pressure AC network after transformator 2 transformation again.
(5) direct current net pressure ＜ exits voltage threshold value, can present current transformer DC side electric current ＜ and exit electric current threshold value.Judging to reach to exit energy feedback condition, close high-power electronic switch device 7, diode rectifier 3 is in and exits state, can present current transformer 5 and be in and exit state so that diode rectifier and can present and do not have circulation between current transformer.
(6) < direct current net pressure < exits voltage threshold value to commutator floating voltage.Decision-making system has been in busbar voltage after energy feedback and has recovered stable process, remain closed high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, redirects execution step 2 when described direct current net pressure≤commutator floating voltage).
Step 2) in see aforesaid condition (1), judge when direct current net pressure≤commutator floating voltage to be under traction power supply state, Guan Bi high-power electronic switch device 7, diode rectifier 3 is in input state, can present current transformer 5 and be in and exit state, make diode rectifier 3 and can present and there is no circulation between current transformer 5, the alternating current of middle pressure AC network through transformator 2 transformation, power for the direct current network of urban rail tractive power supply system after diode rectifier 3 rectification, waits municipal rail train braking again.
To sum up, the present embodiment is in medium-pressure type energy feedback electric power system, train traction power supply state, energy feedback state and two states switching all during, by to the process of each voltage and current signal and judgement, control the high-power electronic switch device 7 of diode rectifier 3 DC side, all can disconnect the current transformer 5 loop with diode rectifier 3 can be presented during whole electric power system is run, eliminate circulation between the two.The present embodiment adds high-power electronic switch device 7 at the DC side of diode rectifier 3, voltage synchronous signal is provided by AC PT cabinet, system real-time sampling monitoring direct current network, the voltage x current of current transformer 5 can be presented, and arrange and can present the input voltage threshold value of current transformer 5, exit electric current threshold value.Direct current net pressure based on detection, commutator floating voltage, current transformer DC side electric current can be presented and judge train operation state and system running state, according to judging that the state obtained obtains operating instruction, to diode rectifier DC side electrical switch state and plant running state can be presented control accordingly, make train in traction power supply state, energy feedback state and two states switching all during, current transformer can be presented and the most do not constitute loop with diode rectifier, reach to eliminate the purpose of circulation, the method comparing the medium-pressure type energy back feed device suppression circulation of routine, the effect that the present embodiment eliminates circulation is more preferable, circulation can be completely eliminated, rather than suppress circulation as far as possible；And the reliability of the present embodiment is high, eliminating while circulation, it is ensured that the switching between the various running status of system is steady, and security and stability is high；Additionally, the method that the present embodiment compares the medium-pressure type energy back feed device suppression circulation of routine, eliminate isolating transformer and reactor device, saved system cost, reduce volume.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a urban rail medium-pressure type with circulation elimination function can present method of supplying power to, it is characterised in that step includes:
1) high-power electronic switch device is arranged between both positive and negative polarity and the direct current network of urban rail tractive power supply system of the DC side outlet that can present the diode rectifier of electric supply installation at urban rail medium-pressure type, described urban rail medium-pressure type can be presented electric supply installation and include diode rectifier, can present current transformer and shared transformator, the direct current network of urban rail tractive power supply system passes sequentially through diode rectifier, transformator is connected with middle pressure AC network, and described current transformer of presenting is connected in parallel with diode rectifier；Initialize installation can be presented the input voltage threshold value of current transformer and exit voltage threshold value, exits electric current threshold value, and acquiescence disconnects high-power electronic switch device；
2) during city rail train, the direct current net pressure of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；If described direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If described direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If described direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5)；
3) judge without municipal rail train braking, not up to energy feedback condition, Guan Bi high-power electronic switch device, diode rectifier is in input state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the alternating current of middle pressure AC network is through transformator transformation, after diode rectifier rectification, direct current network for urban rail tractive power supply system is powered again；Redirect execution step 2)；
4) municipal rail train braking it is determined with but braking energy is less or partial brake energy is absorbed by neighbouring other municipal rail trains, not up to energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, making diode rectifier and can present and do not have circulation between current transformer, the regenerating braking energy produced by municipal rail train braking supports direct current net pressure；Redirect execution step 2)；
5) it is determined with municipal rail train braking, reaches energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, making diode rectifier and can present and do not have circulation between current transformer, the unnecessary regenerating braking energy from the direct current network of urban rail tractive power supply system is three-phase alternating current by presenting current transformer inversion, is fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
6) detection can present current transformer DC side electric current, if described direct current net pressure is more than or equal to exiting voltage threshold value, can present current transformer DC side electric current and set up more than or equal to exiting two conditions of electric current threshold value simultaneously, then redirects execution step 7)；If described direct current net pressure is less than exiting voltage threshold value, can present current transformer DC side electric current and set up less than exiting two conditions of electric current threshold value simultaneously, then judges to reach to exit energy feedback condition, redirect execution step 8)；
7) judge not up to exit energy feedback condition, disconnect high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in input state, make diode rectifier and can present and between current transformer, there is no circulation, the now feedback from the unnecessary regenerating braking energy of the direct current network of urban rail tractive power supply system not yet completes, and continues through and can present current transformer inversion and be three-phase alternating current, be fed back to middle pressure AC network after transformator transformation again；Redirect execution step 6)；
8) Guan Bi high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state so that diode rectifier and can present and do not have circulation between current transformer；Redirect execution step 9)；
9) the direct current net pressure of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier, after when exiting voltage threshold value described in described direct current net pressure is less than more than commutator floating voltage and described direct current net pressure, decision-making system has been in energy feedback, busbar voltage recovers stable process, remain closed high-power electronic switch device, diode rectifier is in and exits state, can present current transformer and be in and exit state, redirects execution step 2 when described direct current net pressure is less than or equal to commutator floating voltage).
The most according to claim 1 have circulation eliminate function urban rail medium-pressure type can present method of supplying power to, it is characterised in that described step 2) detailed step include:
2.1) during city rail train, the direct current net pressure (being called for short direct current net pressure) of the direct current network of detection urban rail tractive power supply system, obtain the commutator floating voltage of diode rectifier；
2.2) the direct current net pressure of the direct current network of urban rail tractive power supply system detection obtained contrasts with the commutator floating voltage of diode rectifier, if commutator floating voltage also synchronizes respective change during described direct current net Hair Fixer raw change in voltage, the change that described direct current net pressure is then described is to be caused by AC network change in voltage, rather than caused by train operation state change, terminate and exit；Otherwise judge that the change of direct current net pressure is changed by train operation state to cause, redirect execution step 2.3)；
2.3) the direct current net pressure of direct current network, commutator floating voltage for urban rail tractive power supply system judge, if described direct current net pressure is less than or equal to commutator floating voltage, then redirect execution step 3)；If described direct current net pressure is more than commutator floating voltage and less than putting into voltage threshold value, then redirect execution step 4)；If described direct current net pressure is more than or equal to putting into voltage threshold value and commutator floating voltage, then redirect execution step 5).
null3. a urban rail medium-pressure type with circulation elimination function can present electric supply installation，It is characterized in that: include high voltage switch unit (1)、Transformator (2)、Diode rectifier (3)、First dc switch unit (4)、Current transformer (5) can be presented、Second dc switch unit (6)、High-power electronic switch device (7) and switching device drive circuit (8)，The primary coil of described transformator (2) is connected with middle pressure AC network by high voltage switch unit (1)，The secondary coil of described transformator (2) passes sequentially through diode rectifier (3)、First dc switch unit (4) is connected with the direct current network of urban rail tractive power supply system，And the secondary coil of described transformator (2) also passes sequentially through and can present current transformer (5)、Second dc switch unit (6) is connected with the direct current network of urban rail tractive power supply system，Described high-power electronic switch device (7) is connected in series between both positive and negative polarity and the first dc switch unit (4) of DC side outlet of diode rectifier (3)，The outfan of described switching device drive circuit (8) is connected with the control end of high-power electronic switch device (7).
The urban rail medium-pressure type with circulation elimination function the most according to claim 3 can present electric supply installation, it is characterised in that: described transformator (2) includes a primary coil and at least two secondary coil.
The urban rail medium-pressure type with circulation elimination function the most according to claim 4 can present electric supply installation, it is characterised in that: described diode rectifier (3) is 24 Pulses Rectifiers.
6. can present electric supply installation according to the urban rail medium-pressure type with circulation elimination function described in claim 3 or 4 or 5, it is characterised in that: described high-power electronic switch device (7) is integrated gate commutated thyristor.
nullThe urban rail medium-pressure type with circulation elimination function the most according to claim 6 can present electric supply installation，It is characterized in that: described switching device drive circuit (8) includes power module (81)、Logic controller (82)、Open maintenance module (83)、Turn off module (84)、Detection protection module (85)、Sending module (86)、Receiver module (87) and state display module (88)，The outfan of described power module (81) respectively with logic controller (82)、Open maintenance module (83)、Turn off module (84) to be connected，The outfan of described logic controller (82) maintains module (83) with opening respectively、Turn off module (84)、Sending module (86)、State display module (88) is connected，The input of described logic controller (82) protects module (85) with detection respectively、Receiver module (87) is connected.
The urban rail medium-pressure type with circulation elimination function the most according to claim 7 can present electric supply installation, it is characterized in that: described logic controller (82) is Programmable logical controller chip FPGA, described sending module (86) is optical fiber sending module, and described receiver module (87) is optic fiber transceiver module.
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Families Citing this family (12)
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| CN105226969B (en) * | 2015-10-28 | 2018-08-10 | 宁波市轨道交通集团有限公司 | Pressure energy feedback system and its method can be presented in power supply of city railway system twin coil access type |
| CN106026185A (en) * | 2016-07-29 | 2016-10-12 | 南京工程学院 | Three-level subway energy feedback and harmonic control integrated device and control method thereof |
| CN107264340B (en) * | 2017-06-26 | 2019-05-24 | 厦门科华恒盛股份有限公司 | A method of for selecting the control strategy of energy feedback system current transformer |
| CN107776438B (en) * | 2017-09-20 | 2019-03-19 | 北京市轨道交通建设管理有限公司 | The anti-loop process of urban track traffic traction power supply and system |
| CN109698518B (en) * | 2017-10-23 | 2023-05-12 | 中车株洲电力机车研究所有限公司 | Traction power supply system and energy feedback device thereof |
| CN108312898B (en) * | 2018-03-30 | 2024-01-05 | 北京千驷驭电气有限公司 | Dynamic simulation device for simulating urban rail transit vehicle |
| CN110654272B (en) * | 2019-09-30 | 2022-09-16 | 南京亚派科技股份有限公司 | Method for preventing false start between adjacent stations of subway energy feedback device |
| CN114079291B (en) * | 2020-08-12 | 2024-03-15 | 中车株洲电力机车研究所有限公司 | Parallel cooperative control method for bidirectional converter and traction rectifier and related equipment |
| CN112356741B (en) * | 2020-11-20 | 2022-06-07 | 西安许继电力电子技术有限公司 | Feedback control method and system based on PWM energy feedback converter |
| CN112737367A (en) * | 2020-12-09 | 2021-04-30 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Rectifying power supply device |
| CN112737368A (en) * | 2020-12-09 | 2021-04-30 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | High-performance rectifying power supply device |
| CN113060007B (en) * | 2021-04-21 | 2022-09-13 | 重庆中车长客轨道车辆有限公司 | Energy absorption system for a rail vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3213778A1 (en) * | 1982-04-08 | 1983-10-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Network coupling for exchanging electrical energy between a three-phase network at a higher frequency and a single-phase network at a lower frequency |
| DE4319366A1 (en) * | 1993-06-07 | 1994-12-08 | Elpro Ag | d.c. high-speed circuit-breaker using hybrid technology |
| CN101249806A (en) * | 2008-04-14 | 2008-08-27 | 北京交通大学 | Modular energy feedback type traction power set and control method |
| CN202046214U (en) * | 2011-05-09 | 2011-11-23 | 株洲变流技术国家工程研究中心有限公司 | Energy-fed traction power supply device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204172712U (en) * | 2014-10-28 | 2015-02-25 | 株洲时代装备技术有限责任公司 | A kind of city rail medium-pressure type with circulation elimination function can present electric supply installation |
-
2014
- 2014-10-28 CN CN201410585665.3A patent/CN104340085B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3213778A1 (en) * | 1982-04-08 | 1983-10-13 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Network coupling for exchanging electrical energy between a three-phase network at a higher frequency and a single-phase network at a lower frequency |
| DE4319366A1 (en) * | 1993-06-07 | 1994-12-08 | Elpro Ag | d.c. high-speed circuit-breaker using hybrid technology |
| CN101249806A (en) * | 2008-04-14 | 2008-08-27 | 北京交通大学 | Modular energy feedback type traction power set and control method |
| CN202046214U (en) * | 2011-05-09 | 2011-11-23 | 株洲变流技术国家工程研究中心有限公司 | Energy-fed traction power supply device |
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