CN202046214U - Energy-fed traction power supply device - Google Patents
Energy-fed traction power supply device Download PDFInfo
- Publication number
- CN202046214U CN202046214U CN2011201438265U CN201120143826U CN202046214U CN 202046214 U CN202046214 U CN 202046214U CN 2011201438265 U CN2011201438265 U CN 2011201438265U CN 201120143826 U CN201120143826 U CN 201120143826U CN 202046214 U CN202046214 U CN 202046214U
- Authority
- CN
- China
- Prior art keywords
- traction power
- power set
- type traction
- present
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses an energy-fed traction power supply device, which comprises a multiple transformer, and at least two four-quadrant converter modules. The energy-fed traction power supply device and a diode rectifier traction unit are disposed in parallel, a primary side of the multiple transformer is connected with an alternating-current medium voltage power network through a high-voltage switchgear, each winding on a low voltage side of the multiple transformer is connected with an alternating current side of the corresponding four-quadrant converter module, the direct current sides of the four-quadrant converter modules are connected with a direct current side disconnector and then connected in parallel, and the the direct current sides of the four-quadrant converter modules are then connected with a direct current bus through a direct current switch gear and a cathode cabinet. The energy-fed traction power supply device is capable of operating in a traction mode, a feedback mode or a SVG (scalable vector graphics) mode differently. The energy-fed traction power supply device is compatible with an existing traction power supply system and proper in cost while meeting the requirement of the power network on compatibility, can solve the technical problems of regenerative braking energy feedback and stable network voltage traction, and has the static reactive power compensation capacity.
Description
Technical field
The utility model relates to a kind of electric supply installation of electric system, especially relates to a kind of energy feedback type traction power set that possesses traction, feedback and SVG function, is widely used in all kinds of similar electric system such as city rail track traffic electric power system.
Background technology
Along with the aggravation of urbanization process and population mobility's increasing, greatly developing urban track traffic becomes and alleviates the important channel that city traffic blocked up, improved urban human and environment day by day and promotes the sustainable development of the city.
For many years, the power supply of urban orbit traffic system adopts the diode rectification technology to realize the conversion of source of AC to the DC traction power supply always, particularly take 24 pulse wave rectifier technology after, solved preferably with the harmonic wave compatibling problem of electrical network.Though this technology can satisfy vehicle towed demand of getting stream preferably, but this type systematic has several problems: the one, can only realize the nonreturn flow of energy, only some is closed on the accelerating vehicle absorption to a large amount of unnecessary regenerated energy that produces during car brakeing with net, most of by vehicle-borne or ground-surface braking resistor with heat-producing form consumption, for the frequent city rail vehicle that rises, brakes, cause great energy dissipation undoubtedly.The 2nd, because the heating of braking resistor causes platform, subterranean tunnel thermal accumlation, temperature rising, some city rail system tunnel temperature has to strengthen the capacity of draft equipment up to 50 degree, causes serious secondary energy consumption.The 3rd, for vehicle-mounted braking resistor pattern, the power consumption that the deadweight of braking resistor increase car body causes can be very considerable.The 4th, the online vehicle of on-line operation simultaneously of traction has tens pairs even tens pairs, and the variation of load causes the traction net voltage fluctuation serious, is unfavorable for that vehicle is steady, reliability service.The 5th, according near, at a specified future date planning and every day the passenger flow situation of change, there are the big characteristics of load variations in the power supply of city railway system, when load is light or vehicle at night the no car of stopping transport get when flowing, because the idle problem of sending appears in the existence of the AC transmission cable equivalent capacity system that makes, night, power factor was very low.Advocate energetically under the energy-saving and cost-reducing situation in present China, lagged behind the development of rail vehicle technology of the development progress of power supply of city railway system, a plurality of city rail circuits yet to be built, as many circuits such as Wuxi, Suzhou, Changsha, Xi'an, Shenzhen and Guangzhou, the demand that existing tractive power supply system is undergone technological transformation has been proposed all.
For the energy-conservation and stable traction of regenerative feedback net voltage problem before solving, the researchist has proposed energy storage-type and energy feedback type scheme, even full PWM four quadrant convertor scheme, in order to solve the idle problem of sending under traction net underloading or the no-load condition, again additive incrementation equipment such as SVC, FC.Recycling for regenerating braking energy is measured in urban track traffic has dual mode: energy storage-type and energy feedback type.The energy storage-type can be divided into super capacitor energy storage type, flywheel energy storage type and battery energy storage type according to the difference of energy-storage travelling wave tube.Super capacitor energy storage type is succeeded in developing by Siemens, but because problems such as the reliability of super capacitor itself, price are application and unsuccessful.The flywheel energy storage type has also obtained application in Germany, but because cost, maintenance cost and to problems such as peak power sensivitys, the scale Application Prospect is not expected; Battery energy storage type major defect is in the enormousness that need be equipped with the impulse electricity number of times of battery and when absorbing number MW regenerating braking energy.The energy feedback type chief component is a four quadrant convertor, the element of employing be track traffic, industrial unsteady flow field extensively, the reliable IGBT device of using for many years, whole cost is moderate, takes up an area of for a short time, is fit to the use of current power supply of city railway system.But these equipment costs add the rare of urban land all than higher, just increase by a kind equipment and obviously are unfavorable for improving city rail construction investment return rate for solving certain problem, also do not meet the theory of urban sustainable development.In the prior art, the main technical scheme that has following several modes:
Prior art 2 is for being published in the employing super capacitor energy-storage that proposes in " research of urban track traffic braking energy inversion feedback system " literary composition of " urban track traffic research " the 12nd phase in 2007 and the brake energy feedback system of many level of three-phase feedback inversion transformation device formation by people such as the Wang Jun of Guodian Nannui Tech Co., Ltd on December 30th, 2007.As shown in Figure 2, this system inserts the bi-directional DC-DC link regenerating braking energy is deposited in earlier in the bank of super capacitors in the middle of feedback inversion transformation device and drawing electric network, by three-phase feedback inversion transformation device energy is fed back to the three-phase alternating current electrical network more afterwards.Though also there is inverter to link to each other with AC network, in the processing of regenerating braking energy, realize by increasing intermediate dc link and super capacitor, be the scheme that belongs to super capacitor energy-storage therefore from essence.
Prior art 3 is the Sitras TCI device that Siemens uses at present.The English full name of this covering device is Thyristor controlled inverter for DC traction power supply, promptly is applied to the controlled thyristor inverter of dc traction system, and its system constitutes as shown in Figure 3.System is by alternating-current switch 31, autotransformer 32, thyristor unit 33, reactor 34 compositions such as grade.This system only is operated in inverter mode, and the vehicle regenerative braking energy feedback that DC side is too much is to AC side.This device can be with the unnecessary regenerative braking energy feedback of DC side to AC side by thyristor inverter and autotransformer and other annexes, but because the binistor that adopts is a thyristor, therefore wherein presses the side harmonics can be bigger, and power factor is lower.Must on the interchange common bus, increase filter when in fact, using this device.Also there was similarly thyristor scheme in Japan, but found in the use also can cause more serious direct current harmonic problem except that problem above-mentioned, if use the track transmission signal, will influence the normal reliable transmission of signal.This device does not possess traction and no-power compensation function in addition.
The utility model content
The purpose of this utility model provides a kind ofly can present the type traction power set, this device is satisfying under the compatible prerequisite that requires of electrical network, can be moderate with existing tractive power supply system compatibility, cost, both can solve the technical matters that regenerative braking energy feedback and stable traction net are pressed, possess real-time static reactive power compensation ability again.
The utility model specifically provides a kind of specific embodiment that can present the type traction power set, a kind ofly can present the type traction power set, a kind ofly can present the type traction power set, comprise: multipleization voltage transformer, and the four quadrant convertor module that is no less than two, can present type traction power set and diode rectification traction unit is arranged in juxtaposition, the multipleization voltage transformer primary side that can present the type traction power set by high-tension switch cabinet with exchange medium voltage network and link to each other, the every cover winding of multipleization step down side all links to each other with a four quadrant convertor module AC side, can present the type traction power set and also comprise the DC side disconnector, four quadrant convertor module DC side is connected in parallel after connecting the DC side disconnector, is connected to dc bus again.
Can present the further embodiment of type traction power set as the utility model is a kind of, can present the type traction power set and comprise AC side disconnector and circuit breaker, between the AC side of multipleization step down side winding and each four quadrant convertor module, all be in series with AC side disconnector and circuit breaker; Four quadrant convertor module DC side is connected in parallel after connecting the DC side disconnector, links to each other with dc bus with the negative pole cabinet by direct-current switch cabinet again.
Can present the further embodiment of type traction power set as the utility model is a kind of, in the time presenting the type traction power set and be operated in traction mode or feedback pattern, can present the two closed loop control modules of the four quadrant convertor module controls device employing of type traction power set based on fuzzy control, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit adopts fuzzy control model.
Can present the further embodiment of type traction power set as the utility model is a kind of, in the time presenting the type traction power set and be operated in the SVG pattern, can present the two closed loop control modules of the four quadrant convertor module controls device employing of type traction power set based on the instantaneous power balance, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit adopts antisaturation PI adjustment module.
Can present the further embodiment of type traction power set as the utility model is a kind of, can present the former limit of multipleization voltage transformer of type traction power set and adopt triangular form connection, the voltage transformer of multipleization transformer adopting axial split formula structure.
Can present the further embodiment of type traction power set as the utility model is a kind of, 6 road IGBT trigging pulses that can present type traction power set four quadrant convertor module adopt phase-shifting carrier wave sinusoidal pulse width modulation mode, and each the four quadrant convertor module that can present the type traction power set all disposes a direct current air reactor.
By implementing a kind of specific embodiment that can present the type traction power set of the utility model, cooperate original diode rectification unit to realize traction power supply, the unnecessary regenerative braking energy feedback that guideway vehicle can be produced is to medium voltage network, can also when vehicle at night is stopped transport, bear the function of SVG, have energy-saving and environmental protection concurrently, inject multiple advantages such as harmonic wave is little, safe reliability is high, can realize step-less adjustment, dynamic response is good.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic circuit diagram of 1 one kinds of modular energy feedback type traction power sets of prior art and control system thereof;
Fig. 2 is the system architecture composition frame chart of prior art 2 urban track traffic braking energy inversion feedback systems;
The electrical connection diagram of Fig. 3 prior art 3 Sitras TCI of Siemens Company devices;
Fig. 4 is the connecting structure for electrical equipment block diagram that the utility model can be presented a kind of specific embodiment of type traction power set;
Fig. 5 is the circuit theory illustraton of model that the utility model can be presented a kind of specific embodiment four quadrant convertor of type traction power set module;
Fig. 6 is the vector controlled figure that the utility model can be presented the operation of a kind of specific embodiment four quadrant convertor of type traction power set module pure inductance characteristic;
Fig. 7 is the vector controlled figure that the utility model can be presented a kind of specific embodiment four quadrant convertor of type traction power set module unit power rectification operation;
Fig. 8 is the vector controlled figure that the utility model can be presented the pure capacitance characteristic operation of a kind of specific embodiment four quadrant convertor of type traction power set module;
Fig. 9 is the vector controlled figure that the utility model can be presented a kind of specific embodiment four quadrant convertor of type traction power set module unit power inverter operation;
Figure 10 is the structural principle block diagram that the utility model can be presented the voltage control outer shroud module of a kind of specific embodiment of type traction power set under traction or feedback mode of operation;
Figure 11 is the structural principle block diagram that the utility model can be presented ring module in the current control of a kind of specific embodiment of type traction power set under traction or feedback mode of operation;
Figure 12 is that the utility model can be presented the four quadrant convertor module controls structural principle block diagram of a kind of specific embodiment of type traction power set under the SVG mode of operation;
Wherein: 1-can present the type traction power set, 2-diode rectification traction unit, 3-high-tension switch cabinet, 4-direct-current switch cabinet, 5-negative pole cabinet, the original traction system of 6-, multipleization of 11-voltage transformer, 12-AC side disconnector group, 13-circuit breaker group, 14-four quadrant convertor module group, 15-DC side disconnector group, 21-multiwinding transformer, 22-PWM rectifier power source, the 23-central controller, 24-CAN network, 31-alternating-current switch, the 32-autotransformer, 33-thyristor unit, 34-reactor.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
, provided the utility model and can present the specific embodiment that the type traction power set is applied to city rail track traffic electric power system to shown in the accompanying drawing 12 as accompanying drawing 4, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Shown in the frame of broken lines of Fig. 4 first half, can be presented type traction power set power circuit block diagram for what the utility model specific embodiment proposed.Wherein, 1 for can present the type traction power set, and 2 are diode rectification traction unit, and 3 is high-tension switch cabinet, 4 is direct-current switch cabinet, 5 is the negative pole cabinet, and 6 is original traction system, and 11 is multipleization voltage transformer, 12 is AC side disconnector group, 13 is the circuit breaker group, and 14 is four quadrant convertor module group, and 15 is DC side disconnector group.AC side disconnector group 12 comprises QS1, QS2 ..., QSn, n AC side disconnector altogether; Circuit breaker group 13 comprises QF1, QF2 ..., QFn, n circuit breaker altogether; Four quadrant convertor module group 14 comprises four quadrant convertor module 1, four quadrant convertor module 2 ..., four quadrant convertor module n, n four quadrant convertor module altogether; DC side disconnector group 15 comprises QC1, QC2 ..., QCn, n DC side disconnector altogether.Can present type traction power set 1 and comprise 1 multipleization voltage transformer 11 and a plurality of four quadrant convertor module, the four quadrant convertor module is n in the specific embodiment, wherein n 〉=2.Package unit and traditional diode rectification unit are arranged in juxtaposition.Multipleization voltage transformer 11 primary sides that can present type traction power set 1 by high-tension switch cabinet QFac with to exchange medium voltage network continuous, the every cover winding of its low pressure side all links to each other with the AC side of a four quadrant convertor module, four-quadrant unsteady flow DC side is connected in parallel after connecting the DC side disconnector, links to each other with the DC traction bus with negative pole cabinet QCdc by direct-current switch cabinet QFdc again.Can present type traction power set 1 and further comprise AC side disconnector and circuit breaker, between the AC side of multipleization voltage transformer 11 low pressure side windings and each four quadrant convertor module, all be in series with AC side disconnector and circuit breaker.Four quadrant convertor module in the device all has been equipped with disconnector at its AC and DC, can log off when a certain heavy current transformer et out of order, does not influence the normal operation of other modules.The mode of operation of this system has 3 kinds: traction mode, feedback pattern and SV6 pattern.Original traction system 6 mainly comprises diode rectification traction unit 2 and traction transformer.The whole series can be presented the existing traction rectifier unit of type traction power set and power supply of city railway system and do not contacted directly, but are exchanging between medium voltage network and the DC traction net as the ad eundem hanging equipment.
The described type traction power set of presenting of the utility model specific embodiment is a kind of novel electric power electric equipment that is used for city rail tractive power supply system, it can cooperate original diode rectification unit to realize traction power supply, the unnecessary regenerative braking energy feedback that guideway vehicle can be produced is to medium voltage network, can also bear the function of SV6 when vehicle at night is stopped transport, be the energy-saving and environmental protection equipment that has multi-functional concurrently.Technical solutions of the utility model are not repelled original diode traction rectifier unit, but on its basis, increase and have the traction power set that to present function, purpose is to improve traction rectifier unit total external characteristics,, direct current net heavier when line load pressed when hanging down, supporting network is pressed as much as possible in the device proper range of capacity, and main traction function is still born by former diode traction rectifier unit.Device adopts multiple inverter configuration, and the harmonic content of injecting medium voltage network during operation is lower than national standard, has compatible preferably with medium voltage network.Device has selected medium voltage network as vehicle regenerative brake electric energy load point, compares feed-in low pressure (0.4kV) electrical network, and the medium voltage network capacity of short circuit is enough big, can effectively avoid the influence of highpowerpulse formula regenerated energy to the load point line voltage.If the feed-in low voltage network must have other power consumption equipment (as resistance) to guarantee that its voltage ripple of power network is in normal range.
This core that can present type traction power set 1 is a four-quadrant voltage-source type PWM current transformer, and the type current transformer has that power bi-directional flows and the controlled characteristic of power factor, when current transformer when electrical network is drawn electric energy, it runs on rectification state; When current transformer during to the electrical network feedback electric energy, system runs on the active inversion state; When the power factor of current transformer is non-1 the time, can provide functions such as active power filtering and reactive-load compensation to electrical network.Fig. 5 is the circuit theory illustraton of model of four quadrant convertor module.In the switching loss of not considering current transformer itself, can obtain by the power balance principle:
ui＝u
dci
dc (1)
U, i, u in the formula (1)
Dc, i
DcBe respectively AC side voltage in the precircuit, ac-side current, dc voltage and direct current and survey electric current.By formula (3.1) as seen:, just can control its direct current and survey by the AC side of controlling models circuit; Otherwise the DC side of controlling models circuit can realize the control of its AC side equally.
Under the lower state, ignore AC side resistance and PWM harmonic component, then the vector correlation of PWM AC side of converter can be represented with Fig. 9.Get the voltage on line side source voltage vector U of current transformer
iBe reference vector oo ', suppose that the DC side load of current transformer is constant, then the current phasor I of AC side of converter is also constant, therefore | and U
L|=ω L|I| immobilizes equally, and at this moment the end points path of motion of AC side voltage vector U has constituted one with | U
L| be the circle of radius, control vector U drops on the zones of different of this circle, just can realize the four quadrant running of current transformer, and is as shown in table 1.
Table 1PWM current transformer four quadrant running state table
In the time presenting type traction power set 1 and be operated in traction mode, device and original traction system 6 collaborative works improve the supplied character of diode rectification traction unit 2, and it is stable to keep DC bus-bar voltage in the rated capacity scope.This moment, the flow direction of energy was to flow to dc bus from exchanging medium voltage network, and the net side power factor of device is 1, and cooresponding vectogram as shown in Figure 7.
In the time presenting type traction power set 1 and be operated in the feedback pattern, device detects DC bus-bar voltage, when defining the threshold value that car brakeing and DC bus-bar voltage surpass to be provided with, enter the feedback pattern, this moment, device fed back to the interchange medium voltage network with unnecessary regenerating braking energy by each heavy IGBT PWM current transformer and multipleization voltage transformer 11.At this moment, the flow direction of energy is flow to exchange medium voltage network from the traction dc bus, and the power factor that exchanges the medium voltage network side is-1, and cooresponding vectogram as shown in Figure 9.
In the time presenting the type traction power set and be operated in the SVG pattern, device is kept apart automatic cutout DC side disconnector QC1-QCn with DC traction net and device, and operation does not exert an influence to SVG to guarantee the DC traction net.At this moment, device is as reactive power generator SVG, and compensation exchanges medium voltage network upper end reactive volt-amperes, and cooresponding vectogram such as Fig. 7 or shown in Figure 8 are so extremely Fig. 7 still is the power factor that Fig. 8 depends on compensation point.Device carries the SVG function, can not have car or the car low problem of power factor after a little while night with solving, and power supply of city railway system measure that this is taked at present to be volume add equipment such as SVC, FC compensates.Therefore adopt the described device cancellation of the utility model or significantly reduced compensation equipment.Device has adopted the two Closed loop Control based on the instantaneous power balance of instantaneous reactive current PI control in addition, compares advantage such as possess step-less adjustment, dynamic response is good with equipment such as SVC, FC.
In the time presenting type traction power set 1 and be operated in traction mode or feedback pattern, can present the two closed loop controls of the four quadrant convertor module controls device employing of type traction power set 1 based on fuzzy control, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit adopts fuzzy control method.In the time presenting type traction power set 1 and be operated in the SVG pattern, can present the two closed loop controls of the four quadrant convertor module controls device employing of type traction power set 1 based on the instantaneous power balance, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit adopts antisaturation PI regulative mode.
Can present the multipleization voltage transformer 11 former limits of type traction power set 1 and further adopt the triangular form connection, multipleization voltage transformer 11 adopts the voltage transformer of axial split formula structures, can guarantee that the high pressure side is that in the winding of former limit 3 times and 3 multiple subharmonic do not enter utility network.Especially adopt the voltage transformer of axial split formula structure, breaking down at certain cover voltage transformer secondary to influence the normal operation of other cover groups.
6 road IGBT trigging pulses that can present type traction power set 1 four quadrant convertor module adopt phase-shifting carrier wave sinusoidal pulse width modulation mode, and each the four quadrant convertor module that can present type traction power set 1 all disposes a direct current air reactor.Adopt phase-shifting carrier wave sinusoidal pulse width modulation technology, the switching frequency of the relevant rather than IGBT device of the computation speed of its modulating wave renewal frequency and control system, can reach tens kHz and even kHz up to a hundred, and whole harmonic wave index has greatly improved all with the control effect.Therefore, the whole harmonic wave index sample space vector pulse duration modulation that will be better than staggering the time.In addition aspect the unsteady flow block configuration; each module all carries a direct current air reactor; thereby delay DC current escalating rate under the failure condition, both can when the traction net is short-circuited the class fault, protect converter module, can when the module et out of order, reduce influence again traction system.
Be applied in a kind of exemplary embodiment of power supply of urban orbit traffic system as technical solutions of the utility model, running condition according to present power supply of city railway system, can present the type traction power set has the car operation time to be operated in traction and feedback pattern by day, does not have a car operation period at night and is operated in the SVG pattern.Can present the type traction power set and adopt two closed loop PWM four quadrant convertor control policies, be i.e. current inner loop, outer voltage control technology.Owing to have a plurality of current transformers of dc bus altogether, so system adopts the structure of ring in common voltage outer shroud, the separate current.
Be vdc outer shroud controller architecture as shown in figure 10, its core is the given fuzzy controller of electric current of each four quadrant convertor module active current command value of decision.Fuzzy control is a kind of of Based Intelligent Control, the reason of introducing fuzzy control herein is many on the circuit vehicle to be moved simultaneously, the tractive output that the different moment are reflected to the device installation place is all different with B.P., and the bad prediction of situation of change, the controlled variable that common PI regulates is by test, and compromise transient state and steady-state process are to reach a kind of satisfied effect, if obviously can influencing its control effect under big disturbance or microvariations, this therefore adopts the reflection relevant information that the general linear control policy can not be promptly and accurately, therefore adopt fuzzy control, it is advantageous that not needing to know system information control effectively under system's condition of service of broad with its number sequence model, has increased the robustness of system.
Vdc outer shroud control process may further comprise the steps:
S201: detect k DC traction net voltage constantly, and it is carried out LPF, filtered value exports the given fuzzy controller of electric current to;
S202: the given fuzzy controller of electric current obtains to calculate its absolute value, rate of change and change direction behind the DC traction net voltage behind the LPF, and according to fuzzy control logic and direct current command voltage
Size determine the k+1 total active current command value of four quadrant convertor module constantly
Determine each converter module k+1 active current command value constantly according to the number of four quadrant convertor module
The block diagram of ring controlling unit is as shown in figure 11 in each four quadrant convertor blocks current:
The current inner loop control process may further comprise the steps:
S101: detect alternating-current voltage/AC voltage and electric current that k exchanges the medium voltage network side constantly, and it is carried out bandpass filtering, filtered voltage is sent into and is calculated the electric network voltage phase angle in the phase-locked loop module, and filtered electric current then obtains piezoelectricity side active component of current i in the cooresponding k interchange constantly by coordinate transform
dWith reactive component i
q, what exchange medium voltage network side voltage acquisition is the original edge voltage of multipleization voltage transformer;
S102: active component i
d, reactive component i
q, respectively with the active current given value
The reactive component of current given value
Relatively, its difference is by pi regulator, and the control algorithm shown in the following formula obtains k+1 modulating wave command value V constantly
d, V
q
Wherein, i
d, i
qBe respectively the current on line side under synchronous rotating frame d and the q coordinate; e
d, e
qBe respectively the line voltage under synchronous rotating frame d and the q coordinate; V
d, V
qBe respectively the rectifier voltage on line side under synchronous rotating frame d and the q coordinate; v
DcBe dc voltage;
S103: to modulating wave command value V
d, V
qCompare with the currency of corresponding carriers, thus the trigging pulse that output four quadrant convertor module is used.
The control policy that four quadrant convertor module as shown in figure 12 operates under static reactive producer (SVG) pattern is: the main purpose when device moves as SVG is that control traction system medium voltage network access point (A point as shown in Figure 4) is located power factor, just controls or compensate the reactive component of current at this access point place.For the reactive component of current minimum that A is ordered, then by gathering the electric current that A is ordered, utilize the instantaneous reactive theory to gain merit and the decomposition of reactive component of current obtains its reactive component of current, because the SVG access point is behind the A point, so comprised the electric current that SVG sends in the electric current that A is ordered, therefore the control to A point reactive component of current has formed a closed loop naturally, regulate the target reactive component of current amount that SVG will send that obtains by PI to A point reactive component of current, in conjunction with two closed loop control strategies, carry out two closed loop controls again to reactive component of current based on the instantaneous power balance.
Compare with the feedback pattern with aforementioned traction, when device is operated in SVG pattern following time, mode has 2 differences:
(1) control system still adopts the structure of ring in common voltage outer shroud, the separate current, but the direct current outer shroud is regulated and is adopted traditional antisaturation pi regulator, reason is after the DC side isolation knife disconnects, device DC side and DC traction net are not got in touch, therefore the system disturbance that does not exist the DC traction guipure to go into adopts pi regulator to regulate.
(2) the reactive component of current component instruction value of each four-quadrant PWM current transformer
No longer be 0, it is by compensation point (A point as shown in Figure 4) electric current is carried out obtaining after sampling filter and the coordinate transform, and the effect of device also compensates the reactive volt-amperes of this point just, improves its power factor.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore; every content that does not break away from technical solutions of the utility model; according to technical spirit of the present utility model to any simple modification that above embodiment did, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solutions of the utility model protect.
Claims (9)
1. can present the type traction power set for one kind, it is characterized in that: comprise multipleization voltage transformer (11), and the four quadrant convertor module that is no less than two, can present type traction power set (1) is arranged in juxtaposition with diode rectification traction unit (2), multipleization voltage transformer (11) primary side that can present the type traction power set by high-tension switch cabinet (3) with to exchange medium voltage network continuous, the every cover winding of multipleization voltage transformer (11) low pressure side all links to each other with a four quadrant convertor module AC side, the described type traction power set (1) of presenting also comprises the DC side disconnector, four quadrant convertor module DC side is connected in parallel after connecting DC side disconnector (15), is connected to dc bus again.
2. according to claim 1ly a kind ofly can present the type traction power set, it is characterized in that: the described type traction power set (1) of presenting comprises AC side disconnector and circuit breaker, all is in series with AC side disconnector and circuit breaker between the AC side of multipleization voltage transformer (11) low pressure side winding and each four quadrant convertor module.
3. according to claim 1 and 2ly a kind ofly can present the type traction power set, it is characterized in that: described four quadrant convertor module DC side is connected in parallel after connecting the DC side disconnector, links to each other with dc bus with negative pole cabinet (5) by direct-current switch cabinet (4) again.
4. according to claim 2ly a kind ofly can present the type traction power set, it is characterized in that: when described can present type traction power set (1) and be operated in traction mode or feedback pattern the time, the four quadrant convertor module controls device that can present type traction power set (1) is the two closed loop control modules based on fuzzy control, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit is a fuzzy control model.
5. according to claim 2ly a kind ofly can present the type traction power set, it is characterized in that: when described can present type traction power set (1) and be operated in the SVG pattern time, the four quadrant convertor module controls device that can present type traction power set (1) is the two closed loop control modules based on the instantaneous power balance, control setup comprises current inner loop controlling unit and outer voltage controlling unit, all four quadrant convertor module common voltage outer shroud controlling units, each four quadrant convertor module all has independently current inner loop controlling unit, and the outer voltage controlling unit adopts antisaturation PI adjustment module.
6. a kind ofly can present the type traction power set according to arbitrary claim in the claim 1,2,4,5 is described, it is characterized in that: the triangular form connection is adopted on the described former limit of multipleization voltage transformer (11) that can present type traction power set (1).
7. according to claim 6ly a kind ofly can present the type traction power set, it is characterized in that: described multipleization voltage transformer (11) adopts the voltage transformer of axial split formula structure.
8. according to claim 6ly a kind ofly can present the type traction power set, it is characterized in that: described 6 road IGBT trigging pulse generation modules that can present type traction power set (1) four quadrant convertor module are phase-shifting carrier wave sinusoidal pulse width modulation module.
9. according to claim 6ly a kind ofly can present the type traction power set, it is characterized in that: described each the four quadrant convertor module that can present type traction power set (1) all disposes a direct current air reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201438265U CN202046214U (en) | 2011-05-09 | 2011-05-09 | Energy-fed traction power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201438265U CN202046214U (en) | 2011-05-09 | 2011-05-09 | Energy-fed traction power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202046214U true CN202046214U (en) | 2011-11-23 |
Family
ID=44986535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201438265U Expired - Lifetime CN202046214U (en) | 2011-05-09 | 2011-05-09 | Energy-fed traction power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202046214U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267405A (en) * | 2011-05-09 | 2011-12-07 | 株洲变流技术国家工程研究中心有限公司 | Energy feeding type dragging power supply device and control method thereof |
| CN102431469A (en) * | 2011-12-22 | 2012-05-02 | 南车株洲电力机车有限公司 | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device |
| CN103434420A (en) * | 2013-07-29 | 2013-12-11 | 华北电力大学（保定） | Braking energy recovery type DC (Direct Current) traction power supply system basing on electric automobile charging |
| CN103715927A (en) * | 2013-12-31 | 2014-04-09 | 山东新风光电子科技发展有限公司 | Regenerative brake absorption device based on inverter |
| CN103863140A (en) * | 2014-02-12 | 2014-06-18 | 西南交通大学 | Electric energy feedback identification device for direct-current traction system |
| CN104022630A (en) * | 2014-04-29 | 2014-09-03 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional hybrid traction power supply system and control method |
| CN104340085A (en) * | 2014-10-28 | 2015-02-11 | 株洲时代装备技术有限责任公司 | Urban rail medium voltage energy feedback power supply method and device with ring current eliminating function |
| CN104836252A (en) * | 2015-05-05 | 2015-08-12 | 中铁电气化勘测设计研究院有限公司 | Urban rail transit medium-voltage inverter type renewable energy utilization device |
| CN106100000A (en) * | 2016-07-08 | 2016-11-09 | 许继集团有限公司 | Converter plant, urban rail tractive power supply system and control method thereof |
| CN107565542A (en) * | 2017-09-26 | 2018-01-09 | 天津电力机车有限公司 | A kind of quiet tune power-supply system of urban rail |
| CN109038630A (en) * | 2018-08-16 | 2018-12-18 | 洁电（北京）储能科技有限公司 | A kind of ferroelectric power supply system and control method with energy storage ancillary service function |
| CN109149634A (en) * | 2018-08-29 | 2019-01-04 | 沈阳微控新能源技术有限公司 | Regeneration energy recycling system and control method based on flywheel energy storage and inversion feedback |
| CN109703417A (en) * | 2018-11-14 | 2019-05-03 | 中铁第四勘察设计院集团有限公司 | The harmonic suppression apparatus and vehicle traction power set of DC voltage |
| CN109968991A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN109968992A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN110492507A (en) * | 2019-07-11 | 2019-11-22 | 北京交通大学 | The energy compatibility system of electric railway |
| CN111146823A (en) * | 2019-12-18 | 2020-05-12 | 北京交通大学 | High-voltage direct-current urban rail transit traction power supply system |
-
2011
- 2011-05-09 CN CN2011201438265U patent/CN202046214U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267405A (en) * | 2011-05-09 | 2011-12-07 | 株洲变流技术国家工程研究中心有限公司 | Energy feeding type dragging power supply device and control method thereof |
| CN102431469A (en) * | 2011-12-22 | 2012-05-02 | 南车株洲电力机车有限公司 | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device |
| CN102431469B (en) * | 2011-12-22 | 2013-10-09 | 南车株洲电力机车有限公司 | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device |
| CN103434420A (en) * | 2013-07-29 | 2013-12-11 | 华北电力大学（保定） | Braking energy recovery type DC (Direct Current) traction power supply system basing on electric automobile charging |
| CN103434420B (en) * | 2013-07-29 | 2016-02-17 | 华北电力大学（保定） | Based on the Brake energy recovery formula DC traction power-supply system of charging electric vehicle |
| CN103715927A (en) * | 2013-12-31 | 2014-04-09 | 山东新风光电子科技发展有限公司 | Regenerative brake absorption device based on inverter |
| CN103863140B (en) * | 2014-02-12 | 2016-01-20 | 西南交通大学 | A kind of DC traction system back electrical energy device for identifying |
| CN103863140A (en) * | 2014-02-12 | 2014-06-18 | 西南交通大学 | Electric energy feedback identification device for direct-current traction system |
| CN104022630B (en) * | 2014-04-29 | 2015-12-02 | 株洲变流技术国家工程研究中心有限公司 | A kind of multi-functional mixed type tractive power supply system and control method |
| CN104022630A (en) * | 2014-04-29 | 2014-09-03 | 株洲变流技术国家工程研究中心有限公司 | Multifunctional hybrid traction power supply system and control method |
| CN104340085A (en) * | 2014-10-28 | 2015-02-11 | 株洲时代装备技术有限责任公司 | Urban rail medium voltage energy feedback power supply method and device with ring current eliminating function |
| CN104340085B (en) * | 2014-10-28 | 2016-08-24 | 株洲时代装备技术有限责任公司 | A kind of urban rail medium-pressure type with circulation elimination function can present method of supplying power to and device |
| CN104836252A (en) * | 2015-05-05 | 2015-08-12 | 中铁电气化勘测设计研究院有限公司 | Urban rail transit medium-voltage inverter type renewable energy utilization device |
| CN106100000A (en) * | 2016-07-08 | 2016-11-09 | 许继集团有限公司 | Converter plant, urban rail tractive power supply system and control method thereof |
| CN107565542A (en) * | 2017-09-26 | 2018-01-09 | 天津电力机车有限公司 | A kind of quiet tune power-supply system of urban rail |
| CN109968992A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN109968991A (en) * | 2017-12-27 | 2019-07-05 | 比亚迪股份有限公司 | DC traction power-supply system and its control method for rail traffic |
| CN109038630A (en) * | 2018-08-16 | 2018-12-18 | 洁电（北京）储能科技有限公司 | A kind of ferroelectric power supply system and control method with energy storage ancillary service function |
| CN109038630B (en) * | 2018-08-16 | 2023-11-21 | 青海能高新能源有限公司 | Electric iron power supply system with energy storage auxiliary service function and control method |
| CN109149634A (en) * | 2018-08-29 | 2019-01-04 | 沈阳微控新能源技术有限公司 | Regeneration energy recycling system and control method based on flywheel energy storage and inversion feedback |
| CN109703417A (en) * | 2018-11-14 | 2019-05-03 | 中铁第四勘察设计院集团有限公司 | The harmonic suppression apparatus and vehicle traction power set of DC voltage |
| CN110492507A (en) * | 2019-07-11 | 2019-11-22 | 北京交通大学 | The energy compatibility system of electric railway |
| CN111146823A (en) * | 2019-12-18 | 2020-05-12 | 北京交通大学 | High-voltage direct-current urban rail transit traction power supply system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202046214U (en) | Energy-fed traction power supply device | |
| CN102267405B (en) | Energy feeding type dragging power supply device and control method thereof | |
| Cheng et al. | Overview of resilient traction power supply systems in railways with interconnected microgrid | |
| CN104410095B (en) | The same electric power system that connects of ac electrified railway based on multi-terminal HVDC transmission | |
| CN105210277B (en) | HVDC (HVDC) converter system and its operating method | |
| CN103457261B (en) | Power quality integrated management device of electrified railway traction supply network | |
| CN110341728B (en) | Electrified railway through-type traction power supply system | |
| CN103928928B (en) | A kind of high-speed railway quality of power supply and supply conductor voltage comprehensive compensation system | |
| CN105584386B (en) | A kind of module-cascade formula can present type traction power set and its control method | |
| CN103895534B (en) | Double-current system traction power supply system based on modularized multi-level current converter | |
| CN102810870B (en) | Electromagnetic hybrid device and method for synergetic compensation of high-speed railway multi-station electric energy quality | |
| CN106953332B (en) | Electrified railway in-phase power supply scheme based on uncontrollable rectifier and step doping inversion | |
| CN106374516A (en) | Establishing method for generalized polymerization distributed type energy storage system | |
| CN205395811U (en) | Module is cascaded formula and can be presented type and draw power supply unit | |
| CN203027153U (en) | Universal smart power grid power electronic device | |
| CN105450035B (en) | A kind of single phase model forecast Control Algorithm of MMC formulas rail traction power governor | |
| CN203039373U (en) | Out-phase and in-phase compatible integration compensation device of Vv wiring traction substation | |
| CN203774792U (en) | High speed railway power quality and traction network voltage integration compensation system | |
| Che et al. | An effective utilization scheme for regenerative braking energy based on power regulation with a genetic algorithm | |
| CN203592908U (en) | Direct current-alternating current traction power supply system | |
| Li et al. | Traction power supply system of China high-speed railway under low-carbon target: Form evolution and operation control | |
| CN204465022U (en) | A kind of direct-flow distribution system based on modularization multi-level converter | |
| CN209200956U (en) | A kind of high-power thyristor type traction rectifier braking inversion Bidirectional variable-flow system | |
| CN102280880A (en) | Electrical energy quality management device of electrified railway with differentiated compensation | |
| Wu et al. | Study on railway unified power quality controller based on STATCOM technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHUZHOU TIMES EQUIPMENT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHUZHOU NATIONAL ENGINEERING RESEARCH CENTER OF CONVERTERS CO., LTD. Effective date: 20140410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140410 Address after: 412001 Hunan Province, Zhuzhou Shifeng District Tian North Road No. 169 times Patentee after: ZHUZHOU TIMES EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 412001 Hunan Province, Zhuzhou Shifeng District Tian North Road No. 169 times Patentee before: ZHUZHOU NATIONAL ENGINEERING RESEARCH CENTER OF CONVERTERS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 412001 Hunan Province, Zhuzhou Shifeng District Tian North Road No. 169 times Patentee after: ZHUZHOU CRRC TIMES EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 412001 Hunan Province, Zhuzhou Shifeng District Tian North Road No. 169 times Patentee before: ZHUZHOU TIMES EQUIPMENT TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171212 Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: 412001 Hunan Province, Zhuzhou Shifeng District Tian North Road No. 169 times Patentee before: ZHUZHOU CRRC TIMES EQUIPMENT TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
|
| CX01 | Expiry of patent term |