CN103158566B - Alternating current transmission system - Google Patents
Alternating current transmission system Download PDFInfo
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- CN103158566B CN103158566B CN201310085669.0A CN201310085669A CN103158566B CN 103158566 B CN103158566 B CN 103158566B CN 201310085669 A CN201310085669 A CN 201310085669A CN 103158566 B CN103158566 B CN 103158566B
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- alternating current
- main generator
- unsteady flow
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- flow module
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention provides an alternating current transmission system. The alternating current transmission system comprises a main generator, a variable flow module and an excitation module, wherein the main generator is used for generating and outputting alternating current; the variable flow module is used for conducting variable flow processing to the alternating current generated by the main generator, outputting the alternating current which fits in with a traction motor nominal standard and is obtained after being processed to a traction motor and outputting the alternating current which fits in with an auxiliary assembly nominal standard and is obtained after being processed to an auxiliary assembly; the excitation module is used for receiving the alternating current output by the main generator, converting the alternating current into exciting current and outputting the exciting current to the main generator; the output power of the main generator is controlled through the exciting current.
Description
Technical field
Guideway vehicle technical field of the present invention, particularly a kind of alternating current drive system.
Background technology
Current, guideway vehicle is in inside, a lot of large size city and play key effect between city and city always.This noun covering scope of rail vehicle is widely, of a great variety; Comprise motor train unit, city railway, subway, light rail transit, magnetic suspension circuit, airport contact railway etc.New-type guideway vehicle often using electric power as the energy, therefore current rail vehicle have energy-conservation, economize ground, freight volume large, round-the-clock, pollution-free (or of low pollution) advantage such as safety again, belong to environmental protection railway and highway system, meet the principle of sustainable development.And as its name suggests, namely guideway vehicle is the mode of transportation that vehicle and track run, so substantially can not be subject to the impact of traffic congestion, in the big city that traffic pressure is heavy, it is more fast efficient that it compares automotive traffic.And along with the progress of each side technology, the correlation technique of guideway vehicle also to safer, direction is constantly perfect faster, as much as possible for civic trip brings larger convenience.
The guideway vehicle of traditional dependence electric power, often adopts the form of DC drive, namely relies on direct current (DC) to be that the traction motor of guideway vehicle is powered, thus produces the form that tractive force promotes vehicle.But Traditional DC traction motor is due to structure, and power receives restriction, there is technical bottleneck in power ascension; And DC traction motor load characteristic is softer, utilization of adhesion is on the low side; Along with the development of guideway vehicle technology, DC drive and DC traction motor more and more can not meet actual demand.
Along with the high speed development of electronics package, the AC Drive Technology in guideway vehicle progressively occurs, and obtains fast speed development.AC Drive and corresponding AC traction electric motor can overcome the technical bottleneck on power ascension, and have good load characteristic and utilization of adhesion, have become following development tendency.
According to the real work situation of guideway vehicle, the alternating-current actuating system be applied in the middle of guideway vehicle is mainly powered to two parts assembly.Part assembly and traction motor itself, another part assembly is the auxiliary electrical assembly such as traction motor blower, Air compressor, cooling fan and other auxiliary ventilators, air-conditioning machine for Locomotive, locomotive living electricity consumption.In existing alternating-current actuating system, electrical generator is that two parts assembly is powered respectively, and an auxiliary generator even can be set up separately specially for accessory part is powered.Mainly there is following defect in the alternating-current actuating system that existing traction motor is separated with accessory part: the alternating-current actuating system of Separation of main work and non-main work be not easy to the system integration, structure installment and maintenance and parts general, usage degree is lower; Accessory part, from main generator power taking or the layout arranging independently auxiliary generator, can increase the weight of guideway vehicle, improves the manufacturing cost of vehicle and runs burden; In addition, the driving system of separation must be that the power supply of accessory part arranges how extra inverter, also increases complexity and the cost of whole system.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of alternating current drive system, described system is powered for traction motor and accessory part by an electrical generator simultaneously, achieves the integration power supply of alternating current drive system for full car.
For achieving the above object, the present invention has following technical scheme:
A kind of alternating current drive system, described system comprises following:
Main generator, to export for generation of alternating current;
Unsteady flow module, carries out unsteady flow process for the alternating current produced main generator; Export the alternating current meeting traction motor nominal standard obtained after process to traction motor; Export the alternating current meeting accessory part nominal standard obtained after process to accessory part;
Excitation module, for receiving the alternating current of main generator output and being converted to exciting current, exports exciting current to main generator; The horsepower output of main generator is controlled by described exciting current.
Described unsteady flow module specifically comprises:
Rectification unit, the alternating current exported for main generator is converted to direct current (DC);
Traction invertor, for described direct current (DC) being converted to the alternating current meeting traction motor nominal standard, and exports traction motor to;
Subordinate inverter, for described direct current (DC) being converted to the alternating current meeting accessory part nominal standard, and exports accessory part to.
Described system comprises two unsteady flow modules in parallel, be respectively the first unsteady flow module and the second unsteady flow module, each unsteady flow module is that multiple traction motors of a bogie truck are powered, then the quantity of described traction invertor is the quantity equaling traction motor in a bogie truck.
Described unsteady flow module also comprises:
Contact switch, for disconnecting when fault, isolates this unsteady flow module;
DC loop unit, for carrying out fault detection, monitoring, filtering to unsteady flow module, and receives the feedback current of traction invertor;
Braking resistor, for by the feedback current of described traction invertor with the form consumption of heat energy.
Described accessory part specifically comprises:
Cooling blower, Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan, dust exhausting fan.
The subordinate inverter that described first unsteady flow module comprises is the first subordinate inverter, and the subordinate inverter that the second unsteady flow module comprises is the second subordinate inverter, concrete;
First subordinate inverter is to cooling blower output AC electricity;
Second subordinate inverter is to Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan and dust exhausting fan output AC electricity.
Described system also comprises:
3rd subordinate inverter, for described direct current (DC) being converted to the alternating current meeting battery charger nominal standard, and exports battery charger to;
Battery charger, it is battery charge that the alternating current for the 3rd subordinate inverter being exported converts direct current (DC) to;
Storage battery, for storage of electrical energy, and discharges electric energy in described main generator variable frequency starting process.
Described storage battery lotus root connects described DC loop unit and traction invertor; Then in the process of main generator variable frequency starting, described storage battery is powered to main generator by DC loop unit and traction invertor, makes main generator complete variable frequency starting.
Described first subordinate inverter, the second subordinate inverter and the 3rd subordinate inverter redundancy each other.
Described system also comprises:
Standard converter, lotus root connects described battery charger, and the direct current (DC) for being exported by described battery charger is converted to standard household electricity.
Described main generator is specially double-winding motor, and each winding is to a unsteady flow module output AC electricity.
Described excitation module lotus root connects subordinate inverter, or described excitation module lotus root connects main generator.
Described unsteady flow module also comprises:
Row, for unit, for described direct current (DC) being converted to the alternating current meeting specific criteria, and export Lighting System and the heating system of vehicle to.
Described system comprises well:
Control module, for sending controling instruction, with the operation of other each several part of control system.
As seen through the above technical solutions, there is following beneficial effect in the present invention: utilize described unsteady flow module to provide for vehicle traction motors and accessory part the electric current meeting its nominal standard respectively, achieves the alternating current drive of integration; Make the integrated level of described system higher, and the commonality of parts is stronger, is convenient to installation and the maintenance of structure; In system described in the present embodiment, accessory part no longer needs utilize special device from main generator power taking or arrange independently auxiliary generator, simplifies the layout of electrical generator in vehicle, reduces the weight of guideway vehicle, manufacturing cost and runs burden; And decrease the quantity of inverter as much as possible, the layout in train space of being more convenient for.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is system architecture schematic diagram described in the embodiment of the present invention;
Fig. 2 is system architecture schematic diagram described in another embodiment of the present invention;
Fig. 3 is the workflow schematic diagram in track vehicle travel process of system described in the embodiment of the present invention;
Fig. 4 is the workflow schematic diagram in rail vehicle braking process of system described in the embodiment of the present invention;
Fig. 5 is the workflow schematic diagram in main generator variable frequency starting process of system described in the embodiment of the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Shown in Figure 1, be a specific embodiment of alternating current drive system of the present invention.The present embodiment is a basic embodiment of system of the present invention, in the present embodiment, only with the source of a main generator for output electric energy, described unsteady flow module provides the alternating current of specific voltage grade simultaneously to traction motor and accessory part, achieve the integration power supply for traction motor and accessory part.In the present embodiment, described system comprises following:
Main generator, to export for generation of alternating current.
Main generator described in the present embodiment is the unique apparatus producing electric energy, and the power source of described traction motor and accessory part is main generator.
Unsteady flow module, carries out unsteady flow process for the alternating current produced main generator; Export the alternating current meeting traction motor nominal standard obtained after process to traction motor; Export the alternating current meeting accessory part nominal standard obtained after process to accessory part.
The alternating current produced in main generator due to the difference of frequency and voltage grade, cannot by described traction motor and accessory part utilize.So first main generator need export alternating current to unsteady flow module, described unsteady flow module will carry out unsteady flow process to described alternating current targetedly, adjust frequency and the voltage class of described alternating current.
In the present embodiment, described alternating current for the process of this alternating current mainly for two parts, and traction motor and accessory part.Under the background of alternating current drive of the present invention, above-mentioned two parts are all with AC-powered, but the grade of rated voltage of source of AC needed for the two and frequency generally exist larger difference.So in the present embodiment, described unsteady flow module processes the alternating current that main generator produces targetedly, exports the alternating current meeting traction motor nominal standard obtained after process to traction motor; Export the alternating current meeting accessory part nominal standard obtained after process to accessory part.
Excitation module, for receiving the alternating current of main generator output and being converted to exciting current, exports exciting current to main generator; The horsepower output of main generator is controlled by described exciting current.
Excitation is generator unit stator and provides electric current, and making stator produce the process in magnetic field, is a groundwork of generator operation.So excitation module of the present invention is a requisite supplemental functionality in described main generator operational process.
In the present embodiment, the excitation mode of described main generator is self-excitation, and the electric current namely utilizing main generator itself to export is as the exciting current of self stator.Namely the function of described excitation module receives the outgoing current of main generator and is converted into exciting current, described exciting current is supplied to the stator of main generator.
Visible by above technical scheme, the beneficial effect that system described in the present embodiment exists utilizes described unsteady flow module to provide for vehicle traction motors and accessory part the electric current meeting its nominal standard respectively, achieves the alternating current drive of integration; Make the integrated level of described system higher, and the commonality of parts is stronger, is convenient to installation and the maintenance of structure; In system described in the present embodiment, accessory part no longer needs utilize special device from main generator power taking or arrange independently auxiliary generator, simplifies the layout of electrical generator in vehicle, reduces the weight of guideway vehicle, manufacturing cost and runs burden.
Shown in Figure 2, another specific embodiment of system of the present invention, in the present embodiment on basis embodiment illustrated in fig. 1, has made the concrete form of described unsteady flow module and having described more specifically.In the present embodiment, described system comprises two unsteady flow modules in parallel, is respectively the first unsteady flow module and the second unsteady flow module, and each unsteady flow module is that multiple traction motors of a bogie truck are powered.Described bogie truck is the vitals supporting car body, and bogie truck bears and transmits from load various between car body and wheel and application force.In different guideway vehicles, the wheel that a bogie truck comprises is different to quantity; But it is right that the bogie truck of present stage generally comprises 2-3 wheel, namely four-shaft steering and six axle bogies; For six axle bogies in the present embodiment.In six axle bogies, take turns arranging a traction motor for each, that is, six axle bogies comprise 3 traction motors.
Described in the present embodiment, system is specific as follows:
Main generator, to export for generation of alternating current.In the present embodiment, the function of described main generator with embodiment illustrated in fig. 1 in consistent.
Unsteady flow module, carries out unsteady flow process for the alternating current produced main generator; Export the alternating current meeting traction motor nominal standard obtained after process to traction motor; Export the alternating current meeting accessory part nominal standard obtained after process to accessory part.
In the present embodiment, described unsteady flow module is divided into the first unsteady flow module and the second unsteady flow module, and the two substantially for being symmetrical arranged, only exists difference arranging of a subordinate inverter from a structural point.In the present embodiment, described unsteady flow module specifically comprises following:
Rectification unit, the alternating current exported for main generator is converted to direct current (DC);
First the alternating current that unsteady flow module receives carries out AC-DC conversion through described rectification unit, to carry out next step process for the direct current after conversion.In the present embodiment, the hardcore device of described rectification unit can adopt the uncontrollable rectifying device of three-phase.
Traction invertor, for described direct current (DC) being converted to the alternating current meeting traction motor nominal standard, and exports traction motor to.
Described traction invertor and the device for changing also output AC electricity for traction motor.In the present embodiment, the quantity of described traction invertor equals the quantity of traction motor in a bogie truck, and namely a unsteady flow module comprises three traction invertors, and each traction invertor is that a traction motor is powered.In the present embodiment, described traction invertor adopts variable-frequency variable-voltage inverter (VVVF inverter).
Subordinate inverter, for described direct current (DC) being converted to the alternating current meeting accessory part nominal standard, and exports accessory part to.
In the present embodiment, described accessory part specifically comprises: cooling blower, Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan, dust exhausting fan.In the power supply process for above-mentioned many accessory parts, there is certain division of labor in two unsteady flow modules.
The subordinate inverter that described first unsteady flow module comprises is the first subordinate inverter, and the subordinate inverter that the second unsteady flow module comprises is the second subordinate inverter, concrete; First subordinate inverter is to cooling blower output AC electricity; Second subordinate inverter is to Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan and dust exhausting fan output AC electricity.
According to the difference of above-mentioned function, the first subordinate inverter described in the present embodiment takes variable-frequency variable-voltage inverter (VVVF inverter); Described second subordinate inverter takes constant frequency and constant voltage inverter (CVCF inverter).
Contact switch, for disconnecting when fault, isolates this unsteady flow module.
In the present embodiment, the first current transforming unit and the second current transforming unit are independent of one another, when the two one of et out of order, then can by described contact switch by whole for the current transforming unit of fault isolation, to prevent the extension of fault.
DC loop unit, for carrying out fault detection, monitoring, filtering to unsteady flow module, and receives the feedback current of traction invertor.
The position of DC loop unit is between described rectification unit and inverter, and its concrete structure can be presented as various ways, not uniquely.The unit of DC loop described in the present embodiment specifically comprises an earthing detection subelement, a filter capacitor and a voltage sensor; Described earthing detection sub-unit structure comprises the grounding resistance of two series connection, causes voltage imbalance for detecting in unsteady flow modular circuit whether to break down; Described filter capacitor plays the effect of filtering to direct current (DC); Described voltage sensor is used for the voltage condition in observation circuit.
Braking resistor, for by the feedback current of described traction invertor with the form consumption of heat energy.
When guideway vehicle is in braking mode, then traction invertor is no longer for traction motor output AC electricity is to provide tractive force.So in this course in traction invertor one part of current can reflux.Namely the electric energy of this partial reflux enters in the middle of braking resistor, and this part electric energy consumes with the form of heat energy by braking resistor.
Excitation module, for receiving the alternating current of main generator output and being converted to exciting current, exports exciting current to main generator; The horsepower output of main generator is controlled by described exciting current.In the present embodiment, described excitation module can connect subordinate inverter by lotus root, receives the alternating current of subordinate inverter output and is converted into exciting current; Or described excitation module lotus root connects main generator, the alternating current that main generator exports is converted to exciting current.
In the present embodiment, because the excitation mode of self-excitation taked by main generator, at the beginning of startup, excitation module can not provide exciting current to main generator, at once so the invention still further relates to about the motor-driven related art scheme of main generator frequency conversion.For this reason, in the present embodiment, described system also comprises:
3rd subordinate inverter, for described direct current (DC) being converted to the alternating current meeting battery charger nominal standard, and exports battery charger to.
Battery charger, it is battery charge that the alternating current for the 3rd subordinate inverter being exported converts direct current (DC) to.
Storage battery, for storage of electrical energy, and discharges electric energy in described main generator variable frequency starting process.
In the process of main generator variable frequency starting, storage battery provides the electric energy needed for startup to main generator, until main generator completes variable frequency starting.And described 3rd subordinate inverter and battery charger are the necessary assembly to battery charge.Described storage battery lotus root connects described DC loop unit and traction invertor; Then in the process of main generator variable frequency starting, described storage battery is powered to main generator by DC loop unit and traction invertor, makes main generator complete variable frequency starting.
In addition, in the present embodiment, described system also comprises following preferred version:
In the present embodiment, described first subordinate inverter, the second subordinate inverter and the 3rd subordinate inverter redundancy each other.As shown in Figure 2 in circuit, three subordinate inverter adopt the setting of redundancy each other, and during subordinate inverter fault a certain with box lunch, other two subordinate inverter are temporarily replaced the subordinate inverter work of fault, avoid the normal operation of system to receive impact.
In the present embodiment, described system can also comprise:
Standard converter, lotus root connects described battery charger, and the direct current (DC) for being exported by described battery charger is converted to standard household electricity.Described standard household electricity, at China and 220V alternating current.The civilian electricity of standard converter outputting standard can be powered to the a/c system in vehicle, or provides household electricity to passenger.
Row, for unit, for described direct current (DC) being converted to the alternating current meeting specific criteria, and export Lighting System and the heating system of vehicle to.Described row for unit set-up mode in systems in which substantially with the first subordinate inverter or the second subordinate inverter similar.Described Lighting System and heating system are generally arranged in passenger vehicle, and on load carrying vehicle, arrange row for unit, and what can mate arranges Lighting System and heating system, achieve the general of load carrying vehicle and passenger vehicle.
Control module, for sending controling instruction, with the operation of other each several part of control system.
Control module can realize based on computer system, is controlled more accurately system of the present invention by described control module.
In addition, main generator described in the present embodiment can adopt double-winding motor, and each winding is to a unsteady flow module output AC electricity.Thus two bogie trucks realized truly control separately separately.For the embody rule environment that power demand is large, double-winding motor can meet its power demand fully.
On basis embodiment illustrated in fig. 1, the beneficial effect that the present embodiment exists further is: described in the present embodiment, system solution is more complete, and open more abundant, safety, stability and applicability all exist obvious lifting; The setting of described three subordinate inverter, namely achieves the power supply for whole accessory part and storage battery, decreases the quantity of inverter as much as possible, the layout in train space of being more convenient for.
Below in conjunction with system described in embodiment illustrated in fig. 2, guideway vehicle is normally travelled, under variable frequency starting and braking three kinds of motoring conditions, the mode of operation of described alternating current drive system is specifically described.
Shown in Figure 3, under the normal motoring condition of guideway vehicle, the workflow schematic diagram of system of the present invention.Under the state of normal vehicle operation, main generator produces alternating current and exports rectification unit to, by rectification unit, alternating current is converted to direct current (DC), and exports direct current (DC) to each inverter through DC loop unit; Wherein traction invertor is powered into traction motor after being changed by direct current (DC), and direct current (DC) is changed backward accessory part and powered by subordinate inverter, and auxiliary converter also need be powered to excitation module and will be battery charge.
Schematic diagram for working-flow described in rail vehicle braking process shown in Figure 4.Braking procedure compares normal driving process, the mode of operation of subordinate inverter does not change, difference is that in braking procedure, traction invertor no longer provides electric energy to pulling electric generator, but the electric energy of surplus is imported braking resistor, makes braking resistor with the power consumption of the form of heat energy by surplus.
Shown in Figure 5, in guideway vehicle variable frequency starting process, the schematic diagram of described working-flow.In the process of variable frequency starting, storage battery connects DC loop module by lotus root and exports direct current (DC), and carries out AC-DC conversion by described traction invertor, and final output AC electricity is main generator excitation, drives main generator to complete the process of variable frequency starting.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. an alternating current drive system, is characterized in that, described system comprises following:
Main generator, to export for generation of alternating current;
Unsteady flow module, carries out unsteady flow process for the alternating current produced main generator; Export the alternating current meeting traction motor nominal standard obtained after process to traction motor; Export the alternating current meeting accessory part nominal standard obtained after process to accessory part;
Excitation module, for receiving the alternating current of main generator output and being converted to exciting current, exports exciting current to main generator; The horsepower output of main generator is controlled by described exciting current;
Described system comprises two unsteady flow modules in parallel, be respectively the first unsteady flow module and the second unsteady flow module, each unsteady flow module is that multiple traction motors of a bogie truck are powered, then the quantity of described traction invertor is the quantity equaling traction motor in a bogie truck.
2. system according to claim 1, it is characterized in that, described unsteady flow module specifically comprises:
Rectification unit, the alternating current exported for main generator is converted to direct current (DC);
Traction invertor, for described direct current (DC) being converted to the alternating current meeting traction motor nominal standard, and exports traction motor to;
Subordinate inverter, for described direct current (DC) being converted to the alternating current meeting accessory part nominal standard, and exports accessory part to.
3. system according to claim 1, it is characterized in that, described unsteady flow module also comprises:
Contact switch, for disconnecting when fault, isolates this unsteady flow module;
DC loop unit, for carrying out fault detection, monitoring, filtering to unsteady flow module, and receives the feedback current of traction invertor;
Braking resistor, for by the feedback current of described traction invertor with the form consumption of heat energy.
4. system according to claim 3, it is characterized in that, described accessory part specifically comprises:
Cooling blower, Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan, dust exhausting fan.
5. system according to claim 4, it is characterized in that, the subordinate inverter that described first unsteady flow module comprises is the first subordinate inverter, and the subordinate inverter that the second unsteady flow module comprises is the second subordinate inverter, concrete;
First subordinate inverter is to cooling blower output AC electricity;
Second subordinate inverter is to Air compressor, main generator blower fan, traction motor blower fan, braking resistor blower fan and dust exhausting fan output AC electricity.
6. system according to claim 5, it is characterized in that, described system also comprises:
3rd subordinate inverter, for described direct current (DC) being converted to the alternating current meeting battery charger nominal standard, and exports battery charger to;
Battery charger, it is battery charge that the alternating current for the 3rd subordinate inverter being exported converts direct current (DC) to;
Storage battery, for storage of electrical energy, and discharges electric energy in described main generator variable frequency starting process.
7. system according to claim 6, it is characterized in that, described storage battery lotus root connects described DC loop unit and traction invertor; Then in the process of main generator variable frequency starting, described storage battery is powered to main generator by DC loop unit and traction invertor, makes main generator complete variable frequency starting.
8. system according to claim 6, is characterized in that, described first subordinate inverter, the second subordinate inverter and the 3rd subordinate inverter redundancy each other.
9. system according to claim 6, it is characterized in that, described system also comprises:
Standard converter, lotus root connects described battery charger, and the direct current (DC) for being exported by described battery charger is converted to standard household electricity.
10. system according to claim 1, it is characterized in that, described main generator is specially double-winding motor, and each winding is to a unsteady flow module output AC electricity.
11. systems according to claim 2, is characterized in that:
Described excitation module lotus root connects subordinate inverter, or described excitation module lotus root connects main generator.
12. systems according to claim 2, it is characterized in that, described unsteady flow module also comprises:
Row, for unit, for described direct current (DC) being converted to the alternating current meeting specific criteria, and export Lighting System and the heating system of vehicle to.
13. according to claim 1-12 any one system, it is characterized in that, described system comprises well:
Control module, for sending controling instruction, with the operation of other each several part of control system.
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| CN201310085669.0A CN103158566B (en) | 2013-03-18 | 2013-03-18 | Alternating current transmission system |
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| CN201310085669.0A CN103158566B (en) | 2013-03-18 | 2013-03-18 | Alternating current transmission system |
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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: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |