CN108621797A - Rail vehicle and its power supply system and frequency-conversion air-conditioning system - Google Patents
Rail vehicle and its power supply system and frequency-conversion air-conditioning system Download PDFInfo
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- CN108621797A CN108621797A CN201710167148.8A CN201710167148A CN108621797A CN 108621797 A CN108621797 A CN 108621797A CN 201710167148 A CN201710167148 A CN 201710167148A CN 108621797 A CN108621797 A CN 108621797A
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- busbar
- frequency
- frequency conversion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/003—Supplying electric power to auxiliary equipment of vehicles to auxiliary motors, e.g. for pumps, compressors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Inverter Devices (AREA)
Abstract
The present invention is to improve the power supply efficiency of every power load in rail vehicle on the whole, especially be to improve the runnability that frequency conversion loads in rail vehicle, provide a kind of power supply system of rail vehicle, frequency-conversion air-conditioning system and application above-mentioned power supply system and frequency-conversion air-conditioning system rail vehicle.In the power supply system of rail vehicle, the direct current obtained from the outside of rail vehicle is transferred to general supply busbar, power supply system includes, for the frequency conversion load DC busbar of frequency conversion load supplying, and it is connected between the general supply busbar and the frequency conversion load DC busbar and is converted to the DC voltage of the general supply busbar frequency conversion load power source conversion equipment of the first DC voltage；And to be loaded except frequency conversion in addition to the power supply of other DC loads low-voltage direct busbar, and be connected between the general supply busbar and the low-voltage direct busbar and be converted to the DC voltage of the general supply busbar low-tension supply conversion equipment of the second DC voltage.
Description
Technical field
The present invention relates to rail vehicle, more particularly to power supply system therein and frequency-conversion air-conditioning system.
Background technology
Present electric locomotive commonly rail vehicle, such as subway, light rail or high ferro etc., from the outside of rail vehicle
The high voltage direct current of acquisition is transported on the power source bus of rail vehicle.It again will be electric by the power module being arranged in rail vehicle
Each load after the electric power provided on the busbar of source is converted on supply rail vehicle.In addition to main traction in existing rail vehicle
Other than system and lighting load, also a lot of other loads, for example (,) air-conditioning system, Emergency Venting System etc..How according to load
Characteristic rationally designs the power supply system structure in rail vehicle, is a problem needed to be considered.
Widely used frequency-conversion air-conditioning system is the change developed based on three-phase alternating current 380V busbares in existing rail vehicle
Frequency air-conditioning system, other load sharing three-phase alternating current 380V busbares on frequency-conversion air-conditioning system and rail vehicle, on rail vehicle
Subordinate inverter to obtain direct current and inversion from contact net be three-phase alternating current 380V, be then delivered to three-phase alternating current 380V busbares
On.Convertible frequency air-conditioner carries out variable-frequency variable-voltage conversion to control the fortune of convertible frequency air-conditioner again after obtaining electric power from three-phase alternating current 380V busbares
Although row, this scheme realize the frequency control of air-conditioning, increased to operation of air conditioner efficiency itself.But this scheme is fixed
A variable voltage variable frequency link is increased on the basis of frequency air-conditioning topology, so power supply conversion efficiency decreases.In addition, due to depositing
The problem of whether frequency converter and subordinate inverter match, it be easy to cause the collapse of 380V busbares.
Also favorably the high voltage direct current obtained outside rail vehicle is depressured to power supply change-over device in the prior art
600V direct currents on direct current supply busbar.Due on vehicle accumulator and lighting apparatus etc. use 110V direct currents, then also
It is 110V direct currents to need a power conversion module to be depressured 600V direct currents, is used for the confessions such as accumulator and lighting apparatus
Electricity.Included inverter converts 600V direct currents in other load such as air-conditioner sets, air compressor and wind turbine,
That is all DC loads share 600V DC bus.
Invention content
The present invention is to improve the power supply efficiency of every power load in rail vehicle on the whole, is especially raising track
The power supply efficiency that frequency conversion loads in vehicle provides a kind of power supply system of rail vehicle, frequency-conversion air-conditioning system and rail vehicle.
The first aspect of the present invention provides a kind of power supply system of rail vehicle, including general supply busbar, from rail vehicle
The external DC power transmission obtained to the general supply busbar, can also include：
For the frequency conversion load DC busbar of the frequency conversion load supplying in the rail vehicle, and to be connected to the general supply female
The first DC voltage is converted between line and the frequency conversion load DC busbar and by the DC voltage of the general supply busbar
Frequency conversion load power source conversion equipment；And
For the low-voltage direct busbar of other load supplyings in the rail vehicle in addition to frequency conversion loads, and it is connected to institute
It states between general supply busbar and the low-voltage direct busbar and the DC voltage of the general supply busbar is converted into the second direct current
The low-tension supply conversion equipment of voltage.
To ensure the runnability of frequency conversion load, mainly frequency-conversion air-conditioning system reliability of operation and change is given full play to
The good control performance of frequency air-conditioning, the embodiment of the present invention are independent for frequency conversion load setting in the power supply system of rail vehicle
The supply voltage of direct current supply busbar, the direct current supply busbar is arranged according to the supply voltage of convertible frequency air-conditioner in vehicle, therefore
Stable and reliable power supply can be provided for air-conditioning system.And since air-conditioning system has independent direct current supply busbar,
In the case of not influencing other loads, the output of air-conditioning system can also be carried out according to the electric energy that direct current supply busbar is capable of providing
Flexibly control, and even if the operation of individual air-conditionings in air-conditioning system is broken down, will not influence by other for the goddess of lightning
The normal operation of the load of line power supply, which also improves entire rail vehicle reliabilities of operation.
In the power supply system of rail vehicle provided by the invention, the frequency conversion load power source conversion equipment is set as N parallel
A, the frequency conversion load DC busbar includes N+1 frequency conversion load DC bus section, busbar section, is in the frequency conversion load DC busbar at both ends
Section connects a frequency conversion load power source conversion equipment by fuse, and in an intermediate position every frequency conversion load DC is female
Line segment connects two frequency conversion load power source conversion equipments, each frequency conversion load power source converting means simultaneously by fuse respectively
Two adjacent frequency conversion load DC bus section, busbar sections are set while being connected to, every frequency conversion load DC bus section, busbar section connects the railcar
Part frequency conversion load in, N is the integer more than or equal to 1, and when N is equal to 1, the frequency conversion load DC busbar includes 2 points
Other places are in the frequency conversion load DC bus section, busbar section at both ends.In this way when event occurs in the frequency conversion load on a frequency conversion load DC bus section, busbar section
When barrier, the frequency conversion load DC bus section, busbar section where load fault takes off under fuse effect from frequency conversion load power source conversion equipment
From, do not interfere with other frequency conversion load DC bus section, busbar sections normal power supply and its connected frequency conversion load normal operation.
In the power supply system of rail vehicle provided by the invention, the frequency conversion load power source conversion equipment includes the two of parallel connection
The DC voltage of the general supply busbar is converted to first DC voltage by a or more than two current transformers respectively.It is this
Redundant configuration greatly improves the power supply reliability of frequency conversion load DC busbar.
Further include the anode for detecting the frequency conversion load DC busbar in the power supply system of rail vehicle provided by the invention
The detection circuit of busbar voltage and negative electrode bus voltage-to-ground, wherein positive bus voltage is exhausted in the frequency conversion load DC busbar
It is equal with negative bus voltage absolute value to being worth；And judge that the frequency conversion loads directly according to the testing result of the detection circuit
Flow busbar whether the voltage comparator circuit of failure.
Another aspect of the present invention provides a kind of frequency-conversion air-conditioning system of rail vehicle, including air conditioning system controller, also wraps
Power supply system above-mentioned is included, the convertible frequency air-conditioner includes controlling the variable voltage variable frequency inverter of compressor of air conditioner operation, and control
The level pressure of the operation of air conditioner condensation machine and ventilation blower determines frequency inverter, and the variable voltage variable frequency inverter and the level pressure determine frequency inversion
Device is by the frequency conversion load DC bussed supply.Further, the variable voltage variable frequency inverter includes two in parallel；Or it is described
Convertible frequency air-conditioner further includes booster circuit, and the air conditioning system controller controls institute in the frequency conversion load DC bus-bar fault
Frequency inverter power supply will be determined after direct current electric boost that accumulator exports to the level pressure by stating booster circuit.
The frequency-conversion air-conditioning system for second of rail vehicle that another aspect of the present invention provides, including air conditioning system controller,
Further include power supply system above-mentioned, the convertible frequency air-conditioner includes the variable voltage variable frequency inverter for controlling compressor of air conditioner operation, described
Variable voltage variable frequency inverter is by the frequency conversion load DC bussed supply, and the freezing machine and ventilation blower of the convertible frequency air-conditioner are by described three
Mutually exchange bussed supply.
It, can be according to the output power of direct current supply busbar, flexibly after convertible frequency air-conditioner uses dedicated direct current supply busbar
The operation power of air-conditioning system is controlled, redundancy is preferable, can give full play to the good control performance of convertible frequency air-conditioner and economize on electricity property
Energy.
The third aspect of the invention provides a kind of rail vehicle, including the power supply system and convertible frequency air-conditioner above-mentioned
System.Due to advantageous effect possessed by power supply system provided by the invention and frequency-conversion air-conditioning system, track provided by the invention
Vehicle also improves the power consumption efficiency and operational safety of vehicle entirety.
Description of the drawings
Fig. 1 is a kind of theory structure schematic diagram of rail vehicle power supply system provided in an embodiment of the present invention；
Fig. 2 is the theory structure schematic diagram of another rail vehicle power supply system provided in an embodiment of the present invention；
Fig. 3 is a kind of electrical block diagram of the frequency conversion load power source conversion equipment in the embodiment of the present invention；
Fig. 4 is a concrete application example of rail vehicle power supply system provided in an embodiment of the present invention；
Fig. 5 A are another concrete application example of rail vehicle power supply system provided in an embodiment of the present invention；
Fig. 5 B are another electrical block diagram of the frequency conversion load power source conversion equipment in the embodiment of the present invention；
Fig. 5 C are the exemplary a kind of malfunction schematic diagram of concrete application shown in Fig. 5 A；
Fig. 6 is the principle schematic of subsection setup frequency conversion load DC busbar in the embodiment of the present invention.
Specific implementation mode
Due to the good control performance of convertible frequency air-conditioner and energy-efficient performance, it is used widely in rail vehicle.Air-conditioning
System has become in rail vehicle the most important high power load in addition to trailer system.Air-conditioning system reliability of operation is also
Emphasis is needed one of to consider the problems of in rail vehicle control.
To ensure frequency-conversion air-conditioning system reliability of operation and giving full play to the performance of convertible frequency air-conditioner, the embodiment of the present invention
In the power supply system of rail vehicle, independent direct current supply busbar, the power supply of the direct current supply busbar are set for convertible frequency air-conditioner
Voltage could be provided as the supply voltage of the convertible frequency air-conditioner configured in rail vehicle, thus can be provided for air-conditioning system stablize and
Reliable power supply.It is empty in the case where not influencing other loads and since air-conditioning system has independent direct current supply busbar
The operation power of adjusting system can also flexibly be controlled according to the output power of direct current supply busbar, and when air-conditioning is transported
When row failure, the load on other power supply buses will not be influenced, thus also improves the reliable of entire rail vehicle operation
Property.Further, be also due to air-conditioning system and enjoy independent direct current supply busbar, no matter the direct current supply busbar safety
In terms of the optimization design of monitoring, Redundancy Design and air-conditioning system, great convenience is both provided.It should be noted that frequency conversion
Air-conditioning is most important frequency conversion load in rail vehicle, but in addition to this, the frequency conversion load in rail vehicle is also possible that：System
Dynamic system compressors etc..These frequency conversions load can also share direct current supply busbar together with convertible frequency air-conditioner, be provided in the present invention
Following embodiment in, mainly illustrate and analyze by taking convertible frequency air-conditioner as an example.
Below with specific embodiment and in conjunction with attached drawing, the technical solution of embodiment that the present invention will be described in detail offer.
As shown in Figure 1, for the theory structure schematic diagram of rail vehicle power supply system provided in an embodiment of the present invention, the present invention
Two direct current supply busbares, frequency conversion load DC busbar 131 and low-voltage direct busbar 141 is arranged in embodiment on the rail vehicle,
Frequency conversion load DC busbar 131 is the special DC busbar of frequency conversion load, and frequency conversion load includes mainly convertible frequency air-conditioner (heating
Ventilation air conditioning, HVAC), low-voltage direct busbar 141 be other DC loads, such as accumulator and
The power supplies such as lighting apparatus.As shown in Figure 1, rail vehicle power supply system provided in an embodiment of the present invention includes mainly：General supply is female
Line 12, frequency conversion load power source conversion equipment 13 and frequency conversion load DC busbar 131 and low-tension supply conversion equipment 14 and low pressure
DC bus 141, wherein：
High voltage direct current is obtained via pantograph 11 and be transferred to general supply busbar 12 from contact net 10；
Frequency conversion load power source conversion equipment 13 is connected between general supply busbar 12 and frequency conversion load DC busbar 131, will
The high-voltage dc voltage of general supply busbar 12 is converted to the supply voltage of frequency conversion load, i.e. the first DC voltage, frequency conversion load is directly
It is the special DC busbar that frequency conversion loads in rail vehicle to flow busbar 131；
Low-tension supply conversion equipment 14 is connected between general supply busbar 12 and low-voltage direct busbar 141, by general supply mother
The high-voltage dc voltage of line 12 be converted to except frequency conversion load in addition to other DC loads needed for direct current supply voltage, i.e., second
DC voltage.
For example, the voltage for the direct current that contact net 10 provides is generally relatively high, such as direct current 1500V voltages, warp
By pantograph 11, from the outside of rail vehicle by the HVDC transmission of 1500V to general supply busbar 12, general supply busbar
Voltage on 12 is also 1500V.The first DC voltage on frequency conversion load DC busbar 131 is according to frequency conversion load, mainly change
The supply voltage of frequency air-conditioning determines, such as 680V.Frequency conversion load power source conversion equipment 13 is current transformer, completes 1500V high straightenings
Galvanic electricity is pressed onto the conversion of 680V DC voltages.The second DC voltage on low-voltage direct busbar 141 needs to meet on rail vehicle
The power demands of other DC loads, such as 110V DC voltages, low-tension supply conversion equipment 14 are needed 1500V high voltage direct current
Voltage is converted to 110V DC voltages.Other DC loads are mainly the stand-by power supply accumulator on rail vehicle, and illumination
Equipment etc..It should be noted that the specific voltage value such as 1500V, 680V and 110V for being provided in the embodiment of the present invention is only
Example, specific voltage value are likely to occur change according to practical application scene.
On rail vehicle other than needing direct current supply busbar, it is also necessary to for AC load configure three-phase alternating current busbar, three
Phase ac bus is used for traction locomotive and other three-phase alternating current load supplyings.The three-phase alternating current can be turned by low-tension supply
Changing device 14 exports, that is to say, that low-tension supply conversion equipment 14 needs while exporting 380V three-phase alternating currents and 110V direct currents
Electricity.
As shown in Fig. 2, on the basis of embodiment shown in Fig. 1, low-tension supply conversion equipment 14 can also export three-phase alternating current
On electricity to three-phase alternating current busbar 242, three-phase alternating current busbar 242 is the three-phase alternating current load supplying of rail vehicle, and three-phase alternating current is negative
The supply voltage of load is generally 380V three-phase alternating currents, such as when the voltage of contact net is 1500V high voltage direct currents, low tension
Supply changeover device 14 has while 1500V high voltage direct currents are converted to 110V direct current Electricity Functionals, is also equipped with 1500V high pressures
Direct current is converted to the function of 380V three-phase alternating currents.
It should be noted that as an optional embodiment, three-phase alternating current can also be converted by independent power supply
Device provides, i.e., setting one is independently of low-tension supply conversion equipment between general supply busbar 12 and three-phase alternating current busbar 242
14 three phase inverter completes high voltage direct current to the conversion between three-phase alternating current.
Special power supply buses are provided with for frequency conversion load in the present embodiment, since the frequency conversion load on rail vehicle is mainly
Frequency-conversion air-conditioning system, therefore the supply voltage of frequency conversion load DC busbar can match according to the convertible frequency air-conditioner selected on rail vehicle
Analysis of Nested Design improves the transfer efficiency of convertible frequency air-conditioner power supply, while providing stable and reliable power supply for convertible frequency air-conditioner.And become
After the power supply buses of frequency air-conditioning are independently arranged, the three-phase alternating current busbar in rail vehicle no longer needs to power to convertible frequency air-conditioner, when
When operation troubles occurs in frequency-conversion air-conditioning system, the power supply of three-phase alternating current load will not be influenced, therefore reduces three-phase alternating current
The routed line probability of busbar.High power load on three-phase alternating current busbar is mainly trailer system wind turbine, braking system compressor etc.,
After the power supply buses of air-conditioning system are independently of three-phase alternating current busbar, the operation troubles of air-conditioning system will not bring disaster to trailer system
Normal operation has also further ensured that the safety of traction and braking system operation.
In Fig. 1 and embodiment illustrated in fig. 2, preferably, the voltage value of positive and negative busbar in frequency conversion load DC busbar
Absolute value can be equal, respectively the half of the first voltage value, and this mode is unequal with respect to other positive and negative anodes bus voltage values
The case where, for example, in positive and negative busbar a busbar absolute value of voltage be more than another busbar voltage absolute value the case where, reduce
The voltage-to-ground of DC bus, to reducing harm when human electric shock's accident.To in frequency conversion load DC busbar just
The situation that the voltage value of negative busbar is equal is illustrated, such as the supply voltage of frequency conversion load is 680V, and frequency conversion load is straight
The positive and negative anodes busbar voltage for flowing busbar is specially ± 340V.
In rail vehicle power supply system provided by the invention, for convenience of monitoring whether frequency conversion load DC busbar event occurs
Barrier, can also be arranged detection circuit, persistently detect the positive electrode bus voltage-to-ground and negative electrode bus pair of frequency conversion load DC busbar
The detection circuit of ground voltage, and voltage comparator circuit is set and judges that the frequency conversion loads according to the testing result of the detection circuit
DC bus fault.Such as frequency conversion load DC busbar is when using positive and negative anodes busbar as the power supply mode of ± 340V, DC power supply
Positive and negative anodes busbar output par, c can use grounded inspection circuit, and limit DC output voltage central point to 0V.Lasting monitoring
Voltage between ± 340V DC bus intermediate point 0V voltages and positive and negative anodes busbar may determine that positive mother by voltage comparator
Whether line or negative electrode bus occur earth fault, and further can take power protection measure and failure in generation earth fault
Early warning.
As shown in figure 3, a kind of example of circuit structure for frequency conversion load power source conversion equipment 13, the example is still with total electricity
Source busbar 12 exports high pressure 1500V direct currents, and frequency conversion load power source conversion equipment 13 illustrates for exporting 680V direct currents.Figure
Frequency conversion load power source conversion equipment 13 shown in 3 be a current transformer (Converter), current transformer need and its control unit it
Between interactive controlling signal, the control unit of current transformer is usually located in the controller of rail vehicle.It can be used in current transformer
Soft switch technique and high frequency technique, promote the transfer efficiency of power supply conversion, and realize the miniaturization of power supply change-over device and light-duty
Change.
To improve the reliability of frequency conversion load DC bussed supply, frequency conversion load power source conversion equipment can generally be set parallel
Two or more are set to, similarly, to improve the reliability of low-voltage direct busbar and three-phase alternating current bussed supply, low-tension supply
Conversion equipment can also be set as two parallel.
Specific example is as shown in figure 4, Fig. 4 is one of rail vehicle power supply system provided in an embodiment of the present invention specifically shows
Example, the example are the concrete application on 6 compartment rail vehicles in rail vehicle power supply system provided by the invention, in figure 2 it is dynamic
Power compartment T is located at rail vehicle both ends, the 4 carrying compartment M in centre, and pantograph 41 is by the 1500V high pressures on contact net 40
Direct current (1500VDC) is transferred on the general supply busbar 42 on rail vehicle, and two frequency conversion load power source conversion equipments 43 are simultaneously
It is associated between general supply busbar 42 and frequency conversion load DC busbar 431, two low-tension supply conversion equipments (APS) 44 are by general supply
After 1500V high voltage direct currents on busbar 42 are converted respectively, the low-voltage direct for being output to 110V direct currents (110VDC) is female
Line 441 is that one group of frequency conversion is installed in each carrying compartment M on the three-phase alternating current busbar 442 for exchange 380V (380VAC) with voltage
Air-conditioning, in example shown in Fig. 4, convertible frequency air-conditioner is that integrated there are two variable voltage variable frequency inverters (VVVF) and a level pressure to determine frequency inversion
The convertible frequency air-conditioner of device (CVCF).Other frequency conversions load such as frequency conversion brake system air compressor.Referring to Fig. 4, frequency conversion load is straight
Stream busbar 431 is powered for air supply unit (air supply unit, ASU).Two frequency conversion load power source conversion equipments, 43 pairs of configurations
Mode can improve the reliability of rail vehicle frequency conversion load DC bussed supply, similarly two low-tension supply conversion equipments 44
Double configuration modes can improve the reliability of low-voltage direct bussed supply.
Referring also to as shown in figure 4, a kind of concrete structure of low-tension supply conversion equipment 44 may include an inverter, one
A isolating transformer and a rectifier, wherein：The DC inverter that inverter supplies general supply busbar 42 is setting electricity
The three-phase alternating current of voltage-frequency rate, isolating transformer are output to three-phase alternating current after the three-phase alternating current that inverter exports is electrically isolated transformation
On busbar 442, and the three-phase alternating current that inverter exports is rectified to after second voltage value and is output to low-voltage direct mother by rectifier
On line 441.
As shown in figure 4, in the embodiment of the present invention, the inverter of convertible frequency air-conditioner is integrated in inside air-conditioning, each convertible frequency air-conditioner
It can integrate there are three inverter, including two variable voltage variable frequency inverters, the adjustable 0~480V three-phase alternating currents of output frequency,
Compressor for controlling convertible frequency air-conditioner.It being also integrated with a level pressure and determines frequency inverter, the 380V three-phase alternating currents of frequency are determined in output,
Freezing machine and ventilation blower for controlling convertible frequency air-conditioner.Two variable voltage variable frequency inverters and a level pressure determine frequency inverter all by
Frequency conversion load DC busbar 431 is powered.In this manner, each convertible frequency air-conditioner can also further integrate an emergency ventilation
Booster circuit determines frequency inverter with level pressure and collectively constitutes emergency ventilation inverter.It is collapsed completely in frequency conversion load DC busbar
It bursts in the state of continuing power supply without normal direction convertible frequency air-conditioner, controls after the booster circuit increases the direct current 110V voltages of accumulator and supply
Determine frequency inverter to level pressure, then emergency ventilation inverter is able to work, so that the freezing machine and ventilation blower of convertible frequency air-conditioner can
With normal work, so as to provide necessary ventilation to rail vehicle, and the cooling of appropriateness is carried out to convertible frequency air-conditioner.
In specific example shown in Fig. 4, when one of frequency conversion load power source conversion equipment 43 breaks down, frequency conversion
The output power of load bus 431 is reduced to 50% of gross output or so, at this moment may be used and closes each convertible frequency air-conditioner
Any of variable voltage variable frequency inverter mode, or interval closes the mode of half compartment air-conditioning, by entire air-conditioning system
Running power accordingly reduces by 50% or so, so as to so that entire air-conditioning system operates in low power state, avoid the occurrence of air-conditioning
The case where system is integrally paralysed.
As shown in Figure 5A, it is another specific example of rail vehicle power supply system provided in an embodiment of the present invention, the tool
Body example includes 110V low-voltage directs busbar 541,380V three-phase alternating currents busbar 542 and 680V frequency conversion load DC busbares
531.With specific example shown in Fig. 4 the difference is that, in specific example shown in Fig. 5 A, the freezing machine of convertible frequency air-conditioner and logical
Three-phase alternating current needed for wind turbine is directly powered by 380V three-phase alternating currents busbar 542, it is no longer necessary to which level pressure determines the progress of frequency inverter
Control.Also, different with frequency conversion load power source conversion equipment 43, in parallel in frequency conversion load power source conversion equipment 53 there are two unsteady flows
Device, concrete structure is as shown in Figure 5 B, and the DC voltage that general supply busbar is supplied is converted to the first direct current by two current transformers respectively
Voltage.
Refering to as shown in Figure 5 C, when failure, i.e. one in some frequency conversion load power source conversion equipment 53 shown in Fig. 5 C occurs
When a current transformer failure, the control of air-conditioning is more flexible in specific example shown in Fig. 5 A, it is thus only necessary to selectively close off institute
There are in air-conditioning 25% variable voltage variable frequency inverter, i.e. selection to close 3 variable voltage variable frequency inverters, or by adjusting frequency to reduce
The power of 25% variable voltage variable frequency inverter, so that it may so that the operation power of entire air-conditioning system is accordingly reduced to 75% or so.Again
Such as some 53 entirety of frequency conversion load power source conversion equipment breaks down, then selects the variable voltage variable frequency for closing half in all air-conditionings
Inverter, or by adjusting frequency to reduce the power of 50% variable voltage variable frequency inverter, the operation of entire air-conditioning system can be made
Power is accordingly reduced to 50% or so.The specific control method of variable voltage variable frequency inverter is well known to those skilled in the art, this
In be no longer described in detail.
As shown in fig. 6, in embodiment provided by the invention, frequency conversion load DC bus section can also be arranged, every section
Frequency conversion load DC busbar accesses frequency conversion load power source conversion equipment by fuse, in this way when a wherein frequency conversion load DC
The frequency conversion load connected on bus section, busbar section is broken down when voltage or electric current being caused instantaneously to increase, this frequency conversion load DC bus section, busbar section
It is disconnected from frequency conversion load power source conversion equipment under fuse effect, also just departing from power supply system, avoids influencing other
The normal power supply of section frequency conversion load DC busbar.Such as shown in Fig. 6, there are two frequency conversion load power sources to convert for setting in power supply system
Device (613,623), frequency conversion load DC busbar are divided into three sections, i.e. frequency conversion load DC bus section, busbar section (631,632,633), often
One frequency conversion load DC bus section, busbar section can be the frequency conversion load supplying in two compartments.Wherein：Frequency conversion load DC bus section, busbar section 631
Positive and negative busbar pass through the output positive and negative charge of a fuse F1 connection frequency conversion load power sources conversion equipment 613, frequency conversion respectively
The positive and negative busbar of load DC bus section, busbar section 633 passes through fuse F4 connection frequency conversion load power sources conversion equipment 623 respectively
Output positive and negative charge, and 632 sections of frequency conversion load DC busbar in an intermediate position is both loaded by fuse F2 connection frequency conversions
Power supply change-over device 613 can also pass through fuse F3 connection load power sources conversion equipment 623.If the compartment of rail vehicle
Quantity is more, and the quantity of frequency conversion load power source conversion equipment may also accordingly increase, then frequency conversion load DC busbar can be corresponding
It is divided into more multistage, such as when frequency conversion load power source conversion equipment is N number of, frequency conversion load DC busbar can be divided into N+1 sections, adjacent
There are two fuses for series connection respectively between the positive and negative anodes busbar of two sections of frequency conversion load DC bus section, busbar sections, in every adjacent two sections of positive and negative anodes
Between concatenated two fuses of busbar institute, it is separately connected a frequency conversion load power source conversion equipment output positive and negative charge, N is equal to
When 1, that is to say, that when frequency conversion load power source conversion equipment only has one, frequency conversion load DC busbar can also be divided into 2 frequency conversions
Load DC bus section, busbar section, two frequency conversion load DC bus section, busbar sections are respectively at both ends, and frequency conversion load is respectively connected to by fuse
At this moment power supply change-over device is not on the frequency conversion load DC bus section, busbar section in centre position.In this way, each frequency conversion load power source turns
Changing device connects two adjacent frequency conversion load DC bus section, busbar sections simultaneously, and every frequency conversion load DC bus section, busbar section is connected with part change
Frequency loads.Under normal operating conditions, frequency conversion load DC busbar is by N number of frequency conversion load power source conversion equipment parallel powering, when going out
When the failure of an existing frequency conversion load power source conversion equipment, power can be run to adapt to frequency conversion by accordingly reducing convertible frequency air-conditioner
Output power on load DC busbar, so as to prevent the collapse of entire frequency-conversion air-conditioning system.And it ought wherein one change
When load failure on frequency load DC bus section, busbar section causes electric current or voltage instantaneous to increase, under fuse effect, therefore
Frequency conversion load DC bus section, busbar section where barrier load is disconnected from frequency conversion load power source conversion equipment, and it is negative not interfere with other frequency conversions
The power supply for carrying DC bus section would not also influence the normal fortune of the frequency conversion load of other frequency conversion load DC bus section, busbar sections power supply
Row.
By above-mentioned example it is clear that since the frequency conversion load on rail vehicle is mainly convertible frequency air-conditioner, it is
After dedicated direct current supply busbar is arranged in frequency conversion load, air-conditioning can be flexibly controlled according to the output power of direct current supply busbar
The operation power of system, redundancy is preferable, can give full play to the good control performance of convertible frequency air-conditioner and electricity saving performance.Compared to rail
It is the scheme of all load supplyings there was only three-phase alternating current 380V power supply busbares in road vehicle, reduces the power supply of convertible frequency air-conditioner
The link of conversion, greatly improves power-efficient.Compared to frequency conversion load and one direct current supply busbar of other load sharings
Scheme, frequency conversion load DC busbar are mainly convertible frequency air-conditioner power supply, improve frequency-conversion air-conditioning system reliability of operation, and fully
The good control performance of convertible frequency air-conditioner and electricity saving performance are played, while also improving the power consumption efficiency and fortune of entire rail vehicle
Row safety.
Above-mentioned rail vehicle power supply system based on the embodiment of the present invention, the embodiment of the present invention also provide rail vehicle
Frequency-conversion air-conditioning system, the frequency-conversion air-conditioning system of the rail vehicle powered by above-mentioned power supply system, and primary structure includes air-conditioning
The fortune of system controller, the variable voltage variable frequency inverter of control compressor of air conditioner operation, and control air conditioner condensation machine and ventilation blower
Capable level pressure determines frequency inverter, and variable voltage variable frequency inverter and level pressure determine frequency inverter by frequency conversion load DC bussed supply.Or
Person's convertible frequency air-conditioner includes the variable voltage variable frequency inverter for controlling compressor of air conditioner operation, and variable voltage variable frequency inverter is by frequency conversion load DC
Bussed supply, the freezing machine and ventilation blower of convertible frequency air-conditioner are by three-phase alternating current bussed supply.Wherein variable voltage variable frequency inverter can be simultaneously
Connection is set as two.Air conditioning system controller is generally located in the master controller of rail vehicle and integrates in convertible frequency air-conditioner
Control signal is exchanged between each inverter, controls the operating status of inverter.The master controller of rail vehicle controls change simultaneously
The operating status of each current transformer in frequency load power source conversion equipment, when frequency conversion load power source conversion equipment is because of current transformer failure
When influencing the power supply of frequency conversion load DC busbar, individual air-conditionings are closed according to fault condition selection, or select to close entire empty
Part variable-frequency variable-voltage inverter in adjusting system, makes entire air-conditioning system be able to maintain that low power operating state.
Above-mentioned track train power supply system based on the embodiment of the present invention and frequency-conversion air-conditioning system, the embodiment of the present invention
Furthermore provide the rail vehicle comprising above-mentioned power supply system or frequency-conversion air-conditioning system.
The specific implementation of the present invention is described in detail above by reference to attached drawing, it is clear that those skilled in the art
Various changes and modifications can be made to the invention by member without departing from the spirit and scope of the present invention.If in this way, the present invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to include these these modifications and variations
Including modification and variation.
Claims (11)
1. a kind of power supply system of rail vehicle, including general supply busbar, the direct current obtained from the outside of the rail vehicle
It is transferred to the general supply busbar, which is characterized in that further include：
For the frequency conversion load DC busbar of the frequency conversion load supplying in the rail vehicle, and be connected to the general supply busbar and
The frequency conversion of the first DC voltage is converted between the frequency conversion load DC busbar and by the DC voltage of the general supply busbar
Load power source conversion equipment；And
For the low-voltage direct busbar of other load supplyings in the rail vehicle in addition to frequency conversion loads, and it is connected to described total
The second DC voltage is converted between power source bus and the low-voltage direct busbar and by the DC voltage of the general supply busbar
Low-tension supply conversion equipment.
2. power supply system according to claim 1, which is characterized in that the frequency conversion load power source conversion equipment is N number of, institute
It includes N+1 frequency conversion load DC bus section, busbar section to state frequency conversion load DC busbar, and the frequency conversion load DC bus section, busbar section in both ends is logical
Overcurrent fuse connects a frequency conversion load power source conversion equipment, in an intermediate position every frequency conversion load DC bus section, busbar section
Two frequency conversion load power source conversion equipments are connected by fuse simultaneously respectively, each frequency conversion load power source conversion equipment is same
When be connected to two adjacent frequency conversion load DC bus section, busbar sections, every frequency conversion load DC bus section, busbar section connects in the rail vehicle
Part frequency conversion load, N is the integer more than or equal to 1, and when N is equal to 1, the frequency conversion load DC busbar is located respectively including 2
Frequency conversion load DC bus section, busbar section in both ends.
3. power supply system according to claim 1 or 2, which is characterized in that the frequency conversion load power source conversion equipment includes
Two or more current transformers in parallel.
4. power supply system according to claim 1, which is characterized in that the power supply system further includes that the detection frequency conversion is negative
The detection circuit for carrying the positive electrode bus voltage-to-ground and negative electrode bus voltage-to-ground of DC bus, wherein the frequency conversion load DC
Positive bus voltage absolute value and negative bus voltage absolute value are equal in busbar；And the detection knot according to the detection circuit
Fruit judge the frequency conversion load DC busbar whether the voltage comparator circuit of failure.
5. power supply system according to claim 1, which is characterized in that the power supply system further includes for the rail vehicle
In three-phase alternating current load supplying three-phase alternating current busbar, the low-tension supply conversion equipment also by the general supply busbar supply
DC inverter be to set the three-phase alternating current of voltage and frequency and be output to the three-phase alternating current busbar.
6. power supply system according to claim 1, which is characterized in that the frequency conversion load includes convertible frequency air-conditioner.
7. a kind of frequency-conversion air-conditioning system of rail vehicle, including air conditioning system controller, which is characterized in that further include control air-conditioning
The variable voltage variable frequency inverter of compressor operating, and the level pressure of operation of control air conditioner condensation machine and ventilation blower determine frequency inverter,
The variable voltage variable frequency inverter and the level pressure determine frequency inverter by any power supply system of Claims 1 to 4
The frequency conversion load DC bussed supply.
8. frequency-conversion air-conditioning system according to claim 7, which is characterized in that the variable voltage variable frequency inverter includes in parallel
Two；And/or
The convertible frequency air-conditioner further includes booster circuit, and the air conditioning system controller is in the frequency conversion load DC bus-bar fault
When, frequency inverter power supply will be determined after direct current electric boost that accumulator exports to the level pressure by controlling the booster circuit.
9. a kind of frequency-conversion air-conditioning system of rail vehicle, including air conditioning system controller, which is characterized in that further include control air-conditioning
The variable voltage variable frequency inverter of compressor operating, the variable voltage variable frequency inverter is by the institute in the power supply system described in claim 5
Frequency conversion load DC bussed supply is stated, the freezing machine and ventilation blower of the convertible frequency air-conditioner are by the power supply system described in claim 5
In the three-phase alternating current bussed supply.
10. a kind of rail vehicle, which is characterized in that including any power supply system of claim 1~6.
11. a kind of rail vehicle, which is characterized in that including any frequency-conversion air-conditioning system of claim 7~9.
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| CN201710167148.8A CN108621797B (en) | 2017-03-20 | 2017-03-20 | Rail vehicle and power supply system and variable frequency air conditioning system thereof |
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| CN201710167148.8A CN108621797B (en) | 2017-03-20 | 2017-03-20 | Rail vehicle and power supply system and variable frequency air conditioning system thereof |
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| CN108621797B CN108621797B (en) | 2020-06-05 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301811A (en) * | 2018-11-13 | 2019-02-01 | 中国铁路总公司 | A kind of comprehensive direct current system |
| CN109941108A (en) * | 2019-04-02 | 2019-06-28 | 中车株洲电力机车有限公司 | Rail traffic vehicles and its fault protecting method |
| CN111332122A (en) * | 2020-03-26 | 2020-06-26 | 深圳市波斯曼技术有限公司 | Power supply system adopting distributed low-power supply module |
| CN112009512A (en) * | 2020-09-01 | 2020-12-01 | 中车青岛四方车辆研究所有限公司 | Environment regulation control device and method for passenger room of urban rail vehicle |
| CN112248826A (en) * | 2020-12-21 | 2021-01-22 | 西南交通大学 | DC700V circuit topological structure of high-speed train emergency self-traveling system |
| CN112265450A (en) * | 2020-12-21 | 2021-01-26 | 西南交通大学 | Full direct current circuit topological structure of high-speed train emergency self-traveling system |
| CN113013981A (en) * | 2021-02-26 | 2021-06-22 | 北京百度网讯科技有限公司 | Power distribution system |
| CN114572261A (en) * | 2020-12-01 | 2022-06-03 | 山东朗进科技股份有限公司 | Rail vehicle, rail vehicle air conditioning system and control method thereof |
| CN114572262A (en) * | 2020-12-01 | 2022-06-03 | 山东朗进科技股份有限公司 | Rail vehicle, rail vehicle ventilation system and control method thereof |
| EP4212383A4 (en) * | 2020-09-11 | 2024-03-13 | Crrc Zhuzhou Locomotive Co Ltd | Rail transit vehicle and power storage battery discharge balancing circuit thereof, and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1724147A2 (en) * | 2005-05-18 | 2006-11-22 | Kabushiki Kaisha Toshiba | Control apparatus for an electric locomotive |
| CN101505988A (en) * | 2006-08-10 | 2009-08-12 | 三菱电机株式会社 | Electric vehicle control apparatus |
| CN101863230A (en) * | 2009-04-15 | 2010-10-20 | 株式会社东芝 | The power storage control apparatus of battery-driven car and method |
| CN103723044A (en) * | 2013-12-02 | 2014-04-16 | 青岛朗进集团有限公司 | Auxiliary power supply system of urban rail vehicle |
-
2017
- 2017-03-20 CN CN201710167148.8A patent/CN108621797B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1724147A2 (en) * | 2005-05-18 | 2006-11-22 | Kabushiki Kaisha Toshiba | Control apparatus for an electric locomotive |
| CN101505988A (en) * | 2006-08-10 | 2009-08-12 | 三菱电机株式会社 | Electric vehicle control apparatus |
| CN101863230A (en) * | 2009-04-15 | 2010-10-20 | 株式会社东芝 | The power storage control apparatus of battery-driven car and method |
| CN103723044A (en) * | 2013-12-02 | 2014-04-16 | 青岛朗进集团有限公司 | Auxiliary power supply system of urban rail vehicle |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301811A (en) * | 2018-11-13 | 2019-02-01 | 中国铁路总公司 | A kind of comprehensive direct current system |
| CN109941108B (en) * | 2019-04-02 | 2021-11-12 | 中车株洲电力机车有限公司 | Rail transit vehicle and fault protection method thereof |
| CN109941108A (en) * | 2019-04-02 | 2019-06-28 | 中车株洲电力机车有限公司 | Rail traffic vehicles and its fault protecting method |
| CN111332122A (en) * | 2020-03-26 | 2020-06-26 | 深圳市波斯曼技术有限公司 | Power supply system adopting distributed low-power supply module |
| CN112009512A (en) * | 2020-09-01 | 2020-12-01 | 中车青岛四方车辆研究所有限公司 | Environment regulation control device and method for passenger room of urban rail vehicle |
| EP4212383A4 (en) * | 2020-09-11 | 2024-03-13 | Crrc Zhuzhou Locomotive Co Ltd | Rail transit vehicle and power storage battery discharge balancing circuit thereof, and control method |
| CN114572262A (en) * | 2020-12-01 | 2022-06-03 | 山东朗进科技股份有限公司 | Rail vehicle, rail vehicle ventilation system and control method thereof |
| CN114572261A (en) * | 2020-12-01 | 2022-06-03 | 山东朗进科技股份有限公司 | Rail vehicle, rail vehicle air conditioning system and control method thereof |
| WO2022117008A1 (en) * | 2020-12-01 | 2022-06-09 | 山东朗进科技股份有限公司 | Rail vehicle, and rail vehicle ventilation system and control method therefor |
| EP4242084A4 (en) * | 2020-12-01 | 2024-04-24 | Shandong Longertek Tech Co Ltd | Rail vehicle, and rail vehicle ventilation system and control method therefor |
| CN112265450A (en) * | 2020-12-21 | 2021-01-26 | 西南交通大学 | Full direct current circuit topological structure of high-speed train emergency self-traveling system |
| CN112248826A (en) * | 2020-12-21 | 2021-01-22 | 西南交通大学 | DC700V circuit topological structure of high-speed train emergency self-traveling system |
| CN113013981A (en) * | 2021-02-26 | 2021-06-22 | 北京百度网讯科技有限公司 | Power distribution system |
| CN113013981B (en) * | 2021-02-26 | 2022-08-02 | 北京百度网讯科技有限公司 | Power distribution system |
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Effective date of registration: 20210224 Address after: Building 2-5, No. 508, Chuanhong Road, Pudong New Area, Shanghai Patentee after: KNORR-BREMSE RAILWAY TECHNOLOGIES (SHANGHAI) Co.,Ltd. Address before: 201202 building 2-5, No. 508, Chuanhong Road, Pudong New Area, Shanghai Patentee before: KNORR-BREMSE RAILWAY TECHNOLOGIES (SHANGHAI) Co.,Ltd. Patentee before: KNORR-BREMSE POWERTECH GmbH |