CN106455418B - Electric rail car group traction convertor Intelligence Cooling System - Google Patents
Electric rail car group traction convertor Intelligence Cooling System Download PDFInfo
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- CN106455418B CN106455418B CN201610794277.5A CN201610794277A CN106455418B CN 106455418 B CN106455418 B CN 106455418B CN 201610794277 A CN201610794277 A CN 201610794277A CN 106455418 B CN106455418 B CN 106455418B
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- fan
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20172—Fan mounting or fan specifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of electric rail car group traction convertor Intelligence Cooling Systems, including：The secondary cooling apparatus installed a radiator of the heat source component included by the traction convertor and be set in equipment compartment；The coolant liquid flowed out by a radiator takes away the heat that the heat source component generates；Secondary cooling apparatus includes：The secondary radiator being connected to by coolant liquid circulation line with a radiator；Coolant liquid circulation line includes inlet pipe and outlet tube road；Pump mounted on the outlet tube road；Enter the secondary radiator via outlet tube road and pump by the coolant liquid of radiator outflow；Heat is passed to cooling air by the secondary radiator from the coolant liquid；After the coolant liquid release heat, a radiator is back to via the inlet pipe；The present invention can be according to the running environment and operating mode of electric rail car group, dynamic regulation rotation speed of fan and cooling air delivery, and then controls intensity of cooling, avoids sub-cooled.
Description
Technical field
The present invention relates to technical field of heat exchange, specially a kind of electric rail car group traction convertor Intelligence Cooling System.
Background technology
Currently, the intelligent cooling technology applied to electric rail car group is not fully realized also and enough attention.Existing skill
In art, there are intensities of cooling to adjust constant, energy profit for cooling system used by equipment compartment endogenous pyrogen under the vehicle of electric rail car group
With inefficient defect；Some are applied to cooling system such as tractive transformer cooling system, the traction current transformation of electric rail car group
Device cooling system, traction electric machine cooling system etc. still fall within passive cooling system, and the heat dissipation design standard of these cooling systems is
Meet cooling requirements when full load, control strategy is extensive single-point control mode, is with traction convertor cooling system
Example, general control strategy is in the prior art：Cooling system has high speed and two kinds of rotating speed methods of operation of low speed with wind turbine, when
When train speed per hour is more than n kilometers, the wind turbine uses high-speed cruising mode, when train enters the station or train speed per hour is less than n kilometers,
The wind turbine uses the low speed method of operation；This control strategy cannot be according to the running environment of electric rail car group and with operating mode ratio
Such as the variation of thermal losses size, to accurately control the cooling air delivery of traction convertor cooling system, and then cannot accurately control
The heat transfer process of heat source in traction convertor processed leads to undercooling at low ambient temperatures or under partial load condition, disappears
Unnecessary auxiliary power is consumed, energy waste is caused, economy is bad, while high noise.
Invention content
The it is proposed of the present invention in view of the above problems, and intensity of cooling can be automatically adjusted, improve using energy source by developing one kind
The electric rail car group traction convertor Intelligence Cooling System of efficiency.
The technological means of the present invention is as follows：
A kind of electric rail car group traction convertor Intelligence Cooling System, the electric rail car group has equipment compartment, described to lead
Draw current transformer to be set in equipment compartment, the cooling system includes：Heat source component included by the traction convertor is installed
Radiator and the secondary cooling apparatus being set in the equipment compartment；The coolant liquid flowed out by a radiator
Take away the heat that the heat source component generates；The secondary cooling apparatus includes：
The secondary radiator being connected to by coolant liquid circulation line with a radiator；The coolant liquid circulation line
Including inlet pipe and outlet tube road；
Pump mounted on the outlet tube road；By the coolant liquid of radiator outflow via outlet tube road and pump
Into the secondary radiator；Heat is passed to cooling air by the secondary radiator from the coolant liquid；The coolant liquid
After discharging heat, a radiator is back to via the inlet pipe；
Further, the equipment compartment has the first air filter being arranged on equipment compartment side skirt；It is described secondary
Radiator has inlet side and air side；The secondary cooling apparatus further includes：
The inlet channel being arranged between first air filter and the secondary radiator inlet side；
And at least one set of wind turbine in the secondary radiator air side is set；
Further, the assembling is in the fan box with air inlet and air outlet；The secondary cooling dress
It further includes the hot gas re-flow device being arranged on the fan box side wall to set；The hot gas re-flow device includes：With the wind
The air return pipeline that box body is connected and the distribution lines being connected to air return pipeline and equipment compartment setting position；By wind
The hot-air flowed out in box body is back to the equipment compartment setting position by the air return pipeline and distribution lines；It is described
Air return pipeline is equipped with electric control valve；
In addition, the cooling system further includes：Coolant clarifier in the inlet pipe and with go out liquid
The expansion tank that pipeline is connected；The secondary cooling apparatus further includes the second air being arranged in the secondary radiator inlet side
Filter；Radiator uses liquid cooling base；The liquid cooling base has the inner cavity filled with coolant liquid；
Further, the cooling system further includes intelligent control subsystem, and the intelligent control subsystem is by the wind turbine
Rotating speed be divided into [0, n1, n2 ..., ni ..., ne] multiple speed levels, i values are 0,1,2 ..., e；
Further, the intelligent control subsystem is dynamic according to the electric power using default cooling effect as qualifications
The operating parameter of vehicle group, the running parameter of the traction convertor and equipment indoor environment condition are adjusted at the rotation speed of fan
In a certain speed level, and then realize the control to the cooling air delivery；
Further, the intelligent control subsystem obtains the rotation speed of fan ni under i operating modes by following process：
Rotation speed of fan ni ' under i operating modes is obtained using first way, the first way is as follows：
1. obtaining heat dissipation capacity Q needed for the traction convertor under i operating modes by formula Q=N × (1- η)；Wherein, N indicates i
The input power of the traction convertor, η indicate the efficiency of the traction convertor under i operating modes under operating mode；
2. being obtained by formula Q=ε × Wa × (ta1-tw1) and formula W a=Va1 × ρ a1 × Cpa1 described under i operating modes
Cooling air inlet flow velocity Va1 needed for secondary radiator；Wherein, ε indicate i operating modes under the cooling system heat transfer efficiency,
Wa indicates that the minimum thermal capacity of the cooling system under i operating modes, ta1 indicate the cooling air of the secondary radiator under i operating modes
Inlet temperature, tw1 indicate that the coolant inlet temperature of the secondary radiator under i operating modes, ρ a1 indicate described secondary under i operating modes
The cooling air inlet density of radiator, Cpa1 indicate the cooling air inlet specific heat at constant pressure of the secondary radiator under i operating modes；
3. obtaining the rotation speed of fan ni ' under i operating modes by formula ni '=Va1/Vae × ne；Wherein, Vae indicates specified work
The cooling air inlet flow velocity of the secondary radiator, ne indicate rotation speed of fan under declared working condition under condition；
Rotation speed of fan ni " under i operating modes is obtained using the second way, the second way is as follows：
1. according to formula Ps=A1 × V2+ B1 × V+C1 obtains the total static pressure Ps of required wind turbine；Wherein, A1, B1, C1 are setting
Constant, V are compressor flow；
2. according to formula Ps=A2 × Va1B2Obtain the cooling air inlet flow velocity needed for the secondary radiator under i operating modes
Va1；Wherein, A2, B2 are setting constant；
3. passing through formula ni "=Va1/Vae × ne obtains the rotation speed of fan ni under i operating modes "；Wherein, Vae indicates specified work
The cooling air inlet flow velocity of the secondary radiator, ne indicate rotation speed of fan under declared working condition under condition；
Compare the rotation speed of fan ni ' of first way acquisition, the rotation speed of fan ni " that the second way obtains, wind turbine is turned
The greater in fast ni ' and rotation speed of fan ni " is as the rotation speed of fan ni under i operating modes；
Further, the heat sky for being back to equipment compartment setting position is controlled by adjusting the aperture of the electric control valve
Throughput, so that temperature is in pre-set pressure range not less than pressure in preset temperature and equipment compartment in equipment compartment；
In addition, the cooling system further includes real-time monitoring subsystem, which includes at least：
Power monitoring module for monitoring the traction convertor input power；
The first temperature monitoring module for the cooling air inlet temperature for monitoring the secondary radiator；
The first flow monitoring module for the cooling air inlet flow velocity for monitoring the secondary radiator；
Second temperature monitoring modular for the coolant inlet temperature for monitoring a radiator；
With the third temperature monitoring module of the coolant inlet temperature for monitoring the secondary radiator；
In addition, the real-time monitoring subsystem further includes：
First pressure monitoring modular for the cooling air inlet pressure for monitoring the secondary radiator；
Second pressure monitoring modular for the coolant inlet pressure for monitoring a radiator；
The 4th temperature monitoring module for temperature in monitoring device cabin；
Third pressure monitoring module for pressure in monitoring device cabin；
The 5th temperature monitoring module for the cooling liquid outlet temperature for monitoring a radiator；
The 4th pressure monitoring module for the cooling liquid outlet pressure for monitoring a radiator；
The 6th temperature monitoring module for the hot air outlet temperature for monitoring the hot gas re-flow device；
The 5th pressure monitoring module for the hot air outlet pressure for monitoring the hot gas re-flow device；
Second flow speed monitoring modular for the hot air outlet flow velocity for monitoring the hot gas re-flow device；
Test module for monitoring the wind turbine electric current, voltage and power；
And the rotation speed monitoring module for monitoring the rotation speed of fan.
By adopting the above-described technical solution, electric rail car group traction convertor Intelligence Cooling System provided by the invention,
From the system integration and whole angle, plan as a whole the relationship between heat and heat source, vehicle, using the side of Comprehensive Control and system administration
Formula, relevant each part set of cooling system will be transmitted with heat becomes an effective system, control and optimization heat transfer process, protects
The safe and highly efficient operation of each critical component and cooling system is demonstrate,proved, convenient for perfect manage and reasonably utilizes thermal energy；It being capable of basis
The running environment and operating mode of electric rail car group, dynamic regulation rotation speed of fan and cooling air delivery, and then intensity of cooling is controlled, it keeps away
Exempt from sub-cooled；Intelligence Cooling System of the present invention can reduce auxiliary power consumption, improve radiating efficiency and using energy source
Efficiency, economy is relatively preferable, can reduce noise, reduces the pollution of Noise upon Environment, improves the comfort of EMU passenger；
In addition, the dynamic regulation of equipment compartment environment temperature under vehicle may be implemented in Intelligence Cooling System of the present invention, improve in equipment compartment
The serviceability and vehicle of equipment meet the requirement of the energy-saving and environmental protection of electric rail car group and safety to the adaptability of environment.
Description of the drawings
Fig. 1 is the structural schematic diagram of Intelligence Cooling System of the present invention；
Fig. 2 is the structure diagram of real-time monitoring subsystem of the present invention；
In figure：1, equipment compartment, 2, traction convertor, 3, heat source component, 4, radiators, 5, secondary radiator, 6, into
Liquid pipeline, 7, outlet tube road, 8, pump, 9, side skirt, the 10, first air filter, 11, inlet channel, 12, wind turbine, 13, wind turbine
Babinet, 14, air inlet, 15, air outlet, 16, hot gas re-flow device, 17, air return pipeline, 18, distribution lines, 19, equipment compartment sets
Place is set in positioning, and 20, electric control valve, 21, coolant clarifier, 22, expansion tank, the 23, second air filter.
Specific implementation mode
A kind of electric rail car group traction convertor Intelligence Cooling System as depicted in figs. 1 and 2, the electric rail car group tool
There are equipment compartment 1, the traction convertor 2 to be set in equipment compartment 1, the cooling system includes：The traction convertor 2 is installed
Radiator 4 of included heat source component 3 and the secondary cooling apparatus being set in the equipment compartment 1；By described one
The coolant liquid that secondary radiator 4 flows out takes away the heat of the generation of the heat source component 3；The secondary cooling apparatus includes：With it is described
The secondary radiator 5 that radiator 4 is connected to by coolant liquid circulation line；The coolant liquid circulation line includes inlet pipe
6 and outlet tube road 7；Pump 8 on the outlet tube road 7；The coolant liquid flowed out by a radiator 4 is via going out liquid
Pipeline 7 and pump 8 enter the secondary radiator 5；Heat is passed to cooling sky by the secondary radiator 5 from the coolant liquid
Gas；After the coolant liquid release heat, a radiator 4 is back to via the inlet pipe 6；Further, described
Equipment compartment 1 has the first air filter 10 being arranged on 1 side skirt 9 of equipment compartment；The secondary radiator 5 has inlet side
The air side and；The secondary cooling apparatus further includes：Setting first air filter 10 and the secondary radiator 5 into
Inlet channel 11 between wind side；And at least one set of wind turbine 12 in 5 air side of secondary radiator is set；Further
Ground, the wind turbine 12 are mounted in the fan box 13 with air inlet 14 and air outlet 15；The secondary cooling apparatus also wraps
Include the hot gas re-flow device 16 being arranged on 13 side wall of the fan box；The hot gas re-flow device 16 includes：With the wind
The air return pipeline 17 that box body 13 is connected and the distributor pipe being connected to air return pipeline 17 and equipment compartment setting position 19
Road 18；By the hot-air flowed out in fan box 13 the equipment compartment is back to by the air return pipeline 17 and distribution lines 18
Setting position 19；The air return pipeline 17 is equipped with electric control valve 20；In addition, the cooling system further includes：Mounted on institute
The expansion tank 22 stated the coolant clarifier 21 in inlet pipe 6 and be connected with outlet tube road 7；The secondary cooling dress
It further includes the second air filter 23 being arranged in 5 inlet side of secondary radiator to set；Radiator 4 uses liquid cooling
Substrate；The liquid cooling base has the inner cavity filled with coolant liquid；Further, the cooling system further includes intelligent control subsystem
System, the intelligent control subsystem 12 rotating speed of the wind turbine is divided into [0, n1, n2 ..., ni ..., ne] multiple rotating speed grades
Not, i values be 0,1,2 ..., e；Further, the intelligent control subsystem is using default cooling effect as qualifications,
It is adjusted according to environmental condition in the operating parameter of the electric rail car group, the running parameter of the traction convertor 2 and equipment compartment 1
It saves 12 rotating speed of the wind turbine and is in a certain speed level, and then realize the control to the cooling air delivery；Further
Ground, the intelligent control subsystem obtain the 12 rotating speed ni of wind turbine under i operating modes by following process：It is obtained using first way
12 rotating speed ni ' of wind turbine under i operating modes, the first way are as follows：1. obtaining institute under i operating modes by formula Q=N × (1- η)
State heat dissipation capacity Q needed for traction convertor 2；Wherein, N indicates that the input power of the traction convertor 2 under i operating modes, η indicate i works
The efficiency of the traction convertor 2 under condition；2. by formula Q=ε × Wa × (ta1-tw1) and formula W a=Va1 × ρ a1 ×
Cpa1 obtains the cooling air inlet flow velocity Va1 needed for the secondary radiator 5 under i operating modes；Wherein, ε indicates described under i operating modes
Heat transfer efficiency, the Wa of cooling system indicate that the minimum thermal capacity of the cooling system under i operating modes, ta1 indicate described two under i operating modes
The cooling air inlet temperature of secondary radiator 5, tw1 indicate the coolant inlet temperature of the secondary radiator 5, ρ a1 under i operating modes
Indicate that the cooling air inlet density of the secondary radiator 5 under i operating modes, Cpa1 indicate the secondary radiator 5 under i operating modes
Cooling air inlet specific heat at constant pressure；3. obtaining the 12 rotating speed ni ' of wind turbine under i operating modes by formula ni '=Va1/Vae × ne；Its
In, Vae indicates that the cooling air inlet flow velocity of the secondary radiator 5 under declared working condition, ne indicate wind turbine 12 under declared working condition
Rotating speed；12 rotating speed ni " of wind turbine under i operating modes is obtained using the second way, the second way is as follows：1. according to formula Ps
=A1 × V2+ B1 × V+C1 obtains 12 total static pressure Ps of required wind turbine；Wherein, A1, B1, C1 are setting constant, and V is compressor flow；
2. according to formula Ps=A2 × Va1B2Obtain the cooling air inlet flow velocity Va1 needed for the secondary radiator 5 under i operating modes；Its
In, A2, B2 are setting constant；3. passing through formula ni "=Va1/Vae × ne obtains the 12 rotating speed ni of wind turbine under i operating modes "；Wherein,
Vae indicates that the cooling air inlet flow velocity of the secondary radiator 5 under declared working condition, ne indicate 12 turns of wind turbine under declared working condition
Speed；Compare the 12 rotating speed ni ' of wind turbine of first way acquisition, the 12 rotating speed ni " of wind turbine that the second way obtains, by 12 turns of wind turbine
The greater in fast ni ' and 12 rotating speed ni " of wind turbine is as the 12 rotating speed ni of wind turbine under i operating modes；Further, by described in adjusting
The aperture of electric control valve 20 is back to the hot air flowrate of equipment compartment setting position 19 to control, so that in equipment compartment 1
Temperature is in pre-set pressure range not less than pressure in preset temperature and equipment compartment 1；In addition, the cooling system further includes
Real-time monitoring subsystem, the real-time monitoring subsystem include at least：Power for monitoring 2 input power of the traction convertor
Monitoring modular；The first temperature monitoring module for the cooling air inlet temperature for monitoring the secondary radiator 5；For monitoring
First flow monitoring module of the cooling air inlet flow velocity of the secondary radiator 5；For monitoring a radiator 4
The second temperature monitoring modular of coolant inlet temperature；With the coolant inlet temperature for monitoring the secondary radiator 5
Third temperature monitoring module；In addition, the real-time monitoring subsystem further includes：Cooling for monitoring the secondary radiator 5
The first pressure monitoring modular of air inlet pressure；Second of coolant inlet pressure for monitoring a radiator 4
Pressure monitoring module；The 4th temperature monitoring module for temperature in monitoring device cabin 1；For pressure in monitoring device cabin 1
Third pressure monitoring module；The 5th temperature monitoring module for the cooling liquid outlet temperature for monitoring a radiator 4；With
In the 4th pressure monitoring module of the cooling liquid outlet pressure for monitoring a radiator 4；For monitoring the hot gas re-flow
6th temperature monitoring module of the hot air outlet temperature of device 16；Hot-air for monitoring the hot gas re-flow device 16 goes out
5th pressure monitoring module of mouth pressure；Second flow speed for the hot air outlet flow velocity for monitoring the hot gas re-flow device 16
Monitoring modular；Test module for monitoring 12 electric current of the wind turbine, voltage and power；And for monitoring 12 turns of the wind turbine
The rotation speed monitoring module of speed.After cooling air of the present invention is via the first air filter 10, pass through inlet channel 11 and
Two air filters 23 enter secondary radiator 5 by inlet side, form hot-air after carrying out heat exchange with the coolant liquid, the heat
Air flows into fan box 13 by the air inlet 14 of air side and fan box 13, and a part passes through the air outlet of fan box 13
It is flowed out after 15, and finally flows to atmospheric environment, another part is back to equipment compartment setting position by hot gas re-flow device 16
19；The coolant inlet temperature tw2 that the default cooling effect can refer to a radiator 4 is not more than setting value tw2e；It is described
Preset temperature can be with value for 25 DEG C of ﹣；The pre-set pressure range can be with value for 0~500Pa；The coolant liquid can be
Water, when coolant liquid is water, the liquid cooling base uses water-cooling base plate；Heat source component 3 included by traction convertor 2 includes whole
Flow device, inverter constant power module；The real-time monitoring system further includes for monitoring each power module input and output electric current
Current monitoring module, and monitor the voltage monitoring module of each power module input and output voltage；The expansion tank 22 has liquid
Level controller；Electric power measurement analyzer may be used in the power monitoring module；First temperature monitoring module, the second temperature
Spend monitoring modular, third temperature monitoring module, the 4th temperature monitoring module, the 5th temperature monitoring module and the 6th temperature monitoring mould
Temperature sensor may be used in block；The first pressure monitoring modular, second pressure monitoring modular, third pressure monitoring module,
Pressure sensor may be used in 4th pressure monitoring module and the 5th pressure monitoring module；The first flow monitoring module,
Two flow monitoring modules use current meter；Electrical power measuring and analysing meter may be used in the test module；The rotation speed monitoring mould
Speed probe may be used in block；The real-time monitoring subsystem further includes cooling empty after the first air filter 10 to flowing through
Temperature sensor that temperature degree is monitored, the pressure being monitored to flowing through the cooling air pressure after the first air filter 10
The temperature sensor and pressure sensor near capital equipment in equipment compartment 1 are arranged in force snesor；Expansion tank of the present invention
22 can be used for the supplement of coolant liquid and the exhaust of secondary radiator 5, specifically, pump 8 inlet and are connected with the expansion tank 22
Logical, secondary radiator 5 connects the expansion tank 22 by an exhaust pipe.
As shown in Figure 1, under the i-th operating mode, Pv1 expressions flow through the cooling air pressure after the first air filter 10, tv1
Expression flows through the cooling air temperature after the first air filter 10, and Pa1 indicates the cooling air inlet of the secondary radiator 5
Pressure, ta1 indicate that the cooling air inlet temperature of the secondary radiator 5, Va1 indicate the cooling empty of the secondary radiator 5
Gas inlet velocity, Pa2 indicate that the hot air outlet pressure of hot gas re-flow device 16, ta2 indicate that the heat of hot gas re-flow device 16 is empty
Gas outlet temperature, Va2 indicate that the hot air outlet flow velocity of hot gas re-flow device 16, N1, N2 indicate the motor input of wind turbine 1 respectively
The power input to machine of power, wind turbine 2, n1, n2 indicate that the motor speed of the motor speed of wind turbine 1, wind turbine 2, I expressions are led respectively
Draw the input current of current transformer 2, U indicates that the input voltage of traction convertor 2, N indicate the input power of traction convertor 2, Pw1
Indicate that the cooling liquid outlet pressure of a radiator 4, tw1 indicate that the cooling liquid outlet temperature of a radiator 4, Pw2 indicate one
The coolant inlet pressure of secondary radiator 4, tw2 indicate that the coolant inlet temperature of a radiator 4, Pvi indicate that equipment compartment is set
The air pressure at place 19 is set in positioning, and tvi indicates the air themperature of equipment compartment setting position 19.
The present invention plans as a whole the relationship between heat and heat source, vehicle, using Comprehensive Control from the system integration and whole angle
With the mode of system administration, relevant each part set of cooling system will be transmitted with heat becomes an effective system, control and optimization
Heat transfer process, ensures the safe and highly efficient operation of each critical component and cooling system, manages perfectly and reasonably utilizes heat
Energy.
Electric rail car group traction convertor Intelligence Cooling System provided by the invention, can be according to the operation of electric rail car group
Environment and operating mode, dynamic regulation rotation speed of fan and cooling air delivery, and then intensity of cooling is controlled, avoid sub-cooled；This hair
The bright Intelligence Cooling System can reduce auxiliary power consumption, improve radiating efficiency and efficiency of energy utilization, economy are opposite
Preferably, noise can be reduced, the pollution of Noise upon Environment is reduced, improves the comfort of EMU passenger；In addition, of the present invention
The dynamic regulation of equipment compartment environment temperature under vehicle may be implemented in Intelligence Cooling System, improves the serviceability of equipment below deck equipment
And vehicle meets the requirement of the energy-saving and environmental protection of electric rail car group and safety to the adaptability of environment.
The present invention can realize the control of equipment indoor environment temperature, pressure, ensure equipment indoor environment temperature not less than-
Pressure is in 0~500Pa of micro-positive pressure in 25 DEG C and equipment compartment, and then advantageously reduces soiled environment and get off outer soiled object
Grain enters equipment compartment, reduces influence and damage of the soiled to equipment compartment internal part.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of electric rail car group traction convertor Intelligence Cooling System, the electric rail car group has equipment compartment, the traction
Current transformer is set in equipment compartment, it is characterised in that the cooling system includes：Heat included by the traction convertor is installed
Radiator of source block and the secondary cooling apparatus being set in the equipment compartment；It is flowed out by a radiator
Coolant liquid take away the heat that the heat source component generates；The secondary cooling apparatus includes：
The secondary radiator being connected to by coolant liquid circulation line with a radiator；The coolant liquid circulation line includes
Inlet pipe and outlet tube road；
Pump mounted on the outlet tube road；Entered via outlet tube road and pump by the coolant liquid of radiator outflow
The secondary radiator；Heat is passed to cooling air by the secondary radiator from the coolant liquid；The coolant liquid release
After heat, a radiator is back to via the inlet pipe；
The equipment compartment has the first air filter being arranged on equipment compartment side skirt；The secondary radiator has air inlet
Side and air side；The secondary cooling apparatus further includes：
The inlet channel being arranged between first air filter and the secondary radiator inlet side；
And at least one set of wind turbine in the secondary radiator air side is set；
The assembling is in the fan box with air inlet and air outlet；The secondary cooling apparatus further includes that setting exists
Hot gas re-flow device on the fan box side wall；The hot gas re-flow device includes：It is connected with the fan box
Air return pipeline and the distribution lines being connected to air return pipeline and equipment compartment setting position；By what is flowed out in fan box
Hot-air is back to the equipment compartment setting position by the air return pipeline and distribution lines；The air return pipeline is equipped with
Electric control valve.
2. electric rail car group traction convertor Intelligence Cooling System according to claim 1, it is characterised in that the cooling
System further includes：Coolant clarifier in the inlet pipe and the expansion tank being connected with outlet tube road；Institute
It further includes the second air filter being arranged in the secondary radiator inlet side to state secondary cooling apparatus；Radiator
Using liquid cooling base；The liquid cooling base has the inner cavity filled with coolant liquid.
3. electric rail car group traction convertor Intelligence Cooling System according to claim 1, it is characterised in that the cooling
System further includes intelligent control subsystem, the intelligent control subsystem rotation speed of fan is divided into [0, n1, n2 ...,
Ni ..., ne] multiple speed levels, i values are 0,1,2 ..., e.
4. electric rail car group traction convertor Intelligence Cooling System according to claim 3, it is characterised in that the intelligence
Control subsystem is become using default cooling effect as qualifications according to the operating parameter of the electric rail car group, the traction
The running parameter and equipment indoor environment condition for flowing device are in a certain speed level, Jin Ershi to adjust the rotation speed of fan
Now to the control of the cooling air delivery.
5. electric rail car group traction convertor Intelligence Cooling System according to claim 3, it is characterised in that the intelligence
Control subsystem obtains the rotation speed of fan ni under i operating modes by following process：
Rotation speed of fan ni ' under i operating modes is obtained using first way, the first way is as follows：
1. obtaining heat dissipation capacity Q needed for the traction convertor under i operating modes by formula Q=N × (1- η)；Wherein, N indicates i operating modes
Under the input power of the traction convertor, η indicate the efficiency of the traction convertor under i operating modes；
2. being obtained by formula Q=ε × Wa × (ta1-tw1) and formula W a=Va1 × ρ a1 × Cpa1 described secondary under i operating modes
Cooling air inlet flow velocity Va1 needed for radiator；Wherein, ε indicates heat transfer efficiency, the Wa tables of the cooling system under i operating modes
Show that the minimum thermal capacity of the cooling system under i operating modes, ta1 indicate the cooling air inlet of the secondary radiator under i operating modes
Temperature, tw1 indicate that the coolant inlet temperature of the secondary radiator under i operating modes, ρ a1 indicate the secondary heat dissipation under i operating modes
The cooling air inlet density of device, Cpa1 indicate the cooling air inlet specific heat at constant pressure of the secondary radiator under i operating modes；
3. obtaining the rotation speed of fan ni ' under i operating modes by formula ni '=Va1/Vae × ne；Wherein, Vae is indicated under declared working condition
Cooling air inlet flow velocity, the ne of the secondary radiator indicate rotation speed of fan under declared working condition；
Rotation speed of fan ni " under i operating modes is obtained using the second way, the second way is as follows：
1. according to formula Ps=A1 × V2+ B1 × V+C1 obtains the total static pressure Ps of required wind turbine；Wherein, A1, B1, C1 are setting constant,
V is compressor flow；
2. according to formula Ps=A2 × Va1B2Obtain the cooling air inlet flow velocity Va1 needed for the secondary radiator under i operating modes；
Wherein, A2, B2 are setting constant；
3. passing through formula ni "=Va1/Vae × ne obtains the rotation speed of fan ni under i operating modes "；Wherein, Vae is indicated under declared working condition
Cooling air inlet flow velocity, the ne of the secondary radiator indicate rotation speed of fan under declared working condition；
Compare the rotation speed of fan ni ' of first way acquisition, the rotation speed of fan ni " that the second way obtains, by rotation speed of fan ni '
With the greater in rotation speed of fan ni " as the rotation speed of fan ni under i operating modes.
6. electric rail car group traction convertor Intelligence Cooling System according to claim 1, it is characterised in that pass through adjusting
The aperture of the electric control valve is back to the hot air flowrate of equipment compartment setting position to control, so that warm in equipment compartment
Degree is in pre-set pressure range not less than pressure in preset temperature and equipment compartment.
7. electric rail car group traction convertor Intelligence Cooling System according to claim 1, it is characterised in that the cooling
System further includes real-time monitoring subsystem, which includes at least：
Power monitoring module for monitoring the traction convertor input power；
The first temperature monitoring module for the cooling air inlet temperature for monitoring the secondary radiator；
The first flow monitoring module for the cooling air inlet flow velocity for monitoring the secondary radiator；
Second temperature monitoring modular for the coolant inlet temperature for monitoring a radiator；
With the third temperature monitoring module of the coolant inlet temperature for monitoring the secondary radiator.
8. electric rail car group traction convertor Intelligence Cooling System according to claim 7, it is characterised in that described real-time
Monitoring subsystem further includes：
First pressure monitoring modular for the cooling air inlet pressure for monitoring the secondary radiator；
Second pressure monitoring modular for the coolant inlet pressure for monitoring a radiator；
The 4th temperature monitoring module for temperature in monitoring device cabin；
Third pressure monitoring module for pressure in monitoring device cabin；
The 5th temperature monitoring module for the cooling liquid outlet temperature for monitoring a radiator；
The 4th pressure monitoring module for the cooling liquid outlet pressure for monitoring a radiator；
The 6th temperature monitoring module for the hot air outlet temperature for monitoring the hot gas re-flow device；
The 5th pressure monitoring module for the hot air outlet pressure for monitoring the hot gas re-flow device；
Second flow speed monitoring modular for the hot air outlet flow velocity for monitoring the hot gas re-flow device；
Test module for monitoring the wind turbine electric current, voltage and power；
And the rotation speed monitoring module for monitoring the rotation speed of fan.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110891397B (en) * | 2018-09-07 | 2021-07-13 | 中车株洲电力机车研究所有限公司 | Water cooling system of converter and control method thereof |
| CN111504671B (en) * | 2019-01-30 | 2023-01-20 | 株洲中车时代电气股份有限公司 | Temperature and air pressure composite environment test device and method for converter water cooling system |
| CN112954944B (en) * | 2019-11-26 | 2024-06-21 | 中车大连电力牵引研发中心有限公司 | Vehicle-mounted converter thermal management system and method and vehicle-mounted converter |
| CN112910180A (en) * | 2019-12-03 | 2021-06-04 | 中车唐山机车车辆有限公司 | Rail vehicle and traction motor cooling system thereof |
| CN113382593B (en) * | 2020-03-09 | 2022-11-08 | 株洲中车时代电气股份有限公司 | Refrigerating device applied to light rail train |
| CN111959253A (en) * | 2020-07-15 | 2020-11-20 | 北汽福田汽车股份有限公司 | Cooling control method and system and electric automobile |
| CN116096039A (en) * | 2022-12-30 | 2023-05-09 | 中车永济电机有限公司 | Cooling system |
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