CN105346394B - A kind of railway freight-car self-power supply device and method - Google Patents
A kind of railway freight-car self-power supply device and method Download PDFInfo
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- CN105346394B CN105346394B CN201510653776.8A CN201510653776A CN105346394B CN 105346394 B CN105346394 B CN 105346394B CN 201510653776 A CN201510653776 A CN 201510653776A CN 105346394 B CN105346394 B CN 105346394B
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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
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Abstract
The invention discloses a kind of railway freight-car self-power supply device and method, device to include：Gear unit, DC generation unit, energy-storage units, control unit and voltage transformation module.The mechanical energy for coming from axletree is transferred to DC generation unit by gear unit.The mechanical energy of gear unit transmission is converted into AC energy by DC generation unit, and is exported after AC energy is converted into direct current energy to energy-storage units.Energy-storage units are charged and stop charging under the control of the control unit, and export DC voltage to voltage transformation module.The DC voltage that control unit exports according to energy-storage units, charge control is carried out to energy-storage units.The DC voltage conversion that voltage transformation module exports energy-storage units is the DC voltage needed for control unit and lorry electronic equipment.The simple in construction, strong adaptability of the present invention, good electric property, reliability are high, easy to maintenance, lorry axletree energy can be converted into electrical energy for storage, to meet the power demands of vehicle electronic device.
Description
Technical field
The present invention relates to rail vehicles electrical equipment, more particularly, to a kind of applied to goods train vehicle
Self-power supply device and method, for solving the confession of the mobile units such as lorry automation, intelligent required electronic monitoring and protection
Electric demand.
Background technology
Railway is the important basic facilities of country, the main artery of national economy, the backbone of communications and transportation system, has fortune
The advantages such as amount is big, the low, energy-conserving and environment-protective of cost.In recent years, with the fast development of China's economy, railway transportation, which achieves, to make us
The effect attracted attention.In passenger area, high-speed railway and EMUs obtain huge development leap, especially EMUs, due to every
Section compartment has electric power system to make power supply, and electronic monitoring obtains very big with mobile units such as protections in terms of automation, intellectuality
Lifting, it is ensured that EMUs operation it is safe and reliable, improve the comfort level of seating.And in terms of shipping, " syntonic type " is handed over
Flow transmission electric power locomotive and just progressively substitute " Shaoshan " serial DC Transmission electric locomotive, the speed and freight volume of goods train by
Step lifting.Due to goods train and passenger train in vehicle structure, with safeguarding bigger difference in system be present, at present in railway
Conventional electric power system is not yet designed on lorry, therefore the mobile unit such as electronic monitoring and protection can not be installed, is seriously constrained
The raising of Heavy-Haul Railway and speed-up railway freight safe running performance.
Long-term operation experience have shown that, be to improve iron using mobile units, such as electronic antiskid device such as electronic monitoring and protections
Afloat car effective means safe for operation.It would therefore be highly desirable to invent a kind of railway freight-car self-powered applied and reliably and be easily installed
Device, for meeting the power demands of the mobile units such as lorry automation, intelligent required electronic monitoring and protection.
At present, for above-mentioned technical problem, some scholars propose that solving mobile unit using vibration generating device scheme supplies
Electric problem.Program principle is that can produce a variety of vibrations on vehicle when lorry is run, by that energy will be converted caused by vibration
To power for car-mounted electronic device for electric energy.The vibration generating device mainly includes ball screw, planetary gear, clutch bearing
With generator etc..However, such device structure is sufficiently complex, installation inconvenience, there is bigger difficulty in energy conversion, therefore in work
It is relatively difficult to achieve in journey.Some scholars' proposition uses air motor electricity generating plan, and the program mainly includes air motor and generator,
The gas-powered that air motor is discharged by vehicle brake cylinder, energy is transmitted by bearing between generator and motor.But the device
Electricity can be just sent only in train braking or alleviation to come, and the electric energy of its output is extremely limited, therefore practicality is not also strong.
The content of the invention
In view of this, it is an object of the invention to provide a kind of railway freight-car self-power supply device and method, simple in construction, ring
Border strong adaptability, good electric property, reliability are high, Maintenance and Repair are convenient, and axletree energy can be partially converted into electric energy and stored up
Deposit, to meet the power demands of the mobile units such as lorry automation, intelligent required electronic monitoring and protection.
In order to realize foregoing invention purpose, the technology that the present invention specifically provides a kind of railway freight-car self-power supply device is realized
Scheme, railway freight-car self-power supply device, including：Gear unit, DC generation unit, energy-storage units, control unit and voltage become
Change unit.
The mechanical energy for coming from axletree is transferred to the DC generation unit by the gear unit；
The mechanical energy that the gear unit transmits is converted into AC energy by the DC generation unit, and by AC energy
Exported after being converted to direct current energy to the energy-storage units；
The energy-storage units are charged under the control of described control unit and stop charging, and to the voltage transformation
Unit exports DC voltage；
The DC voltage that described control unit exports according to the energy-storage units, charging control is carried out to the energy-storage units
System；
The DC voltage conversion that the voltage transformation module exports the energy-storage units is described control unit and lorry
DC voltage needed for electronic equipment.
Preferably, the DC generation unit further comprises generator, rectifier and adjuster, and the generator uses
Separate excitation asynchronous generator.Alternating current caused by the generator into direct current and is exported to the storage by the rectifier rectification
Can unit.The adjuster is connected with the rectifier, and the magnet exciting coil of the generator respectively, the adjuster according to
The DC voltage of the rectifier output adjusts the exciting current of the magnet exciting coil, so that the direct current of rectifier output
Voltages keep constant.
Preferably, the DC generation unit further comprises generator and controlled rectifier, and the generator is using forever
Magnetic-synchro generator.The generator is connected with the controlled rectifier, and the controlled rectifier uses and is based on turn-off device
Pwm pulse rectification circuit, the dutycycle by adjusting the turn-off device gate pulse exports the controlled rectifier
Steady dc voltage.
Preferably, the energy-storage units further comprise first switch and battery, the first switch and the electric power storage
Pond is connected, and the battery is connected in parallel on the input of the voltage transformation module.The open/close status of the first switch is by described
Control unit is controlled by detecting the output voltage of the battery, when the output voltage of the battery is less than the first electricity
When pressing setting value, described control unit controls the first switch closure, and the DC generation unit charges to the battery.
When the output voltage of the battery reaches second voltage setting value, described control unit controls the first switch to disconnect,
So that the battery stops charging.
Preferably, the energy-storage units also include the electric capacity in parallel with the battery.
Preferably, described device also includes temperature conditioning unit, temperature conditioning unit respectively with the DC generation unit, control unit
It is connected.The DC generation unit provides working power for the temperature conditioning unit, and temperature signal is sent to by the temperature conditioning unit
Described control unit, described control unit are radiated or heated control after handling temperature signal to the temperature conditioning unit
System.
Preferably, the temperature conditioning unit includes radiator, heater, temperature sensor, second switch and the 3rd switch.Institute
State second switch with the radiator to be connected, the 3rd switch is connected with the heater.The railway freight-car confesses Denso
Put and be arranged in seal box, the temperature sensor detects the temperature in the seal box and temperature signal is sent into the control
Unit processed, described control unit are differentiated according to temperature signal.When the temperature in the seal box is set less than the first temperature
During value, described control unit control the 3rd switch closure, start the heater.When the temperature in the seal box is higher than
During second temperature setting value, described control unit controls the second switch closure, starts the radiator.When the seal box
Interior temperature is higher than the first desired temperature and when being less than second temperature setting value, the radiator and the heater not work
Make.
Preferably, the railway freight-car self-power supply device include two or more by the gear unit, DC generation unit,
The module of energy-storage units, control unit and voltage transformation module composition, often save on railway freight-car and be independently arranged the module,
Axletree of the gear unit of each module with this section railway freight-car is connected.
The present invention also specifically provides a kind of railway freight-car realized based on above-mentioned railway freight-car self-power supply device certainly in addition
The technic relization scheme of method of supplying power to, railway freight-car confession method for electrically, comprises the following steps：
S101：The mechanical energy for coming from axletree is transferred to DC generation unit by gear unit；
S102：The mechanical energy that the gear unit transmits is converted into AC energy by DC generation unit, and by alternating current
Exported after direct current energy can be converted to energy-storage units；
S103：Control unit carries out charge control, storage to the energy-storage units according to the DC voltage that energy-storage units export
Energy unit is charged under the control of described control unit and stops charging, and exports direct current to the voltage transformation module
Pressure；
S104：The DC voltage conversion that voltage transformation module exports the energy-storage units is described control unit and lorry
DC voltage needed for electronic equipment.
Preferably, when the generator of the DC generation unit uses separate excitation asynchronous generator, the DC generation list
Member further comprises rectifier and adjuster, and the step S102 further comprises procedure below：
Alternating current caused by the generator into direct current and is exported to the energy-storage units by the rectifier rectification.
The DC voltage that the adjuster exports according to the rectifier adjusts the exciting current of the magnet exciting coil of the generator, so as to
The DC voltage of the rectifier output is set to keep constant.
When the generator of the DC generation unit uses magneto alternator, the DC generation unit is further
Including controlled rectifier, the step S102 further comprises procedure below：
The controlled rectifier uses the pwm pulse rectification circuit based on turn-off device, according to the controlled rectifier
The dutycycle of turn-off device gate pulse described in the DC voltage regulation of output so that the controlled rectifier output stabilization
DC voltage.
Preferably, the energy-storage units further comprise first switch and battery, and the step S103 further comprises
Procedure below：
When the output voltage of the battery is less than first voltage setting value, described control unit control described first is opened
Close and close, the DC generation unit charges to the battery.Set when the output voltage of the battery reaches second voltage
During definite value, described control unit controls the first switch to disconnect, so that the battery stops charging.
Preferably, the railway freight-car self-power supply device is further disposed in seal box, is provided with the seal box
Radiator, heater, temperature sensor, second switch and the 3rd switch, methods described further comprise temperature control process, the process
Comprise the following steps：
The temperature sensor detects the temperature in the seal box and temperature signal is sent into described control unit, institute
Control unit is stated according to temperature signal to be differentiated.It is described when the temperature in the seal box is less than the first desired temperature
Control unit control the 3rd switch closure, starts the heater.When the temperature in the seal box is higher than second temperature
During setting value, described control unit controls the second switch closure, starts the radiator.Temperature in the seal box
When being less than second temperature setting value higher than the first desired temperature, the radiator and the heater do not work.
By implementing the railway freight-car self-power supply device of the invention described above offer and the technical scheme of method, have has as follows
Beneficial effect：
(1) present invention by the mechanical energy of truck vehicle is in itself converted into electric energy, as the power supply of mobile unit, and part
Storage, is used when being stopped for lorry, without providing power supply by outside；
(2) present invention is easy to follow-up use, safeguards and overhaul all using unit-modularized design；
(3) present invention is compared with vibrating power-generation and air motor generation mode, and device is more reliable and more stable, environment adapts to energy
Power is stronger；
(4) present invention is internal carries temperature conditioning unit, can be automatically adjusted according to ambient temperature, when temperature is too low
Shi Qidong heaters, radiated when temperature is too high；
(5) control unit of the present invention can carry out discharge and recharge optimum management to energy-storage battery, it is ensured that the service life of battery is more
It is long；
(6) self-power supply device of each lorry of the invention is to work independently, be independent of each other, consequently facilitating truck vehicle
Split with combining.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other embodiments are obtained according to these accompanying drawings.
Fig. 1 is a kind of structure composition block diagram of embodiment of railway freight-car self-power supply device of the present invention；
Fig. 2 is that the generating of separate excitation asynchronous motor DC is single in a kind of embodiment of railway freight-car self-power supply device of the present invention
The circuit topological structure figure of member；
Fig. 3 is synchronous motor DC generation unit in a kind of embodiment of railway freight-car self-power supply device of the present invention
Circuit topological structure figure；
Fig. 4 is energy-storage units and voltage transformation module in a kind of embodiment of railway freight-car self-power supply device of the present invention
Circuit theory diagrams；
Fig. 5 is the circuit theory diagrams of temperature conditioning unit in a kind of embodiment of railway freight-car self-power supply device of the present invention；
Fig. 6 is a kind of circuit theory diagrams of embodiment of railway freight-car self-power supply device of the present invention；
Fig. 7 is a kind of arrangement knot of the embodiment of railway freight-car self-power supply device of the present invention on more railway freight-cars
Structure relation schematic diagram；
In figure：1- gear units, 2- DC generation units, 3- energy-storage units, 4- control units, 5- voltage transformation modules,
6- temperature conditioning units, 7- axletrees, 8- lorry electronic equipments, 21- generators, 22- rectifiers, 23- magnet exciting coils, 24- adjusters,
25- controlled rectifiers.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only
Only it is the part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
All other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
As shown in accompanying drawing 1 to accompanying drawing 7, railway freight-car self-power supply device of the present invention and the specific embodiment of method are given,
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in accompanying drawing 1 and accompanying drawing 6, a kind of specific embodiment of railway freight-car self-power supply device, including：Gear unit 1,
DC generation unit 2, energy-storage units 3, control unit 4 and voltage transformation module 5.
Gear unit 1 is mechanical part, and the mechanical energy for the axletree 7 for coming from lorry is transferred into DC generation unit 2
Generator 21, drive electric energy needed for the work generation of generator 21；Gear unit 1 should have the machinery such as good intensity, antidetonation special
Property, while need to consider the best match between the rotating speed of axletree 7 and the rotating speed of generator 21；
The mechanical energy that gear unit 1 transmits is converted into AC energy (voltage) Us by DC generation unit 2, and passes through electric power
Electronic installation is exported to energy-storage units 3 after AC energy (voltage) is converted into direct current energy (power supply) Ud1；
Energy-storage units 3 are charged under the control of control unit 4 and stop charging, and are exported to voltage transformation module 5
DC voltage；
The DC voltage that control unit 4 exports according to energy-storage units 3, charge control is carried out to energy-storage units 3；
The DC voltage conversion that voltage transformation module 5 exports energy-storage units 3 is control unit 4 and lorry electronic equipment 8
Required DC voltage.
As a kind of preferable specific embodiment of the present invention, railway freight-car self-power supply device still further comprises temperature conditioning unit
6, temperature conditioning unit 6 is connected with DC generation unit 2, control unit 4 respectively.DC generation unit 2 is that temperature conditioning unit 6 provides work
Temperature signal is sent to control unit 4 by power supply, temperature conditioning unit 6, control unit 4 temperature signal is handled after to temperature control list
Member 6 is radiated or computer heating control.
As shown in Figure 2, DC generation unit 2 is the energy source of lorry mobile unit (i.e. lorry electronic equipment 8),
Charged during normal work to energy-storage units 3.When generator 21 is using separate excitation asynchronous generator, DC generation unit 2 further wraps
Include generator 21, rectifier 22 and adjuster 24.Alternating current Us is rectified into direct current by rectifier 22 caused by generator 21
Ud1 is simultaneously exported to energy-storage units 3.Because energy-storage units 3 are with electric capacity effect, therefore the DC voltage exported is more steady.Regulation
Device 24 is connected with rectifier 22, and the magnet exciting coil 23 of generator 21 respectively, and adjuster 24 exports straight according to rectifier 22
The exciting current i of voltage adjustment magnet exciting coil 23 is flowed, so that the DC voltage that rectifier 22 exports keeps constant.Rectifier 22
For three-phase bridge rectifier structure, power electronic devices, its output voltage Ud1 such as diode can be used to be supplied to energy-storage units 3.
The power grade of the devices such as generator 21, rectifier 22 must is fulfilled for the lorry mobile unit such as all electronic monitorings and protection in itself
The power consumption demand of (lorry electronic equipment 8).
Because the speed of lorry operation is change, the rotating speed of axletree 7 also changes therewith, therefore during the work of generator 21
Rotating speed is also change.The output voltage Us of generator 21 is directly proportional to the rotating speed n of generator 21, and physical relationship formula is：Us=
N* φ * C (structural constant that wherein, φ is the magnetic flux of magnet exciting coil 23, C is generator 21).In order to keep the defeated of generator 21
Go out voltage stabilization, generator 21 must carry control device (i.e. adjuster 24), by adjusting the electric current i of magnet exciting coil 21, make
The output voltage of generator 21 keeps constant.The adjuster 24 can use contact voltage regulator, transistor type voltage to adjust
Save the structure type such as device and integrated circuit voltage regulator.Wherein, contact voltage regulator is a kind of mechanical-vibration type voltage
Adjuster, it utilizes the switching function of contact, changes the resistance of field circuit, keep the constant of voltage.Transistor voltage is adjusted
Device is the on-off action using transistor, controls the switching of generator field circuit to adjust the power in magnetic field, makes voltage
Keep constant.Integrated circuit voltage regulator is to utilize the dutycycle for changing field supply, to change the output voltage of generator,
Make output voltage constant.
As shown in Figure 3, when generator 21 is using magneto alternator, DC generation unit 2 further comprises generating electricity
Machine 21 and controlled rectifier 25.It is defeated to make because the output voltage Us of permagnetic synchronous motor changes with the rotating speed of generator 21
The DC voltage gone out keeps constant, it is therefore desirable to using controlled rectifier 25.Generator 21 is connected with controlled rectifier 25, controllable
Rectifier 25 uses the pwm pulse rectification circuit based on turn-off device.At this time, it may be necessary to a control device, according to controllable whole
The dutycycle for the DC voltage Ud1 regulation turn-off device gate pulses that device 25 exports is flowed, makes the output of controlled rectifier 25 stable
DC voltage Ud1, realize Voltage Stability Control.
As shown in Figure 4, energy-storage units 3 further comprise first switch KM1 and battery Q, and battery Q can use more
Form in parallel with the input of voltage transformation module 5 again after individual battery (Q1~Qn) series connection.First switch KM1 and battery
Q is connected, and battery Q is connected in parallel on the input of voltage transformation module 5.First switch KM1 open/close status is led to by control unit 4
The output voltage for crossing detection battery Q is controlled, when battery Q output voltage Ud2 is less than first voltage setting value, control
Unit 4 processed controls first switch KM1 closures, and DC generation unit 2 charges to battery Q.As battery Q output voltage Ud2
When reaching second voltage setting value (being full of voltage), control unit 4 controls first switch KM1 to disconnect, so that battery Q stops
Charging.By controlling first switch KM1 open/close, energy-storage units 3 are made not repeat discharge and recharge, so as to improve energy-storage units 3
Service life.Energy-storage units 3 can also include the electric capacity C in parallel with battery Q, and electric capacity C can also use multiple electric capacity (C1
~Cn) form in parallel with battery Q again after series connection.Wherein, battery Q and capacitor C both can be used individually, also can both knots
Close and use.Voltage transformation module 5 further uses DC/DC translation circuits, and voltage transformation module 5 exports energy-storage units 3 straight
Stream voltage Ud2 is transformed to DC voltage Ud3, Ud4 needed for the vehicle electronic device 8 of lorry etc., and needed for control unit 4
DC voltage Ud5.
As shown in Figure 5, temperature conditioning unit 6 include radiator FN, heater R, temperature sensor Rt, second switch KM2 and
3rd switch KM3.Second switch KM2 is connected with radiator FN, and the 3rd switch KM3 is connected with heater R.In view of the fortune of lorry
Row environment is complicated, it is necessary to adapt to extreme temperature while thawing (such as subzero 50 DEG C, 110 DEG C) and severe environmental conditions, therefore the present invention
Railway freight-car self-power supply device is arranged in the seal box of high-protection level by specific embodiment, to railway freight-car self-power supply device
Key equipment protected.As shown in the chain lines inframe of accompanying drawing 5 be to the power electronic element more sensitive to temperature,
Seal box can be realized the functions such as heating, heat extraction, whole device is fitted according to ambient temperature and the change of divergence of self-temperature
Should and its rugged environment temperature.Temperature sensor Rt detects the temperature in seal box and temperature signal is sent into control unit
4, control unit 4 is differentiated according to temperature signal.When the temperature in seal box is less than the first desired temperature t1, control is single
The switch KM3 closures of the control of member 4 the 3rd, start heater R.When the temperature in seal box is higher than second temperature setting value t2, control
Unit 4 processed controls second switch KM2 closures, starts radiator FN.When the temperature in seal box higher than the first desired temperature and
During less than second temperature setting value (t1 ＜ t ＜ t2), radiator FN and heater R do not work.
As shown in Figure 7, railway freight-car self-power supply device include two or more by gear unit 1, DC generation unit 2,
The module that energy-storage units 3, control unit 4 and voltage transformation module 5 form, often save on railway freight-car and be independently arranged module,
The gear unit 1 of each module is connected with the axletree 7 of this section railway freight-car.So so that the self-power supply device of each lorry is equal
To work independently, being independent of each other, consequently facilitating the fractionation of truck vehicle is with combining.
The invention described above specific embodiment description railway freight-car self-power supply device operation principle be：The energy source of device
In the axletree 7 of lorry, energy, the gear unit 1 when vehicle wheel rotation are transmitted by gear unit 1 between generator 21 and axletree 7
Generator 21 is driven to work, the AC energy that generator 21 is sent becomes dc source by rectifier 22, is filled to energy-storage units 3
Electricity, the output voltage of energy-storage units 3 pass through the conversion of voltage transformation module 5, finally supplied to the vehicle electronic device 8 of lorry again
Electricity.Meanwhile the output voltage Ud2 of energy-storage units 3 is a constant voltage, it is contemplated that voltage class needed for vehicle electronic device 8
Difference, therefore use voltage transformation module 5 that single DC voltage is transformed into the various direct currents needed for vehicle electronic device 8
Pressure.
A kind of specific embodiment of the railway freight-car confession method for electrically based on said apparatus, comprises the following steps：
S101：The mechanical energy for coming from axletree 7 is transferred to DC generation unit 2 by gear unit 1；
S102：The mechanical energy that gear unit 1 transmits is converted into AC energy by DC generation unit 2, and by AC energy
Exported after being converted to direct current energy to energy-storage units 3；
S103：Control unit 4 carries out charge control, energy storage according to the DC voltage that energy-storage units 3 export to energy-storage units 3
Unit 3 is charged under the control of control unit 4 and stops charging, and exports DC voltage to voltage transformation module 5；
S104：The DC voltage conversion that voltage transformation module 5 exports energy-storage units 3 is control unit 4 and lorry electronics
DC voltage needed for equipment 8.
When the generator 21 of DC generation unit 2 is using separate excitation asynchronous generator, DC generation unit 2 further comprises
Rectifier 22 and adjuster 24, step S102 further comprise procedure below：
Alternating current caused by generator 21 is rectified into direct current by rectifier 22 and exported to energy-storage units 3.Adjuster
24 DC voltages exported according to rectifier 22 adjust the exciting current of the magnet exciting coil 23 of generator 21, so that rectifier 22
The DC voltage of output keeps constant.
When the generator 21 of DC generation unit 2 is using magneto alternator, DC generation unit 2 further comprises
Controlled rectifier 25, step S102 further comprise procedure below：
Controlled rectifier 25 uses the pwm pulse rectification circuit based on turn-off device, is exported according to controlled rectifier 25
DC voltage regulation turn-off device gate pulse dutycycle so that controlled rectifier 25 export steady dc voltage.
Energy-storage units 3 further comprise first switch KM1 and battery Q, and step S103 further comprises procedure below：
When battery Q output voltage is less than first voltage setting value, control unit 4 controls the first switch KM1
Closure, DC generation unit 2 charge to battery Q.When battery Q output voltage reaches second voltage setting value, control
Unit 4 controls first switch KM1 to disconnect, so that battery Q stops charging.
Railway freight-car self-power supply device is further disposed in seal box, and radiator FN, heater are provided with seal box
R, temperature sensor Rt, second switch KM2 and the 3rd switch KM3, railway freight-car confession method for electrically further comprise temperature control process,
The process comprises the following steps：
Temperature sensor Rt detects the temperature in seal box and temperature signal is sent into control unit 4, control unit 4
Differentiated according to temperature signal.When the temperature in seal box is less than the first desired temperature, the switch of the control of control unit 4 the 3rd
KM3 is closed, and starts heater R.When the temperature in seal box is higher than second temperature setting value, the control of control unit 4 second is opened
KM2 closures are closed, start radiator FN.When the temperature in seal box is less than second temperature setting value higher than the first desired temperature
When, radiator FN and heater R do not work.
, can by implementing the railway freight-car self-power supply device of specific embodiment of the invention description and the technical scheme of method
Produce following technique effect：
(1) the railway freight-car self-power supply device of specific embodiment of the invention description and method rely on the machine of truck vehicle in itself
Tool can be converted into electric energy, and as the power supply of mobile unit, and part stores, and is used when being stopped for lorry, without being carried by outside
Power supply source；
(2) the railway freight-car self-power supply device of specific embodiment of the invention description is all using unit-modularized design, just
Use, safeguard and overhaul in follow-up；
(3) the railway freight-car self-power supply device of specific embodiment of the invention description and method and vibrating power-generation and air motor
Generation mode is compared, and device is more reliable and more stable, adaptive capacity to environment is stronger；
(4) temperature conditioning unit is carried inside the railway freight-car self-power supply device of specific embodiment of the invention description, can basis
Ambient temperature automatically adjusts, and starts heater when the temperature is too low, is radiated when temperature is too high；
(5) control unit built in the railway freight-car self-power supply device of specific embodiment of the invention description can be to energy-storage battery
Carry out discharge and recharge optimum management, it is ensured that the service life of battery is longer；
(6) self-power supply device of each lorry is in the railway freight-car self-power supply device of specific embodiment of the invention description
Work independently, be independent of each other, consequently facilitating the fractionation of truck vehicle is with combining.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention.Though
So the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence of the present invention and technical scheme, all using in the methods and techniques of the disclosure above
Appearance makes many possible changes and modifications to technical solution of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to made for any of the above embodiments any simple
Modification, equivalent substitution, equivalence changes and modification, still fall within the scope of technical solution of the present invention protection.
Claims (11)
- A kind of 1. railway freight-car self-power supply device, it is characterised in that including：Gear unit (1), DC generation unit (2), energy storage Unit (3), control unit (4) and voltage transformation module (5)；The mechanical energy for coming from axletree (7) is transferred to the DC generation unit (2) by the gear unit (1)；The mechanical energy that the gear unit (1) transmits is converted into AC energy by the DC generation unit (2), and by alternating current Exported after direct current energy can be converted to the energy-storage units (3)；The energy-storage units (3) are charged under the control of described control unit (4) and stop charging, and become to the voltage Change unit (5) output DC voltage；The DC voltage that described control unit (4) exports according to the energy-storage units (3), the energy-storage units (3) are filled Electric control；The DC voltage conversion that the voltage transformation module (5) exports the energy-storage units (3) be described control unit (4) and DC voltage needed for lorry electronic equipment (8)；The energy-storage units (3) further comprise first switch (KM1) and battery (Q), the first switch (KM1) with it is described Battery (Q) is connected, and the battery (Q) is connected in parallel on the input of the voltage transformation module (5)；The first switch (KM1) open/close status is controlled by described control unit (4) by detecting the output voltage of the battery (Q), works as institute When stating the output voltage of battery (Q) and being less than first voltage setting value, described control unit (4) controls the first switch (KM1) close, the DC generation unit (2) is charged to the battery (Q)；When the output voltage of the battery (Q) reaches During to second voltage setting value, described control unit (4) controls the first switch (KM1) to disconnect, so that the battery (Q) charging is stopped.
- 2. railway freight-car self-power supply device according to claim 1, it is characterised in that：The DC generation unit (2) is entered One step includes generator (21), rectifier (22) and adjuster (24), and the generator (21) uses separate excitation asynchronous generator；Institute Alternating current caused by generator (21) is stated to be rectified into direct current by the rectifier (22) and export to the energy-storage units (3)；The adjuster (24) is connected with the rectifier (22), and the magnet exciting coil (23) of the generator (21) respectively, The DC voltage that the adjuster (24) exports according to the rectifier (22) adjusts the exciting current of the magnet exciting coil (23), So that the DC voltage of rectifier (22) output keeps constant.
- 3. railway freight-car self-power supply device according to claim 1, it is characterised in that：The DC generation unit (2) is entered One step includes generator (21) and controlled rectifier (25), and the generator (21) uses magneto alternator；The generating Machine (21) is connected with the controlled rectifier (25), and the controlled rectifier (25) uses the pwm pulse based on turn-off device Rectification circuit, the dutycycle by adjusting the turn-off device gate pulse make the controlled rectifier (25) output stabilization DC voltage.
- 4. the railway freight-car self-power supply device according to Claims 2 or 3, it is characterised in that：The energy-storage units (3) are also wrapped Include the electric capacity (C) in parallel with the battery (Q).
- 5. railway freight-car self-power supply device according to claim 4, it is characterised in that：Described device also includes temperature conditioning unit (6), temperature conditioning unit (6) is connected with the DC generation unit (2), control unit (4) respectively；The DC generation unit (2) Working power is provided for the temperature conditioning unit (6), temperature signal is sent to described control unit (4) by the temperature conditioning unit (6), The temperature conditioning unit (6) is radiated after handling temperature signal for described control unit (4) or computer heating control.
- 6. railway freight-car self-power supply device according to claim 5, it is characterised in that：The temperature conditioning unit (6) includes dissipating Hot device (FN), heater (R), temperature sensor (Rt), second switch (KM2) and the 3rd switch (KM3)；The second switch (KM2) it is connected with the radiator (FN), the 3rd switch (KM3) is connected with the heater (R)；The railway freight-car is certainly Electric supply installation is arranged in seal box, and the temperature sensor (Rt) detects the temperature in the seal box and passes temperature signal Described control unit (4) is delivered to, described control unit (4) is differentiated according to temperature signal；Temperature in the seal box During less than the first desired temperature, described control unit (4) control the 3rd switch (KM3) closure, start the heater (R)；When the temperature in the seal box is higher than second temperature setting value, described control unit (4) controls the second switch (KM2) close, start the radiator (FN)；When the temperature in the seal box is higher than the first desired temperature and less than second During desired temperature, the radiator (FN) and the heater (R) do not work.
- 7. according to the railway freight-car self-power supply device described in claim 1,2,3,5 or 6 any one, it is characterised in that：The iron Afloat car self-power supply device includes two or more by the gear unit (1), DC generation unit (2), energy-storage units (3), control Unit (4) processed and the module of voltage transformation module (5) composition, often save on railway freight-car and have been independently arranged the module, each The gear unit (1) of module is connected with the axletree (7) of this section railway freight-car.
- 8. a kind of railway freight-car based on any one of claim 1 to 7 described device confesses method for electrically, it is characterised in that including Following steps：S101：The mechanical energy for coming from axletree (7) is transferred to DC generation unit (2) by gear unit (1)；S102：The mechanical energy that the gear unit (1) transmits is converted into AC energy by DC generation unit (2), and will exchange Electric energy is exported to energy-storage units (3) after being converted to direct current energy；S103：Control unit (4) carries out charging control according to the DC voltage that energy-storage units (3) export to the energy-storage units (3) System, energy-storage units (3) are charged under the control of described control unit (4) and stop charging, and to the voltage transformation list First (5) output DC voltage；S104：The DC voltage conversion that voltage transformation module (5) exports the energy-storage units (3) is described control unit (4) With the DC voltage needed for lorry electronic equipment (8).
- 9. railway freight-car according to claim 8 confesses method for electrically, it is characterised in that：When the DC generation unit (2) Generator (21) when using separate excitation asynchronous generator, the DC generation unit (2) further comprises rectifier (22) and adjusted Device (24) is saved, the step S102 further comprises procedure below：Alternating current caused by the generator (21) is rectified into direct current by the rectifier (22) and exported to the energy storage Unit (3)；The DC voltage that the adjuster (24) exports according to the rectifier (22) adjusts encouraging for generator (21) The exciting current of magnetic coil (23), so that the DC voltage of the rectifier (22) output keeps constant；When the generator (21) of the DC generation unit (2) uses magneto alternator, the DC generation unit (2) Further comprise controlled rectifier (25), the step S102 further comprises procedure below：The controlled rectifier (25) uses the pwm pulse rectification circuit based on turn-off device, according to the controlled rectifier (25) dutycycle of turn-off device gate pulse described in the DC voltage regulation of output so that the controlled rectifier (25) is defeated Go out steady dc voltage.
- 10. railway freight-car confession method for electrically according to claim 8 or claim 9, it is characterised in that the energy-storage units (3) are entered One step includes first switch (KM1) and battery (Q), and the step S103 further comprises procedure below：When the output voltage of the battery (Q) is less than first voltage setting value, described control unit (4) control described first (KM1) closure is switched, the DC generation unit (2) is charged to the battery (Q)；When the output electricity of the battery (Q) When pressure reaches second voltage setting value, described control unit (4) controls the first switch (KM1) to disconnect, so that the storage Battery (Q) stops charging.
- 11. railway freight-car according to claim 10 confesses method for electrically, it is characterised in that the railway freight-car confesses Denso Put and be further disposed in seal box, be provided with the seal box radiator (FN), heater (R), temperature sensor (Rt), Second switch (KM2) and the 3rd switch (KM3), methods described further comprise temperature control process, and the process comprises the following steps：The temperature sensor (Rt) detects the temperature in the seal box and temperature signal is sent into described control unit (4), described control unit (4) is differentiated according to temperature signal；When the temperature in the seal box is set less than the first temperature During value, described control unit (4) control the 3rd switch (KM3) closure, start the heater (R)；When the seal box When interior temperature is higher than second temperature setting value, described control unit (4) controls second switch (KM2) closure, starts institute State radiator (FN)；When the temperature in the seal box is less than second temperature setting value higher than the first desired temperature, institute State radiator (FN) and the heater (R) does not work.
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| CN201510653776.8A CN105346394B (en) | 2015-10-12 | 2015-10-12 | A kind of railway freight-car self-power supply device and method |
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| CN105346394B true CN105346394B (en) | 2017-12-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106864267B (en) * | 2017-03-10 | 2023-03-21 | 南昌工程学院 | Self-powered method for train |
| CN106849306B (en) * | 2017-03-10 | 2023-06-13 | 南昌工程学院 | Self-powered power supply for train |
| CN109720382B (en) * | 2019-01-07 | 2021-05-04 | 唐智科技湖南发展有限公司 | Vehicle rotating speed detection and power generation device |
| CN210082991U (en) * | 2019-04-15 | 2020-02-18 | 江苏广义牵引技术研究所有限公司 | Shaft end generator power generation, energy storage and power supply system |
| CN115473320A (en) * | 2022-08-19 | 2022-12-13 | 西安中车永电电气有限公司 | Hybrid power supply system for generating power by using wagon axle |
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