CN105346394A - Self-power-supply device and method for wagon - Google Patents
Self-power-supply device and method for wagon Download PDFInfo
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- CN105346394A CN105346394A CN201510653776.8A CN201510653776A CN105346394A CN 105346394 A CN105346394 A CN 105346394A CN 201510653776 A CN201510653776 A CN 201510653776A CN 105346394 A CN105346394 A CN 105346394A
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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 self-power-supply device and method for a wagon. The device comprises a transmission unit, a direct-current electricity generation unit, an energy storage unit, a control unit and a voltage conversion unit. The transmission unit transmits mechanical energy coming from an axle to the direct-current electricity generation unit. The direct-current electricity generation unit converts the mechanical energy transmitted by the transmission unit into alternating-current electric energy, converts the alternating-current electric energy into direct-current electric energy, and outputs the direct-current electric energy to the energy storage unit. The energy storage unit is controlled by the control unit to conduct charging or stop charging, and outputs direct-current voltage to the voltage conversion unit. The control unit conducts charging control on the energy storage unit according to the direct-current voltage output by the energy storage unit. The voltage conversion unit converts the direct-current voltage output by the energy storage unit into direct-current voltage required for the control unit and an electronic device of the wagon. The self-power-supply device is simple in structure, high in adaptability, good in electrical performance, high in reliability, convenient to maintain and capable of converting energy of the axle of the wagon into electric energy and storing the electric energy so that the power supply requirement of the vehicle-mounted electronic device can be met.
Description
Technical field
The present invention relates to rail vehicles electrical equipment, especially relate to a kind of self-power supply device and the method that are applied to goods train vehicle, for solving the power demands of the mobile unit such as electronic monitoring and protection needed for lorry automation, intellectuality.
Background technology
Railway is national important basic facility, and the main artery of national economy, the backbone of communications and transportation system, has the advantages such as freight volume is large, cost is low, energy-conserving and environment-protective.In recent years, along with the fast development of China's economy, railway transportation achieves the effect attracted people's attention.At passenger area; high speed railway and motor train unit obtain huge development leap; especially motor train unit; electric power system is had to make power supply owing to often saving compartment; the mobile unit such as electronic monitoring and protection automation, intelligent in be greatly improved; ensure that motor train unit run safe and reliable, improve the comfort level taken.And in shipping, " syntonic type " AC transmission electric power locomotive just progressively replaces " Shaoshan " serial DC drive electric locomotive, speed and the freight volume of freight train progressively promote.Due to freight train and passenger train at vehicle structure, use and safeguard that system exists bigger difference; conventional electric power system is not yet designed at present on railway truck; therefore the mobile unit such as electronic monitoring and protection cannot be installed, seriously constrain the raising of Heavy-Haul Railway and speed-up railway freight safe running performance.
Long-term operation experience shows, adopts the mobile unit such as electronic monitoring and protection, as electronic antiskid device, is the effective means improving railway truck safe in operation.Therefore, urgently invent and a kind ofly apply reliable and be convenient to the railway truck self-power supply device installed, for meeting the power demands of the mobile units such as electronic monitoring needed for lorry automation, intellectuality and protection.
At present, for above-mentioned technical matters, some scholars propose to adopt vibration generating device scheme to solve mobile unit powerup issue.Program principle is, when lorry runs, vehicle can produce multiple vibration, is electric energy for car-mounted electronic device is powered by Conversion of Energy vibration produced.This vibration generating device mainly comprises ball screw, planetary wheel, clutch bearing and electrical generator etc.But such device structure is very complicated, installation inconvenience, there is larger difficulty in Conversion of Energy, therefore more difficult realization in engineering.Also have scholar to propose to adopt air motor electricity generating plan, the program mainly comprises air motor and electrical generator, the gas-powered that air motor is discharged by car brakeing cylinder, relies on bearing transferring energy between electrical generator and motor.But this device only just can send electricity at train braking or when alleviating to be come, and its electric energy exported is very limited, and therefore practicality is not strong yet.
Summary of the invention
In view of this; the object of the present invention is to provide a kind of railway truck self-power supply device and method; structure is simple, compatible with environment is strong, good electric property, reliability are high, Maintenance and Repair are convenient; axletree energetic portions can be converted into electrical energy for storage, to meet the power demands of the mobile unit such as electronic monitoring and protection needed for lorry automation, intellectuality.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of railway truck self-power supply device, and railway truck self-power supply device, comprising: gear unit, DC generation unit, energy-storage units, control unit and voltage transformation module.
The mechanical energy coming from axletree is passed to described DC generation unit by described gear unit;
The changes mechanical energy that described gear unit transmits by described DC generation unit is AC energy, and exports described energy-storage units to after AC energy is converted to direct current energy;
Described energy-storage units carries out charging and stop charging under the control of described control unit, and to described voltage transformation module output dc voltage;
The vdc that described control unit exports according to described energy-storage units, carries out charging to described energy-storage units and controls;
The vdc of the DC voltage conversion that described energy-storage units exports by described voltage transformation module needed for described control unit and lorry electronic machine.
Preferably, described DC generation unit comprises electrical generator, rectifier and regulating control further, and described electrical generator adopts separate excitation asynchronous generator.The alternating current that described electrical generator produces becomes direct current (DC) by described rectifier rectification and exports described energy-storage units to.Described regulating control respectively with described rectifier, and the excitation coil of described electrical generator is connected, described regulating control adjusts the exciting current of described excitation coil according to the vdc that described rectifier exports, thus the vdc that described rectifier is exported keeps constant.
Preferably, described DC generation unit comprises electrical generator and controlled rectifier further, and described electrical generator adopts magneto alternator.Described electrical generator is connected with described controlled rectifier, and described controlled rectifier adopts the pwm pulse rectifying circuit based on turn-off device, by the vdc regulating the dutycycle of described turn-off device gate pulse to make described controlled rectifier stable output.
Preferably, described energy-storage units comprises the first switch and storage battery further, and described first switch is connected with described storage battery, and described storage battery is connected in parallel on the input end of described voltage transformation module.The open/close status of described first switch is controlled by the output voltage detecting described storage battery by described control unit, when the output voltage of described storage battery is lower than the first voltage setting value, described control unit controls described first switch and closes, and described DC generation unit is to described battery charge.When the output voltage of described storage battery reaches the second voltage setting value, described control unit controls described first switch and disconnects, thus makes described storage battery stop charging.
Preferably, described energy-storage units also comprises the electric capacity in parallel with described storage battery.
Preferably, described device also comprises temperature conditioning unit, and temperature conditioning unit is connected with described DC generation unit, control unit respectively.Described DC generation unit provides working power for described temperature conditioning unit, and temperature signal is sent to described control unit by described temperature conditioning unit, dispels the heat or computer heating control after described control unit processes temperature signal to described temperature conditioning unit.
Preferably, described temperature conditioning unit comprises radiator, temperature booster, temperature sensor, second switch and the 3rd switch.Described second switch is connected with described radiator, and described 3rd switch is connected with described temperature booster.Described railway truck self-power supply device is arranged in seal casing, and described temperature sensor detects the temperature in described seal casing and temperature signal is sent to described control unit, and described control unit differentiates according to temperature signal.When the temperature in described seal casing is lower than the first desired temperature, described control unit controls described 3rd switch and closes, and starts described temperature booster.When the temperature in described seal casing is higher than the second desired temperature, described control unit controls described second switch and closes, and starts described radiator.When the temperature in described seal casing higher than the first desired temperature lower than the second desired temperature time, described radiator and described temperature booster all do not work.
Preferably, described railway truck self-power supply device comprises the module that two or more is made up of described gear unit, DC generation unit, energy-storage units, control unit and voltage transformation module, often save on railway truck and be all independently provided with described module, the gear unit of each module is all connected with the axletree of this section railway truck.
The present invention also specifically provides a kind of technic relization scheme of the railway truck self-powered method based on above-mentioned railway truck self-power supply device realization in addition, and railway truck self-powered method, comprises the following steps:
S101: the mechanical energy coming from axletree is passed to DC generation unit by gear unit;
S102: the changes mechanical energy that described gear unit transmits by DC generation unit is AC energy, and exports energy-storage units to after AC energy is converted to direct current energy;
S103: control unit carries out charging according to the vdc that energy-storage units exports to described energy-storage units and controls, and energy-storage units carries out charging and stop charging under the control of described control unit, and to described voltage transformation module output dc voltage;
S104: the vdc of the DC voltage conversion that described energy-storage units exports by voltage transformation module needed for described control unit and lorry electronic machine.
Preferably, when the electrical generator employing separate excitation asynchronous generator of described DC generation unit, described DC generation unit comprises rectifier and regulating control further, and described step S102 comprises following process further:
The alternating current that described electrical generator produces becomes direct current (DC) by described rectifier rectification and exports described energy-storage units to.Described regulating control adjusts the exciting current of the excitation coil of described electrical generator according to the vdc that described rectifier exports, thus the vdc that described rectifier is exported keeps constant.
When the electrical generator employing magneto alternator of described DC generation unit, described DC generation unit comprises controlled rectifier further, and described step S102 comprises following process further:
Described controlled rectifier adopts the pwm pulse rectifying circuit based on turn-off device, according to the dutycycle of turn-off device gate pulse described in the DC voltage regulation that described controlled rectifier exports, makes the vdc of described controlled rectifier stable output.
Preferably, described energy-storage units comprises the first switch and storage battery further, and described step S103 comprises following process further:
When the output voltage of described storage battery is lower than the first voltage setting value, described control unit controls described first switch and closes, and described DC generation unit is to described battery charge.When the output voltage of described storage battery reaches the second voltage setting value, described control unit controls described first switch and disconnects, thus makes described storage battery stop charging.
Preferably, described railway truck self-power supply device is arranged in seal casing further, be provided with radiator, temperature booster, temperature sensor, second switch and the 3rd switch in described seal casing, described method comprises temperature control process further, and this process comprises the following steps:
Described temperature sensor detects the temperature in described seal casing and temperature signal is sent to described control unit, and described control unit differentiates according to temperature signal.When the temperature in described seal casing is lower than the first desired temperature, described control unit controls described 3rd switch and closes, and starts described temperature booster.When the temperature in described seal casing is higher than the second desired temperature, described control unit controls described second switch and closes, and starts described radiator.When the temperature in described seal casing higher than the first desired temperature lower than the second desired temperature time, described radiator and described temperature booster all do not work.
The railway truck self-power supply device provided by enforcement the invention described above and the technical scheme of method, have following beneficial effect:
(1) the present invention relies on the changes mechanical energy of truck vehicle itself to be electric energy, and as the power supply of mobile unit, and part stores, and uses, without the need to providing power supply by outside when stopping for lorry;
(2) the present invention all adopts unit-modularized design, is convenient to follow-up use, maintenance and maintenance;
(3) the present invention compares with air motor generation mode with vibrating power-generation, and device is more reliable and more stable, adaptive capacity to environment is stronger;
(4) the present invention is inner with temperature conditioning unit, can automatically adjust, start heating arrangement when the temperature is too low, dispel the heat when temperature is too high according to ambient temperature;
(5) control unit of the present invention can carry out discharge and recharge optimum management to energy-storage battery, guarantees the longer service life of battery;
(6) self-power supply device of each lorry of the present invention is and works alone, is independent of each other, thus is convenient to fractionation and the combination of truck vehicle.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Apparently, the accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other embodiment according to these accompanying drawings.
Fig. 1 is the structure composition frame chart of a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 2 is the circuit topological structure figure of separate excitation asynchronous motor DC generator unit in a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 3 is the circuit topological structure figure of synchronous dynamo DC generation unit in a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 4 is the schematic circuit diagram of energy-storage units and voltage transformation module in a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 5 is the schematic circuit diagram of temperature conditioning unit in a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 6 is the schematic circuit diagram of a kind of detailed description of the invention of railway truck self-power supply device of the present invention;
Fig. 7 is the arrangement structure relation schematic diagram of a kind of detailed description of the invention of railway truck self-power supply device of the present invention on many railway trucks;
In figure: 1-gear unit, 2-DC generation unit, 3-energy-storage units, 4-control unit, 5-voltage transformation module, 6-temperature conditioning unit, 7-axletree, 8-lorry electronic machine, 21-electrical generator, 22-rectifier, 23-excitation coil, 24-regulating control, 25-controlled rectifier.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in accompanying drawing 1 to accompanying drawing 7, give the specific embodiment of railway truck self-power supply device of the present invention and method, below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in accompanying drawing 1 and accompanying drawing 6, a kind of specific embodiment of railway truck self-power supply device, comprising: 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, the mechanical energy of the axletree 7 coming from lorry is passed to the electrical generator 21 of DC generation unit 2, and drive electrical generators 21 works and produces required electric energy; Gear unit 1 should have the mechanical specialitiess such as good intensity, antidetonation, needs to consider the optimum matching between the rotating speed of axletree 7 and the rotating speed of electrical generator 21 simultaneously;
The changes mechanical energy that gear unit 1 transmits by DC generation unit 2 is AC energy (voltage) Us, and exports energy-storage units 3 to after AC energy (voltage) being converted to direct current energy (power supply) Ud1 by power electronic equipment;
Energy-storage units 3 carries out charging and stop charging under the control of control unit 5, and to voltage transformation module 5 output dc voltage;
The vdc that control unit 4 exports according to energy-storage units 3, carries out charging to energy-storage units 3 and controls;
The vdc of the DC voltage conversion that energy-storage units 3 exports by voltage transformation module 5 needed for control unit 4 and lorry electronic machine 8.
As one of the present invention preferably specific embodiment, railway truck self-power supply device also comprises temperature conditioning unit 6 further, and temperature conditioning unit 6 is connected with DC generation unit 2, control unit 4 respectively.DC generation unit 2 provides working power for temperature conditioning unit 6, and temperature signal is sent to control unit 4 by temperature conditioning unit 6, dispels the heat or computer heating control after control unit 4 pairs of temperature signals process to temperature conditioning unit 6.
As shown in Figure 2, DC generation unit 2 is energy sources of lorry mobile unit (i.e. lorry electronic machine 8), charges to energy-storage units 3 when normal work.When electrical generator 21 adopts separate excitation asynchronous generator, DC generation unit 2 comprises electrical generator 21, rectifier 22 and regulating control 24 further.The alternating current Us that electrical generator 21 produces is rectified into direct current (DC) Ud1 by rectifier 22 and exports energy-storage units 3 to.Because energy-storage units 3 has electric capacity effect, therefore the vdc exported is more steady.Regulating control 24 respectively with rectifier 22, and the excitation coil 23 of electrical generator 21 is connected, the exciting current i of the vdc adjustment excitation coil 23 that regulating control 24 exports according to rectifier 22, thus the vdc that rectifier 22 is exported maintenance is constant.Rectifier 22 is three phase bridge rectifier structure, can adopt the power electronic devices such as diode, and its output voltage Ud1 is supplied to energy-storage units 3.The power grade of the devices such as electrical generator 21, rectifier 22 must meet the power consumption demand of the mobile units (lorry electronic machine 8) such as all electronic monitorings of lorry itself and protection.
The speed run due to lorry is change, and the rotating speed of axletree 7 also changes thereupon, and rotating speed when therefore electrical generator 21 works also is change.The output voltage Us of electrical generator 21 is directly proportional to the rotating speed n of electrical generator 21, and physical relationship formula is: Us=n* φ * C (wherein, φ is the magnetic flux of excitation coil 23, C is the structural constant of electrical generator 21).In order to keep the output voltage stabilization of electrical generator 21, electrical generator 21 must, with control setup (i.e. regulating control 24), by regulating the current i of excitation coil 21, make the output voltage of electrical generator 21 keep constant.This regulating control 24 can adopt the versions such as contact voltage regulator, transistor type voltage regulator and integrated circuit voltage regulator.Wherein, contact voltage regulator is a kind of mechanical-vibration type voltage regulator, and it utilizes the switching function of contact, changes the resistance of field circuit, keeps the constant of voltage.Solid-state regulator is the on-off action utilizing crystal triode, and the switching controlling generator field circuit regulates the power in magnetic field, and voltage is remained unchanged.Integrated circuit voltage regulator utilizes the dutycycle changing field current, changes the output voltage of electrical generator, make output voltage constant.
As shown in Figure 3, when electrical generator 21 adopts magneto alternator, DC generation unit 2 comprises electrical generator 21 and controlled rectifier 25 further.Because the output voltage Us of permagnetic synchronous motor changes with the rotating speed of electrical generator 21, for making the vdc of output keep constant, therefore need to adopt controlled rectifier 25.Electrical generator 21 is connected with controlled rectifier 25, and controlled rectifier 25 adopts the pwm pulse rectifying circuit based on turn-off device.Now, need a control setup, according to the dutycycle of the vdc Ud1 adjustment turn-off device gate pulse that controlled rectifier 25 exports, make the vdc Ud1 of controlled rectifier 25 stable output, realize Voltage Stability Control.
As shown in Figure 4, energy-storage units 3 comprises the first K switch M1 and storage battery Q further, the form that storage battery Q is in parallel with the input end of voltage transformation module 5 again after multiple storage battery (Q1 ~ Qn) can be adopted to connect.First K switch M1 is connected with storage battery Q, and storage battery Q is connected in parallel on the input end of voltage transformation module 5.The open/close status of the first K switch M1 is controlled by the output voltage detecting storage battery Q by control unit 4, when the output voltage Ud2 of storage battery Q is lower than the first voltage setting value, control unit 4 controls the first K switch M1 and closes, and DC generation unit 2 charges to storage battery Q.When the output voltage Ud2 of storage battery Q reaches the second voltage setting value (being full of voltage), control unit 4 controls the first K switch M1 and disconnects, thus makes storage battery Q stop charging.By controlling the open/close of the first K switch M1, making energy-storage units 3 repeat discharge and recharge, thus improve the service life of energy-storage units 3.Energy-storage units 3 can also comprise the electric capacity C in parallel with storage battery Q, the form that electric capacity C is in parallel with storage battery Q again after multiple electric capacity (C1 ~ Cn) also can be adopted to connect.Wherein, storage battery Q and cond C both can adopt separately, also can both be combined.Voltage transformation module 5 adopts DC/DC translation circuit further, the vdc Ud2 that energy-storage units 3 exports by voltage transformation module 5 is transformed to vdc Ud3, Ud4 etc. needed for the vehicle electronic device 8 of lorry, and the vdc Ud5 needed for control unit 4.
As shown in Figure 5, temperature conditioning unit 6 comprises radiator FN, temperature booster R, temperature sensor Rt, second switch KM2 and the 3rd K switch M3.Second switch KM2 is connected with radiator FN, and the 3rd K switch M3 is connected with temperature booster R.Consider that the running environment of lorry is complicated; need to adapt to extreme temperature (as subzero 50 DEG C, thaw time 110 DEG C) and severe environmental conditions; therefore railway truck self-power supply device is arranged in the seal casing of high-protection level by the specific embodiment of the invention, protects the key equipment of railway truck self-power supply device.As being shown in accompanying drawing 5 chain lines frame the power electronic element comparatively responsive to temperature, seal casing according to the change of divergence of external temperature and self-temperature, can realize the functions such as heating, heat extraction, whole device is adapted to and rugged environment temperature.Temperature sensor Rt detects the temperature in seal casing and temperature signal is sent to control unit 4, and control unit 4 differentiates according to temperature signal.When the temperature in seal casing is lower than the first desired temperature t1, control unit 4 controls the 3rd K switch M3 and closes, and starts temperature booster R.When the temperature in seal casing is higher than the second desired temperature t2, control unit 4 controls second switch KM2 and closes, and starts radiator FN.When the temperature in seal casing higher than the first desired temperature lower than the second desired temperature (t1 < t < t2) time, radiator FN and temperature booster R does not all work.
As shown in Figure 7, railway truck self-power supply device comprises the module that two or more is made up of gear unit 1, DC generation unit 2, energy-storage units 3, control unit 4 and voltage transformation module 5, often save on railway truck and be all independently provided with module, the gear unit 1 of each module is all connected with the axletree 7 of this section railway truck.Make the self-power supply device of each lorry be like this to work alone, be independent of each other, thus be convenient to fractionation and the combination of truck vehicle.
The railway truck self-power supply device principle of work that the invention described above specific embodiment describes is: the energy source of device is in the axletree 7 of lorry, by gear unit 1 transferring energy between electrical generator 21 and axletree 7, when vehicle wheel rotation, gear unit 1 drive electrical generators 21 works, the AC energy that electrical generator 21 sends becomes direct supply by rectifier 22, charge to energy-storage units 3, the output voltage of energy-storage units 3 is again through the conversion of voltage transformation module 5, and the vehicle electronic device 8 eventually to lorry is powered.Meanwhile, the output voltage Ud2 of energy-storage units 3 is a constant potential, considers the difference of vehicle electronic device 8 required voltage grade, and therefore single vdc is transformed into the various vdcs needed for vehicle electronic device 8 by employing voltage transformation module 5.
Based on a specific embodiment for the railway truck self-powered method of said apparatus, comprise the following steps:
S101: the mechanical energy coming from axletree 7 is passed to DC generation unit 2 by gear unit 1;
S102: the changes mechanical energy that gear unit 1 transmits by DC generation unit 2 is AC energy, and exports energy-storage units 3 to after AC energy is converted to direct current energy;
S103: control unit 4 carries out charging according to the vdc that energy-storage units 3 exports to energy-storage units 3 and controls, and energy-storage units 3 carries out charging and stop charging under the control of control unit 5, and to voltage transformation module 5 output dc voltage;
S104: the vdc of the DC voltage conversion that energy-storage units 3 exports by voltage transformation module 5 needed for control unit 4 and lorry electronic machine 8.
When the electrical generator 21 of DC generation unit 2 adopts separate excitation asynchronous generator, DC generation unit 2 comprises rectifier 22 further and regulating control 24, step S102 comprises following process further:
The alternating current that electrical generator 21 produces is rectified into direct current (DC) by rectifier 22 and exports energy-storage units 3 to.The exciting current of the excitation coil 23 of the vdc adjustment electrical generator 21 that regulating control 24 exports according to rectifier 22, thus the vdc that rectifier 22 is exported keeps constant.
When the electrical generator 21 of DC generation unit 2 adopts magneto alternator, DC generation unit 2 comprises controlled rectifier 25 further, and step S102 comprises following process further:
Controlled rectifier 25 adopts the pwm pulse rectifying circuit based on turn-off device, according to the dutycycle of the DC voltage regulation turn-off device gate pulse that controlled rectifier 25 exports, makes the vdc of controlled rectifier 25 stable output.
Energy-storage units 3 comprises the first K switch M1 further and storage battery Q, step S103 comprise following process further:
When the output voltage of storage battery Q is lower than the first voltage setting value, control unit 4 controls described first K switch M1 and closes, and DC generation unit 2 charges to storage battery Q.When the output voltage of storage battery Q reaches the second voltage setting value, control unit 4 controls the first K switch M1 and disconnects, thus makes storage battery Q stop charging.
Railway truck self-power supply device is arranged in seal casing further, radiator FN, temperature booster R, temperature sensor Rt, second switch KM2 and the 3rd K switch M3 is provided with in seal casing, railway truck self-powered method comprises temperature control process further, and this process comprises the following steps:
Temperature sensor Rt detects the temperature in seal casing and temperature signal is sent to control unit 4, and control unit 4 differentiates according to temperature signal.When the temperature in seal casing is lower than the first desired temperature, control unit 4 controls the 3rd K switch M3 and closes, and starts temperature booster R.When the temperature in seal casing is higher than the second desired temperature, control unit 4 controls second switch KM2 and closes, and starts radiator FN.When the temperature in seal casing higher than the first desired temperature lower than the second desired temperature time, radiator FN and temperature booster R does not all work.
The railway truck self-power supply device described by the enforcement specific embodiment of the invention and the technical scheme of method, can produce following technique effect:
(1) the railway truck self-power supply device of specific embodiment of the invention description and the changes mechanical energy of method dependence truck vehicle itself are electric energy, and as the power supply of mobile unit, and part stores, and uses, without the need to providing power supply by outside when stopping for lorry;
(2) the railway truck self-power supply device that the specific embodiment of the invention describes all adopts unit-modularized design, is convenient to follow-up use, maintenance and maintenance;
(3) specific embodiment of the invention describe railway truck self-power supply device and method compare with air motor generation mode with vibrating power-generation, device is more reliable and more stable, adaptive capacity to environment is stronger;
(4) the railway truck self-power supply device of specific embodiment of the invention description is inner with temperature conditioning unit, can automatically adjust, start heating arrangement when the temperature is too low, dispel the heat when temperature is too high according to ambient temperature;
(5) control unit that the railway truck self-power supply device of specific embodiment of the invention description is built-in can carry out discharge and recharge optimum management to energy-storage battery, guarantees the longer service life of battery;
(6) in the railway truck self-power supply device that describes of the specific embodiment of the invention, the self-power supply device of each lorry is and works alone, is independent of each other, thus is convenient to fractionation and the combination of truck vehicle.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from Spirit Essence of the present invention and technical scheme, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs to the scope of technical solution of the present invention protection.
Claims (10)
1. a railway truck self-power supply device, it is characterized in that, comprising: gear unit (1), DC generation unit (2), energy-storage units (3), control unit (4) and voltage transformation module (5);
The mechanical energy coming from axletree (7) is passed to described DC generation unit (2) by described gear unit (1);
The changes mechanical energy that described gear unit (1) transmits is AC energy by described DC generation unit (2), and exports described energy-storage units (3) after AC energy is converted to direct current energy to;
Described energy-storage units (3) carries out charging and stop charging under the control of described control unit (5), and to described voltage transformation module (5) output dc voltage;
The vdc that described control unit (4) exports according to described energy-storage units (3), carries out charging to described energy-storage units (3) and controls;
The vdc of the DC voltage conversion that described energy-storage units (3) exports by described voltage transformation module (5) needed for described control unit (4) and lorry electronic machine (8).
2. railway truck self-power supply device according to claim 1, it is characterized in that: described DC generation unit (2) comprises electrical generator (21), rectifier (22) and regulating control (24) further, described electrical generator (21) adopts separate excitation asynchronous generator; The alternating current that described electrical generator (21) produces is rectified into direct current (DC) by described rectifier (22) and exports described energy-storage units (3) to; Described regulating control (24) respectively with described rectifier (22), and the excitation coil (23) of described electrical generator (21) is connected, described regulating control (24) adjusts the exciting current of described excitation coil (23) according to the vdc that described rectifier (22) exports, thus the vdc that described rectifier (22) is exported keeps constant.
3. railway truck self-power supply device according to claim 1, it is characterized in that: described DC generation unit (2) comprises electrical generator (21) and controlled rectifier (25) further, described electrical generator (21) adopts magneto alternator; Described electrical generator (21) is connected with described controlled rectifier (25), described controlled rectifier (25) adopts the pwm pulse rectifying circuit based on turn-off device, by the vdc regulating the dutycycle of described turn-off device gate pulse to make described controlled rectifier (25) stable output.
4. the railway truck self-power supply device according to Claims 2 or 3, it is characterized in that: described energy-storage units (3) comprises the first switch (KM1) and storage battery (Q) further, described first switch (KM1) is connected with described storage battery (Q), and described storage battery (Q) is connected in parallel on the input end of described voltage transformation module (5); The open/close status of described first switch (KM1) is controlled by the output voltage detecting described storage battery (Q) by described control unit (4), when the output voltage of described storage battery (Q) is lower than the first voltage setting value, described control unit (4) controls described first switch (KM1) closing, and described DC generation unit (2) is charged to described storage battery (Q); When the output voltage of described storage battery (Q) reaches the second voltage setting value, described control unit (4) controls the disconnection of described first switch (KM1), thus makes described storage battery (Q) stop charging; Preferably, described energy-storage units (3) also comprises the electric capacity (C) in parallel with described storage battery (Q).
5. railway truck self-power supply device according to claim 4, it is characterized in that: described device also comprises temperature conditioning unit (6), temperature conditioning unit (6) is connected with described DC generation unit (2), control unit (4) respectively; Described DC generation unit (2) provides working power for described temperature conditioning unit (6), temperature signal is sent to described control unit (4) by described temperature conditioning unit (6), dispels the heat or computer heating control after described control unit (4) processes temperature signal to described temperature conditioning unit (6).
6. railway truck self-power supply device according to claim 5, is characterized in that: described temperature conditioning unit (6) comprises radiator (FN), temperature booster (R), temperature sensor (Rt), second switch (KM2) and the 3rd switch (KM3); Described second switch (KM2) is connected with described radiator (FN), and described 3rd switch (KM3) is connected with described temperature booster (R); Described railway truck self-power supply device is arranged in seal casing, described temperature sensor (Rt) detects the temperature in described seal casing and temperature signal is sent to described control unit (4), and described control unit (4) differentiates according to temperature signal; When the temperature in described seal casing is lower than the first desired temperature, described control unit (4) controls described 3rd switch (KM3) and closes, and starts described temperature booster (R); When the temperature in described seal casing is higher than the second desired temperature, described control unit (4) controls described second switch (KM2) and closes, and starts described radiator (FN); When the temperature in described seal casing higher than the first desired temperature lower than the second desired temperature time, described radiator (FN) and described temperature booster (R) all do not work.
7. the railway truck self-power supply device according to any one of claim 1,2,3,5 or 6, it is characterized in that: described railway truck self-power supply device comprises the module that two or more is made up of described gear unit (1), DC generation unit (2), energy-storage units (3), control unit (4) and voltage transformation module (5), often save on railway truck and be all independently provided with described module, the gear unit (1) of each module is all connected with the axletree (7) of this section railway truck.
8., based on a railway truck self-powered method for device according to any one of claim 1 to 7, it is characterized in that, comprise the following steps:
S101: the mechanical energy coming from axletree (7) is passed to DC generation unit (2) by gear unit (1);
S102: the changes mechanical energy that described gear unit (1) transmits is AC energy by DC generation unit (2), and after AC energy is converted to direct current energy, export energy-storage units (3) to;
S103: control unit (4) carries out charging according to the vdc that energy-storage units (3) exports to described energy-storage units (3) and controls, energy-storage units (3) carries out charging and stop charging under the control of described control unit (5), and to described voltage transformation module (5) output dc voltage;
S104: the vdc of the DC voltage conversion that described energy-storage units (3) exports by voltage transformation module (5) needed for described control unit (4) and lorry electronic machine (8).
9. railway truck self-powered method according to claim 8, it is characterized in that: when electrical generator (21) the employing separate excitation asynchronous generator of described DC generation unit (2), described DC generation unit (2) comprises rectifier (22) and regulating control (24) further, and described step S102 comprises following process further:
The alternating current that described electrical generator (21) produces is rectified into direct current (DC) by described rectifier (22) and exports described energy-storage units (3) to; Described regulating control (24) adjusts the exciting current of the excitation coil (23) of described electrical generator (21) according to the vdc that described rectifier (22) exports, thus the vdc that described rectifier (22) is exported keeps constant;
When electrical generator (21) the employing magneto alternator of described DC generation unit (2), described DC generation unit (2) comprises controlled rectifier (25) further, and described step S102 comprises following process further:
Described controlled rectifier (25) adopts the pwm pulse rectifying circuit based on turn-off device, according to the dutycycle of turn-off device gate pulse described in the DC voltage regulation that described controlled rectifier (25) exports, make the vdc of described controlled rectifier (25) stable output.
10. railway truck self-powered method according to claim 8 or claim 9, it is characterized in that, described energy-storage units (3) comprises the first switch (KM1) and storage battery (Q) further, and described step S103 comprises following process further:
When the output voltage of described storage battery (Q) is lower than the first voltage setting value, described control unit (4) controls described first switch (KM1) closing, and described DC generation unit (2) is charged to described storage battery (Q); When the output voltage of described storage battery (Q) reaches the second voltage setting value, described control unit (4) controls the disconnection of described first switch (KM1), thus makes described storage battery (Q) stop charging;
Preferably, described railway truck self-power supply device is arranged in seal casing further, radiator (FN), temperature booster (R), temperature sensor (Rt), second switch (KM2) and the 3rd switch (KM3) is provided with in described seal casing, described method comprises temperature control process further, and this process comprises the following steps:
Described temperature sensor (Rt) detects the temperature in described seal casing and temperature signal is sent to described control unit (4), and described control unit (4) differentiates according to temperature signal; When the temperature in described seal casing is lower than the first desired temperature, described control unit (4) controls described 3rd switch (KM3) and closes, and starts described temperature booster (R); When the temperature in described seal casing is higher than the second desired temperature, described control unit (4) controls described second switch (KM2) and closes, and starts described radiator (FN); When the temperature in described seal casing higher than the first desired temperature lower than the second desired temperature time, described radiator (FN) and described temperature booster (R) all do not work.
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