CN208971430U - The discontinuous operation electric traction system of extended-range high-power low-speed - Google Patents
The discontinuous operation electric traction system of extended-range high-power low-speed Download PDFInfo
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Abstract
This application discloses a kind of discontinuous operation electric traction systems of extended-range high-power low-speed.The system includes: battery pack；First DC to DC converter is connect with the battery pack, carries out transformation and pressure stabilizing for the voltage to the battery pack；Inverter is connect with first DC to DC converter；Electric machine controller is connect with the inverter, for controlling the operating status of motor；Motor is connect with the electric machine controller；Transmission system is connect with the motor；And charging unit, it is connect respectively with the inverter and the battery pack, for described battery-powered.The system uses charging unit, it can satisfy the requirement of the discontinuous operating status of high-power low-speed, the mode that the system is cooperated using battery pack and charging unit, continuously stable power supply can either be provided for system, realize the long range power supply of fuel supply, and the demand to power grid instantaneous power is reduced, to improve safety.
Description
Technical field
This application involves electric propulsion fields, lead more particularly to a kind of discontinuous operation of extended-range high-power low-speed is electronic
Draw system.
Background technique
In modern society, electric energy is one of most important energy of modern society.The commonly used and motor of electric power
Development, provides propellant for mankind's process of industrialization.
Electric propulsion is a kind of traction power form using electric energy as power drive motor running, is current three kinds of tractions
One of power form (steam engine, internal combustion engine, electric power).In the field of conventional traction power demand, steam engine, internal combustion engine and electric power
Suffer from very extensive application.
In terms of high-power electric traction, the overwhelming majority is used for electric locomotive both at home and abroad at present, uses, adopts in railway line
Power is done with uninterrupted stringing formula electric supply, has the characteristics that speed is high, course continuation mileage is remote, load is big, continuous operation.Mesh
Before, railways power locomotive technology is very mature.However, for high-power, low speed, discontinuous operation work condition environment under,
Traction generator is a blank.
The electric propulsion mode of power grid power supply, the angle from pure traction be it is the simplest, the investment of initial stage relevant device is low,
It is easy to use.But electric propulsion mode the drawbacks of there is also highly significants of power grid power supply.It is the throwing for increasing stringing first
Enter, especially traction requirements far from the case where high-voltage fence, the construction of power grid needs very big investment, builds high-voltage fence and relates to
And corresponding entries it is cumbersome.Secondly, there is Electrical Safety risk in some cases, such as the environment division or complete for needing to draw
Portion is immersed in water.Finally, discrete, MW class power termination is a stern challenge to the stability of power grid.In short,
Power grid power supply has that flexibility is poor, security risk height and grid stability are affected etc. and to be difficult to overcome.
Utility model content
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
According to the one aspect of the application, a kind of discontinuous operation electric traction system of extended-range high-power low-speed is provided
System, the system include:
Battery pack, for storing electric energy；
Charging unit is connect with the battery pack, for described battery-powered；
First DC to DC converter is connect with the charging unit, is converted for the voltage to the battery pack
And pressure stabilizing；
Inverter is connect, for DC voltage to be changed into alternating voltage with first DC to DC converter；
Electric machine controller is connect with the inverter, for controlling the operating status of motor；
Motor is connect with the electric machine controller；
Transmission system is connect with the motor, for controlling the operating status of load under the drive of the motor.
The system uses charging unit, can satisfy the requirement of the discontinuous operating status of high-power low-speed, the system is not straight
The mode for connecing using fuel power generation function traction mode and electric propulsion mode, but battery pack and charging unit being used to cooperate, can
It is enough that continuously stable power supply is provided, also electric power supply can be carried out by power supply of other power supply units to this system, so as to
It realizes and powers over long distances, fuel power generation function traction device need not be built up in the arrangement adjacent, to reduce noise and pollution；Together
When, it directly powers compared to power grid, reduces the demand to instantaneous power, also avoid electric propulsion device and directly answered with system
Environment, for example, water phase contacts, to improve safety.
Optionally, the charging unit includes commercial power charged device and/or fuel charge device.
Optionally, the commercial power charged device includes:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；
Charger is connect with the power distribution equipment and electricity network, is charged for supplying electricity to the battery pack using city.
The system of the application is used as electric propulsion using power grid power supply, at low cost, noise is small, environmentally friendly, environment adapts to
Property it is strong, energy conversion and utilization efficiency is high the advantages that.When being charged using power grid to the system battery group, charge power is lower, because
And to power grid without impact.It can be charged with distance increasing unit to battery pack when using daytime, it can also be with the paddy electricity in evening to battery pack
Charging, such efficiency of energy utilization are higher.
Optionally, the commercial power charged device further include:
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the city by the charger
The electric energy of electricity；
Central control unit is connect with the booster battery, for controlling second DC to DC converter, institute
State the operation of the first DC to DC converter, the battery pack, the electric machine controller and the transmission system.
This system can provide electric energy, when preventing electric power deficiency, instrument and meter to subsequent device using booster battery
Equal devices cannot be indicated normally, to influence judgement of the staff to system operation situation；It can using central control unit
To multiple devices carry out centralized control so that each device stable coordination run.
Optionally, the power distribution equipment includes main branch and sub-branch, wherein the main branch is used to supply to the motor
Electricity, the sub-branch are used to power by the booster battery to instrument and meter.
Optionally, the fuel charge device includes:
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit, for controlling the operating status of the distance increasing unit；
Power distribution equipment connects with the distance increasing unit controller, the battery pack and first DC to DC converter respectively
It connects, the energy for providing the distance increasing unit is transmitted to the battery pack.
The system of the application uses distance increasing unit and distance increasing unit controller, relative to traditional large combustion engines (diesel engine or
Gas turbine) power or power grid power supply traction generator, have at low cost, noise is small, environmentally friendly, environmental suitability is strong,
The advantages that energy conversion and high utilization efficiency.
Optionally, the distance increasing unit is fuel-cell device or thermo-mechanical power generation device.
Optionally, the distance increasing unit includes:
Fuel storage, for storing fuel；
Generator is connect with the fuel storage, for being generated electricity using the fuel.
Optionally, the charging unit includes:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；
Charger is connect with the power distribution equipment and electricity network respectively, is charged for supplying electricity to the battery pack using city；
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the city by the charger
The electric energy of electricity；
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit and the power distribution equipment respectively, for controlling the distance increasing unit
Operating status；
Central control unit is connect with the booster battery, for controlling second DC to DC converter, institute
State the first DC to DC converter, the battery pack, the electric machine controller, the distance increasing unit controller and the power train
The operation of system.
The system of the application uses fuel and power grid two ways that it is mutual to can be realized various modes to be battery-powered
Supplement, so that the stable operation for system provides multi-ensuring.
Optionally, first DC to DC converter is reversible transducer, described for being given by Brake energy recovery
Battery pack charging.
The application uses the load of energy regenerating control mode expanded motor, and is set according to transmission system and different loads
Fixed, part kinetic energy when by load-retarding is output to battery pack, for using when other states；Motor is driven immediately by this
Originally the braking kinetic energy wasted is able to part effective use by mode.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic diagram according to the electric traction system of the application one embodiment；
Fig. 2 is the schematic diagram according to the electric traction system of the application another embodiment；
Fig. 3 is the schematic diagram according to the electric traction system of the application another embodiment；
Fig. 4 is the schematic diagram according to the electric traction system of the application another embodiment.
Specific embodiment
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.Obviously, described embodiment is that a part of the application is real
Example is applied, instead of all the embodiments.
Therefore, the model of claimed the application is not intended to limit to the detailed description of embodiments herein below
It encloses, but is merely representative of the unit embodiment of the application.Based on the embodiment in the application, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall in the protection scope of this application.It needs to illustrate
, in the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.
For the ease of understanding the utility model, first to some in electric traction system field and related application field
Term is simply described below:
The translator of Chinese of " distance increasing unit " English Range-extender.Under Chinese, electric car context, refer in particular to increase
It is powered on the fuel electric generator of electrical automobile course continuation mileage.When the fuel electric generator is run, charge to the battery pack of electric car.
" artificial surfing pond " refers to a pond, has made wave in pond, fan is engaged in surfing for surfing
Sports.It is about 100-200 meters of occupied area wide, 500-800 meters long according to the artificial surfing pond project built in the world.
The power about 1-20MW of wave apparatus is drawn, speed is 1-10 metre per second (m/s).
" discontinuous operation " refers to that motor not transport at rated loads by long-time stable according to the duty of usual motor operation
Row includes (but being not limited to) short time duty, intermittent periodic duty etc..
After " battery over-discharge " refers to battery regular picture to blanking voltage, continue to discharge.Battery over-discharge has the service life of battery
Evil.
Embodiment one
The embodiment of the application provides a kind of discontinuous operation electric traction system of extended-range high-power low-speed.
Fig. 1 is the schematic diagram according to the electric traction system of the application one embodiment.The system may include:
Battery pack, for storing electric energy；
Charging unit is connect with the battery pack, for described battery-powered；
First DC/DC (DC/DC) converter, connect, for the voltage to the battery pack with the charging unit
Carry out transformation and pressure stabilizing；
Inverter is connect, for DC voltage to be changed into alternating voltage with first DC to DC converter；
Electric machine controller is connect with the inverter, for controlling the operating status of motor；
Motor is connect with the electric machine controller；
Transmission system is connect with the motor, for controlling the operating status of load under the drive of the motor.
The system uses charging unit, can satisfy the requirement of the discontinuous operating status of high-power low-speed, the system is not straight
The mode for connecing using fuel power generation function traction mode and electric propulsion mode, but battery pack and charging unit being used to cooperate, can
It is enough that continuously stable power supply is provided, also electric power supply can be carried out by power supply of other power supply units to this system, so as to
It realizes and powers over long distances, fuel power generation function traction device need not be built up in the arrangement adjacent, to reduce noise and pollution；Together
When, it directly powers compared to power grid, reduces the demand to instantaneous power, also avoid electric propulsion device and directly answered with system
Environment, for example, water is wanted to contact, to improve safety.
System main feature provided by the utility model has: system motor is run under discontinuous operation standard, draws function
Rate is greater than 1MW；Hauling speed range is big, can reach 0.2 metre per second (m/s) between 30 metre per second (m/s)s；Internal system energy supply is to increase
Formula power driven system, and include the recovery system of electric energy storage braking energy, to reach at low cost, energy-saving and environmental protection, environment adaptation
Property the strong and working efficiency and high purpose of efficiency of energy utilization.
Optionally, motor can be motor or bill machine, wherein motor is reversible electric machine or irreversible motor, electricity
Machine driving method is single motor driving, Dual-motors Driving or multi-motor driving.
Optionally, the battery pack is sodium-sulphur battery, vanadium cell, lithium battery, lead-acid battery or super capacitor.
In this application, include three kinds to the battery pack charging modes of system: being charged by power grid to battery pack, pass through increasing
Journey device charges to battery pack and is charged by Brake energy recovery to battery pack.
Battery pack has battery management system (BATTERY MANAGEMENT SYSTEM, the BMS) battery management system
The utilization rate that can be improved battery pack prevents battery pack from occurring overcharging and over-discharge.According to BMS and center control system
System, in the case where system configuration distance increasing unit, battery pack can effectively avoid over-discharge phenomenon, to improve the use longevity of battery pack
Life.
Optionally, the charging unit includes commercial power charged device and/or fuel charge device.
For the charging modes of battery pack, the mode that can be both charged by commercial power can also use the system of the application
The mode of fuel charge can also have simultaneously there are two types of charging unit, while use alternating current and fuel charge, and the two is mended each other
It fills, ensure that the continuity of this system power supply.
Embodiment two
Embodiments further provide a kind of discontinuous operation electric traction systems of extended-range high-power low-speed by one of the application
System.The system includes at least each building block of system in embodiment one, and the mode that can be charged by commercial power.Fig. 2
It is the schematic diagram according to the electric traction system of the application another embodiment.In the figure, long dotted line indicates alternating current
Charging unit, short dash line indicate that the control planning of signal, solid line indicate the connection relationship between component.Wherein, the alternating current fills
Electric installation may include:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；
Charger is connect with the power distribution equipment and electricity network, is charged for supplying electricity to the battery pack using city.
Wherein charger is connect by socket and bolt with electricity network, electrical energy can be obtained from power grid, in turn
To battery-powered, electric pollution not will cause due to using clear energy sources, meanwhile, it is capable to which the electric power of power grid is deposited
Storage alleviates the power pressure of power grid so that power grid can not have to provide king-sized power.
Use the system of the application using power grid power supply as electric propulsion, at low cost, noise is small, environmentally friendly, environment is suitable
The advantages that Ying Xingqiang, high energy conversion and utilization efficiency.When being charged using power grid to the system battery group, charge power is lower,
Thus to power grid without impact.It can be charged with distance increasing unit to battery pack when using daytime, it can also be with the paddy electricity in evening to battery
Group charging, such efficiency of energy utilization are higher.
Compared with prior art, the beneficial effect of the application is: both having met the traction of high-power, low speed and discontinuous operation
Demand, and meet the advantages that at low cost, noise is small, environmentally friendly, environmental suitability is strong, energy conversion and utilization efficiency is high.
Optionally, the commercial power charged device can also include:
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the city by the charger
The electric energy of electricity；
Central control unit is connect with the booster battery, for controlling second DC to DC converter, institute
State the operation of the first DC to DC converter, the battery pack, the electric machine controller and the transmission system.
Optionally, booster battery can be connect with instrument and meter etc..
This system can provide electric energy, when preventing electric power deficiency, instrument and meter to subsequent device using booster battery
Equal devices cannot be indicated normally, to influence judgement of the staff to system operation situation；It can using central control unit
To multiple devices carry out centralized control so that each device stable coordination run.
Wherein, central control unit is to instrument and meter, booster battery, distance increasing unit controller, battery pack, motor control
Device, transmission system etc. carry out comprehensively monitoring.Central control system issues instruction, by electric machine controller to the start and stop of motor, turn
Speed, steering, energy regenerating etc. are controlled；Central control system issues instruction, is realized by distance increasing unit controller to distance increasing unit
Operating status be monitored；Central control system issues instruction, state-of-charge, electricity by battery management system to battery pack
Equilibrium etc. between the working condition of pond group, single battery between battery pack is managed.
Optionally, the power distribution equipment can be power distribution cabinet.Power distribution equipment may include main branch and sub-branch, wherein institute
Main branch is stated for powering to the motor, the sub-branch is used to power by the booster battery to instrument and meter.
Embodiment three
Embodiments further provide a kind of discontinuous operation electric traction systems of extended-range high-power low-speed by one of the application
System.The system includes at least each building block of system in embodiment one, and can use the mode of fuel charge.Fig. 3
It is the schematic diagram according to the electric traction system of the application another embodiment.In the figure, dotted line indicates that fuel fills
Electric installation, solid line indicate the connection relationship between component.Wherein, the fuel charge device may include:
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit, for controlling the operating status of the distance increasing unit；
Power distribution equipment connects with the distance increasing unit controller, the battery pack and first DC to DC converter respectively
It connects, the energy for providing the distance increasing unit is transmitted to the battery pack.
The system of the application uses distance increasing unit and distance increasing unit controller, relative to traditional large combustion engines (diesel engine or
Gas turbine) power or power grid power supply traction generator, have at low cost, noise is small, environmentally friendly, environmental suitability is strong,
The advantages that energy conversion and high utilization efficiency.
Optionally, the distance increasing unit is fuel-cell device or thermo-mechanical power generation device.Heat engine includes: gasoline engine, diesel oil
Machine, natural gas engine, gas turbine, Stirling-electric hybrid.
Optionally, the distance increasing unit includes fuel storage and generator, and wherein fuel storage is for storing combustion
Material；Generator is connect with the fuel storage, for being generated electricity using the fuel.
Optionally, the distance increasing unit controller is generator.
In an optional embodiment, embodiment two and embodiment three can be combined use, at this time both of which
A power distribution equipment can be shared, is also possible to using two independent power distribution equipments.
Example IV
Embodiments further provide a kind of discontinuous operation electric traction systems of extended-range high-power low-speed by one of the application
System.The system includes at least each building block of system in embodiment one, and can be charged by commercial power device and fuel
Charge both of which.Fig. 4 is the schematic diagram according to the electric traction system of the application another embodiment.In the figure
In, dotted line indicates that the control planning of signal, solid line indicate the connection relationship between component.Wherein, the charging unit can wrap
It includes:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；
Charger is connect with the power distribution equipment and electricity network respectively, is charged for supplying electricity to the battery pack using city；
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the city by the charger
The electric energy of electricity；
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit and the power distribution equipment respectively, for controlling the distance increasing unit
Operating status；
Central control unit is connect with the booster battery, for controlling second DC to DC converter, institute
State the first DC to DC converter, the battery pack, the electric machine controller, the distance increasing unit controller and the power train
The operation of system.
Wherein, charger end can access electricity network by bolt and socket, and engine controller with bolt and can be inserted
Seated connection enters power distribution equipment.
Fuel and power grid two ways is used to can be realized various modes to be battery-powered by the system of the application
It is complementary to one another, so that the stable operation for system provides multi-ensuring.
The typical mode of operation of the system of the application may include:
(1) load running mode
Battery pack carries out pressure stabilizing by power distribution cabinet, by the first DC/DC converter, becomes to exchange by inverter, then
Driving motor, motor pass through transmission system again, final driving load.Electric machine controller to the start and stop of motor, revolving speed, steering etc. into
Row control.
For the energy of system, load running mode is the electric energy (battery pack from system) of a large amount of consumption systems,
Powerful mechanical energy is externally provided.
(2) distance increasing unit operational mode
When central control system requires to need to charge to battery pack, distance increasing unit open, by power distribution cabinet to battery pack into
Row charging.Distance increasing unit consumes the included fuel of system, is converted into power storage in battery pack.The generated output of distance increasing unit can be with
Configuration is optimized as needed.
Distance increasing unit can be run simultaneously with load model, can also be with isolated operation.
(3) grid charging mode
System connects power grid (220V, 380V), and charger is charged by power distribution cabinet to battery pack.Particularly, in the paddy electricity phase
Between charge to battery pack, can be improved comprehensive utilization rate of energy source.In general, power grid has the competitively priced mechanism of paddy electricity, to filling
For electric side, cost is lower.
(4) fueling mode
The mode is used for the fuel tank fuel up of distance increasing unit.According to the difference of used distance increasing unit, difference can be added
Fuel.For example, internal combustion engine can add gasoline, diesel oil, methanol, natural gas etc., fuel cell can be with hydrogenation, methane etc..
In above-mentioned all embodiments, first DC to DC converter is reversible transducer, for passing through Brake Energy
Amount recycling is charged to the battery pack.
First DC to DC converter can be to voltage transformation: by DC/DC converter to the output voltage of fuel cell
Motor driver is available to after being converted；Simultaneously being capable of burning voltage: the output voltage of fuel cell be unstable, passes through DC/
DC converter closed-loop control system carries out pressure stabilizing to it.
The application uses the load of energy regenerating control mode expanded motor, and is set according to transmission system and different loads
Fixed, part kinetic energy when by load-retarding is output to battery pack, for using when other states；Motor is driven immediately by this
Originally the braking kinetic energy wasted is able to part effective use by mode.
Increase journey system in the embodiment above and trailer system is mutually indepedent.In the system of only electric propulsion, although
System structure is simplified, but power distribution cabinet can still retain the interface that distance increasing unit is battery pack charging.
System provided by the present application can be applied to multiple fields, for example, artificial surfing pond, railway locomotive traction, mine etc.
Industrial circle etc..
In one embodiment, present invention also provides a kind of artificial surfing cell systems, including as described above any
A electric traction system, the electric traction system are used to provide kinetic energy to the liquid being contained in the artificial surfing pond, with
Just wave is formed.
Artificial surfing cell system includes tractor, and the vehicle-mounted charge cabinet installed on tractor is equipped with by distribution box
Socket can at any time charge to battery pack.Artificial requirement of the surfing pond to traction is: power about 1 to 20MW, hauling speed
1 to 10 metre per second (m/s), the distance of traction is less than 1 km.In artificial surfing cell system, week time of motor starting and stopping and full-load run
Phase be minute grade, usually 1 to 5 minute.The discontinuous operation electric traction system of extended-range high-power low-speed provided by the present application
It can satisfy the traction requirement of artificial surfing cell system.
Above-mentioned embodiment, several situation when only the application is for real working condition.The increasing journey that this thing provides
The discontinuous operation electric traction system of formula high-power low-speed is proposed for high-power, low speed, the traction of discontinuous operation power
, which, as energy storage device, solves energy resource supply problem when High power Traction demand using battery pack, and utilizes increasing
Journey device is realized battery pack small-power and flexibly charge, high-power discontinuous discharges and low speed is discontinuous respectively to battery-powered
The problem of operation, simultaneity factor is simple and reliable, energy conversion and the high purpose of utilization efficiency.
In the description of the present application, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Application product using when the orientation or positional relationship usually put, be merely for convenience of description the application and simplify description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as the limitation to the application.In addition, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as referring to
Show or imply relative importance.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State term.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of discontinuous operation electric traction system of extended-range high-power low-speed, which is characterized in that the system includes:
Battery pack, for storing electric energy；
Charging unit is connect with the battery pack, for described battery-powered；
First DC to DC converter is connect with the charging unit, carries out transformation and steady for the voltage to the battery pack
Pressure；
Inverter is connect, for DC voltage to be changed into alternating voltage with first DC to DC converter；
Electric machine controller is connect with the inverter, for controlling the operating status of motor；
Motor is connect with the electric machine controller；With
Transmission system is connect with the motor, for controlling the operating status of load under the drive of the motor.
2. system according to claim 1, which is characterized in that the charging unit includes commercial power charged device and/or combustion
Expect charging unit.
3. system according to claim 2, which is characterized in that the commercial power charged device includes:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；With
Charger is connect with the power distribution equipment and electricity network, is charged for supplying electricity to the battery pack using city.
4. system according to claim 3, which is characterized in that the commercial power charged device further include:
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the alternating current by the charger
Electric energy；With
Central control unit is connect with the booster battery, for controlling second DC to DC converter, described
The operation of one DC to DC converter, the battery pack, the electric machine controller and the transmission system.
5. system according to claim 4, which is characterized in that the power distribution equipment includes main branch and sub-branch, wherein
The main branch is used to power to the motor, and the sub-branch is used to power by the booster battery to instrument and meter.
6. system according to claim 2, which is characterized in that the fuel charge device includes:
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit, for controlling the operating status of the distance increasing unit；With
Power distribution equipment is connect with the distance increasing unit controller, the battery pack and first DC to DC converter respectively,
Energy for providing the distance increasing unit is transmitted to the battery pack.
7. system according to claim 6, which is characterized in that the distance increasing unit is fuel-cell device or thermo-mechanical power generation
Device.
8. system according to claim 6, which is characterized in that the distance increasing unit includes:
Fuel storage, for storing fuel；With
Generator is connect with the fuel storage, for being generated electricity using the fuel.
9. system according to claim 1, which is characterized in that the charging unit includes:
Power distribution equipment is connect with the battery pack and first DC to DC converter respectively；
Charger is connect with the power distribution equipment and electricity network respectively, is charged for supplying electricity to the battery pack using city；
Second DC to DC converter is connect with the power distribution equipment；
Booster battery is connect with second DC to DC converter, for storing the alternating current by the charger
Electric energy；
Distance increasing unit, the energy for providing fuel are converted to electric energy；
Distance increasing unit controller is connect with the distance increasing unit and the power distribution equipment respectively, for controlling the operation of the distance increasing unit
State；With
Central control unit is connect with the booster battery, for controlling second DC to DC converter, described
One DC to DC converter, the battery pack, the electric machine controller, the distance increasing unit controller and the transmission system
Operation.
10. system according to any one of claim 1 to 9, which is characterized in that first DC to DC converter
For reversible transducer, charge for passing through Brake energy recovery to the battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593749.1U CN208971430U (en) | 2018-09-28 | 2018-09-28 | The discontinuous operation electric traction system of extended-range high-power low-speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593749.1U CN208971430U (en) | 2018-09-28 | 2018-09-28 | The discontinuous operation electric traction system of extended-range high-power low-speed |
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