CN105984351A - Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper - Google Patents
Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper Download PDFInfo
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- CN105984351A CN105984351A CN201510047051.4A CN201510047051A CN105984351A CN 105984351 A CN105984351 A CN 105984351A CN 201510047051 A CN201510047051 A CN 201510047051A CN 105984351 A CN105984351 A CN 105984351A
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- dumper
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- alternating current
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Abstract
The invention discloses a power system of an electric-driven dumper, the electric-driven dumper and a power switching method of the electric-driven dumper. The power system comprises an external drive system, a detecting element and a control device, wherein the external drive system comprises a bow collector; the detecting element detects the traveling state of the electric-driven dumper and transmits a traveling state signal to the control device; the control device determines the power mode required by the electric-driven dumper according to the traveling state signal. Under an external power mode, the control device controls the bow collector to contact with an alternating-current wiring system to introduce alternating currents obtained from the alternating-current wiring system to serve as the power source of the external drive system, large power can be provided for the electric-driven dumper and especially the heavy-loaded electric-driven dumper climbing up a slope, and accordingly the speed of the electric-driven dumper can be increased, and production efficiency can be further increased.
Description
Technical field
The present invention relates to engineering machinery field, particularly to a kind of electric transmission dumper dynamical system
System, electric transmission dumper and method.
Background technology
At present, electric transmission quarry tipper is owing to its mobility is good, turnaround speed fast, climbing
The advantages such as ability is strong, the field such as mining industry, transportation is widely used in the open, becomes main
Want vehicle.Electric transmission quarry tipper basic structure be unit frame, twin shaft rear-guard,
Rear-unloading type, uses AC frequency conversion traction technique to realize driving, and this technology uses high-power diesel
Driven by engine electrical power generators, becomes electric energy by mechanical energy, and electric current is through over commutation, excitation
And inversion control, supply driving wheel in or wheel limit traction motor, convert electrical energy into machine
Tool energy, then impart power to driving wheel by planet gear reducing mechanism, it is achieved power transmits.
Traditional electric transmission quarry tipper use high output diesel engine as power source, its
Power has breached 4000 horsepowers；Some producers are in order to obtain bigger power, dynamic
Force system uses twin-engined parallel waies.Power-transmission system also includes: synchronous generator,
Commutation inversion system and Electric Motor Wheel assembly, Electric Motor Wheel assembly includes planetary gear speed reducing mechanism and leads with exchanging
Drawing motor, wherein AC traction electric motor has traction and dynamic electric braking function concurrently.
Along with the increase of the mining degree of depth, use Diesel engine as the fax of dynamical system
Dynamic quarry tipper exposes some shortcomings, such as: (1) heavy duty upward slope is short of power, car
Speed is low, causes production efficiency low；(2) fuel consumption is relatively big, causes cost of transportation to increase；
(3) discharge amount of exhaust gas of Diesel engine is big, causes severe air to pollute.
Summary of the invention
One of present invention solution technical problem is that: existing electric transmission quarry tipper uses bavin
Oil turbine, as dynamical system, there will be the problem being short of power when heavy duty is gone up a slope.
According to the first aspect of the invention, it is provided that a kind of electric transmission dumper dynamical system, bag
Include: external drive system, detecting element and control device；Described external drive system includes:
Bow collector；The transport condition of described detecting element detection electric transmission dumper, and by transport condition
Signal transmission is to described control device；Described control device determines according to described transport condition signal
The dynamic mode that described electric transmission dumper needs；Wherein, when outside dynamic mode,
Described control device controls described bow collector contact ac stringing system, introduces alternating current as institute
State the electrical source of power of external drive system.
Further, also include: internal drive system；Described internal drive system includes: start
Machine and electromotor；Wherein, when internal motivation pattern, described control device controls institute
State generator rotation described in driven by engine, produce alternating current as described internal drive system
Electrical source of power.
Further, described exchange stringing system includes: traction substation and power cable；Described
Traction substation includes: three-phase alternating current electrical network and transformator；Wherein, described three-phase alternating current electrical network
Connecting the primary coil of described transformator, described power cable connects the secondary wire of described transformator
Circle.
Further, also include: commutation inversion system；Wherein, described commutation inversion system is by institute
The alternating current of the alternating current or the generation of described electromotor of stating bow collector introducing is changed into voltage and frequency
The adjustable alternating current of rate, drives traction motor to rotate.
Further, described commutation inversion system includes: the first commutator, the second commutator and inverse
Become device；Wherein, the input of described first commutator is connected with the outfan of described bow collector,
The outfan of described first commutator is connected with the input of described inverter；Described second rectification
The input of device is connected with the outfan of described electromotor, the outfan of described second commutator with
The input of described inverter connects；The outfan of described inverter and described traction motor
Input connects.
Further, described detecting element includes: obliquity sensor, is used for measuring described electric transmission
The inclination value of road residing for dumper, and by the transmission of described inclination value to described control device；With
And Weight-measuring device, for measuring the Weight Loaded value of described electric transmission dumper, and by institute
State the transmission of Weight Loaded value to described control device；Wherein, described transport condition include described in incline
Angle value and described Weight Loaded value.
Further, described control device judges that whether described inclination value is more than angle set value and institute
Whether state Weight Loaded value more than weight setpoint value；If it is, determine described electric transmission self-unloading
The dynamic mode that car needs is external impetus pattern, is otherwise internal motivation pattern.
Further, also include: brakes；Wherein, described brakes includes: braking is single
Unit and braking resistor；Described brake unit respectively with the input of described inverter, described braking
Resistance and the electrical connection of described control device；When braking implemented by car load, described control device control
Make the switch of described brake unit, and control described traction motor and become generating state；Wherein,
The electric energy that described traction motor produces is consumed by described braking resistor through described brake unit
Fall.
According to the second aspect of the invention, it is provided that a kind of electric transmission dumper, including: above
Described electric transmission dumper dynamical system.
According to the third aspect of the invention we, it is provided that the side of a kind of electric transmission dumper powershift
Method, including: the transport condition of detecting element detection electric transmission dumper, and transport condition is believed
Number transmission to controlling device；Described control device determines described electricity according to described transport condition signal
The dynamic mode that transmission dumper needs；Wherein, when outside dynamic mode, described
Control device domination set pantograph contact ac stringing system, introduce alternating current as external drive system
The electrical source of power of system.
Further, also including: when internal motivation pattern, described control device controls
Driven by engine generator rotation, produces the alternating current electrical source of power as internal drive system.
Further, also include: alternating current that described bow collector is introduced by commutation inversion system or
The alternating current that described electromotor produces is changed into the alternating current of voltage and frequency-adjustable, drives traction
Motor rotation.
Further, the transport condition of detecting element detection electric transmission dumper, and by transport condition
Signal transmission to control device step include: described detecting element includes: obliquity sensor and
Weight-measuring device；Described obliquity sensor measures inclining of road residing for described electric transmission dumper
Angle value, and by the transmission of described inclination value to described control device；And described Weight-measuring device
Measure the Weight Loaded value of described electric transmission dumper, and described Weight Loaded value is transmitted to institute
State control device；Wherein, described transport condition includes described inclination value and described Weight Loaded value.
Further, according to described transport condition signal, described control device determines that described electric transmission is certainly
The step of dynamic mode that unloading needs includes: whether described control device judges described inclination value
Whether it is more than weight setpoint value more than angle set value and described Weight Loaded value；If it is,
Determine that the dynamic mode that described electric transmission dumper needs is external impetus pattern, be otherwise internal
Dynamic mode.
Further, also include: when braking implemented by car load, it is single that described control device controls braking
The switch of unit, and control traction motor and become generating state；Wherein, described traction motor
The electric energy produced is consumed by described braking resistor through described brake unit.
In the present invention, electric transmission dumper dynamical system includes: external drive system, detection unit
Part and control device；Described external drive system includes: bow collector；Detecting element detection fax
The transport condition of dynamic dumper, and transport condition signal is transmitted to controlling device；This control fills
Put and determine, according to transport condition signal, the dynamic mode that electric transmission dumper needs；Wherein, outside
Under the state of portion's dynamic mode, control device domination set pantograph contact ac stringing system, introduce
Alternating current is as the electrical source of power of external drive system, it is achieved thereby that obtain from exchange stringing system
Alternating current as electrical source of power, can be that electric transmission dumper provides bigger power, especially
Bigger power can be provided when electric transmission dumper heavy duty is gone up a slope, thus improve speed, enter
One step ground, can improve production efficiency.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, the present invention
Further feature and advantage will be made apparent from.
Accompanying drawing explanation
The accompanying drawing of the part constituting description describes embodiments of the invention, and together with saying
Bright book is together for explaining the principle of the present invention.
Referring to the drawings, according to detailed description below, the present invention can be more clearly understood from,
Wherein:
Fig. 1 is the structural representation illustrating electric transmission dumper according to some embodiments of the invention
Figure.
Fig. 2 is to illustrate electric transmission dumper dynamical system according to some embodiments of the invention
Connection schematic diagram.
Fig. 3 is to illustrate electric transmission dumper dynamical system according to some embodiments of the invention
Structural representation.
Fig. 4 is to illustrate electric transmission dumper powershift according to some embodiments of the invention
The flow chart of method.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that
Arrive: unless specifically stated otherwise, the parts illustrated the most in these embodiments and the phase of step
Layout, numerical expression and numerical value are not limited the scope of the invention.
Simultaneously, it should be appreciated that for the ease of describing, the chi of the various piece shown in accompanying drawing
Very little is not to draw according to actual proportionate relationship.
Description only actually at least one exemplary embodiment is illustrative below, certainly
Not as to the present invention and application thereof or any restriction of use.
May not make in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Thin discussion, but in the appropriate case, described technology, method and apparatus should be considered to authorize to be said
A part for bright book.
Shown here with in all examples discussed, any occurrence should be construed as merely
Exemplary rather than conduct limits.Therefore, other example of exemplary embodiment can have
There is different values.
It should also be noted that similar label and letter expression similar terms in following accompanying drawing, therefore,
The most a certain Xiang Yi accompanying drawing is defined, then need not it is carried out in accompanying drawing subsequently
Discussed further.
Fig. 1 is the structural representation illustrating electric transmission dumper according to some embodiments of the invention
Figure.As it is shown in figure 1, the dynamical system of electric transmission dumper 100 includes: external drive system
101, detecting element 103 and control device 104；External drive system 101 includes: bow collector
1011, such as, external drive system is arranged on above the driver's cabin of dumper 100；Control dress
Put 104 to electrically connect (Fig. 1 does not shows with external drive system 101, detecting element 103 respectively
Go out)；Detecting element 103 detects the transport condition of electric transmission dumper 100, and will travel shape
The transmission of state signal is to controlling device 104；Control device 104 to determine according to this transport condition signal
The dynamic mode (such as external impetus pattern) that electric transmission dumper 100 needs；Wherein, exist
Under the state of external impetus pattern, control device 104 domination set pantograph 1011 contact ac stringing
System 110, introduces the alternating current electrical source of power as external drive system 101.
In this embodiment, by the transport condition of detecting element detection electric transmission dumper, and
Transport condition signal is transmitted to controlling device；Control device and determine electricity according to transport condition signal
The dynamic mode that transmission dumper needs；Wherein, when outside dynamic mode, control
Device domination set pantograph contact ac stringing system, introduces alternating current as external drive system
Electrical source of power, such that it is able to realize obtaining alternating current as electrical source of power from exchange stringing system,
Can be that electric transmission dumper provides bigger power, especially go up a slope in electric transmission dumper heavy duty
Time bigger power can be provided, thus improve speed, and then production efficiency can be improved.Logical
Cross external drive system, electric transmission dumper heavy duty upward slope can be efficiently solved and be short of power,
The problems such as speed is low, and fuel consumption is big, it is possible to increase the power transmission efficiency of whole system,
Shorten haulage time, improve productivity ratio, minimizing diesel consumption, alleviate air pollution, significantly drop
Low production cost.
In an embodiment of the present invention, electric transmission dumper dynamical system also includes: internal drive
System, electrically connects with controlling device；This internal drive system includes: electromotor 102 is (such as
Diesel engine) and electromotor (such as synchronous alternating-current generator, Fig. 1 not shown in)；Its
In, when internal motivation pattern, control device 104 and control electromotor 102 drive
Electric machine rotation, produces the alternating current electrical source of power as internal drive system.Such as, electric transmission
Dumper uses electromotor as power source, and electromotor moves electromotor turn by flexibly connecting dribbling
Dynamic, produce the electrical source of power that three-phase alternating current travels as electric transmission dumper.
In an embodiment of the present invention, the dynamic mode that electric transmission dumper needs can be: outer
Portion's dynamic mode or internal motivation pattern, can use external impetus mould according to practical situation
Formula or internal motivation pattern.Such as electric transmission dumper, when heavy duty up-hill journey, can be adopted
Use external impetus pattern, bigger power can be obtained by exchange stringing system.The most such as,
Electric transmission dumper, when straight road driving, can use internal motivation pattern, by starting
Machine and electromotor obtain power.
In an embodiment of the present invention, as it is shown in figure 1, exchange stringing system 110 includes: lead
Draw electric substation 111 and power cable 118；Traction substation 111 includes: three-phase alternating current electrical network
117 and transformator 116；Wherein, the primary line of three-phase alternating current electrical network 117 connection transformer 116
Circle, the secondary coil of power cable 118 connection transformer 116.In this embodiment, three-phase
AC network 117 is supplied to transformator 116 high pressure three-phase electricity, becomes low pressure through transformator 116
After three-phase electricity, electric transmission dumper 100 by bow collector 1011 from power cable 118 power taking,
The electrical source of power travelled as electric transmission dumper.Such as, go up a slope in electric transmission dumper heavy duty
Time, can using external drive system from the exchange alternating current that obtains of stringing system as electrical source of power,
So that dumper obtains enough power, improve speed, and then improve production efficiency.
In an embodiment of the present invention, external drive system all uses with internal drive system and exchanges
The mode of transmission, compared to DC Transmission, the detent torque of AC Drive is big, hauling ability good,
Climbing capacity is strong, operate steadily, can realize stepless speed regulation, system reliably, especially keeps in repair
Convenient；And for DC Transmission, owing to direct current generator exists carbon brush, spoilage is higher, safeguard
Rate is corresponding the highest.
In an embodiment of the present invention, as it is shown in figure 1, electric transmission dumper dynamical system is also wrapped
Include: commutation inversion system 105；Wherein, bow collector 1011 is introduced by commutation inversion system 105
Alternating current or the alternating current that produces of electromotor be changed into the alternating current of voltage and frequency-adjustable,
Traction motor (not shown in figure 1) is driven to rotate.In this embodiment, inverse by rectification
Become system on AC electricity and carry out commutation inversion process, thus obtain and be suitable for driving traction motor to turn
Dynamic voltage and the alternating current of frequency-adjustable, thus drive electric transmission dumper to travel.
Fig. 2 is to illustrate electric transmission dumper dynamical system according to some embodiments of the invention
Connection schematic diagram.As in figure 2 it is shown, electric transmission dumper dynamical system is hybrid power system,
Including: external drive system and internal drive system.Wherein, external drive system includes: collection
Pantograph 2011；Internal drive system includes: electromotor 202 and electromotor 206.Bow collector
2011, electromotor 202 respectively with the bow collector 1011 shown in Fig. 1, electromotor 102 class
Seemingly, electromotor 206 is similar with foregoing electromotor.
Wire connection structure about the commutation inversion system 105 shown in Fig. 1 is referred to figure
Shown in 2.Commutation inversion system includes: first commutator the 208, second commutator 209 and inversion
Device 210 (being such as encapsulated in commutation inversion switch board, be installed on platform)；Wherein,
The input of one commutator 208 is connected with the outfan of bow collector 2011, the first commutator 208
Outfan be connected with the input of inverter 210；The input of the second commutator 209 with send out
The outfan of motor 206 connects, and the outfan of the second commutator 209 is defeated with inverter 210
Enter end to connect；The outfan of inverter 210 is connected with the input of traction motor 211.Lead
Draw motor (such as AC traction motor) 211 and can be installed to back axle, traction motor
Output shaft is connected with hub reduction gear (not shown in Fig. 2), it is achieved reduction of speed increases the function turned round.
Such as, in peace forthright face, working region travel phase, electric transmission dumper can use
Electromotor (such as Diesel engine) 202 is as power source, and electromotor 202 is by flexibility even
Flange 207 drives electromotor (such as synchronous alternating-current generator) 206 to rotate, and produces three and intersects
Stream electricity, is transformed to unidirectional current, unidirectional current warp again through the second commutator 209 by three-phase alternating current
Cross inverter 210 and be changed into the three-phase alternating current electric drive traction motor of voltage and frequency-adjustable
211, traction motor 211 drive vehicle through hub reduction gear (not shown in Fig. 2), logical
Over commutation Inversion Control System traction motor realizes frequency control.
The most such as, in the heavy duty up-hill journey stage, double dynamical pattern opened by electric transmission dumper,
Electromotor 202 maintains low idling, provides power for hydraulic system (not shown in Fig. 2)；Control
Device processed (not shown in Fig. 2) domination set pantograph 2011 rises, contact ac stringing system
Power cable, is incorporated into alternating current on electric transmission dumper car body, by the first commutator 208
Three-phase alternating current is transformed to unidirectional current, and unidirectional current is changed into voltage and frequency through inverter 210
The adjustable three-phase alternating current of rate, drives traction motor 211, and traction motor 211 is through wheel limit
Decelerator (not shown in Fig. 2) drives vehicle to travel.In this heavy duty upward slope stage, two kinds are moved
Force mode exists simultaneously, and on the one hand electromotor drives the small power generator generating carried, supply
Accumulator 24V power supply, on the other hand drives the rotor of electromotor 206 to rotate, now, controls
System can cut off the field circuit of electromotor so that electromotor 206 does not generates electricity, and by exchange frame
Wire system supplies motor power.
Certainly, Fig. 2 shows two inverters 210 and two traction motors 211, example
As, an inverter and the most connected traction motor can act on fax
One back axle of dynamic dumper, another inverter and another traction the most connected
Motor can act on another back axle of electric transmission dumper.Certainly, people in the art
Member is appreciated that the quantity of above-mentioned inverter and traction motor is only exemplary, electric transmission
Dumper can also include inverter and the traction motor of other quantity, goes to live in the household of one's in-laws on getting married the most one by one
State.
In an embodiment of the present invention, as in figure 2 it is shown, electric transmission dumper dynamical system is also wrapped
Include: Support Capacitor 214, wherein the two ends of this Support Capacitor respectively with the first commutator 208
Two outfans connect, and are connected with two outfans of the second commutator 209 respectively, as
Shown in Fig. 2.The output voltage of commutator can be entered in rectification inverter circuit by this Support Capacitor
Row smothing filtering；And amplitude pulse current can be absorbed, stop and produce amplitude pulse electricity
Pressure so that the voltage pulsation on DC line is maintained in allowed band；It is also prevented from voltage
Cross punching and instantaneous overvoltage to IGBT (Insulated Gate Bipolar Transistor, insulation
Grid bipolar transistor) impact.It will be understood by those skilled in the art that about this support electricity
The model held can select according to actual needs, and the scope of the present invention is not limited to that.
In an embodiment of the present invention, as in figure 2 it is shown, electric transmission dumper dynamical system is also wrapped
Include: brakes；Wherein, brakes includes: brake unit 213 and braking resistor 212
(such as, braking resistor can be encapsulated in braking resistor cubicle)；Brake unit 213 respectively with
The input of inverter 210, braking resistor 212 and control device (not shown in Fig. 2)
Electrical connection；When braking implemented by car load, control device and control the switch of brake unit 213, and
Control traction motor 211 and become generating state, by electric energy through brake unit 213 by braking
Resistance 212 consumes.
Such as, brake unit 213 can be IGBT chopper, with corresponding braking resistor
212 series connection, play the purpose of braking deceleration.When electric transmission dumper is implemented braking, lead
Draw motor 211 be in generating state (this is owing to rotor field is faster than stator rotating excitation field,
Merit angle is negative, and electromagnetic torque is also negative, is equivalent to external force traction motor in tow and rotates, energy
It is to be electric energy from changes mechanical energy, is in regenerative braking state).When changes mechanical energy is electric energy
When feeding back to DC line, if feedback is gone back electricity and can not be absorbed in time, DC line can be caused
Support Capacitor 214 charges and voltage rises, when voltage exceedes limit value, and excess voltage protection
Will action and block inverter 210, make traction motor 211 be in free deceleration regime,
Control device (not shown in Fig. 2) and maintain this electricity by controlling the switch of brake unit 213
The balance of pressure, thus by power consumption in braking resistor 212, it is achieved the system of traction motor
Dynamic deceleration.
Fig. 3 is to illustrate electric transmission dumper dynamical system according to some embodiments of the invention
Structural representation.Fig. 3 show detecting element 303, control device 304, bow collector 301,
Electromotor 302 and electromotor 306, these respectively with foregoing detecting element 103,
Control device 104, bow collector 1011, electromotor 102 and electromotor 206 to be similar to.
As it is shown on figure 3, detecting element 303 includes: obliquity sensor 3031 and weight measurement
Device 3032；Obliquity sensor 3031 electrically connects with controlling device 304, this obliquity sensor
3031 for measuring the inclination value of road residing for electric transmission dumper, and this inclination value is transmitted
To controlling device 304；Weight-measuring device 3032 electrically connects with controlling device 304, and this is heavy
Measuring device 3032 is used for measuring the Weight Loaded value of electric transmission dumper, and by this loading
Gravimetric value transmission is to controlling device 304；Wherein, transport condition includes inclination value and Weight Loaded
Value.
Control device 304 and judge that whether inclination value is more than angle set value (such as angle set value
It is 5 degree) and whether Weight Loaded value is more than weight setpoint value, and (such as weight setpoint value is 400
Ton)；If it is, determine that the dynamic mode that electric transmission dumper needs is external impetus pattern,
It it is otherwise internal motivation pattern.Certainly, about angle set value and the above-mentioned act of weight setpoint value
Example is only exemplary, and those skilled in the art can set according to practical situation, therefore originally
The scope of invention is not limited in the example above.
Determine that the dynamic mode that electric transmission dumper needs is external impetus mould when controlling device 304
During formula, this control device sends rising bow signal to the executive component of bow collector 301, controls to rise
Bow collector 301 (is such as turned to by domination set pantograph, lifts and fender bracket oil cylinder realizes collection
Turning to or the action such as lifting of pantograph)；And send signal to reduce the speed to the throttle of electromotor 302,
By the aperture reducing throttle, the rotating speed of this electromotor is reduced to idling mode；And to sending out
The field circuit of motor 306 sends shutoff signal, cuts off field circuit so that this electromotor is not
Generating.
Determine that the dynamic mode that electric transmission dumper needs is internal motivation mould when controlling device 304
During formula, this control device sends fall bow signal to the executive component of bow collector 301, controls to decline
Bow collector 301；And send raising speed signal to the throttle of electromotor 302, by increasing throttle
The rotating speed of this electromotor is improved to normal operating rate state by aperture；And to electromotor
The field circuit of 306 sends and recovers signal, recovers field circuit so that this electrical power generators.
In this embodiment, control device to fill according to inclination value and the weight measurement of obliquity sensor
The Weight Loaded value put carries out transport condition judgement, if vehicle is in the heavy duty upward slope stage (i.e.
Inclination value is more than weight setpoint value more than angle set value and Weight Loaded value), control device certainly
The dynamic rising bow signal that sends, bow collector rise, contact power cable, dynamic mode is switched to outside
Dynamic mode.If vehicle is in straight section, (such as inclination value is less than or equal to angle set
Value), control device and automatically send fall bow signal, bow collector lands, in dynamic mode is switched to
Portion's dynamic mode.
In an embodiment of the present invention, Weight-measuring device can be pressure transducer, will record
Force value be directly transferred to the control device of above-described embodiment, or can also measure for other
Device or system, for example, it is possible to be by four pressure transducers, an obliquity sensor and
The Weight-measuring device of individual computing controller composition, these four pressure transducers are separately mounted to electricity
On four oleo-pneumatic suspensions of transmission dumper, measure respectively and obtain four oil-air pressure values, this
Individual obliquity sensor is arranged in driver's cabin, measures the angle of pitch and the angle of heel of car load, by four
Force value and the angle of pitch and angle of heel are all transmitted to computing controller, this computing controller meter
Calculation obtains Weight Loaded value, and the control of this Weight Loaded value transmission to above-described embodiment is filled
Put, so that above-mentioned control device obtains Weight Loaded value.
Fig. 4 is to illustrate electric transmission dumper powershift according to some embodiments of the invention
The flow chart of method.
In step S401, the transport condition of detecting element detection electric transmission dumper, and will travel
Status signal transmission is to controlling device.
In step S402, control device and determine electric transmission dumper needs according to transport condition signal
Dynamic mode.Wherein, when outside dynamic mode, device domination set pantograph is controlled
Contact ac stringing system, introduces the alternating current electrical source of power as external drive system.
In this embodiment, control device and obtained the traveling of electric motor car dumper by detecting element
State, so that it is determined that the dynamic mode that electric transmission dumper needs, and determining the dynamic of needs
When force mode is external impetus pattern, control device domination set pantograph contact ac stringing system,
Introduce the alternating current electrical source of power as external drive system, such that it is able to realize from exchange stringing
System acquisition alternating current, as electrical source of power, can be that electric transmission dumper provides bigger power,
Bigger power especially can be provided when electric transmission dumper heavy duty is gone up a slope, thus improve speed,
And then production efficiency can be improved.By external drive system, electric transmission can be efficiently solved
Dumper heavy duty is gone up a slope and is short of power, the problems such as speed is low, and fuel consumption is big, it is possible to increase
The power transmission efficiency of whole system, shortening haulage time, the productivity ratio that improves, minimizing diesel oil disappear
Consumption, alleviates air pollution, is substantially reduced production cost.
In another embodiment, the method for electric transmission dumper powershift also includes: in inside
Under the state of dynamic mode, control device and control driven by engine generator rotation, produce exchange
Electricity is as the electrical source of power of internal drive system.Such as, electric transmission dumper uses electromotor to make
For power source, electromotor moves generator rotation by flexibly connecting dribbling, produces three-phase alternating current
The electrical source of power travelled as electric transmission dumper.
In an embodiment of the present invention, the dynamic mode that electric transmission dumper needs can be: outer
Portion's dynamic mode or internal motivation pattern, can use external impetus mould according to practical situation
Formula or internal motivation pattern.Such as electric transmission dumper, when heavy duty up-hill journey, can be adopted
Use external impetus pattern, bigger power can be obtained by exchange stringing system.The most such as,
Electric transmission dumper, when straight road driving, can use internal motivation pattern, by starting
Machine and electromotor obtain power.
In an embodiment of the present invention, the method for electric transmission dumper powershift also includes: whole
Alternating current or the alternating current of electromotor generation that bow collector is introduced by stream inversion system are changed into electricity
Pressure and the alternating current of frequency-adjustable, drive traction motor to rotate.
In an embodiment of the present invention, the transport condition of detecting element detection electric transmission dumper,
And transport condition signal transmission to the step controlling device is included: detecting element includes: inclination angle
Sensor and Weight-measuring device；Obliquity sensor measures inclining of road residing for electric transmission dumper
Angle value, and this inclination value is transmitted to controlling device；And Weight-measuring device measurement electric transmission
The Weight Loaded value of dumper, and this Weight Loaded value is transmitted to controlling device；Wherein, OK
The state of sailing includes inclination value and Weight Loaded value.
In another embodiment, control device and determine electric transmission dumper according to transport condition signal
The step of the dynamic mode needed includes: controls device and judges that whether inclination value is more than angle set
Whether value and Weight Loaded value be more than weight setpoint value；If it is, determine electric transmission dumper
The dynamic mode needed is external impetus pattern, is otherwise internal motivation pattern.
In an embodiment of the present invention, the method for electric transmission dumper powershift also includes:
When braking implemented by car load, control device and control the switch of brake unit, and control traction motor
Become generating state；Wherein, traction motor produce electric energy through brake unit by braking electricity
Resistance consumes.
So far, the present invention is described in detail.In order to avoid covering the design of the present invention, do not have
Details more known in the field are described.Those skilled in the art as described above, completely
It can be appreciated how implement technical scheme disclosed herein.
The method and system of the present invention may be achieved in many ways.Such as, can pass through software,
Hardware, firmware or software, hardware, any combination of firmware realize the present invention method and
System.For the said sequence of step of described method merely to illustrate, the present invention's
The step of method is not limited to order described in detail above, unless specifically stated otherwise.
Additionally, in certain embodiments, the present invention also can be embodied as the journey recorded in the recording medium
Sequence, these programs include the machine readable instructions for realizing the method according to the invention.Thus,
The present invention also covers the record medium of the storage program for performing the method according to the invention.
Although some specific embodiments of the present invention being described in detail by example,
But it should be appreciated by those skilled in the art, above example is not merely to illustrate, and not
It is to limit the scope of the present invention.It should be appreciated by those skilled in the art, can without departing from
In the case of scope and spirit of the present invention, above example is modified.The model of the present invention
Enclose and be defined by the following claims.
Claims (15)
1. an electric transmission dumper dynamical system, it is characterised in that including:
External drive system, detecting element and control device；Described external drive system includes:
Bow collector；
The transport condition of described detecting element detection electric transmission dumper, and by transport condition signal
Transmission is to described control device；Described control device determines described according to described transport condition signal
The dynamic mode that electric transmission dumper needs；
Wherein, when outside dynamic mode, described control device controls described bow collector
Contact ac stringing system, introduces the alternating current electrical source of power as described external drive system.
Electric transmission dumper dynamical system the most according to claim 1, it is characterised in that also
Including:
Internal drive system；Described internal drive system includes: electromotor and electromotor；
Wherein, when internal motivation pattern, described control device controls described electromotor
Drive described generator rotation, produce the alternating current electrical source of power as described internal drive system.
Electric transmission dumper dynamical system the most according to claim 1, it is characterised in that
Described exchange stringing system includes: traction substation and power cable；Described traction power transformation
Included: three-phase alternating current electrical network and transformator；
Wherein, described three-phase alternating current electrical network connects the primary coil of described transformator, described power supply
Cable connects the secondary coil of described transformator.
Electric transmission dumper dynamical system the most according to claim 2, it is characterised in that also
Including:
Commutation inversion system；
Wherein, described bow collector is introduced by described commutation inversion system alternating current or described
The alternating current that motor produces is changed into the alternating current of voltage and frequency-adjustable, drives traction motor
Rotate.
Electric transmission dumper dynamical system the most according to claim 4, it is characterised in that
Described commutation inversion system includes: the first commutator, the second commutator and inverter；
Wherein, the input of described first commutator is connected with the outfan of described bow collector, institute
The input of the outfan and described inverter of stating the first commutator is connected；Described second commutator
Input be connected with the outfan of described electromotor, the outfan of described second commutator and institute
The input stating inverter connects；The outfan of described inverter is defeated with described traction motor
Enter end to connect.
Electric transmission dumper dynamical system the most according to claim 1, it is characterised in that
Described detecting element includes:
Obliquity sensor, for measuring the inclination value of road residing for described electric transmission dumper, and
By the transmission of described inclination value to described control device；And
Weight-measuring device, for measuring the Weight Loaded value of described electric transmission dumper, and will
The transmission of described Weight Loaded value is to described control device；
Wherein, described transport condition includes described inclination value and described Weight Loaded value.
Electric transmission dumper dynamical system the most according to claim 6, it is characterised in that
Described control device judges that whether described inclination value is more than angle set value and described loading weight
Whether value is more than weight setpoint value；If it is, determine what described electric transmission dumper needed
Dynamic mode is external impetus pattern, is otherwise internal motivation pattern.
Electric transmission dumper dynamical system the most according to claim 5, it is characterised in that also
Including:
Brakes；
Wherein, described brakes includes: brake unit and braking resistor；Described brake unit
Electrically connect with the input of described inverter, described braking resistor and described control device respectively；
When braking implemented by car load, described control device controls the switch of described brake unit, and controls
Described traction motor becomes generating state；Wherein, the electric energy warp that described traction motor produces
Cross described brake unit to be consumed by described braking resistor.
9. an electric transmission dumper, it is characterised in that including: such as claim 1 to 8 times
Electric transmission dumper dynamical system described in one.
10. the method for an electric transmission dumper powershift, it is characterised in that including:
The transport condition of detecting element detection electric transmission dumper, and transport condition signal is transmitted
To controlling device；
Described control device determines described electric transmission dumper needs according to described transport condition signal
Dynamic mode；
Wherein, when outside dynamic mode, described control device domination set pantograph contacts
Exchange stringing system, introduces the alternating current electrical source of power as external drive system.
11. methods according to claim 10, it is characterised in that also include:
When internal motivation pattern, described control device controls driven by engine electromotor
Rotate, produce the alternating current electrical source of power as internal drive system.
12. according to method described in claim 11, it is characterised in that also include:
Alternating current that described bow collector is introduced by commutation inversion system or described electromotor produce
Alternating current is changed into the alternating current of voltage and frequency-adjustable, drives traction motor to rotate.
13. methods according to claim 10, it is characterised in that detecting element detection fax
The transport condition of dynamic dumper, and transport condition signal transmission to the step controlling device is included:
Described detecting element includes: obliquity sensor and Weight-measuring device；
Described obliquity sensor measures the inclination value of road residing for described electric transmission dumper, and will
The transmission of described inclination value is to described control device；And
Described Weight-measuring device measures the Weight Loaded value of described electric transmission dumper, and by institute
State the transmission of Weight Loaded value to described control device；
Wherein, described transport condition includes described inclination value and described Weight Loaded value.
14. according to method described in claim 13, it is characterised in that described control device according to
Described transport condition signal determines the step bag of the dynamic mode that described electric transmission dumper needs
Include:
Described control device judges that whether described inclination value is more than angle set value and described loading weight
Whether value is more than weight setpoint value；If it is, determine what described electric transmission dumper needed
Dynamic mode is external impetus pattern, is otherwise internal motivation pattern.
15. methods according to claim 10, it is characterised in that also include:
When braking implemented by car load, described control device controls the switch of brake unit, and controls
Traction motor becomes generating state；Wherein, the electric energy that described traction motor produces is through institute
State brake unit to be consumed by described braking resistor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510047051.4A CN105984351A (en) | 2015-01-29 | 2015-01-29 | Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper |
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| CN201510047051.4A CN105984351A (en) | 2015-01-29 | 2015-01-29 | Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper |
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| CN105984351A true CN105984351A (en) | 2016-10-05 |
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| CN107554310A (en) * | 2017-09-04 | 2018-01-09 | 紫程（宁波）电动重型卡车有限公司 | Mine electric wheel dump and its dynamical system and control method |
| WO2019128416A1 (en) * | 2017-12-27 | 2019-07-04 | 株洲中车时代电气股份有限公司 | Method for seamless switching between dual-power power supply modes of locomotive |
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| CN108382232A (en) * | 2018-02-13 | 2018-08-10 | 内蒙古幸汇国创重工有限公司 | A kind of Dynamic design method of quarry tipper |
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| CN109572449A (en) * | 2018-12-29 | 2019-04-05 | 三重能有限公司 | Electric drive system and quarry tipper |
| CN109720220A (en) * | 2019-01-16 | 2019-05-07 | 中车大连机车车辆有限公司 | Electric vehicle distributed electrical source power supply system and operation method |
| CN111717045A (en) * | 2020-07-06 | 2020-09-29 | 徐州徐工矿业机械有限公司 | Hybrid power mining dump truck driving system |
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