CN109572449A - Electric drive system and quarry tipper - Google Patents
Electric drive system and quarry tipper Download PDFInfo
- Publication number
- CN109572449A CN109572449A CN201811654213.0A CN201811654213A CN109572449A CN 109572449 A CN109572449 A CN 109572449A CN 201811654213 A CN201811654213 A CN 201811654213A CN 109572449 A CN109572449 A CN 109572449A
- Authority
- CN
- China
- Prior art keywords
- driving motor
- inverter
- drive system
- electric drive
- connect
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 13
- 230000009466 transformation Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 24
- 238000010586 diagram Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 6
- 238000005065 mining Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Control Of Eletrric Generators (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of electric drive system and quarry tipper, it is related to being driven by electricity technical field, which includes: generating set, inverter and driving motor group；Generating set includes threephase alternator and Transformer Rectifier equipment；Driving motor group includes driving motor and driving motor potential device；Generating set exports the low-voltage DC after step-down rectifier to inverter by Transformer Rectifier equipment；Low-voltage DC is converted to low-voltage AC by inverter；Driving motor group realizes the driving with low-voltage AC to driving motor by driving motor potential device.It by the voltage of inverter is low pressure by original middle pressure drop by Transformer Rectifier equipment and driving motor potential device, and the IGBT model for accordingly matching driving under low pressure in inverter is more, and cost can be greatly reduced.Therefore, electric drive system and quarry tipper provided by the invention, reduce the voltage of inverter, to improve the voltage utilization of IGBT, reduce costs.
Description
Technical field
The present invention relates to technical field is driven by electricity, more particularly, to a kind of electric drive system and quarry tipper.
Background technique
It is to complete rock earthwork removing and Ore Transportation task and use a kind of heavy that quarry tipper, which is in surface mine,
Type dumper, work characteristics are that length of run is short, carrying is heavy, and common large size power shovel or hydraulic shovel are loaded, and travel to and fro between digging point
With unload mine point.100 tons or more of big quality vehicle, is generally used electric transmission: engine driven generators, then is driven with electric current
The inner motor (driving motor) of rear-wheel (Electric Motor Wheel), travels rear wheel drive vehicle.
Specifically, the alternating current generator in quarry tipper with diesel engine machine mechanical connection generates three-phase alternating current,
DC power supply is provided for inverter after three-phase alternating current is rectified, direct current is converted to alternating current by inverter, so that Electric Motor Wheel
In driving motor drive vehicle driving.IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar
Transistor) it is power device in inverter, cooperation inverter completes the function of direct current being transformed into alternating current.Mining self-unloading
Each Electric Motor Wheel of vehicle is by an independent inverter control, to provide individual direct torque for traction and braking.
The line voltage of the voltage of inverter namely generator and motor is close in the electric drive system of existing quarry tipper
1100V, belongs to middle pressure scope, and the IGBT model of relevant matches driving is less.Generally select the IGBT of model 3300V, voltage benefit
It is lower with rate, and higher cost.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of electric drive system and quarry tipper, to reduce inverter
Voltage reduces cost to improve the voltage utilization of IGBT.
In a first aspect, being applied to quarry tipper, the electric drive system the embodiment of the invention provides a kind of electric drive system
It include: generating set, inverter and driving motor group；The public direct-current of the output end of the generating set and the inverter is female
Line connection, the output end of the inverter are connect with the driving motor group；
The generating set includes threephase alternator and Transformer Rectifier equipment, the input terminal of the Transformer Rectifier equipment
It is connect with the threephase alternator, the output end of the Transformer Rectifier equipment and the common DC bus of the inverter connect
It connects；The driving motor group includes driving motor and the driving motor potential device connecting with the driving motor；
The generating set exports the low-pressure direct after step-down rectifier to the inverter by the Transformer Rectifier equipment
Galvanic electricity；The low-voltage DC is converted to low-voltage AC by the inverter；The driving motor group passes through the driving electricity
Machine potential device realizes the driving with the low-voltage AC to the driving motor.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating Transformer Rectifier equipment includes the first switching relay and rectification circuit, the first switching relay and the rectification circuit
Exchange end is connect with the threephase alternator respectively, and the DC terminal of the rectification circuit and the common DC bus connect
It connects；
The first switching relay goes out for realizing the star connection of the threephase alternator with single-phase winding six
Switching between line connection.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
Stating Transformer Rectifier equipment includes step-down transformer and rectification circuit；
The step-down transformer is connect with the exchange end of the threephase alternator and the rectification circuit respectively, described
The DC terminal of rectification circuit is connect with the common DC bus；Or the rectification circuit exchange end and DC terminal respectively with
The threephase alternator is connected with the step-down transformer, and the step-down transformer is connect with the common DC bus.
With reference to first aspect the first or second of possible embodiment, the embodiment of the invention provides first aspects
The third possible embodiment, wherein the rectification circuit be uncontrollable rectifier circuit.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein institute
Stating driving motor potential device includes the second switching relay, and the second switching relay is connect with the driving motor, institute
Driving motor is stated to connect with the output end of the inverter；
The second switching relay is for realizing cutting between the star connection and delta connection of the driving motor
It changes.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein institute
Stating driving motor potential device includes step-up transformer；
The DC terminal of the step-up transformer is connect with the output end of the inverter, the exchange end of the step-up transformer
It is connect with the driving motor.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein institute
Stating electric drive system includes two inverters and two driving motor groups；
The output end of the generating set is connect with the common DC bus of two inverters respectively, and two described inverse
Become device and two driving motor groups connect one to one.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein institute
Stating electric drive system further includes braking resistor, and the braking resistor is connect with the common DC bus of the inverter.
Second aspect, the embodiment of the present invention also provide a kind of quarry tipper, including such as above-mentioned first aspect or its is any
Electric drive system described in the possible embodiment of kind.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
Stating quarry tipper further includes diesel engine；
The diesel engine is connect with the threephase alternator in the electric drive system.
The embodiment of the present invention bring it is following the utility model has the advantages that
In the embodiment of the present invention, electric drive system is applied to quarry tipper, which includes: generating set, inversion
Device and driving motor group；The output end of generating set and the common DC bus of inverter connect, the output end of inverter and drive
Dynamic motor group connection；Generating set includes threephase alternator and Transformer Rectifier equipment, the input terminal of Transformer Rectifier equipment with
Threephase alternator connection, the output end of Transformer Rectifier equipment and the common DC bus of inverter connect；Driving motor group
Including driving motor and the driving motor potential device being connect with driving motor；Generating set passes through Transformer Rectifier equipment to inversion
Device exports the low-voltage DC after step-down rectifier；Low-voltage DC is converted to low-voltage AC by inverter；Driving motor group
The driving with low-voltage AC to driving motor is realized by driving motor potential device.Pass through Transformer Rectifier equipment and driving electricity
The voltage of inverter is low pressure by original middle pressure drop by machine potential device, and accordingly matches driving under low pressure in inverter
IGBT model is more, and the IGBT of this voltage class on wind-powered electricity generation using extremely wide, maturity is high, can be greatly reduced into
This.Therefore, compared with prior art, electric drive system and quarry tipper provided in an embodiment of the present invention, reduce inverter
Voltage reduces costs to improve the voltage utilization of IGBT.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification and attached drawing
Specifically noted structure is achieved and obtained.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of electric drive system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of first switching relay provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of quarry tipper provided in an embodiment of the present invention.
Icon:
100- generating set；110- threephase alternator；120- Transformer Rectifier equipment；121- first switches relay；
122- rectification circuit；123- step-down transformer；200- inverter；300- driving motor group；310- driving motor；320- driving electricity
Machine potential device；321- second switches relay；322- step-up transformer；400- brake resistor grid；10- electric drive system；20- bavin
Oil turbine.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
For the voltage of the electric drive system of quarry tipper close to 1100V, the IGBT model of relevant matches driving is less at present, leads
Cause voltage utilization lower, higher cost.Based on this, a kind of electric drive system and quarry tipper provided in an embodiment of the present invention,
The voltage of electric drive system can be reduced, to improve the voltage utilization of IGBT, reduces cost.
To be carried out first to a kind of electric drive system disclosed in the embodiment of the present invention detailed convenient for understanding the present embodiment
It is thin to introduce.
Embodiment one:
The embodiment of the invention provides a kind of electric drive system, which is applied to quarry tipper；In original hardware
It is constant, or system voltage is reduced in the lesser situation of change, cost is significantly reduced using low-voltage-grade IGBT, it is compatible original
System, the convenient upgrading on original system.
Fig. 1 is a kind of structural schematic diagram of electric drive system provided in an embodiment of the present invention, as shown in Figure 1, the electric drive system
It include: generating set 100, inverter 200 and driving motor group 300；The output end of generating set 100 and the public affairs of inverter 200
Common DC bus connection, the output end of inverter 200 are connect with driving motor group 300.
Further, as shown in Figure 1, generating set 100 includes threephase alternator 110 and Transformer Rectifier equipment 120,
The input terminal of Transformer Rectifier equipment 120 is connect with threephase alternator 110, the output end of Transformer Rectifier equipment 120 and inversion
The common DC bus of device 200 connects.Driving motor group 300 includes driving motor 310 and the driving connecting with driving motor 310
Motor potential device 320.Generating set 100 is exported by Transformer Rectifier equipment 120 to inverter 200 low after step-down rectifier
Straightening galvanic electricity；Low-voltage DC is converted to low-voltage AC by inverter 200；Driving motor group 300 passes through driving motor transformation
Equipment 320 realizes the driving with low-voltage AC to driving motor 310.
It can be by the voltage of inverter 200 by original by Transformer Rectifier equipment 120 and driving motor potential device 320
Middle pressure drop is low pressure, and the IGBT model for accordingly matching driving under low pressure in inverter 200 is more, and the IGBT of this voltage class
Using extremely wide on wind-powered electricity generation, maturity is high, and cost can be greatly reduced.Therefore, compared with prior art, the present invention is implemented
The electric drive system that example provides, reduces the voltage of electric drive system, to improve the voltage utilization of IGBT, reduces costs.
In view of quarry tipper generallys use two Electric Motor Wheels, in some possible embodiments, above-mentioned electric drive system
Including two inverters 200 and two driving motor groups 300；The output end of generating set 100 respectively with two inverters 200
Common DC bus connection, two inverters 200 and two driving motor groups 300 connect one to one.It should be noted that inverse
Become device 200 and driving motor group 300 number be it is corresponding with the number of the Electric Motor Wheel of quarry tipper, it is electronic in the present embodiment
Wheel is 2, and but the scope of the present invention is not limited thereto.
In some possible embodiments, Transformer Rectifier equipment 120 includes the first switching relay and rectification circuit, and first
Switching relay and the exchange end of rectification circuit are connect with threephase alternator 110 respectively, the DC terminal of rectification circuit with it is upper
State common DC bus connection.First switching relay for realizing threephase alternator 110 star connection and it is single-phase around
Switching between six outlet connections of group.When threephase alternator 110 is using single-phase six outlet connection of winding, three groups it is single-phase around
Group is separately connected one group of rectification circuit.
By star triangular transformation it is found that if threephase alternator 110 uses voltage when star connection for 1100V,
The threephase alternator 110 uses voltage when single-phase six outlet connection of winding for 690V, therefore by sending out three-phase alternating current
The voltage of inverter 200 can be dropped to 690V by 1100V by the transformation of 110 mode of connection of motor, the IGBT of corresponding matching driving
Model is more, and this voltage class IGBT on wind-powered electricity generation using extremely wide, maturity is high, and cost can be greatly reduced.
Fig. 2 is a kind of structural schematic diagram of first switching relay provided in an embodiment of the present invention, as shown in Fig. 2, first
Switching relay includes two interlocking relay K1, K2, and U1-U2 is the U phase winding of threephase alternator 110, and V1-V2 is
The V phase winding of threephase alternator 110, W1-W2 are the W phase winding of threephase alternator 110.When K1 connection V2 contact,
When K2 connection W2 contact, the star connection of threephase alternator 110 is formed, when K1 connection U3 contact, K2 connection V3 contact,
Form the six outlet connection of single-phase winding of threephase alternator 110.It therefore, can be real by the movement of the first switching relay
Switching between the six outlet connection of star connection and single-phase winding of existing threephase alternator 110.
In other possible embodiments, Transformer Rectifier equipment 120 includes step-down transformer and rectification circuit.In one kind
In possible implementation, step-down transformer is connect with the exchange end of threephase alternator 110 and rectification circuit respectively, rectification
The DC terminal of circuit is connect with above-mentioned common DC bus；The middle pressure (such as 1100V) three that threephase alternator 110 generates intersects
Galvanic electricity is converted to low pressure (such as 690V) three-phase alternating current through step-down transformer, and low-voltage three-phase AC electricity becomes low by rectification circuit
Straightening galvanic electricity.In alternatively possible implementation, the exchange end of rectification circuit and DC terminal respectively with three phase AC power generating
Machine 110 is connected with step-down transformer, and step-down transformer is connect with above-mentioned common DC bus；Threephase alternator 110 generates
The middle rectified circuit conversion of pressure three-phase alternating current be medium voltage DC, medium voltage DC is converted to low-pressure direct through step-down transformer
Galvanic electricity.
Optionally, above-mentioned rectification circuit can be uncontrollable rectifier circuit.
In some possible embodiments, above-mentioned driving motor potential device 320 includes the second switching relay, and second cuts
It changes relay to connect with driving motor 310, driving motor 310 is connect with the output end of inverter 200.Second switching relay is used
Switching between the star connection and delta connection for realizing driving motor 310.Likewise, pass through star triangular transformation it is found that
When driving motor 310 is switched to delta connection by star connection, the driving voltage of driving motor 310 can be reduced, such as may be used
To be reduced to 690V by original 1100V.
The physical circuit of second switching relay is referred to the prior art, and which is not described herein again.
In other possible embodiments, above-mentioned driving motor potential device 320 includes step-up transformer；Boosting transformation
The DC terminal of device is connect with the output end of inverter 200, and the exchange end of step-up transformer is connect with driving motor 310.Boosting becomes
What depressor can export inverter 200 presses alternating current as 690V low-voltage AC is converted in 1100V, so as to drive
The driving motor 310 of 1100V works normally.
Fig. 3 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention, as shown in figure 3, the electricity drives system
System includes generating set 100, inverter 200 and driving motor group 300；Generating set 100 include threephase alternator 110,
The exchange end of first switching relay 121 and rectification circuit 122, the first switching relay 121 and rectification circuit 122 is respectively with three
Phase alternating current generator 110 connects, and the DC terminal of rectification circuit 122 is connect with above-mentioned common DC bus；Driving motor group 300 is wrapped
Driving motor 310 and the second switching relay 321 are included, the second switching relay 321 is connect with driving motor 310, driving motor
310 connect with the output end of inverter 200.First switching relay 121 connects for realizing the star of threephase alternator 110
Switching between six outlet connection of method and single-phase winding, the second switching relay 321 connect for realizing the star of driving motor 310
Switching between method and delta connection.
In embodiment shown in Fig. 3, which is changed to star connection the electricity of inverter 200 after delta connection
Pressure can drop to 690V by 1100V, and the IGBT model of corresponding matching driving is more, and this voltage class IGBT is applied on wind-powered electricity generation
Extremely wide, maturity is high, and cost can be greatly reduced；In addition the compatible original system of hardware level can do original system upgrading and change
Make use；More multi-voltage grade is available, and different type vehicle is facilitated to use.
Fig. 4 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention, as shown in figure 4, the electricity drives system
System includes generating set 100, inverter 200 and driving motor group 300；Generating set 100 include threephase alternator 110,
Step-down transformer 123 and rectification circuit 122, the exchange end of rectification circuit 122 and DC terminal respectively with threephase alternator 110
It is connected with step-down transformer 123, step-down transformer 123 is connect with above-mentioned common DC bus；Driving motor group 300 includes driving
The DC terminal of motor 310 and step-up transformer 322, step-up transformer 322 is connect with the output end of inverter 200, transformation of boosting
The exchange end of device 322 is connect with driving motor 310.
In embodiment shown in Fig. 4, which can be made inverse by step-down transformer 123 and step-up transformer 322
The voltage for becoming device 200 can drop to 690V by 1100V, consequently facilitating the type selecting of IGBT, improves the voltage utilization of IGBT, reduce
IGBT cost.
Fig. 5 is the structural schematic diagram of another electric drive system provided in an embodiment of the present invention, as shown in figure 5, the electricity drives system
System includes threephase alternator 110,122, two inverters 200 of rectification circuit and two driving motors 310, three-phase alternating current hair
Motor 110 uses the independent uncontrollable rectifier mode of three-phase windings, and driving motor 310 uses delta connection；Wherein, three-phase alternating current is sent out
The interface of motor 110 and driving motor 310 is also compatible with star connection.Specifically, as shown in figure 5, threephase alternator 110 is
Three groups of single-phase windings connect three groups of diode uncontrollable rectifier circuits；The winding of driving motor 310 is connected to triangle manner can
Control inverter.
Further, when quarry tipper uses electric brake, above-mentioned electric drive system further includes braking resistor, braking resistor
It is connect with the common DC bus of inverter.As shown in figure 5, braking resistor be brake resistor grid 400, brake resistor grid 400 with
The common DC bus of inverter 200 connects；Brake resistor grid 400 are used to discharge the energy of brake.
Two kinds of voltage class seamless switchings of 1100V and 690V may be implemented in electric drive system provided in an embodiment of the present invention；Both
Compatible original 1100V system, can also be switched to 690V wind-powered electricity generation low-cost system (690V system)；Since compatibility is original
The new product of 1100V system, the electric drive system can be used as the stock of existing product, spare part；690V system can be become using wind-powered electricity generation
Device technology is flowed, risk is small, at low cost.
Embodiment two:
The embodiment of the present invention also provides a kind of quarry tipper, which includes that the electricity of above-described embodiment one such as drives
System.
In the embodiment of the present invention, electric drive system includes: generating set, inverter and driving motor group；Generating set it is defeated
The connection of the common DC bus of outlet and inverter, the output end of inverter are connect with driving motor group；Generating set includes three
Phase alternating current generator and Transformer Rectifier equipment, the input terminal of Transformer Rectifier equipment are connect with threephase alternator, Transformer Rectifier
The output end of equipment and the common DC bus of inverter connect；Driving motor group includes driving motor and connect with driving motor
Driving motor potential device；Generating set exports the low-voltage direct after step-down rectifier to inverter by Transformer Rectifier equipment
Electricity；Low-voltage DC is converted to low-voltage AC by inverter；Driving motor group is realized by driving motor potential device with low
Press driving of the alternating current to driving motor.By Transformer Rectifier equipment and driving motor potential device by the voltage of inverter by original
First middle pressure drop is low pressure, and the IGBT model for accordingly matching driving under low pressure in inverter is more, and this voltage class
For IGBT using extremely wide on wind-powered electricity generation, maturity is high, and cost can be greatly reduced.Therefore, compared with prior art, of the invention
The quarry tipper including electric drive system that embodiment provides, reduces the voltage of inverter, to improve the voltage of IGBT
Utilization rate reduces costs.
Fig. 6 is a kind of structural schematic diagram of quarry tipper provided in an embodiment of the present invention, as shown in fig. 6, this is mining certainly
Unloading further includes diesel engine 20；Diesel engine 20 is connect with the threephase alternator in electric drive system 10.Diesel oil hair
Motivation 20 and threephase alternator are mechanically connected, for driving threephase alternator to generate three-phase alternating current.
It is apparent to those skilled in the art that for convenience and simplicity of description, foregoing description it is mining
The specific work process of dumper, can be with reference to the corresponding process in aforementioned electric drive system embodiment, and details are not described herein.
Quarry tipper provided in an embodiment of the present invention, with electric drive system provided by the above embodiment technology having the same
Feature reaches identical technical effect so also can solve identical technical problem.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, 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" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of electric drive system, which is characterized in that be applied to quarry tipper, the electric drive system includes: generating set, inversion
Device and driving motor group；The output end of the generating set is connect with the common DC bus of the inverter, the inverter
Output end connect with the driving motor group；
The generating set includes threephase alternator and Transformer Rectifier equipment, the input terminal of the Transformer Rectifier equipment and institute
Threephase alternator connection is stated, the output end of the Transformer Rectifier equipment is connect with the common DC bus of the inverter；
The driving motor group includes driving motor and the driving motor potential device connecting with the driving motor；
The generating set exports the low-voltage DC after step-down rectifier to the inverter by the Transformer Rectifier equipment；
The low-voltage DC is converted to low-voltage AC by the inverter；The driving motor group passes through the driving motor transformation
Equipment realizes the driving with the low-voltage AC to the driving motor.
2. electric drive system according to claim 1, which is characterized in that the Transformer Rectifier equipment includes the first switching relay
Device and rectification circuit, it is described first switching relay and the rectification circuit exchange end respectively with the threephase alternator
Connection, the DC terminal of the rectification circuit are connect with the common DC bus；
The first switching relay connects for realizing the star connection of the threephase alternator with single-phase six outlet of winding
Switching between method.
3. electric drive system according to claim 1, which is characterized in that the Transformer Rectifier equipment include step-down transformer and
Rectification circuit；
The step-down transformer is connect with the exchange end of the threephase alternator and the rectification circuit respectively, the rectification
The DC terminal of circuit is connect with the common DC bus；Or the rectification circuit exchange end and DC terminal respectively with it is described
Threephase alternator is connected with the step-down transformer, and the step-down transformer is connect with the common DC bus.
4. electric drive system according to claim 2 or 3, which is characterized in that the rectification circuit is uncontrollable rectifier circuit.
5. electric drive system according to claim 1, which is characterized in that the driving motor potential device includes the second switching
Relay, the second switching relay are connect with the driving motor, the output end of the driving motor and the inverter
Connection；
The second switching relay is for realizing the switching between the star connection and delta connection of the driving motor.
6. electric drive system according to claim 1, which is characterized in that the driving motor potential device includes boosting transformation
Device；
The DC terminal of the step-up transformer is connect with the output end of the inverter, the exchange end of the step-up transformer and institute
State driving motor connection.
7. electric drive system according to claim 1, which is characterized in that the electric drive system include two inverters and
Two driving motor groups；
The output end of the generating set is connect with the common DC bus of two inverters respectively, two inverters
It connects one to one with two driving motor groups.
8. electric drive system according to claim 1, which is characterized in that the electric drive system further includes braking resistor, described
Braking resistor is connect with the common DC bus of the inverter.
9. a kind of quarry tipper, which is characterized in that including such as above-mentioned electric drive system of any of claims 1-8.
10. quarry tipper according to claim 9, which is characterized in that the quarry tipper further includes diesel engine
Machine；
The diesel engine is connect with the threephase alternator in the electric drive system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654213.0A CN109572449B (en) | 2018-12-29 | 2018-12-29 | Electric drive system and mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811654213.0A CN109572449B (en) | 2018-12-29 | 2018-12-29 | Electric drive system and mining dump truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109572449A true CN109572449A (en) | 2019-04-05 |
| CN109572449B CN109572449B (en) | 2021-04-27 |
Family
ID=65915391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811654213.0A Active CN109572449B (en) | 2018-12-29 | 2018-12-29 | Electric drive system and mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109572449B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118127A (en) * | 2019-06-13 | 2019-08-13 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drives the power supply semitrailer of fracturing unit |
| WO2021088538A1 (en) * | 2019-11-05 | 2021-05-14 | 中车大连机车车辆有限公司 | Axle-controlled internal combustion locomotive, and main transmission system and method therefor |
| US12021389B2 (en) | 2021-10-12 | 2024-06-25 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply system for electrically driven wellsite facility |
| US12173594B2 (en) | 2019-06-13 | 2024-12-24 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing system |
| US12180819B2 (en) | 2019-10-30 | 2024-12-31 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| US12203353B2 (en) | 2022-02-16 | 2025-01-21 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electrically-driven fracturing system |
| US12326074B2 (en) | 2019-06-13 | 2025-06-10 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201426075Y (en) * | 2009-04-13 | 2010-03-17 | 深圳市金动科力实业有限公司 | Conversion circuit of dual-frequency double-pressure diesel generator set, and dual-frequency double-pressure diesel generator set |
| CN101847877A (en) * | 2010-06-02 | 2010-09-29 | 四川吉风电源科技有限公司 | Frequency conversion control system of double-fed asynchronous wind power generator |
| CN201937539U (en) * | 2011-03-11 | 2011-08-17 | 吉林工商学院 | Star-delta automatic switching device for motor |
| JP5631200B2 (en) * | 2010-12-28 | 2014-11-26 | 川崎重工業株式会社 | Synchronous motor control device and synchronous generator control device |
| CN105984351A (en) * | 2015-01-29 | 2016-10-05 | 徐工集团工程机械股份有限公司 | Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper |
| CN106794772A (en) * | 2014-08-29 | 2017-05-31 | 西门子工业公司 | For the electric drive system of mining haul truck |
-
2018
- 2018-12-29 CN CN201811654213.0A patent/CN109572449B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201426075Y (en) * | 2009-04-13 | 2010-03-17 | 深圳市金动科力实业有限公司 | Conversion circuit of dual-frequency double-pressure diesel generator set, and dual-frequency double-pressure diesel generator set |
| CN101847877A (en) * | 2010-06-02 | 2010-09-29 | 四川吉风电源科技有限公司 | Frequency conversion control system of double-fed asynchronous wind power generator |
| JP5631200B2 (en) * | 2010-12-28 | 2014-11-26 | 川崎重工業株式会社 | Synchronous motor control device and synchronous generator control device |
| CN201937539U (en) * | 2011-03-11 | 2011-08-17 | 吉林工商学院 | Star-delta automatic switching device for motor |
| CN106794772A (en) * | 2014-08-29 | 2017-05-31 | 西门子工业公司 | For the electric drive system of mining haul truck |
| CN105984351A (en) * | 2015-01-29 | 2016-10-05 | 徐工集团工程机械股份有限公司 | Power system of electric-driven dumper, electric-driven dumper and power switching method of electric-driven dumper |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118127A (en) * | 2019-06-13 | 2019-08-13 | 烟台杰瑞石油装备技术有限公司 | A kind of electricity drives the power supply semitrailer of fracturing unit |
| US12173594B2 (en) | 2019-06-13 | 2024-12-24 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing system |
| US12312930B2 (en) | 2019-06-13 | 2025-05-27 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing system |
| US12326074B2 (en) | 2019-06-13 | 2025-06-10 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| US12180819B2 (en) | 2019-10-30 | 2024-12-31 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing apparatus and control method thereof, fracturing system |
| WO2021088538A1 (en) * | 2019-11-05 | 2021-05-14 | 中车大连机车车辆有限公司 | Axle-controlled internal combustion locomotive, and main transmission system and method therefor |
| US12021389B2 (en) | 2021-10-12 | 2024-06-25 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Power supply system for electrically driven wellsite facility |
| US12203353B2 (en) | 2022-02-16 | 2025-01-21 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Electrically-driven fracturing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109572449B (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109572449A (en) | Electric drive system and quarry tipper | |
| US11799292B2 (en) | On-board bidirectional AC fast charger for electric vehicles | |
| CN104044475B (en) | Improved drive system and the device using the drive system | |
| CN104170204B (en) | motor drive | |
| CN104092273B (en) | Electric vehicle driving and charging integrated control method and electric vehicle operated with same | |
| JP5528327B2 (en) | Apparatus and method for controlling power shunt, and hybrid vehicle having the same circuit | |
| CN108566071A (en) | Modular power system | |
| CN101499771A (en) | Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power | |
| US9960724B2 (en) | Driving system for hybrid electric vehicles and method of controlling phase of pulse width modulation carrier signal in the same | |
| CN103560746A (en) | Multi-parallel inverter motor speed regulating system and control method thereof | |
| EP4092900B1 (en) | Rotating electrical machine control device | |
| CN103259418A (en) | Electrical motor test variable-frequency power source system | |
| CN103580584A (en) | Redundancy medium voltage alternating current-direct current-alternating current frequency conversion device of duplex winding synchronous motor of mine hoist | |
| CN103280982A (en) | Control method for motor testing variable-frequency power supply | |
| CN101488728A (en) | Elevator driving inverter system without electrolytic capacitor | |
| CN101527457A (en) | Staggered driving PWM compensating current generator and control method thereof | |
| US6590302B2 (en) | Method for reducing natural system oscillations to ground potential in an electrical drive having a voltage intermediate circuit | |
| JP4905204B2 (en) | Load drive device | |
| CN106059229B (en) | Induction generation system and train | |
| KR102141100B1 (en) | Integrated charger for electric vehicle | |
| CN104378034B (en) | The operation control system of brushless ac compound rectifier excitation brshless DC motor | |
| CN102739070B (en) | A kind of energy feedback type three-phase high-voltage frequency converter | |
| CN2871284Y (en) | Push motor driving system of double inverter | |
| CN111313799B (en) | Method for controlling three-phase motor | |
| CN113422560A (en) | Vehicle-mounted integrated charger driving circuit based on double three-phase permanent magnet synchronous motor driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Applicant after: Sany Heavy Energy Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Applicant before: SANY HEAVY ENERGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230417 Address after: 102202 floor 101, building 2, yard 31, Nanyan Road, Nankou Town, Changping District, Beijing Patentee after: Beijing Sany Intelligent Motor Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: Sany Heavy Energy Co.,Ltd. |
|
| TR01 | Transfer of patent right |