CN107086831A - Direct current drive drive device and electrical equipment - Google Patents
Direct current drive drive device and electrical equipment Download PDFInfo
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- CN107086831A CN107086831A CN201710304722.XA CN201710304722A CN107086831A CN 107086831 A CN107086831 A CN 107086831A CN 201710304722 A CN201710304722 A CN 201710304722A CN 107086831 A CN107086831 A CN 107086831A
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- direct current
- chopper
- drive device
- brush
- drive
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
Abstract
The present invention provides a kind of direct current drive drive device and includes the electrical equipment of the direct current drive drive device.The direct current drive drive device that the present invention is provided, for driving electrical equipment, including：Direct current generator；Dc source；Instruct sending part；Output transducer；Controller；Driver；Chopper, it is characterised in that：Wherein, direct current generator has 2j armature winding branch roads that are separate and being made up of m winding, be connected with winding 2j × m commutator segment, the individual separate brushes of 2j for being connected with chopper and being in contact with commutator segment, chopper is single tube chopper, chopper has j separate copped wave units, dc source includes j separate power subsystems, each power subsystem connects one to one with a copped wave unit, a brush, and pair armature winding branch road being connected with the brush is powered, j and m are the positive integer not less than 2.
Description
Technical field
The invention belongs to direct current generator field, more particularly to a kind of direct current drive drive device and the direct current drive is included
The electrical equipment of drive device.
Background technology
With major city haze number of days and the increase of duration, exhaust emissions management of the country to fuel oil equipment is more next
It is stricter；In addition, in the office work environment of closing, fuel oil equipment is prohibitted the use of；In addition, this energy of oil is not
It is reproducible, exhaustion will be faced after decades.Therefore, using electricity as the energy electrical equipment such as electric automobile, electri forklift etc.
Electrical equipment is increasingly favored by manufacturer and consumer.It not only pollute it is small, can by regenerative resource provide electricity
Can, and compared with fuel oil equipment, it also has, and energy utilization rate is high, simple in construction, noise is small, dynamic property good and portability
High the advantages of.Under petroleum resources increasingly intense situation, electric driver is greatly developed, particularly high-power electric drive dress
Such as electronic battlebus, electronic warship, Electric aircraft and electric drive aircraft carrier are put, there is far-reaching meaning for national defense safety
Justice.
Due to alternating current generator, particularly asynchronous machine advantage simple in construction, reliable, lightweight, cheap, obtain
To being widely applied, still, it is present, and detent torque is small, poor starting current very big, smooth speed control, vibration and noise greatly with
And the shortcomings of control algolithm complexity.Even if using best control algolithm, the influence of higher hamonic wave is still very big in alternating current generator,
Performance in startup, braking, speed governing and low speed is all inferior to direct current generator.Therefore, it is very high to the performance requirement of electrical equipment
Occasion, such as domestic variable frequency air-conditioning, lifting elevator, electric automobile etc., still favor in installation direct current drive drive device.
In battery powered electrical equipment such as electric automobile, battery is one of core component.Due to current battery manufacture
The limitation of technical merit, a battery cell is in capacity, voltage and performance or can not meet the actual requirement of electrical equipment,
In order to meet the requirement of such electrical equipment high-energy electrical source of power, typically all multiple battery cells are combined using connection in series-parallel
Mode is used in groups, and larger power demand is loaded to meet.Pass through the output of the increase battery pack in parallel of multiple battery cells
Electric current, the output voltage of battery pack is increased by the series connection of multiple battery cells.
In electric automobile industry, typically there are the battery energy storage system of pure electric passenger vehicle 96~110 section capacity to be about 45
~80Ah lithium-ion battery monomer；Typically there are the battery energy storage system of pure electric bus 150~200 section capacity to be about 200
~400Ah lithium-ion battery monomer.Mining electric locomotive is essentially all to be powered by a few Battery pack group parallel connections, per Battery pack
Group is again monomer series-connected groups of by tens of batteries.The domestic vehicle-mounted battery of electric automobile is mostly first simultaneously using multiple battery cells
Join the connected mode connected again.
According to the requirement of national standard, the safe voltage of human body is 50 volts, according to the requirement of electrical equipment security performance, one
As preferential voltage class 48 from national standard, 36,24,12 volts.And the power of motor of electric automobile equipment is typically all ten
Multikilowatt, if using single direct current generator, the rated current of each phase is all hundreds of to arrive several kiloamperes, start and on
Electric current during slope is bigger.
As shown in Fig. 2 because the operating current of motor is very big, the output current of Large Copacity connection in series-parallel battery pack also it is corresponding very
Greatly, generally more than hundreds of kiloamperes are arrived.The connection of connecting line, connecting line and battery pack between connection in series-parallel battery pack and chopper
The connector of part, connecting line and chopper, all will cause heating serious due to flowing through high current.This resistance to connecting line and
Insulating properties, the contact resistance of connector and insulation protection are proposed higher requirement.Meanwhile, which increases be produced into
This, reduces the reliability and security of system.
In the case of battery cell quantity identical, the overall performance of connection in series-parallel battery pack is less than the performance of multiple battery cells
Summation.Multiple battery cells in groups after, energy density, power, performance, durability and the security of battery pack can all have certain journey
The decline of degree.And the generation of such case is due to that battery receives the factors such as manufacturing process, cell degradation and environment temperature
Influence, causes the inconsistent of the parameters such as the internal resistance of cell, voltage, capacity.Same size and the battery of model are in identical running environment
The phenomenon that lower performance parameter has differences is referred to as the inconsistency of battery.For battery pack system, inconsistency is objective
Exist, and during the charge and discharge cycles of battery pack, the depth of discharge of battery cell is different, and battery pack is most
The performance of big performance is often limited by the worst battery cell of performance, causes battery pack whole volume not play all.This
Also cause the overcharge of percentage of batteries monomer or overdischarge, aggravate the performance degradation of whole battery pack, electricity may be caused when serious
The security incidents such as the blast or burning in pond.
In battery pack, the voltage inconsistency of battery cell can cause large effect to battery pack, have influence on battery
The many aspects such as capacity, performance, life-span and the safety of group.Particularly, the inconsistent cell parallel composition battery of several voltages
After group, it is very easy to the high battery of voltage occur to the low battery charging of voltage, forms internal battery pack circulation, cause battery pack
Electricity is meaninglessly wasted, and finally influences battery efficiency.
The battery balanced problem of cell parallel plays decisive role to the performance of battery pack, and directly influences electronic set
Standby overall performance.Batteries in parallel connection group current imbalance is influenceed by many factors, for example battery capacity, open-circuit voltage, internal resistance,
Initially, polarization etc..When battery consistency is preferable, parallel is to the capability retention of battery pack without too big shadow
Ring, but when occur in battery pack short slab battery or by unmatched cell parallel together when, parameter inconsistence problems are led
Current imbalance is caused, current imbalance can further result in the inconsistent of use condition again, and then make the cyclicity of battery pack
It can be deteriorated.Particularly, the increase of batteries in parallel connection quantity can aggravate the influence of short slab battery.The battery cell of some in battery pack is unexpected
Life termination often lead to allomeric function failure.
During battery use, real time on-line monitoring is carried out to battery cell using battery management system, analysis judges
And attempt to eliminate or control the method referred to as cell balancing of battery inconsistency.But, battery management system does not have
Managerial ability in parallel, it is difficult to be managed the energy flow of each battery cell parallel connection.In addition, batteries in parallel connection quantity is more,
The difficulty of management is bigger.
To sum up, had a strong impact on greatly as the battery balanced problem in the battery pack of one of electrical equipment core component
The continuation of the journey of power electric equipment and performance, and then have impact on including on electric car, electric ship, Electric aircraft, or even national defence
Electronic battlebus, electronic warship, the development of Electric aircraft and electric drive aircraft carrier.
The content of the invention
The present invention is carried out to solve the above problems, it is therefore intended that provide a kind of direct current drive drive device and
Include the electrical equipment of the direct current drive drive device.
<Structure one>
The invention provides a kind of direct current drive drive device, it is arranged in electrical equipment, for driving electrical equipment, bag
Include：Direct current generator, with rated voltage and rated current；Dc source, with the voltage corresponding with rated voltage, is used for
The direct current corresponding with rated current is provided；Sending part is instructed, the value phase of the rotating speed exported with direct current generator or torque is sent
Corresponding command signal；Output transducer, the rotating speed of detection direct current generator output or torque, and send corresponding output feedback letter
Number；Controller, calculates according to command signal and output feedback signal and exports operation control signal and motor control signal；Drive
Dynamic device, enters working condition or halted state, in the operating condition according to motor control signal under operation control signal effect
Produce drive signal；Chopper, is converted to the controllable direct current of voltage by direct current in the presence of drive signal and is supplied to
Direct current generator, it is characterised in that：Wherein, direct current generator has 2j armature winding that are separate and being made up of m winding
Branch road, 2j × m commutator segment being connected with winding, the 2j for being connected with chopper and being in contact with commutator segment are individual separate
Brush, chopper is single tube chopper, and chopper has a separate copped wave units of j, dc source comprising j mutually
Independent power subsystem, each power subsystem connects one to one with a copped wave unit, a brush, and pair with the brush connect
The armature winding branch road connect is powered, and j and m are the positive integer not less than 2.
In the direct current drive drive device that the present invention is provided, it can also have the feature that：Wherein, single tube chopper
For buck chopper, boost chopper or buck-boost chopper, when single tube chopper is buck chopper, each copped wave list
The diode that member is connected containing a power switch pipe and with the power switch pipe differential concatenation, line is provided to corresponding brush
Electric current.
In the direct current drive drive device that the present invention is provided, it can also have the feature that：Wherein, drawing when brush
The rated current of outlet is I1, the rated current of direct current generator is INWhen, the number 2j of armature winding branch road meets following conditions：j
＞ IN÷I1, j is the positive integer not less than 2.
In the direct current drive drive device that the present invention is provided, it can also have the feature that：Wherein, armature winding
Connected mode is lap winding, and the excitation mode of main pole is permanent magnetism, separate excitation, series excitation, shunt excitation or compound excitation.
In the direct current drive drive device that the present invention is provided, it can also have the feature that：Wherein, power subsystem is
The rectifier power source obtained after battery pack or the rectified filtering of AC power, battery pack is made up of at least one battery cell.
In the direct current drive drive device that the present invention is provided, it can also have the feature that：Wherein, chopper be by
At least one SPM constitute or contain multiple power switch pipes, power switch pipe be electric power field effect transistor
Pipe, gate level turn-off thyristor, integrated gate commutated thyristor, insulated gate bipolar transistor, electric power bipolar transistor and
Any one in door pole stream-exchanging thyristor.
In the direct current drive drive device that the present invention is provided, it can also have the feature that, in addition to：Current sense
Device, wherein, the line current value of the lead-out wire of current sensor detection brush, and send corresponding current feedback signal, controller
Calculated according to command signal, current feedback signal and output feedback signal and export operation control signal and motor control letter
Number.
<Structure two>
Further, present invention also offers a kind of electrical equipment containing above-mentioned direct current drive drive device.
The effect of invention and effect
The direct current drive drive device and electrical equipment provided according to the present invention, because direct current generator has 2j mutually
It is independent and be made up of m winding armature winding branch road, be connected with winding 2j × m commutator segment, be connected with chopper
And 2j separate brushes being in contact with commutator segment, chopper is single tube chopper, chopper has j mutually solely
Vertical copped wave unit, dc source includes j separate power subsystems, each power subsystem and copped wave unit, one
Individual brush is connected one to one, and pair armature winding branch road being connected with the brush is powered, so each power subsystem
Output current is smaller for dc source total current, the connecting line, connecting line between power subsystem and chopper and electricity
The connector of the connector of source unit, connecting line and chopper, the requirement to contact resistance and insulation is relatively low, not only reduces life
The difficulty and cost of production, also contribute to the reliability and security of system.
The output current of each copped wave unit is separate, non-interfering, and the output current of chopper is all cuts
The linear superposition of the output current of ripple unit, so the electric current of chopper can linearly be increased by increasing the number of copped wave unit
Plus, the ripe control algolithm of original chopper circuit and the ripe manufacturing technology of direct current generator are not only remained, without considering simultaneously
Join the requirement to power switch pipe consistency of performance in equal Flow Technique, it is to avoid choose one carefully from substantial amounts of power switch pipe
The consuming for a large amount of manpower and financial resources that the high switch element of cause property is brought.
In addition, the direct current drive drive device of the present invention can break the external monopolization for great current drive device and envelope
Lock so that the direct current drive drive device can not only replace the fuel oil hair that pollution is big, toggle speed is slow and energy utilization rate is low
Motivation and applied at present can not using motor heavy-duty engine on, such as truck, bull-dozer, excavator heavy-duty engine etc.,
It can also be applied to need in military affairs on the electronic battlebus, electronic warship and electric drive aircraft carrier of more high current, realize low
Press the production domesticization of the direct current drive drive device of high current.And compared with AC motor drives, systematic function is more
It is superior.
In addition, in the environment of regenerative braking performance loop is not needed, the single tube chopper that the present invention is used is relative to half
Bridge and full-bridge chopper have a more succinct circuit, less device, the advantages of higher reliability and lower cost.
Therefore, direct current drive drive device of the invention and electrical equipment have structure design simple, reasonable, cost
Low, caloric value is small, stable work in work, safe and reliable, the advantages of service life is long.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the direct current drive drive device of the embodiment of the present invention；And
Fig. 2 is the electrical block diagram of heavy DC Vidacare corp of the prior art.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed direct current drive drive device of the present invention and electrical equipment.
Illustrate the embodiment of the present invention below in conjunction with accompanying drawing.
Direct current drive drive device 10 is arranged on electrical equipment such as electric tool, four-axle aircraft, electric automobile, electric ship
Oceangoing ship, commercial power electrical forklift, in electronic military equipment, for driving electrical equipment.
Fig. 1 is the electrical block diagram of the direct current drive drive device in the present embodiment.
As shown in figure 1, direct current drive drive device 10 includes direct current generator 11, dc source 12, instruction sending part 13, defeated
Go out sensor 14, controller 15, driver 18 and chopper 19.
Direct current generator 11 has rated voltage and rated current.Direct current generator 11 has main pole 111 and at least one
Armature 112.In embodiment, direct current generator has an armature 112.Armature 112 is the rotor of direct current generator.
Main pole 111 is that direct current generator 11 provides operating fields.The excitation mode of main pole is permanent magnetism, separate excitation, series excitation, simultaneously
Encourage or compound excitation.If main pole is separate excitation excitation mode, the Exciting Windings for Transverse Differential Protection of separate excitation is individually power supply and control, with armature winding
It is independent.If main pole is shunt excitation excitation mode, the Exciting Windings for Transverse Differential Protection of shunt excitation by single chopper and with dc source 12
Voltage identical independent DC power supply and drive circuit 18 are powered.In the present embodiment, main pole 111 uses the excitation side of series excitation
Formula.
Armature 112 includes 2j armature winding branch road 1121,2j × m commutator segment (not shown) and 2 groups of brushes
Group 1122.
Armature winding branch road 1121 is independently mounted on armature 112.Armature winding branch road 1121 is to be wrapped in armature by m
On winding constituted, m is more than 2 positive integer.The connected mode of winding is lap winding in armature winding branch road 1121.
During normal work, the electric current of all armature winding branch roads is independent of each other, separate.
2 groups of brush groups 1122 are divided into two groups according to the polarity difference of the main pole 111 corresponding to its locus, and respectively
Two groups of power lines of direct current generator are connected, and are in contact with the commutator segment of commutator.Each brush group is separate comprising j
Brush.2j brush be evenly distributed on direct current generator on the commutator that commutator segment is constituted, with direct current generator main pole
Position is corresponding, and each brush can at least be in contact with a commutator segment.One group of brush therein is equal along the circumferencial direction of motor
Even distribution, the locus of another group of brush is arranged in the middle of different groups of adjacent two brushes.In the present embodiment, brush is adopted
Narrow brush is used, it is dimensioned slightly smaller than the size of commutator segment.In the present embodiment, each brush at least can be with more than one commutation
Piece is contacted simultaneously.
Dc source 12 has the voltage corresponding with rated voltage, for providing the direct current corresponding with rated current
Electricity.Dc source 12 includes 2j separate power subsystems 121, each power subsystem and bridge arm unit, an electricity
Brush is connected one to one, and pair two armature winding branch roads being connected with the brush are powered.Power subsystem 121 is battery pack
Or the rectification source obtained after the rectified filtering of AC power, in the present embodiment, power subsystem 121 selects battery pack.
Sending part 13 is instructed to send the command signal corresponding with the rotating speed of the output of direct current generator 11 or the value of torque.
The rotating speed or torque of the detection output of direct current generator 11 of output transducer 14 simultaneously export corresponding output feedback signal.
Output feedback signal is received by controller 15.
The line current value of the brush lead-out wire of the detection direct current generator 11 of current sensor 20, and it is anti-to export corresponding electric current
Feedback signal.Current feedback signal is received by controller 15.
Controller 15 is according to the command signal of instruction sending part 13, the output feedback signal and electric current of output transducer 14
The current feedback signal of sensor 20 calculates the operation control signal 16 and motor control signal 17 of driver.
Driver 18 enters working condition in the case where operation control signal 16 is controlled, and produces drive according to motor control signal 17
The drive signal that dynamic chopper 19 works.
It is controllable that constant voltage DC electricity is converted to average voltage by chopper 19 under the drive signal effect that driver 19 is sent
Direct current and be supplied to direct current generator 11.Chopper 19 is single tube chopper.Single tube chopper is buck chopper, boosts and cut
Ripple device or buck-boost chopper.In the present embodiment, chopper 19 is buck chopper.
Chopper 19 has and the one-to-one copped wave unit 191 of j brush in one of brush group.Each copped wave
Unit 191 has a power switch pipe and the diode being connected with the power switch pipe differential concatenation, jointly to corresponding
Brush provides line current.
Power switch pipe is the power switch pipe of full-control type, can be using electric power field-effect transistor, the brilliant lock of gate electrode capable of switching off
In pipe, integrated gate commutated thyristor, insulated gate bipolar transistor, electric power bipolar transistor and door pole stream-exchanging thyristor
Any one.In the present embodiment, power switch pipe is electric power field-effect transistor.
When the rated current of the lead-out wire of brush is I1, the rated current of direct current generator 11 is INWhen, armature winding branch road
1121 number 2j meets following conditions：J ＞ IN÷I1, j is the positive integer not less than 2.
The effect of embodiment and effect
The direct current drive drive device and electrical equipment provided according to the present invention, because direct current generator has 2j mutually
It is independent and be made up of m winding armature winding branch road, be connected with winding 2j × m commutator segment, be connected with chopper
And 2j separate brushes being in contact with commutator segment, chopper is single tube chopper, chopper has j mutually solely
Vertical copped wave unit, dc source includes j separate power subsystems, each power subsystem and copped wave unit, one
Individual brush is connected one to one, and pair armature winding branch road being connected with the brush is powered, so each power subsystem
Output current is smaller for dc source total current, the connecting line, connecting line between power subsystem and chopper and electricity
The connector of the connector of source unit, connecting line and chopper, the requirement to contact resistance and insulation is relatively low, not only reduces life
The difficulty and cost of production, also contribute to the reliability and security of system.
The output current of each copped wave unit is separate, non-interfering, and the output current of chopper is all cuts
The linear superposition of the output current of ripple unit, so the electric current of chopper can linearly be increased by increasing the number of copped wave unit
Plus, the ripe control algolithm of original chopper circuit and the ripe manufacturing technology of direct current generator are not only remained, without considering simultaneously
Join the requirement to power switch pipe consistency of performance in equal Flow Technique, it is to avoid choose one carefully from substantial amounts of power switch pipe
The consuming for a large amount of manpower and financial resources that the high switch element of cause property is brought.
In addition, the direct current drive drive device of the present invention can break the external monopolization for great current drive device and envelope
Lock so that the direct current drive drive device can not only replace the fuel oil hair that pollution is big, toggle speed is slow and energy utilization rate is low
Motivation and applied at present can not using motor heavy-duty engine on, such as truck, bull-dozer, excavator heavy-duty engine etc.,
It can also be applied to need in military affairs on the electronic battlebus, electronic warship and electric drive aircraft carrier of more high current, realize low
Press the production domesticization of the direct current drive drive device of high current.And compared with AC motor drives, systematic function is more
It is superior.
In addition, do not need regenerative braking performance loop in the environment of, the single tube chopper that the present embodiment is used relative to
Half-bridge and full-bridge chopper have a more succinct circuit, less device, the advantages of higher reliability and lower cost.
Therefore, the direct current drive drive device and electrical equipment of the present embodiment have structure design simple, reasonable, cost
Low, caloric value is small, stable work in work, safe and reliable, the advantages of service life is long.
In addition, when power subsystem is battery pack, the battery cell in battery pack can not need parallel technology, only adopt
Requirement can be met with serial connection technology, the battery balanced problem produced after multiple battery cells parallel connections is eliminated, also eliminates to subtract
The inconsistency of small multiple battery cells and the expense produced.In terms of power supply, by multiple relatively small capacity series batteries
The connection in series-parallel battery pack of single Large Copacity is instead of, in the case of battery cell quantity identical, battery is reduced due to simultaneously
Overall performance decay, improves energy density, power, performance, durability and security caused by connection, can be electrical equipment
Continuation of the journey and performance provide more preferable ensure.
In addition, in the above-described embodiments, the line current value of the lead-out wire of current sensor detection brush, but it is used as the present invention
Direct current drive drive device and electrical equipment, current sensor also can detect motor line current value.
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (8)
1. a kind of direct current drive drive device, is arranged in electrical equipment, for driving the electrical equipment, including：
Direct current generator, with rated voltage and rated current；
Dc source, with the voltage corresponding with the rated voltage, corresponding with the rated current for providing is straight
Stream electricity；
Sending part is instructed, the command signal corresponding with the rotating speed or the value of torque that the direct current generator is exported is sent；
Output transducer, detects rotating speed or the torque of the direct current generator output, and sends corresponding output feedback signal；
Controller, calculates according to the command signal and the output feedback signal and exports operation control signal and motor control
Signal processed；
Driver, enters working condition or halted state, in the operating condition according to institute under the operation control signal effect
State motor control signal and produce drive signal；
Chopper, is converted to the controllable direct current of voltage by the direct current in the presence of the drive signal and is supplied to institute
State direct current generator,
It is characterized in that：
Wherein, the direct current generator have 2j armature winding branch roads that are separate and being made up of m winding and it is described around
2j × m commutator segment of group connection, 2j for being connected with the chopper and being in contact with the commutator segment are separate
Brush,
The chopper is single tube chopper, and the chopper has j separate copped wave units,
The dc source includes power subsystems separate j, each power subsystem and copped wave unit,
One brush is connected one to one, and pair armature winding branch road being connected with the brush is powered,
The j and the m are the positive integer not less than 2.
2. direct current drive drive device according to claim 1, it is characterised in that：
Wherein, the single tube chopper be buck chopper, boost chopper or buck-boost chopper,
When the single tube chopper is buck chopper, each copped wave unit contain a power switch pipe and with this
The diode of power switch pipe differential concatenation connection, line current is provided to the corresponding brush.
3. direct current drive drive device according to claim 1, it is characterised in that：
Wherein, when the rated current of the lead-out wire of the brush is I1, the rated current of the direct current generator is INWhen, institute
The number 2j for stating armature winding branch road meets following conditions：
J ＞ IN÷I1。
The j is the positive integer not less than 2.
4. direct current drive drive device according to claim 1, it is characterised in that：
Wherein, the connected mode of the armature winding is lap winding,
The excitation mode of the main pole of the direct current generator is permanent magnetism, separate excitation, series excitation, shunt excitation or compound excitation.
5. direct current drive drive device according to claim 1, it is characterised in that：
Wherein, the power subsystem is the rectifier power source obtained after battery pack or the rectified filtering of AC power,
The battery pack is made up of at least one battery cell.
6. direct current drive drive device according to claim 1, it is characterised in that：
Wherein, the chopper be made up of at least one SPM or comprising multiple power switch pipes,
The power switch pipe is electric power field-effect transistor, gate level turn-off thyristor, integrated gate commutated thyristor, insulation
Any one in grid bipolar transistor, electric power bipolar transistor and door pole stream-exchanging thyristor.
7. direct current drive drive device according to claim 1, it is characterised in that also include：
Current sensor,
Wherein, the current sensor detects the line current value of the lead-out wire of the brush, and sends corresponding current feedback letter
Number；
The controller calculates according to the command signal, the current feedback signal and the output feedback signal and exports fortune
Row control signal and motor control signal.
8. a kind of electrical equipment, it is characterised in that including：
Direct current drive drive device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304722.XA CN107086831B (en) | 2017-05-03 | 2017-05-03 | Direct current drive driving device and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710304722.XA CN107086831B (en) | 2017-05-03 | 2017-05-03 | Direct current drive driving device and electrical equipment |
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| CN107086831B CN107086831B (en) | 2019-04-30 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018121548A1 (en) * | 2016-12-28 | 2018-07-05 | 上海理工大学 | Electric drive apparatus, chopper, dc motor, and electric device |
| WO2019223253A1 (en) * | 2018-05-22 | 2019-11-28 | 上海理工大学 | Direct current motor |
| CN110518771A (en) * | 2018-05-22 | 2019-11-29 | 上海理工大学 | A kind of string shunt DC machine |
| CN110518772A (en) * | 2018-05-22 | 2019-11-29 | 上海理工大学 | A kind of and series DC machine |
| CN110518770A (en) * | 2018-05-22 | 2019-11-29 | 上海理工大学 | A kind of series DC machine |
| CN110518769A (en) * | 2018-05-22 | 2019-11-29 | 上海理工大学 | A kind of shunt DC machine |
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