CN106911272B - Direct current drive driving device and electrical equipment - Google Patents
Direct current drive driving device and electrical equipment Download PDFInfo
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- CN106911272B CN106911272B CN201710304282.8A CN201710304282A CN106911272B CN 106911272 B CN106911272 B CN 106911272B CN 201710304282 A CN201710304282 A CN 201710304282A CN 106911272 B CN106911272 B CN 106911272B
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- direct current
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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
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- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The present invention provides a kind of direct current drive driving device and electrical equipments.Direct current drive driving device provided by the invention, for driving electrical equipment, comprising: direct current generator；DC voltage；Instruction sending part；Driver；And chopper, wherein, direct current generator has 2j armature winding branches that are mutually indepedent and being made of m winding, 2j × m commutator segment being connect with winding, the 2j mutually independent brushes for being connected with chopper and being in contact with commutator segment, chopper is half-bridge chopper, chopper has j mutually independent copped wave units, the current output line of each copped wave unit connects one to one with a brush, the freewheeling diode that each copped wave unit contains w copped wave bridge arm in parallel and is connected in inverse parallel with w copped wave bridge arm, line current is provided to corresponding brush, copped wave bridge arm includes the power switch tube of two series connections, j and m is the positive integer not less than 2, the positive integer that w is 2~4.
Description
Technical field
The invention belongs to direct current generator field, in particular to a kind of direct current drive driving device and include direct current drive drive
The electrical equipment of dynamic device.
Background technique
With the increase of major city haze number of days and duration, country is more next to the exhaust emissions management of fuel oil equipment
It is stringenter；In addition, fuel oil equipment is forbidden to use in closed office work environment；In addition, this energy of petroleum is not
It is reproducible, exhaustion will be faced after decades.Therefore, the electrical equipment such as electric car, electri forklift etc. by electricity as the energy
Favor of the electrical equipment increasingly by manufacturer and consumer.It not only pollute it is small, can use renewable energy offer
Electric energy, and compared with fuel oil equipment, it also has, and energy utilization rate is high, structure is simple, noise is small, dynamic property is good and portable
The advantages that property is high.Under petroleum resources increasingly intense situation, electric driver is greatly developed, especially high-power electric drive
For example electronic battlebus of device, electronic warship, Electric aircraft and electric drive aircraft carrier etc. have national defense safety far-reaching
Meaning.
Due to alternating current generator, especially asynchronous machine, simple, reliable for operation, light-weight, cheap with structure is excellent
Point, so it is widely used.But that there are detent torques is small for alternating current generator, starting current is very big, smooth speed control
The disadvantages of difference, vibration and noise are big and control algolithm is complicated.Even if can not still prevent motor using best control algolithm
The presence of middle higher hamonic wave causes the alternating current generator performance in starting, braking, speed regulation and low speed to be all inferior to direct current generator.Therefore,
It is still green to the very high occasion of the performance requirement of electrical equipment, such as domestic variable frequency air-conditioning, lifting elevator, electric car etc.
It looks in the electrical equipment for being equipped with direct current generator.
In direct current drive driving device shown in Fig. 2, the requirement to power switch tube is extremely harsh, is working normally
When, power switch tube must work below maximum operation temperature, maximum operating currenbt and maximum working voltage, once it is more than to appoint
It anticipates a condition, power switch tube will be damaged；In addition, when the variation of the component parameter in electronic circuit is beyond normal work
It is electronic that when range, overvoltage or overcurrent may be generated in power switch tube, power switch tube is caused to be damaged and then is caused
Equipment fault；In addition, aging, maximum operation temperature, maximum operating currenbt occur for power switch tube with the increase of working time
All decreased with performance indicators such as maximum working voltages, easily generation power switch tube damage cause chopper global failure or
The failures such as short circuit, and then cause electrical equipment failure even safety accident.
High power DC Vidacare corp and electrical equipment, especially low-voltage, high-current direct current drive driving device and electricity
Dynamic equipment, the controller or chopper for needing continuous work electric current very big, and relevant technology and product are by individual countries and public affairs
Department's control and monopolization, cause price very high, and high-performance electric machine controller or the chopper output that can be purchased in the market
Current value also be only below a kiloampere.After all, the parallel current-sharing of manufacture level, multiple power switch tubes is generated
Many reasons such as technology, control circuit and algorithm excessively complexity seriously restrict and affect the driving of low-voltage, high-current direct current drive
The development of device and electrical equipment.
To sum up, these problems have seriously affected high-performance high-power electric equipment, including the electronic of low-voltage, high-current
The development of electronic battlebus, electronic warship, Electric aircraft and electric drive aircraft carrier in vehicle, electric ship or even national defence.
Summary of the invention
The present invention is to carry out in order to solve the above problem, and by providing, a kind of copped wave bridge arm is independent, exports electric current mutually not
It influences, realizes the full decoupled chopper circuit of electric current, comprising more brushed DC motors and comprising the chopper circuit and how electric this is
The direct current drive driving device and electrical equipment of brushless motor.
To achieve the goals above, present invention employs following technical proposals:
<structure one>
The present invention provides a kind of direct current drive driving devices, are arranged in electrical equipment, for driving electrical equipment, wrap
Include: direct current generator has voltage rating and rated current；DC voltage has voltage corresponding with voltage rating, is used for
Direct current corresponding with rated current is provided；Instruction sending part sends the value phase of the revolving speed exported with direct current generator or torque
Corresponding command signal；Driver generates driving signal according to command signal；And chopper, under the action of driving signal
Direct current is converted into the controllable direct current of voltage and is supplied to direct current generator, it is characterised in that: wherein, direct current generator has 2j
A mutually indepedent and the armature winding branch being made of m winding, the 2j × m commutator segment and chopper that are connect with winding
The 2j mutually independent brushes for being connected and being in contact with commutator segment, chopper are half-bridge chopper, and chopper has j
Mutually independent copped wave unit, the current output line of each copped wave unit connect one to one with a brush, each copped wave list
Member is containing w copped wave bridge arm in parallel and the freewheeling diode being connected in inverse parallel with w copped wave bridge arm, to corresponding brush
Line current is provided, copped wave bridge arm includes the power switch tube of two series connections, and j and m are the positive integer not less than 2, w 2
~4 positive integer.
Direct current drive driving device provided by the invention can also have the feature that, further includes: controller, wherein
Controller exports operation control signal and motor control signal according to command signal, and driver controls under signal function in operation
Into working condition or halted state, driving signal is generated according to motor control signal in the operating condition.
Direct current drive driving device provided by the invention can also have the feature that, further includes: output transducer,
In, output transducer detects revolving speed or the torque of direct current generator output, and send corresponding output feedback signal, controller according to
Command signal and output feedback signal output operation control signal and motor control signal.
Direct current drive driving device provided by the invention can also have the feature that, further includes: current sensor,
In, current sensor detects the current value of the lead-out wire of brush, and sends corresponding current feedback signal, and controller is according to instruction
Signal, current feedback signal and output feedback signal calculate and export operation control signal and motor control signal.
Direct current drive driving device provided by the invention can also have the following features: wherein, when brush lead-out wire
Rated current is I1, the rated current of direct current generator is INWhen, the number 2j of armature winding branch meets following conditions: j > IN÷
I1, j is the positive integer not less than 2.
Direct current drive driving device provided by the invention can also have the following features: wherein, and DC power supply is battery
The DC power supply obtained after group or the rectified filtering of AC power source, battery pack are made of at least one battery cell.
Direct current drive driving device provided by the invention can also have the following features: wherein, the connection of armature winding
Mode is lap winding, and the excitation mode of the main pole of direct current generator is permanent magnetism, separate excitation, series excitation, shunt excitation or compound excitation.
Direct current drive driving device provided by the invention can also have the following features: wherein, and armature winding branch is only
It is vertical to be mounted at least one armature core of direct current generator, chopper be made of at least one intelligent power module or
Multiple power switch tubes are contained, power switch tube is electric power field effect transistor, gate level turn-off thyristor, integral gate change
Flow any one in thyristor, insulated gate bipolar transistor, electric power bipolar junction transistor and door pole stream-exchanging thyristor.
<structure two>
Further, the present invention also provides a kind of electrical equipments containing above-mentioned direct current drive driving device.
The action and effect of invention
The direct current drive driving device and electrical equipment provided according to the present invention, since direct current generator has 2j a mutually
It is independent and be made of m winding armature winding branch, connect with winding 2j × m commutator segment, be connected with chopper
And 2j mutually independent brushes being in contact with commutator segment, chopper are half-bridge chopper, and chopper has j a mutually solely
Vertical copped wave unit, the current output line of each copped wave unit connect one to one with a brush, and each copped wave unit contains w
The copped wave bridge arm of a parallel connection and the freewheeling diode being connected in inverse parallel with w copped wave bridge arm provide line to corresponding brush
Electric current, copped wave bridge arm includes the power switch tube of two series connections, therefore the line current of any two copped wave unit output is
Independently of each other, non-interfering, so that the output electric current of chopper can be linear by increasing the number of copped wave unit
Increase, theoretically can achieve infinity.Not only remain the mature control algolithm of original chopper and the maturation of direct current generator
Technology, and the requirement to power switch tube consistency of performance is reduced, big electricity can be met using common power switch tube
The requirement of stream avoids a large amount of manpowers brought by the high switch element of consistency of choosing carefully from a large amount of power switch tube
With the consuming of financial resources.
Since each copped wave unit contains w (w 2,3 or 4) a copped wave bridge arm being connected in parallel with each other, in the specified of motor
In the case that electric current is certain, relative to the copped wave unit only containing a copped wave bridge arm, this structure can be to a certain extent
Increase the output electric current of each copped wave unit, and then the number j of armature winding branch in direct current generator can be reduced accordingly, no
Brush number is only reduced, reduces the number of power lines of motor and the quantity of copped wave unit output line, alleviates maintenance and dimension
Difficulty is protected, but also suitably reduces the production cost of direct current generator and chopper circuit.
In addition, direct current drive driving device of the invention can break external monopolization and envelope for great current drive device
Lock, so that the direct current drive driving device can not only replace, pollution is big, the slow fuel oil hair low with energy utilization rate of starting speed
Motivation and be applied at present can not be using on the heavy-duty engine of motor, such as truck, bull-dozer, excavator heavy-duty engine etc.,
It can also be applied on the electronic battlebus, electronic warship and electric drive aircraft carrier that need more high current in military affairs, realize low
Press the production domesticization of the direct current drive driving device of high current.And compared with AC motor drives, system performance is more
It is superior.
Therefore, direct current drive driving device of the invention has structure design simple, reasonable, and at low cost, calorific value is small, work
It is stable, safe and reliable to make performance, the advantages that long service life.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the direct current drive driving device of the embodiment of the present invention；And
Fig. 2 is the electrical block diagram of heavy DC Vidacare corp in the prior art.
Specific embodiment
Illustrate a specific embodiment of the invention below in conjunction with attached drawing.
Direct current drive driving device 10 is arranged in electrical equipment such as electric tool, four-axle aircraft, electric car, 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 driving device in the present embodiment.
As shown in Figure 1, direct current drive driving device 10 include direct current generator 11, it is DC power supply 12, instruction sending part 13, defeated
Sensor 14, controller 15, driver 18, chopper 19 and current sensor 20 out.
Direct current generator 11 has voltage rating 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 armature 112 provides operating fields.The excitation mode of main pole is permanent magnetism, separate excitation, series excitation, shunt excitation
Or compound excitation.If main pole is separate excitation excitation mode, the excitation winding of separate excitation is individually control, the control phase with armature winding
It is mutually independent.If main pole is shunt excitation excitation mode, the excitation winding of shunt excitation is by individual chopper and and DC power supply
The identical DC power supply of 12 voltages and individual driving unit 191 are powered.In the present embodiment, main pole 111 is using series excitation
Excitation mode.
Armature 112 includes rotor core (not shown), 2j armature winding branch 1121,2j × m commutator segment (figure
In do not show) and 2 groups of brush groups 1122.
Armature winding branch 1121 is independently mounted on the rotor core of armature 112.Armature winding branch 1121 is by m
It is wrapped in composed by the winding on rotor core, the positive integer that m is 2 or more.The connection of winding in armature winding branch 1121
Mode is lap winding.In normal work, the electric current of all armature winding branches is independent of each other, independently of each other.
2 groups of brush groups 1122 are divided into two groups according to the polarity difference of main pole 111 corresponding to its spatial position, and respectively
Two groups of power supply lines of direct current generator 11 are connected, and are in contact with the commutator segment of commutator.Each brush group includes j mutually only
Vertical brush.2j brush is evenly distributed on the commutator of direct current generator being made of commutator segment, with direct current generator main pole
Position it is corresponding, each brush can at least be in contact with a commutator segment.Circumferencial direction of the one group of brush therein along motor
It is uniformly distributed, the spatial position of another group of brush is mounted among different groups of adjacent two brushes.In the present embodiment, brush
Using narrow brush, it is dimensioned slightly smaller than the size of commutator segment.In the present embodiment, each brush can connect at least one commutator segment
Touching.
DC power supply 12 has voltage corresponding with voltage rating, for providing direct current corresponding with rated current
Electricity.DC power supply 12 is the DC power supply obtained after battery pack or the rectified filtering of AC power source, in the present embodiment, direct current
Battery pack is selected in source 12.
Instruction sending part 13 sends command signal corresponding with the value of revolving speed or torque that direct current generator 11 exports.
Output transducer 14 detects the revolving speed that direct current generator 11 exports or torque and exports corresponding output feedback signal.
Output feedback signal is received by controller 15.
Current sensor 20 detects the line current value of brush lead-out wire, and exports corresponding current feedback signal.Electric 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 of output transducer 14 and electric current
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 controls, and generates drive according to motor control signal 17
The driving signal that dynamic chopper 19 works.
It is controllable that constant voltage DC electricity is converted to average voltage under the driving signal effect that driver 18 issues by chopper 19
Direct current and be supplied to direct current generator 11.In the present embodiment, chopper 19 is half-bridge chopper.
Chopper 19 has the one-to-one copped wave unit 191 of j brush with one of brush group.Each copped wave list
Member 191 is containing w copped wave bridge arm 1911 and two freewheeling diodes being connected in inverse parallel with the copped wave bridge arm 1911, jointly
Line current is provided to corresponding brush.The positive integer that w is 2~4, in the present embodiment, w 2.
Copped wave bridge arm 1911 contains the upper bridge arm power switch tube and lower bridge arm power switch tube being connected in series with each other.?
That is 1 copped wave unit 191 that 4 power switch tubes and 2 diodes are constituted provides line electricity to the brush connecting with it
Stream.
Upper bridge arm power switch tube and lower bridge arm power switch tube predetermined maximum continuous work electric current having the same, it is
One important parameter of power switch tube, only below this current value when, power switch tube is possible to stable operation, such as
Fruit operating current is more than this current value, and power switch tube will be breakdown due to overcurrent, to damage.In view of it is various not
With the influence of working environment, in general, the rated current of the lead-out wire of brush be taken as the 0.4w of maximum continuous work electric current~
0.8w times.
Upper bridge arm power switch tube or lower bridge arm power switch tube are the power switch tube of full-control type, and field of electric force can be used
Effect transistor, gate level turn-off thyristor, integrated gate commutated thyristor, insulated gate bipolar transistor, electric power are ambipolar
Any one in transistor and door pole stream-exchanging thyristor.In the present embodiment, which is electric power field effect transistor
Pipe.
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
1121 number 2j meets following conditions: j > IN÷I1, j is the positive integer not less than 2.
The action and effect of embodiment
According to direct current drive driving device provided in this embodiment and electrical equipment, since direct current generator has 2j phase
It is mutually independent and be made of m winding armature winding branch, connect with winding 2j × m commutator segment, be connected with chopper
The 2j mutually independent brushes for connecing and being in contact with commutator segment, chopper are half-bridge chopper, and chopper has j a mutually
Independent copped wave unit, the current output line of each copped wave unit connect one to one with a brush, and each copped wave unit contains
The freewheeling diode for having w copped wave bridge arm in parallel and being connected in inverse parallel with w copped wave bridge arm, provides to corresponding brush
Line current, power switch tubes of the copped wave bridge arm comprising two series connections, therefore the line current of any two copped wave unit output
It is mutually indepedent, non-interfering, so that the output electric current of chopper can pass through the number line of increase copped wave unit
Property increase, theoretically can achieve infinity.Not only remain original chopper mature control algolithm and direct current generator at
Cooking technique, and the requirement to power switch tube consistency of performance is reduced, it can be met greatly using common power switch tube
The requirement of electric current avoids a large amount of people brought by the high switch element of consistency that choose carefully from a large amount of power switch tube
The consuming of power and financial resources.
Since each copped wave unit contains w (w 2,3 or 4) a copped wave bridge arm being connected in parallel with each other, in the specified of motor
In the case that electric current is certain, relative to the copped wave unit only containing a copped wave bridge arm, this structure can be to a certain extent
Increase the output electric current of each copped wave unit, and then the number j of armature winding branch in direct current generator can be reduced accordingly, no
Brush number is only reduced, reduces the number of power lines of motor and the quantity of copped wave unit output line, alleviates maintenance and dimension
Difficulty is protected, but also suitably reduces the production cost of direct current generator and chopper circuit.
In addition, the direct current drive driving device of the present embodiment can break the external monopolization for great current drive device and
Block, so that the direct current drive driving device can not only replace, pollution is big, starts the slow fuel oil low with energy utilization rate of speed
Engine and be applied at present can not be using on the heavy-duty engine of motor, such as truck, bull-dozer, excavator heavy-duty engine
Deng, additionally it is possible to applied on the electronic battlebus, electronic warship and electric drive aircraft carrier that need more high current in military affairs, realize
The production domesticization of the direct current drive driving device of low-voltage, high-current.And compared with AC motor drives, system performance is more
Add superior.
In addition, the half-bridge chopper that the present embodiment uses is relative to full-bridge copped wave utensil under irreversible working environment
There is the advantages that more succinct circuit, less device, higher reliability and lower cost.
Therefore, the direct current drive driving device of the present embodiment has structure design simple, reasonable, and at low cost, calorific value is small,
It is stable working performance, safe and reliable, the advantages that long service life.
In the above-described embodiments, direct current drive driving device includes output transducer, current sensor and controller, but
Above three can not included as direct current drive driving device of the invention, directly generate instruction letter using instruction sending part
Number, driver generates driving signal according to command signal；Or controller is only set, controller is exported according to command signal and is run
Signal and motor control signal are controlled, driver enters working condition or halted state in the case where operation controls signal function；Or
It is setting output transducer and controller, output transducer detects revolving speed or the torque of direct current generator output, and sends correspondence
Output feedback signal, controller is according to command signal and output feedback signal output operation control signal and motor control
Signal.
In the above-described embodiments, brush is narrow brush, but as brush of the invention, is also possible to wide brush.
In addition, in the above-described embodiments, current sensor detects the line current value of the lead-out wire of brush, but as the present invention
Direct current drive driving device and electrical equipment, current sensor also can detect motor line current value.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (9)
1. a kind of direct current drive driving device is arranged in electrical equipment, for driving the electrical equipment, comprising:
Direct current generator has voltage rating and rated current；
DC power supply has voltage corresponding with the voltage rating, corresponding with the rated current straight for providing
Galvanic electricity；
Instruction sending part sends command signal corresponding with the value of revolving speed or torque that the direct current generator exports；
Driver generates driving signal according to described instruction signal；And
The direct current is converted to the controllable direct current of voltage under the action of the driving signal and is supplied to institute by chopper
Direct current generator is stated,
It is characterized by:
Wherein, the direct current generator have 2j mutually indepedent and the armature winding branch that is made 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 mutually indepedent
Brush,
The chopper is half-bridge chopper, and the chopper has j mutually independent copped wave units,
The current output line of each copped wave unit connects one to one with a brush,
Each copped wave unit contains w copped wave bridge arm in parallel and is connected in inverse parallel with the w copped wave bridge arm
Freewheeling diode provides line current to the corresponding brush,
The copped wave bridge arm includes the power switch tube of two series connections,
The j and m is the positive integer not less than 2, the positive integer that the w is 2~4.
2. direct current drive driving device according to claim 1, which is characterized in that further include:
Controller,
Wherein, the controller exports operation control signal and motor control signal according to described instruction signal,
The driver enters working condition or halted state in the case where the operation controls signal function, in the operating condition basis
The motor control signal generates the driving signal.
3. direct current drive driving device according to claim 2, which is characterized in that further include:
Output transducer,
Wherein, the output transducer detects revolving speed or the torque of the direct current generator output, and sends corresponding output feedback
Signal,
The controller is according to described instruction signal and output feedback signal output operation control signal and motor control
Signal processed.
4. direct current drive driving device according to claim 3, which is characterized in that further include:
Current sensor,
Wherein, the current sensor detects the current value of the lead-out wire of the brush, and sends corresponding current feedback signal,
The controller calculates according to described instruction signal, the current feedback signal and the output feedback signal and exports fortune
Row control signal and motor control signal.
5. direct current drive driving device according to claim 1, it is characterised in that:
Wherein, when the rated current of the brush lead-out wire is I1, the rated current of the direct current generator is INWhen, it is described
The number 2j of armature winding branch meets following conditions:
J > IN÷I1,
The j is the positive integer not less than 2.
6. direct current drive driving device according to claim 1, it is characterised in that:
Wherein, the DC power supply is the DC power supply obtained after battery pack or the rectified filtering of AC power source,
The battery pack is made of at least one battery cell.
7. direct current drive driving device according to claim 1, it is characterised in that:
Wherein, the connection type 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.
8. direct current drive driving device according to claim 1, it is characterised in that:
Wherein, the armature winding branch is independently mounted at least one armature core of the direct current generator,
The chopper is made of at least one intelligent power module or contains multiple power switch tubes,
The power switch tube is electric power field effect transistor, gate level turn-off thyristor, integrated gate commutated thyristor, insulation
Any one in grid bipolar junction transistor, electric power bipolar junction transistor and door pole stream-exchanging thyristor.
9. a kind of electrical equipment characterized by comprising
Direct current drive driving device according to any one of claims 1 to 8.
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| CN201710304282.8A CN106911272B (en) | 2017-05-03 | 2017-05-03 | Direct current drive driving device and electrical equipment |
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| US10622876B2 (en) | 2016-12-28 | 2020-04-14 | University Of Shanghai For Science And Technology | Electric drive apparatus, chopper, DC motor, and electric device |
| CN108075699B (en) * | 2017-12-29 | 2024-02-20 | 上海沪工焊接集团股份有限公司 | Motor control method and motor controller |
| CN111313777A (en) * | 2018-11-23 | 2020-06-19 | 上海理工大学 | Permanent magnet type DC motor driving device |
| CN111313776A (en) * | 2018-11-23 | 2020-06-19 | 上海理工大学 | Permanent magnet type DC motor driving device |
| WO2020103954A1 (en) * | 2018-11-23 | 2020-05-28 | 上海理工大学 | Permanent magnet direct-current motor driving apparatus and electric equipment |
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| CN106911272A (en) | 2017-06-30 |
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