CN107863866A - A kind of great-power electromagnetic buncher - Google Patents
A kind of great-power electromagnetic buncher Download PDFInfo
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- CN107863866A CN107863866A CN201711429438.1A CN201711429438A CN107863866A CN 107863866 A CN107863866 A CN 107863866A CN 201711429438 A CN201711429438 A CN 201711429438A CN 107863866 A CN107863866 A CN 107863866A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 239000000523 sample Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 24
- 238000009833 condensation Methods 0.000 claims description 20
- 230000005611 electricity Effects 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 19
- 230000008859 change Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 7
- 238000009792 diffusion process Methods 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000005272 metallurgy Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
Abstract
The invention discloses a kind of great-power electromagnetic buncher, including motor housing, is provided with inside motor housing and along its length aggressive device and slave unit, and aggressive device is made up of the stator module not rotated and the internal rotor component of rotation；Slave unit includes outer rotor component, the internal rotor component wherein rotated includes the first internal rotor and the second internal rotor, running clearance is respectively provided between first internal rotor and stator module, between the second internal rotor and outer rotor component, first internal rotor carries out electromagnetic coupled with stator module and transmits moment of torsion, and the second internal rotor carries out electromagnetic coupled with outer rotor component and transmits moment of torsion.The present invention is simple in construction, reliability is high, function easy to operate, that there is soft start, it can be adjusted simultaneously according to the output torque and rotating speed being actually needed to motor, reduce the operating current of motor, the effect of energy-conservation is realized, and the energy difference that the slip between outer rotor component and the second internal rotor is formed can be changed into electric energy and be delivered to power network input progress power compensation again, further improves energy-saving effect.
Description
Technical field
The present invention relates to motor, specifically a kind of great-power electromagnetic buncher.
Background technology
Pump, blower fan and compressor in the industries such as metallurgy, oil, chemical industry, electric power, cement building material, water utilities and machinery be present
And the high power load such as other machinery device, their prime mover are generally threephase asynchronous.The power of these devices
Typically all design by producing at full capacity and certain spare capacity is set, and the general all very little works of real work are in the state of producing at full capacity.
Traditional device is all to connect water pump, blower fan and compressor by shaft coupling with common motor, due to common
Motor does not have a speed regulation capacity, and motor and water pump are rotated with rated speed during work, pass through the valve or damper of pump
Flow restriction control is carried out, the energy-saving efficiency of flow restriction control is very low, causes the real work energy consumption of these devices to be higher than ideal operation
Energy consumption（All devices reach the energy consumption of theoretical highest operating efficiency）.
Effective solution is exactly to carry out speed governing to motor, is reached according to the rotating speed for being actually needed change motor at scene
The needs at scene, while play the dual purpose of regulation user's request and energy-conservation.Existing main speed governing means have speed-regulating type liquid
Mechanical couple, frequency converter and speed-adjusting-type permanent-magnet coupler etc..
Speed regulation type hydrodynamic coupler transmits moment of torsion using liquid as working media, and it has certain function of stepless speed regulation.
Fluid coupling speed governing has stepless speed regulation, does not change frequency of supply, reduces to start and impact and start load and do not produce harmonic wave
The advantages of pollution.But speed regulation type hydrodynamic coupler with efficiency it is low, with hydraulic oil pollution environment, use cost is higher and safeguards
The shortcomings that inconvenient, paying attention to today of energy-conserving and environment-protective, only a few users selection uses, has and be gradually backed out becoming for market
Gesture.
Frequency converter is to change network operation frequency using Power Electronic Technique to change the one of threephase asynchronous rotating speed
Kind speed adjusting technique.Frequency converter has the advantages that efficiency and adjusting speed accuracy height, speed governing respond fast and soft start and function, is controlling automatically
Field processed and electric machine speed regulation energy-saving field have a wide range of applications.But frequency converter has, and system complex, reliability be low, maintenance difficulties
Greatly, the shortcomings of operation and maintenance is costly, can produce harmonic pollution in electric power net, high to operating environment requirements and antijamming capability is weak,
The use of some users is limited, the particularly working environment such as some metallurgy, oil, chemical industry, electric power and cement building materials compares evil
Bad user.
Speed-adjusting-type permanent-magnet coupler is a kind of new speed adjusting technique to grow up in recent years, and it utilizes permanent magnetism and conductor phase
Torque is adjusted to induction force caused by motion and induction torque passing power and using the mode for adjusting magnetic flux.Speed-adjusting-type permanent-magnet
Coupler have efficiency is higher, simple and reliable for structure, operation and maintenance is low, do not produce harmonic pollution and strong antijamming capability it is excellent
Point.But low relative to its adjusting speed accuracy of frequency converter and response speed ratio frequency converter, this significantly limit it and is automatically controlling neck
The application in domain；Simultaneously speed-adjusting-type permanent-magnet coupler low speed operation when also have efficiency it is low and heating than it is more serious the defects of.Due to
Metallurgy, oil, chemical industry, electric power, cement building material, water utilities and some mechanical industry are required not very rotary speed precision and response speed
Height, therefore speed-adjusting-type permanent-magnet coupler obtains certain market and customer acceptance with its advantage.
With the development of society, energy-conserving and environment-protective are increasingly paid attention to by society, particularly electrical machine energy-saving field, according to statistics
Blower fan, water pump and the compressor power consumption of the industries such as whole nation metallurgy in 2016, oil, chemical industry, electric power, cement building material and water utilities surpass
3,000,000,000,000 kilowatt hours are crossed, are also up to 450,000,000,000 thousand with 15% node potentiality, the year node potentiality of blower fan, water pump and compressor
Watt-hour.But above-mentioned speed regulation type hydrodynamic coupler, frequency converter and speed-adjusting-type permanent-magnet coupler are because its respective limitation is difficult to
Fully meet the demand of user's electric machine speed regulation energy-conservation.
The content of the invention
The technical problems to be solved by the invention are, the shortcomings that for above prior art, propose a kind of great-power electromagnetic
Buncher, it is not only simple in structure, easy to operate, the also function with soft start can be to the output torque and rotating speed of motor
Be adjusted, reduce the operating current of motor, realize the effect of energy-conservation, and the energy difference conversion that speed discrepancy can be formed with
Power network is delivered to power network input with the electric energy of frequency same-phase and powered jointly to motor again, further realizes energy-conserving action.
In order to solve the above-mentioned technical problem, the technical scheme is that being accomplished by the following way：It is a kind of high-power
Electromagnetic adjustable speed motor, including motor housing, aggressive device and slave unit are provided with inside motor housing and along its length,
Aggressive device is made up of the stator module not rotated and the internal rotor component of rotation；Slave unit includes outer rotor component, wherein
The internal rotor component of rotation includes the first internal rotor and the second internal rotor, turns between the first internal rotor and stator module, in second
Running clearance is respectively provided between son and outer rotor component, the first internal rotor carries out electromagnetic coupled with stator module and transmits moment of torsion, the
Two internal rotors carry out electromagnetic coupled with outer rotor component and transmit moment of torsion.
The technical scheme that further limits of the present invention is：
Foregoing great-power electromagnetic buncher, stator module includes the stator core fixed with motor housing, along stator core
Length direction is arranged with stator coil, and stator coil is connected with external electrical network；
Internal rotor component includes driving shaft, and driving shaft is connected by bearing and motor housing, along driving shaft length direction according to
Secondary to be provided with the first internal rotor and the second internal rotor, the first internal rotor and the second internal rotor are cage rotor, the first internal rotor with
Stator core is corresponding, is powered by external electrical network to stator coil, and transmitting the internal rotor of torque drive first using electromagnetism coupling rotates,
Finally make driving shaft synchronous axial system.
Foregoing great-power electromagnetic buncher, outer rotor component include driven shaft, driven shaft by bearing and motor outside
Shell is fixed, and is provided with rotor core skeleton close to one end of the second internal rotor in driven shaft, rotor core skeleton is provided with and second
Outer rotor iron core corresponding to internal rotor, outer rotor coil is arranged with along outer rotor iron core length direction, the second internal rotor turns with outer
Electromagnetic coupled is carried out between sub- iron core, so as to drive driven shaft to rotate, outer rotor coil passes through the current collection that is arranged on driven shaft
Ring is connected with outer rotor winding wiring case.
Foregoing great-power electromagnetic buncher, the first internal rotor include being set on driving shaft and by multiple cold rolled silicon steels
Piece builds up certain thickness internal rotor iron core, and the first internal rotor is identical with the second inner rotor core, in two internal rotor iron cores
The insulation sliver that portion is interspersed with multiple slivers and is used cooperatively with sliver, each sliver is also cross the first internal rotor and second
Internal rotor, end ring conductor is provided with the both ends of sliver, by end ring conductor and sliver by two internal rotor iron cores be linked to be one it is whole
Body, sliver are arranged with the pre- taut band of sliver between two internal rotor iron cores.
Foregoing great-power electromagnetic buncher, the minimum range of axial direction between the first internal rotor and the second internal rotor
For L, and L dimension is more than 200mm, and driven shaft is provided with mounting hole close to one end of driving shaft, transition bearing, mistake are provided with mounting hole
The outer ring and driven shaft for crossing bearing coordinate, and inner ring coordinates with driving shaft；Multiple measuring temperature of bearing are provided with electromagnetic adjustable speed motor to pop one's head in,
Measure speed gearses are provided with driven shaft and are fixed on motor housing and are used for the holes probe for measuring rotating speed, in motor housing
Portion is provided with anti-condensation heater.
Foregoing great-power electromagnetic buncher, cooling system is provided with inside motor housing, cooling system is by interior circulation
Device and external circulating device composition, motor housing include base and are arranged on the case of base upper end, aggressive device and driven dress
Put and be respectively provided with the base；
External circulating device includes case, and case is L-shaped, and the blower fan for being used for placing blower fan is provided with along case length direction one end
Cover, multiple heat exchanger tubes are provided with along its length in casing interior, heat exchanger tube one end inside fan shroud with connecting, the other end and outside
Portion connects, and is located at chassis outer side in driving shaft and is provided with outer circulation blower fan, outer circulation blower fan is arranged on inside fan shroud；
Internal circulation apparatus includes the first blower fan of interior circulation, the second blower fan of interior circulation, in driving shaft close to one end of outer circulation blower fan
The first blower fan of circulation in setting, the second blower fan of interior circulation is provided with close to one end away from rotor core skeleton in driven shaft, actively
Axle is provided with multiple spline boss along its circumferencial direction, and the first internal rotor, the second internal rotor are provided with what is be engaged with spline boss
Groove, and air channel is provided between the first internal rotor, the second internal rotor and driving shaft, air vent is provided with iron core skeleton, is passed through
Air vent connects the second blower fan of interior circulation with air channel, and internal hot blast is inwardly circulated into the second blower fan by the first blower fan of interior circulation
Spread, then the second blower fan of interior circulation spreads hot blast to the heat exchanger tube of upper end, and what is passed through in heat exchange tube is outside low temperature
Wind, heat exchange is carried out using the temperature difference of interior exogenous wind, realizes the purpose of chassis interior cooling, wherein the second blower fan of interior circulation
Shaft power is designed as 2 times or more than more than 2 times of the shaft power of the first blower fan of interior circulation.
Foregoing great-power electromagnetic buncher, the control system of electromagnetic adjustable speed motor include master controller, are arranged on electricity
Outer rotor winding wiring case, feedback connection box, power network wiring case on machine shell, in feedback connection box and power network wiring case
Portion's circuit is first in parallel by wire, is then connected again with stator coil, between outer rotor winding wiring case and feedback connection box
Provided with main performance loop；
Main performance loop includes main circuit breaker, outer rotor side filter, outer rotor side convertor circuit, the stator being sequentially connected in series
Side convertor circuit, stator side filter, low-tension switch cabinet, step-up transformer and high-tension switch cabinet；
Accessed between outer rotor-side convertor circuit and outer rotor side filter for preventing electrical network low voltage from disturbing low voltage
Suppressor, outer rotor side convertor circuit and stator side convertor circuit are a pair of symmetrical pwm control circuits, can be realized controllable
Two-way admittance power supply；
Back work loop is additionally provided with outer rotor coil junction box side, back work loop is arranged in parallel with main performance loop,
Back work loop includes the auxiliary circuit breaker and resistance controller being sequentially connected in series with outer rotor winding wiring case；
Main circuit breaker, outer rotor side convertor circuit, low-tension switch cabinet, high-tension switch cabinet, auxiliary circuit breaker and resistance controller
Control terminal is connected with master controller, and master controller is connected with grid phase detector, so as to receive the phase signal of power network.
Foregoing great-power electromagnetic buncher, motor housing be provided with Rotating speed measring terminal box, transition bearing oiling window,
Measuring temperature of bearing junction box, outer rotor winding wiring case, coil temperature measuring junction box, anti-condensation heater junction box, feedback connection box,
Power network wiring case, stator coil temperature probe, outer rotor coil temperature probe, collector ring maintaining cover；
The Rotating speed measring terminal box, measuring temperature of bearing junction box, outer rotor winding wiring case, coil temperature measuring junction box, protection against the tide add
Hot device junction box, by wire respectively with holes probe, measuring temperature of bearing probe, collector ring, stator coil temperature probe, outer rotor
Coil temperature probe, anti-condensation heater, and the feedback port of above-described various detecting instruments is connected with master controller
Foregoing great-power electromagnetic buncher, the application method of the control system of electromagnetic adjustable speed motor are carried out according to the following steps：
Step 1：Electromagnetic adjustable speed motor starting-up method：First main circuit breaker, auxiliary circuit breaker and low-tension switch cabinet are disconnected, by protection against the tide
Heater is turned off after energization 10-15 minutes, and then power network wiring case is connected power network and is powered, and electric current is begun through in stator coil,
The induced field of power frequency change is set up in stator core, induced-current is also accordingly produced in sliver, in faradic effect
Under, driving shaft constantly accelerates, and rated speed is reached after 5-20s, and now output speed is 0；Then main circuit breaker and low pressure are opened
The switch closure of cabinet is closed, master controller controls the electric current of stator coil to be no more than by controlling the electric current in outer rotor coil
Its rated current, output speed is set to improve constantly untill reaching and meeting the rotating speed of technological requirement, while outer rotor coil
The electric energy that slip is sent becomes to arrive with line voltage, frequency and phase identical electric energy feedback by the conversion of main control loop
Stator coil；
Step 2：Electromagnetic adjustable speed motor enters the method for normal regulating；When user's request prompting rotating speed needs to improve, main control
Device controls the electric current of outer rotor coil to increase untill meeting needs by improving the arcing time factor of outer rotor side convertor circuit；When
When user's request prompting rotating speed needs to reduce, master controller controls outer rotor by reducing the arcing time factor of outer rotor side convertor circuit
The electric current of coil is decreased up to untill meeting needs, while the electric energy that outer rotor coil slip is sent passes through main control loop
Conversion becomes and line voltage, frequency and phase identical electric energy feedback to stator coil；
Step 3：When main circuit breaker, outer rotor side filter, outer rotor side convertor circuit, stator side convertor circuit, stator side filter
When the main control loop that ripple device, low-tension switch cabinet, step-up transformer and high-tension switch cabinet are formed is broken down, master controller is immediately
Control main circuit breaker and low-tension switch cabinet are switched off, and auxiliary circuit breaker is connected, and resistance controller is formed with outer rotor coil
Loop, resistance in main controller controls resistance controller regulating loop, so as to adjust the electric current of outer rotor coil, and then
The output speed and torque, the electric energy that now slip of outer rotor coil is sent for adjusting outer rotor coil pass through resistance controller
Resistance heating dissipates；
Step 4：Closing method：Master controller will control switching off for main circuit breaker, auxiliary circuit breaker and low-tension switch cabinet,
Then power network wiring case and power network disconnect, while control anti-condensation heater to be powered and keep the internal temperature and absolutely of electromagnetic adjustable speed motor
Edge.
The difference with the prior art of the technical program：
Aggressive device and slave unit be set in the electromagnetic adjustable speed motor in the technical program, passes through master controller during electric motor starting
The increase of the controlled current flow in outer rotor coil is controlled, the soft start of motor can be realized, then by adjusting outer rotor coil
Electric current incrementally increases electric current, is finally reached required output speed, reduce higher startup so as to be stepped up moment of torsion and rotating speed
The impact of Current on Grid and stator coil, reduce equipment and start to the interference of power network and the service life of extension device, and
And have the function that caloric value is small, operating efficiency is high, energy loss is small and energy-conservation in starting process；
By that output speed can be adjusted according to working condition requirement in actual mechanical process, so as to reduce the real work of motor
Electric current, and operating current is often far smaller than rated current, it is not only easy to operate, and power savings are notable, economize on
Electricity；
In motor work：When producing electric current between outer rotor coil and the second internal rotor, what the electromagnetic coupler was sent
Electricity can by outer rotor side convertor circuit, stator side convertor circuit and step-up transformer commutation inversion boost after with power network simultaneously
Powered to stator coil, can further reduce electric current and active power of the motor from power network power taking, play raising economize on electricity space
Effect.
The operating efficiency of speed governing part of the equipment of the present invention under any speed conditions exceedes and with output speed
Change little during change, while cooling system in the technical program, be made up of internal circulation apparatus and external circulating device, by interior
Circulate outer circulation between heat transfer, reduce the temperature of motor internal, cooling-down effect is notable, while in the technical program
Spline boss is set on driving shaft, and then air channel is set, can make have flowing inside aggressive device when driving shaft rotates
Air, substantial amounts of heat to be taken away, then acted with heat exchanger tube, carry out heat exchange, reduce internal temperature, cooling-down effect is obvious,
It is simple in construction, it is easy to operate, securely and reliably；
To sum up, the fractional energy savings of equipment of the invention and operating efficiency are compared to common electric machine, speed regulation type hydrodynamic coupler and speed governing
The operating efficiency of type permanent magnetic coupling is much higher, also more slightly higher than the operating efficiency of frequency converter.Because the operating efficiency of equipment is high,
Make the caloric value of the equipment of the present invention small.
The electromagnetic adjustable speed motor is simple in construction, reliability is high, manufacturing cost is low, and the technical program is by general mechanical structure
Composition, parts are few, suitable with common electric machine, fluid coupling and magnetic coupling, mechanical device belonged to, compared to thousands of
The frequency converter structure compared of individual parts up to ten thousand is simply too much, and corresponding reliability also greatly improves, while compares compared to current
Popular speed-adjusting-type permanent-magnet coupler, does not use expensive permanent-magnet material so that the cost of equipment substantially reduces.
And special oil circuit, water cooling or air cooling system are not needed, operation and maintenance expense is low.The device of the present invention exists
Working media or the cooling devices such as hydraulic oil, cooling water and cooling oil need not be used during use, it is not necessary to blower fan, water
The auxiliary equipment of pump and oil pump consumes energy, therefore cost of use of the present invention is low.Simultaneously the present invention should not as frequency converter periodically more
Change hydraulic oil when changing power component and also not safeguarded as fluid coupling, therefore the maintenance cost of the present invention is also very
It is low；
Strong antijamming capability, the generated output of control system of the invention only have within the 15% of motor general power, it is not necessary to change
Frequency device is equally related to the connection in series-parallel of several power components, and disturbing factor is less, and main power supply system does not change, immediately
There is external interference, influenceed to caused by system operation minimum；
When main control loop is broken down, main circuit breaker and low-tension switch cabinet are switched off, and auxiliary circuit breaker is connected, resistance
Adjuster forms loop with outer rotor coil, and controller controls resistance in resistance controller regulating loop, outer so as to adjust
The electric current of rotor coil, and then output speed and the torque of outer rotor coil are adjusted, rotating speed is gradually reduced, avoids generation from getting well
Security incident, improve the reliability and security of device；
Ability with soft start, overload protection and powered shutdown.When the motor and arrangements for speed regulation of the present invention start, control system
The electric current of outer rotor coil can gradually be increased, driven shaft moment of torsion is gradually increased, required moment of torsion is gradually increased and load turns
Speed, reach the effect of soft start, when the system is overloaded, the electric current that control system can reduce outer rotor coil plays protection system
Effect, when load break down when, control system can cut off the electric current of rotor coil, make output torque be 0, reach powered
The function of shutdown；
Simultaneously under specific technological requirement, the technical program can also control main performance loop, outer rotor coil reverse power supply,
Realize that external electrical network is connected with outer rotor coil, greatly increase the moment of torsion of electromagnetic adjustable speed motor, and actual speed can be surpassed
Cross the rated speed of motor.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the structural representation of outer rotor component in the present invention；
Fig. 3 is the side view of outer rotor component in the present invention；
Fig. 4 is the structural representation of internal rotor component in the present invention；
Fig. 5 is the radial cross-section of internal rotor component in the present invention；
Fig. 6 is the structural representation of center base of the present invention；
Fig. 7 is the structural representation of cooling system of the present invention；
Fig. 8 is the structural representation of control system in the present invention；
Fig. 9 is the structural representation of the present invention；
Wherein 1- motor housings, 101- bases, 102- cases, 103- fan shrouds, 2- stator modules, 3- internal rotor components, outside 4-
Rotor assembly, 5- slivers, 6- stator cores, 7- stator coils, 8- driving shafts, the internal rotors of 9- first, the internal rotors of 10- second, 11-
Driven shaft, 12- rotor core skeletons, 13- outer rotor iron cores, 14- outer rotor coils, 15- collector rings, 16- internal rotor iron cores,
17- end ring conductors, 18- mounting holes, 19- transition bearings, 20- measuring temperature of bearing probe, 21- measure speed gearses, 22- holes probes, 23-
Heat exchanger tube, 24- outer circulation blower fans, 25- the first blower fans of interior circulation, 26- the second blower fans of interior circulation, 27- spline boss, 28- grooves,
29- air channels, 30- air vents, 31- anti-condensation heaters, 32- master controllers, 33- outer rotor winding wiring casees, 34- feedback electrical connections
Case, 35- power network wiring casees, 36- main circuit breakers, 37- outer rotor side filters, 38- outer rotors side convertor circuit, 39- stator sides
Convertor circuit, 40- stator side filters, 41- low-tension switch cabinets, 42- step-up transformers, 43- high-tension switch cabinets, 44- voltages resist
Interference unit, 45- auxiliary circuit breakers, 46- resistance controllers, 47- grid phase detectors, 48- stator coil temperature probes, 49-
Rotating speed measring terminal box, 50- transition bearing oiling windows, 51- measuring temperature of bearing junction boxes, 52- coil temperature measuring junction boxes, 53- are moistureproof
Heater junction box, 54- outer rotor coil temperature probes, 55- collector ring maintaining covers, the pre- taut band of 56- slivers, 57- insulation are led
Bar.
Embodiment
The present invention is described in further detail below：Wherein electromagnetism coupling principle is known technology, outer rotor coil and
Stator coil and corresponding stator core, outer rotor iron core, internal rotor iron core, pwm control circuit are known technology；
Embodiment 1
A kind of great-power electromagnetic buncher that the present embodiment provides, it is provided with the inside of motor housing 1 and along its length master
Dynamic device and slave unit, aggressive device are made up of the stator module 2 not rotated and the internal rotor component 3 of rotation；Slave unit
Including outer rotor component 4, wherein the internal rotor component 3 rotated includes the first internal rotor 9 and the second internal rotor 10, the first internal rotor
Between 9 and stator module 2, running clearance is respectively provided between the second internal rotor 10 and outer rotor component 4, the first internal rotor 9 is with determining
Sub-component 2 carries out electromagnetic coupled and transmits moment of torsion, and the second internal rotor 10 carries out electromagnetic coupled with outer rotor component 4 and transmits moment of torsion.
Stator module 2 includes the stator core 6 fixed with motor housing 1, and stator is arranged with along the length direction of stator core 6
Coil 7, stator coil 7 are connected with external electrical network；
Internal rotor component 3 includes driving shaft 8, and driving shaft 8 is connected by bearing and motor housing 1, along the length side of driving shaft 8
To the first internal rotor 9 and the second internal rotor 10 is sequentially provided with, the first internal rotor 9 and the second internal rotor 10 are cage rotor, the
One internal rotor 9 is corresponding with stator core 6, is powered by external electrical network to stator coil 7, and torque drive the is transmitted using electromagnetism coupling
One internal rotor 9 rotates, and finally rotates driving shaft 8.
Outer rotor component 4 includes driven shaft 11, and driven shaft 11 is fixed by bearing and motor housing 1, leaned in driven shaft 11
One end of nearly second internal rotor 10 is provided with rotor core skeleton 12, and rotor core skeleton 12 is provided with corresponding with the second internal rotor 10
Outer rotor iron core 13, be arranged with outer rotor coil 14, the second internal rotor 10 and outer rotor along the length direction of outer rotor iron core 13
Electromagnetic coupled is carried out between iron core 13, so as to drive driven shaft 11 to rotate, outer rotor coil 14 is by being arranged on driven shaft 11
Collector ring 15 be connected with outer rotor winding wiring case 33.
First internal rotor 9 includes being set on driving shaft 8 and building up certain thickness internal rotor iron core by cold-reduced silicon sheet
16, the first internal rotor 9 is identical with the structure of the second internal rotor 10, be interspersed with inside two internal rotor iron cores 16 sliver 5 and with
The insulation sliver 57 that sliver 5 is used cooperatively, each sliver 5 is also cross the first internal rotor 9 and the second internal rotor 10, in sliver 5
Both ends be provided with end ring conductor 17, two internal rotor iron cores 16 are linked to be by an entirety, sliver by end ring conductor 17 and sliver 5
5 are arranged with the pre- taut band 56 of sliver between two internal rotor iron cores 16, set the pre- taut band of sliver to prevent sliver and revolve at a high speed
Change shape.
The minimum range of axial direction is L between first internal rotor 9 and the second internal rotor 10, and L dimension is 200mm, from
Moving axis 11 is provided with mounting hole 18 close to one end of driving shaft 8, and transition bearing 19, the outer ring of transition bearing 19 are provided with mounting hole 18
Coordinate with driven shaft 11, inner ring coordinates with driving shaft 8；Measuring temperature of bearing probe 20 is provided with electromagnetic adjustable speed motor, in driven shaft 11
Provided with measure speed gearses 21 and the holes probe 22 for measuring rotating speed is fixed on motor housing 1 and is used for, inside motor housing 1
Provided with anti-condensation heater 31.
Cooling system is provided with inside motor housing 1, cooling system is made up of internal circulation apparatus and external circulating device, motor
Shell 1 includes base 101 and is arranged on the case 102 of the upper end of base 101, and aggressive device and slave unit are arranged at base
In 101；
External circulating device includes case 102, and case 102 is L-shaped, is provided with along the length direction one end of case 102 and is used to place wind
The fan shroud 103 of machine, is provided with heat exchanger tube 23 along its length inside case 102, the one end of heat exchanger tube 23 with fan shroud 103
Portion connects, the other end and ft connection, and being located at the outside of base 101 in driving shaft 8 is provided with outer circulation blower fan 24, outer circulation blower fan 24
It is arranged on inside fan shroud 103；
Internal circulation apparatus includes the first blower fan 25 of interior circulation, the second blower fan 26 of interior circulation, in driving shaft 8 close to outer circulation blower fan 24
One end set in the first blower fan 25 of circulation, be provided with interior circulation the close to one end away from rotor core skeleton 12 in driven shaft 11
Two blower fans 26, driving shaft 8 are provided with spline boss 27 along its circumferencial direction, and the first internal rotor 9, the second internal rotor 10 are provided with and flower
The groove 28 that key boss 27 is engaged, and air channel 29 is provided between the first internal rotor 9, the second internal rotor 10 and driving shaft 8, in iron
Core crab 12 is provided with air vent 30, and the second blower fan 26 of interior circulation is connected with air channel 29 by air vent 30, passes through interior circulation
By internal hot blast, inwardly the second blower fan 26 of circulation spreads first blower fan 25, then the second blower fan 26 of interior circulation by hot blast to upper end
Heat exchanger tube 23 spreads, and heat exchanger tube 23 manages the interior temperature difference progress heat exchange for being outside low temperature wind, utilizing interior exogenous wind passed through, reality
The purpose of the existing internal cooling of base 101, wherein outer circulation blower fan 24 use centrifugal fan with the second blower fan 26 of interior circulation, interior
Circulate the first blower fan 25 and use axial flow blower, wherein the shaft power of the second blower fan 26 of interior circulation is designed as the first blower fan 25 of interior circulation
2 times of shaft power.
The control system of electromagnetic adjustable speed motor includes master controller 32, the outer rotor coil being arranged on motor housing 1 connects
Line case 33, feedback connection box 34, power network wiring case 35, feedback connection box 34 and the internal circuit of power network wiring case 35 are by leading
Line is first in parallel, is then connected again with stator coil 7, main work is provided between outer rotor winding wiring case 33 and feedback connection box 34
Make loop；
Main performance loop includes main circuit breaker 36, outer rotor side filter 37, the outer rotor side convertor circuit being sequentially connected in series
38th, stator side convertor circuit 39, stator side filter 40, low-tension switch cabinet 41, step-up transformer 42 and high-tension switch cabinet 43；
Accessed between outer rotor-side convertor circuit 38 and outer rotor side filter 37 for preventing electrical network low voltage interference low
Voltage suppressor 44, outer rotor side convertor circuit 38 and stator side convertor circuit 39 are a pair of symmetrical PWM controls electricity
Road, controllable two-way admittance power supply can be realized；
Back work loop is additionally provided with the outer side of rotor coil junction box 33, back work loop is in parallel with main performance loop to be set
Put, back work loop includes the auxiliary circuit breaker 45 and resistance controller 46 being sequentially connected in series with outer rotor winding wiring case 33；
Main circuit breaker 36, outer rotor side convertor circuit 38, low-tension switch cabinet 41, high-tension switch cabinet 43, auxiliary circuit breaker 45 and electricity
The control terminal of resistance adjuster 46 is connected with master controller 32, and master controller 32 is connected with grid phase detector 47, so as to
Receive the phase signal of power network.
The application method of the control system of electromagnetic adjustable speed motor is carried out according to the following steps：
Step 1：Electromagnetic adjustable speed motor starting-up method：First main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41 are disconnected,
Anti-condensation heater 31 was powered after 10 minutes and turned off, then power network wiring case 35 is connected power network and is powered, and starts to lead in stator coil 7
Overcurrent, the induced field of power frequency change is set up in stator core 6, induced-current is also accordingly produced in sliver 5, in induced electricity
In the presence of stream, driving shaft 8 constantly accelerates, and rated speed is reached after 5s, and now the rotating speed of driven shaft 11 is 0；Then main circuit breaker
36 and low-tension switch cabinet 41 switch closure, master controller 32 by control the electric current in outer rotor coil 14 control stator
The electric current of coil 7 is no more than its rated current, the rotating speed of driven shaft 11 is improved constantly until reaching the rotating speed for meeting technological requirement
Untill, while the electric energy that the slip of outer rotor coil 14 is sent is become and line voltage, frequency by the conversion of main control loop
With phase identical electric energy feedback to stator coil 7；
Step 2：Electromagnetic adjustable speed motor enters the method for normal regulating；When user's request prompting rotating speed needs to improve, main control
Device 32 controls the electric current of outer rotor coil 14 to increase until meeting that needs are by improving the arcing time factor of outer rotor side convertor circuit
Only；When user's request prompting rotating speed needs to reduce, master controller 32 is by reducing the arcing time factor control of outer rotor side convertor circuit
The electric current of outer rotor coil 14 processed is decreased up to untill meeting needs, and the arcing time factor is 40%, while the slip of outer rotor coil 14
The electric energy sent is become and line voltage, frequency and phase identical electric energy feedback to stator by the conversion of main control loop
Coil 7；
Step 3：When main circuit breaker 36, outer rotor side filter 37, outer rotor side convertor circuit 38, stator side convertor circuit 39,
There is event in the main control loop that stator side filter 40, low-tension switch cabinet 41, step-up transformer 42 and high-tension switch cabinet 43 are formed
During barrier, master controller 32 controls switching off for main circuit breaker 36 and low-tension switch cabinet 41 immediately, and auxiliary circuit breaker 45 is connected, electricity
Hinder adjuster 46 and form loop with outer rotor coil 14, master controller 32 controls electricity in the regulating loop of resistance controller 46
Resistance, so as to adjust the electric current of outer rotor coil 14, and then output speed and the torque of outer rotor coil 14 are adjusted, it is now outer turn
The electric energy that the slip of subcoil 14 is sent is dissipated by the resistance heating of resistance controller 46；
Step 4：Closing method：Master controller 32 will control opening for main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41
Shut-off is opened, and then power network wiring case 35 disconnects with power network, while is controlled anti-condensation heater 31 to be powered and kept electromagnetic adjustable speed motor
Internal temperature and insulation.
The control system of electromagnetic adjustable speed motor includes Rotating speed measring terminal box 49, the transition axis being arranged on motor housing 1
Hold oiling window 50, measuring temperature of bearing junction box 51, outer rotor winding wiring case 33, coil temperature measuring junction box 52, anti-condensation heater connect
Line case 53, feedback connection box 34, power network wiring case 35, stator coil temperature probe 48, outer rotor coil temperature probe 54, collection
Electric ring maintaining cover 55；
It is Rotating speed measring terminal box 49, measuring temperature of bearing junction box 51, outer rotor winding wiring case 33, coil temperature measuring junction box 52, anti-
Damp heater junction box 53, popped one's head in respectively with holes probe 22, measuring temperature of bearing by wire 20, collector ring 15, stator coil survey
Temperature probe 48, outer rotor coil temperature probe 54, anti-condensation heater 31, and the feedback port of the various detecting instruments of the above with
Master controller 32 connects.
Embodiment 2
A kind of great-power electromagnetic buncher that the present embodiment provides, the technical scheme of the present embodiment is same as Example 1, wherein
L dimension is 500mm, and the shaft power of the second blower fan 26 of interior circulation is designed as 4 times of the shaft power of the first blower fan 25 of interior circulation, electromagnetism
The application method of the control system of buncher is carried out according to the following steps：
Step 1：Electromagnetic adjustable speed motor starting-up method：First main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41 are disconnected,
Anti-condensation heater 31 was powered after 15 minutes and turned off, then power network wiring case 35 is connected power network and is powered, and starts to lead in stator coil 7
Overcurrent, the induced field of power frequency change is set up in stator core 6, induced-current is also accordingly produced in sliver 5, in induced electricity
In the presence of stream, driving shaft 8 constantly accelerates, and rated speed is reached after 20s, and now the rotating speed of driven shaft 11 is 0；Then main open circuit
The switch of device 36 and low-tension switch cabinet 41 closes, and it is fixed that master controller 32 is controlled by controlling the electric current in outer rotor coil 14
The electric current of subcoil 7 is no more than its rated current, improves constantly the rotating speed of driven shaft 11 and meets turning for technological requirement until reaching
Untill speed, while the electric energy that the slip of outer rotor coil 14 is sent is become and line voltage, frequency by the conversion of main control loop
Rate and phase identical electric energy feedback are to stator coil 7；
Step 2：Electromagnetic adjustable speed motor enters the method for normal regulating；When user's request prompting rotating speed needs to improve, main control
Device 32 controls the electric current of outer rotor coil 14 to increase until meeting needs by improving the arcing time factor of outer rotor side convertor circuit 38
Untill；When user's request prompting rotating speed needs to reduce, master controller 32 is by reducing the temporary load of outer rotor side convertor circuit 38
The electric current of rate control outer rotor coil 14 is decreased up to untill meeting needs, and the arcing time factor is 50%, while outer rotor coil 14
The electric energy that slip is sent becomes to arrive with line voltage, frequency and phase identical electric energy feedback by the conversion of main control loop
Stator coil 7；
Step 3：When main circuit breaker 36, outer rotor side filter 37, outer rotor side convertor circuit 38, stator side convertor circuit 39,
There is event in the main control loop that stator side filter 40, low-tension switch cabinet 41, step-up transformer 42 and high-tension switch cabinet 43 are formed
During barrier, master controller 32 controls switching off for main circuit breaker 36 and low-tension switch cabinet 41 immediately, and auxiliary circuit breaker 45 is connected, electricity
Hinder adjuster 46 and form loop with outer rotor coil 14, master controller 32 controls electricity in the regulating loop of resistance controller 46
Resistance, so as to adjust the electric current of outer rotor coil 14, and then output speed and the torque of outer rotor coil 14 are adjusted, it is now outer turn
The electric energy that the slip of subcoil 14 is sent is dissipated by the resistance heating of resistance controller 46；
Step 4：Closing method：Master controller 32 will control opening for main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41
Shut-off is opened, and then power network wiring case 35 disconnects with power network, while is controlled anti-condensation heater 31 to be powered and kept electromagnetic adjustable speed motor
Internal temperature and insulation.
Embodiment 3
A kind of great-power electromagnetic buncher that the present embodiment provides, the technical scheme of the present embodiment is same as Example 1, wherein
L dimension is 2000mm, and the shaft power of the second blower fan 26 of interior circulation is designed as 5 times of the shaft power of the first blower fan 25 of interior circulation, electricity
The application method of the control system of magnetic buncher is carried out according to the following steps：
Step 1：Electromagnetic adjustable speed motor starting-up method：First main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41 are disconnected,
Anti-condensation heater 31 was powered after 12 minutes and turned off, then power network wiring case 35 is connected power network and is powered, and starts to lead in stator coil 7
Overcurrent, the induced field of power frequency change is set up in stator core 6, induced-current is also accordingly produced in sliver 5, in induced electricity
In the presence of stream, driving shaft 8 constantly accelerates, and rated speed is reached after 10s, and now the rotating speed of driven shaft 11 is 0；Then main open circuit
The switch of device 36 and low-tension switch cabinet 41 closes, and it is fixed that master controller 32 is controlled by controlling the electric current in outer rotor coil 14
The electric current of subcoil 7 is no more than its rated current, improves constantly the rotating speed of driven shaft 11 and meets turning for technological requirement until reaching
Untill speed, while the electric energy that the slip of outer rotor coil 14 is sent is become and line voltage, frequency by the conversion of main control loop
Rate and phase identical electric energy feedback are to stator coil 7；
Step 2：Electromagnetic adjustable speed motor enters the method for normal regulating；When user's request prompting rotating speed needs to improve, main control
Device 32 controls the electric current of outer rotor coil 14 to increase until meeting needs by improving the arcing time factor of outer rotor side convertor circuit 38
Untill；When user's request prompting rotating speed needs to reduce, master controller 32 is by reducing the temporary load of outer rotor side convertor circuit 38
The electric current of rate control outer rotor coil 14 is decreased up to untill meeting needs, and the arcing time factor is 60%, while outer rotor coil 14
The electric energy that slip is sent becomes to arrive with line voltage, frequency and phase identical electric energy feedback by the conversion of main control loop
Stator coil 7；
Step 3：When main circuit breaker 36, outer rotor side filter 37, outer rotor side convertor circuit 38, stator side convertor circuit 39,
There is event in the main control loop that stator side filter 40, low-tension switch cabinet 41, step-up transformer 42 and high-tension switch cabinet 43 are formed
During barrier, master controller 32 controls switching off for main circuit breaker 36 and low-tension switch cabinet 41 immediately, and auxiliary circuit breaker 45 is connected, electricity
Hinder adjuster 46 and form loop with outer rotor coil 14, master controller 32 controls electricity in the regulating loop of resistance controller 46
Resistance, so as to adjust the electric current of outer rotor coil 14, and then output speed and the torque of outer rotor coil 14 are adjusted, it is now outer turn
The electric energy that the slip of subcoil 14 is sent is dissipated by the resistance heating of resistance controller 46；
Step 4：Closing method：Master controller 32 will control opening for main circuit breaker 36, auxiliary circuit breaker 45 and low-tension switch cabinet 41
Shut-off is opened, and then power network wiring case 35 disconnects with power network, while is controlled anti-condensation heater 31 to be powered and kept electromagnetic adjustable speed motor
Internal temperature and insulation.
The technological thought of above example only to illustrate the invention, it is impossible to protection scope of the present invention is limited with this, it is every
According to technological thought proposed by the present invention, any change done on the basis of technical scheme, the scope of the present invention is each fallen within
Within.
Claims (9)
1. a kind of great-power electromagnetic buncher, including motor housing（1）, it is characterised in that：In the motor housing（1）It is internal
And aggressive device and slave unit are provided with along its length, the aggressive device is by the stator module that does not rotate（2）And rotation
Internal rotor component（3）Composition；The slave unit includes outer rotor component（4）, wherein the internal rotor component of the rotation（3）
Including the first internal rotor（9）With the second internal rotor（10）, first internal rotor（9）With stator module（2）Between, turn in second
Son（10）With outer rotor component（4）Between be respectively provided with running clearance, first internal rotor（9）With stator module（2）Carry out electricity
Magnetic coupling transmits moment of torsion, the second internal rotor（10）With outer rotor component（4）Carry out electromagnetic coupled and transmit moment of torsion.
2. great-power electromagnetic buncher according to claim 1, it is characterised in that：The stator module（2）Including with
Motor housing（1）Fixed stator core（6）, along the stator core（6）Length direction is arranged with stator coil（7）, it is described
Stator coil（7）It is connected with external electrical network；
The internal rotor component（3）Including driving shaft（8）, the driving shaft（8）Pass through bearing and motor housing（1）Connection is solid
It is fixed, along the driving shaft（8）Length direction is sequentially provided with the first internal rotor（9）With the second internal rotor（10）, described first interior turn
Son（9）With the second internal rotor（10）It is cage rotor, first internal rotor（9）With stator core（6）It is corresponding, pass through outside
Power network is to stator coil（7）It is powered, the internal rotor of torque drive first is transmitted using electromagnetism coupling（9）Rotate, finally make driving shaft（8）
Rotate.
3. great-power electromagnetic buncher according to claim 1, it is characterised in that：The outer rotor component（4）Including
Driven shaft（11）, the driven shaft（11）Pass through bearing and motor housing（1）It is fixed, in the driven shaft（11）In second
Rotor（10）One end be provided with rotor core skeleton（12）, the rotor core skeleton（12）It is provided with and the second internal rotor（10）
Corresponding outer rotor iron core（13）, along the outer rotor iron core（13）Length direction is arranged with outer rotor coil（14）, described
Two internal rotors（10）With outer rotor iron core（13）Between carry out electromagnetic coupled, so as to drive driven shaft（11）Rotate, described outer turn
Subcoil（14）By being arranged on driven shaft（11）On collector ring（15）With outer rotor winding wiring case（33）Connection.
4. great-power electromagnetic buncher according to claim 2, it is characterised in that：First internal rotor（9）Including
It is set in driving shaft（8）Above and by multiple cold-reduced silicon sheets build up certain thickness internal rotor iron core（16）, described first interior turn
Son（9）With the second internal rotor（10）Structure is identical, in two internal rotor iron cores（16）Inside is interspersed with multiple slivers（5）And with
Sliver（5）The insulation sliver being used cooperatively（57）, each sliver（5）Also cross the first internal rotor（9）With the second internal rotor
（10）, in sliver（5）Both ends be provided with end ring conductor（17）, pass through end ring conductor（17）And sliver（5）By two internal rotor iron
Core（16）It is linked to be an entirety, the sliver（5）Positioned at two internal rotor iron cores（16）Between be arranged with the pre- taut band of sliver（56）.
5. great-power electromagnetic buncher according to claim 2, it is characterised in that：First internal rotor（9）With
Two internal rotors（10）Between the minimum range of axial direction be L, and the L dimension is more than 200mm, the driven shaft（11）It is close
Driving shaft（8）One end be provided with mounting hole（18）, the mounting hole（18）In be provided with transition bearing（19）, the transition bearing
（19）Outer ring and driven shaft（11）Coordinate, inner ring and driving shaft（8）Coordinate；Multiple bearings are provided with the electromagnetic adjustable speed motor
Temperature probe（20）, in the driven shaft（11）It is provided with measure speed gearses（21）And it is fixed on motor housing（1）Above and it is used for
Measure the holes probe of rotating speed（22）, the motor housing（1）Inside is provided with anti-condensation heater（31）.
6. great-power electromagnetic buncher according to claim 2, it is characterised in that：In the motor housing（1）It is internal
Provided with cooling system, the cooling system is made up of internal circulation apparatus and external circulating device, the motor housing（1）Including base
（101）Be arranged on base（101）The case of upper end（102）, aggressive device and slave unit are arranged at base（101）In；
The external circulating device includes case（102）, the case（102）It is L-shaped, along the case（102）Length direction
One end is provided with the fan shroud for being used for placing blower fan（103）, in the case（102）Inside is provided with multiple heat exchange along its length
Pipe（23）, the heat exchanger tube（23）One end and fan shroud（103）Inside connection, the other end and ft connection, in the driving shaft
（8）Positioned at base（101）Outside is provided with outer circulation blower fan（24）, the outer circulation blower fan（24）It is arranged on fan shroud（103）It is interior
Portion；
The internal circulation apparatus includes the first blower fan of interior circulation（25）, it is interior circulation the second blower fan（26）, in the driving shaft（8）Lean on
Nearly outer circulation blower fan（24）One end set in circulation the first blower fan（25）, in the driven shaft（11）Close to away from rotor core
Skeleton（12）One end be provided with it is interior circulation the second blower fan（26）, the driving shaft（8）Multiple spline protrudeds are provided with along its circumferencial direction
Platform（27）, first internal rotor（9）, the second internal rotor（10）It is provided with and spline boss（27）The groove being engaged（28）,
And first internal rotor（9）, the second internal rotor（10）With driving shaft（8）Between be provided with air channel（29）, in the iron core skeleton
（12）It is provided with air vent（30）, pass through air vent（30）By the second blower fan of interior circulation（26）With air channel（29）Connection, by interior
Circulate the first blower fan（25）Internal hot blast is inwardly circulated into the second blower fan（26）Diffusion, it is then interior to circulate the second blower fan（26）By heat
The heat exchanger tube of wind direction upper end（23）Diffusion, heat exchanger tube（23）What is passed through in pipe is outside low temperature wind, utilizes the temperature of interior exogenous wind
Difference carries out heat exchange, realizes base（101）The purpose of internal cooling, wherein the second blower fan of interior circulation（26）Shaft power design
For the first blower fan of interior circulation（25）2 times or more than 2 times of shaft power.
7. great-power electromagnetic buncher according to claim 1, it is characterised in that：The control of the electromagnetic adjustable speed motor
System includes master controller（32）, be arranged on motor housing（1）On outer rotor winding wiring case（33）, feedback connection box
（34）, power network wiring case（35）, the feedback connection box（34）With power network wiring case（35）Internal circuit is first simultaneously by wire
Connection, then again with stator coil（7）It is connected, in the outer rotor winding wiring case（33）With feedback connection box（34）Between set
There is main performance loop；
The main performance loop includes the main circuit breaker being sequentially connected in series（36）, outer rotor side filter（37）, outer rotor side
Convertor circuit（38）, stator side convertor circuit（39）, stator side filter（40）, low-tension switch cabinet（41）, step-up transformer
（42）And high-tension switch cabinet（43）；
In outer rotor-side convertor circuit（38）With outer rotor side filter（37）Between access for preventing electrical network low voltage from disturbing
Low voltage suppressor（44）, outer rotor side convertor circuit（38）With stator side convertor circuit（39）It is symmetrical for a pair
Pwm control circuit, controllable two-way admittance power supply can be realized；
In the outer rotor winding wiring case（33）Side is additionally provided with back work loop, and the back work loop is returned with main work
Road is arranged in parallel, and the back work loop includes and outer rotor winding wiring case（33）The auxiliary circuit breaker being sequentially connected in series（45）
And resistance controller（46）；
The main circuit breaker（36）, outer rotor side convertor circuit（38）, low-tension switch cabinet（41）, high-tension switch cabinet（43）, auxiliary
Breaker（45）And resistance controller（46）Control terminal and master controller（32）Connection, the master controller（32）With power network
Phase Detector（47）Connection, so as to receive the phase signal of power network.
8. great-power electromagnetic buncher according to claim 1, it is characterised in that：The motor housing（1）It is provided with
Rotating speed measring terminal box（49）, transition bearing oiling window（50）, measuring temperature of bearing junction box（51）, outer rotor winding wiring case
（33）, coil temperature measuring junction box（52）, anti-condensation heater junction box（53）, feedback connection box（34）, power network wiring case（35）、
Stator coil temperature probe（48）, outer rotor coil temperature probe（54）, collector ring maintaining cover（55）；
The Rotating speed measring terminal box（49）, measuring temperature of bearing junction box（51）, outer rotor winding wiring case（33）, coil thermometric connects
Line box（52）, anti-condensation heater junction box（53）, by wire respectively with holes probe（22）, measuring temperature of bearing probe（20）, collection
Electric ring（15）, stator coil temperature probe（48）, outer rotor coil temperature probe（54）, anti-condensation heater（31）, and above institute
The feedback port for the various detecting instruments stated is and master controller（32）Connection.
9. according to the great-power electromagnetic buncher described in claim 1-8 any one, it is characterised in that：The electromagnetic speed-adjusting
The application method of the control system of motor is carried out according to the following steps：
Step 1：Electromagnetic adjustable speed motor starting-up method：First by main circuit breaker（36）, auxiliary circuit breaker（45）And low-tension switch cabinet
（41）Disconnect, by anti-condensation heater（31）Energization turns off after 10-15 minutes, then power network wiring case（35）Power network is connected to be powered,
Stator coil（7）In begin through electric current, stator core（6）In set up power frequency change induced field, sliver（5）In also phase
Induced-current, in the presence of induced-current, driving shaft should be produced（8）Constantly accelerate, reach rated speed after 5-20s, now
Driven shaft（11）Rotating speed is 0；Then main circuit breaker（36）And low-tension switch cabinet（41）Switch closure, master controller（32）Pass through
Control outer rotor coil（14）In electric current so that control stator coil（7）Electric current be no more than its rated current, make driven shaft
（11）Rotating speed is improved constantly untill reaching and meeting the rotating speed of technological requirement, while outer rotor coil（14）What slip was sent
Electric energy is become and line voltage, frequency and phase identical electric energy feedback to stator coil by the conversion of main control loop（7）；
Step 2：Electromagnetic adjustable speed motor enters the method for normal regulating；When user's request prompting rotating speed needs to improve, main control
Device（32）By improving outer rotor side convertor circuit（38）Arcing time factor control outer rotor coil（14）Electric current increase until full
Untill foot needs；When user's request prompting rotating speed needs to reduce, master controller（32）By reducing outer rotor side convertor circuit
（38）Arcing time factor control outer rotor coil（14）Electric current decrease up to untill meeting needs, while outer rotor coil（14）Turn
The electric energy that difference is sent is become with line voltage, frequency and phase identical electric energy feedback to calmly by the conversion of main control loop
Subcoil（7）；
Step 3：Work as main circuit breaker（36）, outer rotor side filter（37）, outer rotor side convertor circuit（38）, stator side unsteady flow electricity
Road（39）, stator side filter（40）, low-tension switch cabinet（41）, step-up transformer（42）And high-tension switch cabinet（43）The master of composition
When control loop breaks down, master controller（32）Main circuit breaker is controlled immediately（36）And low-tension switch cabinet（41）Switch break
Open, auxiliary circuit breaker（45）Connect, resistance controller（46）With outer rotor coil（14）Form loop, master controller（32）
Control resistance controller（46）Resistance in regulating loop, so as to adjust outer rotor coil（14）Electric current, and then adjust outer turn
Subcoil（14）Output speed and torque, now outer rotor coil（14）The electric energy that slip is sent passes through resistance controller
（46）Resistance heating dissipate；
Step 4：Closing method：Master controller（32）Main circuit breaker will be controlled（36）, auxiliary circuit breaker（45）And low-tension switch cabinet
（41）Switch off, then power network wiring case（35）Disconnected with power network, while control anti-condensation heater（31）It is powered and keeps electricity
The internal temperature of magnetic buncher and insulation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429438.1A CN107863866B (en) | 2017-12-26 | 2017-12-26 | High-power electromagnetic speed regulating motor |
| PCT/CN2017/118995 WO2019127097A1 (en) | 2017-12-26 | 2017-12-27 | High-power electromagnetic speed regulating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429438.1A CN107863866B (en) | 2017-12-26 | 2017-12-26 | High-power electromagnetic speed regulating motor |
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| CN107863866B CN107863866B (en) | 2023-12-12 |
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| CN201711429438.1A Active CN107863866B (en) | 2017-12-26 | 2017-12-26 | High-power electromagnetic speed regulating motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900068A (en) * | 2018-08-30 | 2018-11-27 | 南京玛格耐特智能科技有限公司 | A kind of permanent magnetism velocity modulation electric engine and its control method |
| CN109802537A (en) * | 2018-12-27 | 2019-05-24 | 六安江淮电机有限公司 | The energy-saving vehicle-mounted disc type electric machine of birotor variable moment type slide |
| WO2020042051A1 (en) * | 2018-08-30 | 2020-03-05 | 南京玛格耐特智能科技有限公司 | Permanent-magnet speed regulating motor and control method therefor |
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| CN108900068B (en) * | 2018-08-30 | 2023-12-19 | 南京玛格耐特智能科技有限公司 | Permanent magnet speed regulating motor and control method thereof |
| CN109802537A (en) * | 2018-12-27 | 2019-05-24 | 六安江淮电机有限公司 | The energy-saving vehicle-mounted disc type electric machine of birotor variable moment type slide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107863866B (en) | 2023-12-12 |
| WO2019127097A1 (en) | 2019-07-04 |
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