CN2796228Y - Computer-controlled high-voltage winding cage asynchronous speed regulation motor and electromechanical integrated device - Google Patents
Computer-controlled high-voltage winding cage asynchronous speed regulation motor and electromechanical integrated device Download PDFInfo
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- CN2796228Y CN2796228Y CNU2005200910291U CN200520091029U CN2796228Y CN 2796228 Y CN2796228 Y CN 2796228Y CN U2005200910291 U CNU2005200910291 U CN U2005200910291U CN 200520091029 U CN200520091029 U CN 200520091029U CN 2796228 Y CN2796228 Y CN 2796228Y
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- 238000004804 winding Methods 0.000 title claims abstract description 10
- 238000000819 phase cycle Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
A computer-controlled high-voltage wound cage asynchronous speed regulation motor and an electromechanical integrated device comprise a wound asynchronous motor consisting of a stator, a rotor, a stator base and a rotating shaft, wherein the stator and the rotor are divided into an A part and a B part; A. the stator windings of the B part are connected in a star connection method or a delta connection method; A. the rotor windings in the B part are in star connection, and are in reverse phase connection. The inverter is connected with a reactor L and a silicon controlled rectifier circuit, and can send slip power generated by the main machine to the auxiliary machine, so that the direction of torque generated by the auxiliary machine is consistent with that of the main machine, one part of the auxiliary machine helps the main machine to drag a load, and the other part of the auxiliary machine is sent back to a power grid. The utility model has the advantages of simple technology and low cost.
Description
[technical field] the utility model relates to a kind of computer control high pressure around cage asynchronous speed-regulating motor and electromechanical integrated device, belongs to technical field of motors.
[background technology] mechanical tandem control is universally acknowledged a kind of efficient energy-saving device, and mechanical tandem is that slip power is converted into a kind of technological means that mechanical output is used.Conventional method is that the wound type asynchronous machine slip ring is received rectifier, slip power is converted into direct current power supplies with DC motor, and direct current machine directly mechanically connects together with main asynchronous motor, drives load jointly.In the said apparatus, must use the slip ring mode just can connect together, drive load jointly.In the said apparatus, must use the slip ring mode slip power could be gone to drive DC generator work through over commutation, therefore limit its range of application.In addition, because frequent maintenance issues appears in the existence of carbon brush, therefore limited its range of application.In addition, because frequent maintenance issues appears in the existence of carbon brush, reduced the reliability of device.Above-mentioned motor can not use in the environment that be corrosive inflammable, explosive.
At above-mentioned the deficiencies in the prior art part, Granted publication number has been introduced a kind of " interior tandem AC asynchronous speed-regulating motor " for CN2121095U utility model patent specification, and this motor is equivalent to increase the unit of the additional electromotive force of a cover again in common wound asynchronous motor; Also having Granted publication number be a kind of " the non-contact type winding asynchronous motor " of CN2170598Y utility model patent specification report, is to reequip the starter that is made of axle, magnet ring, insulating material, coil, iron core at the original-pack slip ring of motor place.The above-mentioned governing system that has the attachment device motor can be by wound type asynchronous motor, substitute the direct current machine in the mechanical cascade speed regulator, but but there is technical sophistication, cost an arm and a leg, shortcomings such as negative effect is many, for example the harmonic wave of taking leave of electrically-actuated throttle device not only pollutes electrical network, also pollute motor simultaneously, and the power factor (PF) of cascade adjustable-speed system has only about 0.55.Thereby, some heavy-duty motors and the occasion that some are not high to the speed governing required precision, conventional motors is still occupied the very big market.
What deserves to be mentioned is in the prior art, Granted publication number is CN2569434Y utility model patent specification disclosed a kind of " computer is controlled around cage asynchronous machine electromechanical integrated device ", this motor unites two into one two low pressure wound type asynchronous motors, can realize the speed governing of motor low pressure.For the high-voltage motor speed governing, remove at present and use technical sophistication, outside the expensive high voltage converter, a wound type asynchronous motor and a low pressure wound type asynchronous motor can't be united two into one, make buncher.
One of [summary of the invention] purpose of the present invention is to provide a kind of computer control high pressure around the cage asynchronous speed-regulating motor, this buncher not only unites two into one two wound type asynchronous motors, and be that a high-voltage asynchronous motor and a low pressure asynchronous machine are installed in the support, become a novel asynchronous machine.
Two of purpose of the present invention is to provide a kind of electromechanical integrated device with computer control, and the slip power that the inverter in this device produces main frame is given the machine of paying, and the torque direction that the machine of paying is produced is consistent with the main frame torque direction.The torque that this is a part of, a part help main frame to drag load, and another part is sent electrical network back to.
Above-mentioned purpose of the present utility model is finished like this.
A kind of computer control high pressure is around cage asynchronous speed-regulating motor and electromechanical integrated device, comprise the wound type asynchronous motor of forming by stator, rotor, out frame and rotating shaft, wherein stator and rotor are divided into A and B two parts, the high pressure cage rotor asynchronous motor that it is characterized in that said buncher employing is made up of stator, rotor, out frame and rotating shaft, stator wherein and rotor respectively are divided into A, B two parts, A portion is a high-voltage motor, A, B portion stator are fixed on the out frame, and A, B portion rotor are fixed in the rotating shaft; A, B portion stator winding are formed star connection or delta connection; A, B portion rotor winding are star connection, the phase sequence reversal connection.
Above-mentioned electromechanical integrated device is characterized in that the stator lead a of B portion, b, the C in the said device connects three-phase commutation bridge, and rectifier bridge inserts the inverter of computer control, and inverter is connected with reactor L and ghyristor circuit.Operation principle of the present utility model as shown in Figure 4, the stator A of A portion, B, C connect high pressure 10,000V or 6,000V, or 1,140V; B portion stator lead-out wire connects rectifier bridge, it is to pay machine with a part of slip power that A portion main frame produces later on because of rated revolution descends through B portion to be transformed into direct voltage, in of the energy storage effect of connected inverter circuit through reactor, by computer control thyristor operating angle, when changing B portion revolution, this part electric energy is sent back to electrical network.Because B portion rotor and A portion rotor are coaxial, the torque direction that it produces is consistent with the torque direction of A portion, so except B portion helped the main frame work done of A portion, the rotating speed of A portion also descended simultaneously, when finishing system's speed governing, also the unnecessary slip power of a part is sent back to electrical network like this.The inverter of this electromechanical integrated device can be given the machine of paying with the slip power that main frame produces, and the torque direction that the machine of paying is produced is consistent with the main frame torque direction.The torque that this is a part of, a part help main frame to drag load, and another part is sent electrical network back to.
Effect of the present invention is:
1, reliability: do not have slip ring and carbon brush, minimizing accident and maintenance workload can be used for having the place of anti-waterfall requirement.
2, efficient speed adjusting performance: the speed regulating method that was used for wound type asynchronous motor originally, this motor can be used, the rotor series resistance speed of former wound type asynchronous machine, help a motor slip power part all the other 5-6% of work done to consume on resistance entirely, so belong to the poor efficiency mode of speed regulation, and around the speed governing of cage electromechanical integration asynchronous machine, the slip power that A portion produces is delivered to B portion, wherein major part becomes B portion mechanical output and is utilized, remaining slip power is sent electrical network again back to, therefore belongs to efficient mode of speed regulation.
3, low investment: the wound type asynchronous machine tandem control is because be the slip power of control rotor, the speed regulating device capacity of the Capacity Ratio cage rotor asynchronous machine variable frequency regulating speed control stator gross power of its speed regulating device is little, and also little around the speed regulating device capacity of the speed regulating device Capacity Ratio wound type asynchronous machine of cage motor, because the power of its control is the slip power of slip power.
Core of the present invention is to replace high voltage variable frequency speed regulator with the low pressure inverter, and its cost differs at least one times.High voltage variable frequency speed regulator with 315KW is an example, and 500,000 yuan of its manufacturing costs add 100,000 yuan of motor costs again, and 600,000 yuan of total costs are with only 250,000 yuan of the complete costs of this low pressure inverter speed governing high-voltage motor.
4, good startability: can accomplish that starting torque is big.Because this speed governing apparatus for converting is because of controlling soft start with computer, starting current is little, and little the starting current of squirrel-cage motor is 5-7 a times of rated current to 1 times to 1.5 times that only equals rated current, and common wound motor is 3 times.Prolonged the life-span of driven equipment, reduced impact electrical network.Reduce maintenance load and downtime, reduced the capacity of network transformer and the conductor cross-section of cable, can significantly reduce the cost of power distribution room.If, national high and low pressure asynchronous motor all change into cage high and low pressure motor only little this of starting current just can close 20% existing power plant.
5, high pressure cage motor is applicable to 100 kilowatts to 2000 kilowatts blower fan load of the pumps, is applicable to drilling machine, and the excavator load has average energy-conservation about 30% energy-saving effect.
6,1,140 volt of cage motor of high pressure is mainly used in the pumping unit of well power of motor from 22KW-75KW.
7, motor revolution: below 1500 rev/mins.
8, speed adjustable range: more than 50%.
Along with development and national economy with for the consumption of the copper cash of saving motor, this is an inexorable trend will progressively to replace low voltage motor with high-voltage motor.Therefore, market prospects of the present invention are wide.
[description of drawings] Fig. 1 is the utility model electric machine structure schematic diagram.
Fig. 2 is the stator and rotor winding diagram of the asynchronous machine of the utility model design.
Fig. 3 is the fundamental diagram of this asynchronous machine.
Fig. 4, Fig. 5 computer control high pressure are around cage asynchronous speed-regulating motor electromechanical integrated device electrical schematic diagram.
Below in conjunction with accompanying drawing, introduce content of the present utility model in detail.Among Fig. 1, the 1st, A portion is the high-voltage motor stator, the 2nd, A portion high-voltage motor rotor, the 3rd, rotating shaft, the 4th, B portion low voltage motor rotor, the 5th, B portion low voltage motor stator, the 6th, out frame.A, B rotor winding all are star connection, the phase sequence reversal connection, as shown in Figure 3.
Operation principle of the present utility model is as shown in Figure 3: the stator lead A of A portion, B, C connect 6,000 or 1, the 140V high voltage source, and the stator lead a of B portion, b, c connect three-phase commutation bridge, and rectifier bridge inserts the inverter of computer control.Power turn-on, electric motor starting.A portion rotor output slip power is delivered to the rotor of B portion, and the principle of wiring is that negative-phase sequence connects as shown in Figure 2.It is consistent with A portion generation torque direction to produce torque direction.The slip power size of control B portion stator just can be carried out speed governing.Be provided with motor protecter in this device.
Claims (2)
1, a kind of computer control high pressure is around cage asynchronous speed-regulating motor and electromechanical integrated device, comprise the wound type asynchronous motor of forming by stator, rotor, out frame and rotating shaft, wherein stator and rotor are divided into A and B two parts, the high pressure cage rotor asynchronous motor that it is characterized in that said buncher employing is made up of stator, rotor, out frame and rotating shaft, stator wherein and rotor respectively are divided into A, B two parts, A portion is a high-voltage motor, A, B portion stator are fixed on the out frame, and A, B portion rotor are fixed in the rotating shaft; A, B portion stator winding are formed star connection or delta connection; A, B portion rotor winding are star connection, the phase sequence reversal connection.
2, electromechanical integrated device according to claim 1 is characterized in that the stator lead a of B portion, b, the C in the said device connects three-phase commutation bridge, and rectifier bridge inserts the inverter of computer control, and inverter is connected with reactor L and ghyristor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200910291U CN2796228Y (en) | 2005-05-25 | 2005-05-25 | Computer-controlled high-voltage winding cage asynchronous speed regulation motor and electromechanical integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200910291U CN2796228Y (en) | 2005-05-25 | 2005-05-25 | Computer-controlled high-voltage winding cage asynchronous speed regulation motor and electromechanical integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2796228Y true CN2796228Y (en) | 2006-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200910291U Expired - Fee Related CN2796228Y (en) | 2005-05-25 | 2005-05-25 | Computer-controlled high-voltage winding cage asynchronous speed regulation motor and electromechanical integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2796228Y (en) |
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2005
- 2005-05-25 CN CNU2005200910291U patent/CN2796228Y/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |