CN104467328A - Novel single-layer and double-layer mixed concentric unequal-turn super-effective asynchronous motor - Google Patents
Novel single-layer and double-layer mixed concentric unequal-turn super-effective asynchronous motor Download PDFInfo
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- CN104467328A CN104467328A CN201410720575.0A CN201410720575A CN104467328A CN 104467328 A CN104467328 A CN 104467328A CN 201410720575 A CN201410720575 A CN 201410720575A CN 104467328 A CN104467328 A CN 104467328A
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Abstract
The invention provides a novel single-layer and double-layer mixed concentric unequal-turn super-effective asynchronous motor. According to the motor, the number q of slots per pole per phase of a stator winding is made to be a large value 3 by changing slot coordination between a stator and a rotor; meanwhile, single-layer and double-layer mixing is achieved, double-layer design is adopted for a coil with the upper layer and lower layer in the same phase, single-layer design is adopted for a coil with the upper layer and lower layer in different phases, the coils are arranged in a concentric mode, the number of turns of the coils on the inner layer is smaller than that of the coils on the outer layer, 54-slot windings are provided, harmonic waves and added losses of the motor are reduced, and copper losses of the motor are reduced. According to the novel single-layer and double-layer mixed concentric unequal-turn super-effective asynchronous motor, copper losses, added losses and iron losses are reduced, temperature rise and vibration noise of the motor are reduced, efficiency of the motor is improved greatly, national first-level energy efficiency is realized, and electric energy is saved.
Description
Technical field
The present invention relates to field of motor manufacturing, particularly the novel single two-layer hybrid of one does not wait the super asynchronous machine of circle with one heart.
Background technology
In recent years under the support of national policy, China's motor efficiency progressively improves, but Overall energy efficiency level still can not reach ultra high efficiency level and super ultra high efficiency grade.For the requirement of new national standard GB18613-2012, development is started to the domestic indivedual producer of existing super ultra-high efficient motor, also do not had ripe design at present.From motor self, China's electric efficiency average level than external low 3-5 percentage point, at present ultra-high efficient motor still lower; A large amount of uses of poor efficiency motor cause huge electricity consumption waste, and high efficiency motor uses commonplace, up to now, because y series motor on domestic middle and small motor market is the market share that master still occupies nearly 90%.And the market share of China's high efficiency motor is only about 3% at present.Due to price factor, have in nearly 300 middle and small motor factories of scale at present, only obtain the certification of YX3 series of high efficiency motor less than 100.
Industrial circle motor efficiency often improves one percentage point, can about year electrical energy saving 26,000,000,000 kilowatt hour.By promoting ultra-high efficient motor, ultra-high efficient motor being carried out super ultra high efficiency and manufactures again, can the percentage point of lifting motor system effectiveness, economize on electricity more than one hundred billion kilowatt hour can be realized year, be equivalent to the energy output of several pipe of reinforced concrete at Three Gorges Power Stations.
So national policy specifies to implement " GB18613-2012 " regulation on September 1st, 2012, and on September 1st, 2016 rises, and the national secondary of new mark (IE3 ultra-high efficient motor) implemented by middle-size and small-size asynchronous machine.This loss of electric machine value reduces by 20% than high efficiency motor.For the motor of running time in year more than 8000 hours, load factor is more than 60%, and the electricity charge calculate with 0.7 yuan/degree, the cost that about 1.5 years recoverable standard electromotors additionally increase.Along with the fast development of China's modernization economy, problems of energy consumption grows with each passing day.Motor is as the device of power conversion, convert electric energy to mechanical energy, drive the running of various equipment, and motor occupies sizable proportion in the power consumption that whole country is total, therefore in order to energy savings, super ultra high efficiency asynchronous machine also can the following motor developing direction of achievement gradually, dominate in motor application gradually.The lifting of electric efficiency and the reduction of loss are remained to the vital task of Chinese national economy development simultaneously, adopt what kind of high permeability material, and how on the basis keeping material cost, to seem particularly important by change winding and the raising such as rotor slot fit and suitable flute profile electric efficiency.
Existing motor winding configuration has individual layer, bilayer, single two-layer hybrid formula.
Wherein single layer winding can be divided into individual layer stacked by type, individual layer chain type, individual layer concentric type, and individual layer staggered form and individual layer intersect hybrid with one heart, and single layer winding is mainly applied and miniature motor and part wound-rotor motor rotor.
Two layer winding comprises double-deck stacked, double-layer concentric and double-layer chain.
List two-layer hybrid formula comprises the first pair winding configuration such as rear list and first two rear lists.Single two-layer hybrid formula is a kind of performance preferably winding configuration, and it had both remained double-deck short distance can improve field waveform, again can reducing harmonics, and improve startability, reducing supplementary load loss etc. is that copper factor improves in addition; Winding line length can effectively shorten and save wire rod.But effect does not still reach the degree wanted, the efficiency of motor can not be made further to promote.
The flute profile of existing 3kw ultra high efficiency asynchronous machine is parallel slot, and rotor slot shape is open slot.
Meanwhile, the silicon steel sheet that existing ultra high efficiency asynchronous machine uses is the specific high grade non-oriented electrical steel silicon steel sheet of Baosteel Baosteel, and the trade mark is B50AE-2.
Summary of the invention
In order to overcome the problem that existing product electric efficiency in prior art cannot obtain promoting further, the present invention proposes a kind of novel single two-layer hybrid super ultra high efficiency circle asynchronous machine such as not with one heart.
To achieve these goals, the present invention proposes a kind of novel single two-layer hybrid and does not wait circle to surpass ultra high efficiency asynchronous machine with one heart, the stator winding MgO-ZrO_2 brick q=3 of described motor, single two-layer hybrid, wherein the coil design of levels homophase is double-deck, the out of phase coil design of levels is individual layer, and concentric type arrangement pressed by described coil, totally 54 grooves.
Optionally, described single two-layer hybrid form is individual layer: bilayer=1:2.
Optionally, described single two-layer hybrid form is that individual layer and bilayer are arranged alternately.
Optionally, in described 54 grooves, levels coil sequence number 1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54 in the same way, the out of phase coil sequence number 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53 of levels.
Optionally, the distribution of described 54 grooves is respectively 1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54 for double-deck, and 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53 is individual layer.
Optionally, described 54 groove motors adopt concentric type, and the outer ring motor number of turn is higher than inner ring coil turn, decreases harmonic wave, reduces supplementary load loss.
Have employed the rotor flute profile of redesign, and rotor slot shape is closed slot, supplementary load loss reduce, and copper factor and detent torque, the performances such as breakdown torque also improve simultaneously.
Optionally, described ultra high efficiency asynchronous machine adopts the silicon steel sheet of high-magnetic induction, low-iron loss
The present invention adopts the silicon steel sheet of the novel high trade mark in addition, and its iron loss had more originally had larger reduction.
The beneficial effect that list two-layer hybrid of the present invention does not wait circle to surpass ultra high efficiency asynchronous machine is with one heart mainly manifested in: a kind of novel single two-layer hybrid of the present invention does not wait circle to surpass ultra high efficiency asynchronous machine with one heart, concentric unequal turns winding can reduce copper loss, reduce the temperature rise of motor, new flute profile decreases supplementary load loss, performance improvement, high grade silicon steel sheet is that iron loss is reduced, and greatly improves the efficiency of motor, has saved electric energy.
Accompanying drawing explanation
Fig. 1 is that list two-layer hybrid of the present invention does not wait circle to surpass the structural representation of ultra high efficiency asynchronous machine with one heart.
Fig. 2 list two-layer hybrid of the present invention does not wait circle to surpass the stator slot schematic diagram of ultra high efficiency asynchronous machine with one heart.
Fig. 3 list two-layer hybrid of the present invention does not wait circle to surpass the rotor schematic diagram of ultra high efficiency asynchronous machine with one heart.
Embodiment
Below in conjunction with embodiment and accompanying drawing 1, the invention will be further described.
Motor is by adopting the winding of higher stator winding MgO-ZrO_2 brick q=3, and adopt single two-layer hybrid formula, mixed form is 1:2:1, the coil design of 6 pole 54 groove Concentrical winding structure stator winding levels homophases is individual layer, the out of phase coil design of levels is individual layer, the number of turn of often enclosing is designed to unequal, and concentric type arrangement pressed by coil.Take 54 grooves altogether, wherein 1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54 is double-deck, and 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53 is individual layer.Wherein mark 1,10,20,30,40 and 50 in figure.
The present invention, by redesigning the flute profile of rotor, avoids the rising of the close and copper factor of teeth portion magnetic, decreases the supplementary load loss of motor, and vibrations noise, and the detent torque of motor and breakdown torque are all made moderate progress.
The present invention is the iron loss reducing motor further, and have employed the silicon steel sheet of novel high-magnetic induction, low-iron loss, and the cost of motor does not significantly increase, weight reduces on the contrary.
The present invention is by adopting above design, slacken subharmonic high, reduce the vibrations noise of motor, improve the winding coefficient of first-harmonic, improve the potential drop lower added loss of first-harmonic, reduce the copper loss of motor further, during the change of flute profile, the copper factor of motor improves, magnetic flux density waveforms is optimized, and decreases the degree of saturation that teeth portion magnetic is close.Adopt the silicon steel sheet of novel high-magnetic induction, low-iron loss to reduce motor iron loss, improve the efficiency of motor.The efficiency of motor is made even to reach the standard of super ultra high efficiency.Embodiment: number of stator slots is 54, and rotor adopts 42 grooves, number of magnetic poles is 6, and MgO-ZrO_2 brick is 54/ (2 × 3 × 3)=3.By accompanying drawing 1 its connected mode known, stator winding adopts single two-layer hybrid of first Dan Houshuan not etc. and pounds winding, winding configuration be 1:2:1. wherein single layer winding adopt 51 circle two layer winding be 25 circles, and be optimized design by accompanying drawing 2 and the known rotor flute profile of Fig. 3, have employed novel silicon steel material further.Through calculating, trial-production, experiment, model machine performance data and common electric machine, high efficiency motor and ultra-high efficient motor contrast properties as follows:
As can be seen from above model machine and the comparative analysis of YE3-132S-6X3 ultra high efficiency asynchronous machine, although the power factor of motor reduces one percentage point, but still compared with the power factor height one percentage point of YX3-132S-6 motor.Although simultaneously the starting current multiple of model machine raises than other motors, but still can meet the requirement of F class F insulation B stage temperature rise completely, and the detent torque multiple of motor and breakdown torque multiple all than ultra-high efficient motor and efficiently and common electric machine performance better.While lifting motor performance, motor have employed Novel silicon steel sheet material, efficiency is improved and reaches super ultra high efficiency, and the weight of motor have also been obtained reduction simultaneously.
By finding out model machine and above motor comparative analysis, the power factor of motor is roughly constant, but the efficiency of model machine improves 2.1 percentage points, and locked-rotor torque and breakdown torque all have a distinct increment simultaneously.Meanwhile the weight of motor also reduces relatively.Along with the use of motor is according to 60% average load rate, 8000 hours running times of year, actual power cost 0.7 yuan/degree calculates.Grassroot project adopts the contrast of ultra-high efficient motor investment repayment phase to see the following form:
After subsidy price difference and year node volume can contrast and find out, when price difference is more or less the same, model machine of the present invention has but saved electric energy greatly.Decrease the increase of cost.All great meaning can be produced to industry and production.
Although the present invention discloses as above with preferred embodiment, so itself and non-limiting the present invention.Persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (8)
1. a single two-layer hybrid does not wait circle asynchronous machine with one heart, it is characterized in that: the stator winding of described motor adopts larger MgO-ZrO_2 brick q=3, single two-layer hybrid, wherein the coil design of levels homophase is double-deck, the out of phase coil design of levels is individual layer, concentric type arrangement pressed by described coil, totally 54 grooves.
2. novel single two-layer hybrid according to claim 1 does not wait the super asynchronous machine of circle with one heart, it is characterized in that: described single two-layer hybrid form is individual layer: bilayer=1:2.
3. novel single two-layer hybrid according to claim 1 and 2 does not wait the super asynchronous machine of circle with one heart, it is characterized in that: described single two-layer hybrid form is that individual layer and bilayer are arranged alternately.
4. novel single two-layer hybrid according to claim 1 does not wait circle to surpass ultra high efficiency asynchronous machine with one heart, it is characterized in that: in described 54 grooves, levels coil sequence number 1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54 in the same way, the out of phase coil sequence number 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53 of levels.
5. the single two-layer hybrid according to claim 1 or 4 does not wait circle to surpass ultra high efficiency asynchronous machine with one heart, it is characterized in that: the distribution of described 54 grooves is respectively 1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25,27,28,30,31,33,34,36,37,39,40,42,43,45,46,48,49,51,52,54 for double-deck, and 2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53 is individual layer.
6. the single two-layer hybrid according to claim 1 or 4 does not wait circle to surpass ultra high efficiency asynchronous machine with one heart, it is characterized in that: the described coil internal layer number of turn is less than the outer number of turn.
7. the single two-layer hybrid told according to claim 1 does not wait circle to surpass ultra high efficiency asynchronous machine to it is characterized in that with one heart: described ultra high efficiency asynchronous machine adopts the silicon steel sheet of high-magnetic induction, low-iron loss.
8. the single two-layer hybrid told according to claim 7 does not wait circle to surpass ultra high efficiency asynchronous machine to it is characterized in that with one heart: described ultra high efficiency asynchronous machine adopts high grade silicon steel sheet.
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| CN201410720575.0A CN104467328A (en) | 2014-12-02 | 2014-12-02 | Novel single-layer and double-layer mixed concentric unequal-turn super-effective asynchronous motor |
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Cited By (2)
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|---|---|---|---|---|
| CN108336878A (en) * | 2018-03-21 | 2018-07-27 | 东南大学 | A kind of not equal circles single and two layer winding copper casting rotor induction machine |
| CN109391061A (en) * | 2017-08-09 | 2019-02-26 | 三花亚威科电器设备（芜湖）有限公司 | Three-phase star connection motor voltage-operated conversion equipment and threephase asynchronous machine again |
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| CN201937361U (en) * | 2011-03-09 | 2011-08-17 | 朱明初 | Stator winding with 4 poles and 36 grooves |
| CN102916542A (en) * | 2012-10-23 | 2013-02-06 | 朱明初 | Ultra-efficient three-phase asynchronous motor |
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- 2014-12-02 CN CN201410720575.0A patent/CN104467328A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201937361U (en) * | 2011-03-09 | 2011-08-17 | 朱明初 | Stator winding with 4 poles and 36 grooves |
| CN102916542A (en) * | 2012-10-23 | 2013-02-06 | 朱明初 | Ultra-efficient three-phase asynchronous motor |
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| 谭金鹏 等: "《电动机绕组维修 嵌线、接线操作步序实用彩色图册 第1册》", 31 March 2013, 机械工业出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109391061A (en) * | 2017-08-09 | 2019-02-26 | 三花亚威科电器设备（芜湖）有限公司 | Three-phase star connection motor voltage-operated conversion equipment and threephase asynchronous machine again |
| CN108336878A (en) * | 2018-03-21 | 2018-07-27 | 东南大学 | A kind of not equal circles single and two layer winding copper casting rotor induction machine |
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