CN106451838A - Synchronous simulation motor for small-sized electrical excitation nonsalient pole - Google Patents
Synchronous simulation motor for small-sized electrical excitation nonsalient pole Download PDFInfo
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- CN106451838A CN106451838A CN201611076979.6A CN201611076979A CN106451838A CN 106451838 A CN106451838 A CN 106451838A CN 201611076979 A CN201611076979 A CN 201611076979A CN 106451838 A CN106451838 A CN 106451838A
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- pressing plate
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- damper winding
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a synchronous simulation motor for a small-sized electrical excitation nonsalient pole. The synchronous simulation motor comprises a laminated stator and a laminated rotor, wherein stator slots are uniformly formed in the circumferential direction of the laminated stator; adjacent stator slots form parallel teeth; the laminated rotor comprises a first pressing plate, a second pressing plate and a laminated rotor iron core in the axial direction sequentially; the laminated rotor is divided into a plurality of sector areas by magnetic pole center lines of an electrode; a plurality of damping winding grooves and an exciting winding groove are formed in each sector area at intervals; parallel teeth are arranged between the exciting winding grooves and the adjacent damping winding grooves. According to the synchronous simulation motor disclosed by the invention, the simulation of a simulation motor for main electromagnetic parameter per-unit values of a prototype machine and an electromechanical time constant is realized, and the synchronous simulation motor can effectively simulate electromagnetic and electromechanical characteristics of a large steam turbine-generator, thereby having important significance for development and construction of a dynamic simulation system and a dynamic simulation experimental research on a power system.
Description
Technical field
The invention belongs to synchronously simulating machine field, more particularly, to a kind of synchronously simulating of small electrical excitation non-salient pole
Motor.
Background technology
With the fast development of China's power system, to power system and its research and experiment of visual plant, such as electric power
Power system steady-state stability, transient stability Journal of Sex Research, Relay Protection Technology in Power System research and secondary equipment in power system reliability
Property test be obtained for academia with the great attention of industrial quarters.Due to carrying out testing extremely difficult, power train in true electrical network
System dynamic simulation test system (hereinafter referred to as moving die system) is acknowledged as being that instead of the test of true electrical network to carry out power system and grinds
Study carefully and verification experimental verification effective and important test instrument.
Large turbine-generator set is important electrical equipment in power system, is accurate simulation large turbo-type generator
The electromechanics of (i.e. prototype machine) and electromagnetic property, especially electro-magnetic transient and secondary transient characterisitics, moving die system is encouraged using small electrical
Magnetic-synchro electromotor carrys out electromechanics and the electromagnetic property for accurate simulation prototype machine, that is, realize simulated machine with prototype machine master
Want the difference such as electromagnetic parameter perunit value, time constant equal, and both have similar nonlinear characteristic.Work as in design of electrical motor
In, need the parameter perunit value for meeting synchronously simulating motor mainly to include with prototype machine identical parameter：(1) d-axis reactance Xd
With quadrature axis reactance Xq, rectangular axis reactance of armature reaction X can be subdivided intoad、XaqAnd stator winding leakage reactance Xs；(2) Exciting Windings for Transverse Differential Protection
Leakage reactance XflWith Damper Winding rectangular axis leakage reactance XDd、XDq；(3) stator winding resistance Rs, Exciting Windings for Transverse Differential Protection resistance Rf, Damper Winding orthogonal
Axle resistance RDd、RDq；(4) rotor machinery inertial time constant Tj.
Simulated machine size is usually less than the 1/100 of prototype machine, and capacity is prototype machine below 1/30000.Existing
There is following defect in the structure of the synchronously simulating motor of technology：1st, simulated machine is generally carried out reducing setting to the structure of prototype machine
Meter, due to adopting and prototype machine identical solid rotor, its eddy current damping effect is difficult to reach with prototype machine by adjustment
Unanimously, so as to affect the concordance of ultra-transient reactance perunit value.2nd, as simulated machine capacity and size are much smaller than prototype machine,
Therefore the resistance value of simulated machine is relatively large, reactance value is relatively small, so as to cause time constant relatively reduced.Existing simulation
Stator winding groove in motor and excitation groove, as notch is using the design of opening or half opening, the wider width of groove, depth are relatively
Shallow, so as to leakage reactance cannot be increased；Simultaneously as using the groove body structure of parallel slot, so as to limit winding and around radical
Increase so that resistance value is relatively large.So as to be difficult to the accurate simulation to prototype machine.
Content of the invention
Disadvantages described above or Improvement requirement for prior art, the invention provides a kind of synchronization of small electrical excitation non-salient pole
Simulated machine, its object is to improve the stator of synchronously simulating motor and the structure of rotor so that simulated machine can be effective
The simulation electromagnetism of prototype machine and electromechanical properties.
For achieving the above object, according to one aspect of the present invention, there is provided a kind of synchronously simulating motor, including stacked
Stator and laminated rotor, the laminated stator is arranged at the circumference of the laminated rotor；
The laminated stator is evenly arranged with stator slot in the circumferential, and the adjacent stator slot forms parallel teeth；
The laminated rotor includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction successively；Institute
The laminated rotor is divided into multiple sector regions, each sector region described by the pole center line for stating synchronously simulating motor
On be arranged at intervals with multiple Damper Winding grooves and Exciting Windings for Transverse Differential Protection groove, between Exciting Windings for Transverse Differential Protection groove and the Damper Winding groove that is adjacent
Form parallel teeth；
The amortisseur bar for matching with the Damper Winding groove, the two ends of the amortisseur bar are provided with each Damper Winding groove
Being connected with the first pressing plate and the second pressing plate respectively, and Damper Winding is collectively forming with the first pressing plate and the second pressing plate.
Preferably, on radial section, the stator slot is the deep trouth of semi-closed port pyriform, and the Exciting Windings for Transverse Differential Protection groove is semi-closure
The deep trouth of mouth oblique angle round bottom, the Damper Winding groove is trapezoidal deep trouth；
Wherein, the semi-closure shape of the mouth as one speaks represents the width of the notch of the groove with the ratio of the groove width at the groove top less than 1:2.5, pears
Shape represents that width of the groove at top is more than the width of bottom, and top is that arc, deep trouth represents groove height diametrically
It is more than 3 with the ratio of groove width at radially 1/2 height:1；Oblique angle represents using straight transitions, circle between the notch of groove and groove body
Bottom represents that the bottom of groove is arc, and the trapezoidal expression groove is wider than the inverted trapezoidal of bottom for top.
Preferably, the Damper Winding groove is uniformly arranged in the circumference of laminated rotor, adjacent with pole center line
Damper Winding groove is arranged with the pole center line as axial symmetry.
As it is further preferred that on the sector region, Exciting Windings for Transverse Differential Protection groove is arranged at adjacent Damper Winding groove
On axis of symmetry.
Preferably, the stator slot is skewed slot in the axial direction；For weakening air-gap field slot ripples, reduce added losses；
While the harmonic leakage reactance of stator winding and Exciting Windings for Transverse Differential Protection can be reduced, the degree of accuracy of leakage reactance simulation is improved；Skewed slot represents described
The stator lasmination of laminated stator placement straggly at an angle when laminating so that laminate the stator of the laminated stator to be formed
Groove is axially relative to the inclination angle of the central shaft of laminated stator and is 4 °～8 °, and the direction which inclines is along described stacked fixed
The tangent plane of the circumference of son.
Preferably, the laminated rotor iron core with diameter greater than first pressing plate, first pressing plate and second pressure
The diameter of plate is identical, and the outside of the two ends of the amortisseur bar respectively with the first pressing plate and the second pressing plate in the axial direction is connected.
Preferably, the material of first pressing plate, the second pressing plate and amortisseur bar is identical conductive metal material, described
Conductive metal material is less than 0.02 μ Ω m in 20 DEG C of resistivity.
As it is further preferred that the conductive metal material be red copper, both high conductivity require, while mechanical performance
Meet easily processed into type, be easy to strike loading rotor core, rigidity and ductility and meet technological requirement again.
In general, by the contemplated above technical scheme of the present invention compared with prior art, due to improving synchronization
The stator of simulated machine and the structure of rotor, can obtain following beneficial effect：
1st, the present invention adopts laminated rotor, so as to produce eddy current damping effect without using solid rotor iron core；And lead to
The vortex that inducts in the Damper Winding for crossing laminated rotor produces damping effect, it is easier to cause whirlpool by the design of Damper Winding
Flow damping effect and prototype machine reach consistent, can accurately simulate the ultra-transient reactance perunit value of prototype machine；
2nd, the stator slot in the present invention is the deep trouth of semi-closed port pears type, due to increasing the ratio of groove depth and groove width, expands
Groove area, increases the ratio of depth of rebate and width of rebate, so as to increase stator-slot leakage reactance perunit value；Exciting Windings for Transverse Differential Protection groove
For the deep trouth of semi-closure shape of the mouth as one speaks oblique angle round bottom, as the ratio of groove depth and groove width is increased, groove area is expanded, increase notch depth
Degree and the ratio of width of rebate, so as to increase Exciting Windings for Transverse Differential Protection groove leakage reactance perunit value.Damper Winding groove is trapezoidal deep trouth, due to
The ratio of groove depth and groove width is increased, groove area is expanded, the ratio of depth of rebate and width of rebate is increased, so as to increase
Damper Winding groove leakage reactance perunit value, reduces the resistance value of amortisseur bar；
3rd, the first pressing plate and the second pressing plate and amortisseur bar collectively constitute Damper Winding, so as to simplify rotor structure, contracting
Short rotor length in the axial direction, while also laminated rotor iron core is served that effect is firmly fixed, serves rotor
The effect of pressing plate；
4th, when the present invention can realize synchronously simulating motor to perunit value and the electromechanics of the major electromagnetic data of prototype machine
Between constant simulation；Empirical tests, the resistance of the synchronously simulating motor of the present invention is less than with the simulation error of reactance parameter perunit value
5%, the simulation error of time constant is less than 9% so that synchronously simulating motor can effectively be simulated and be generated electricity as large-scale steamer
The electromagnetism of unit and electromechanical properties；Development ＆ construction and dynamic simulation experiment of electric power system research hence for moving die system have
Significance.
Description of the drawings
Fig. 1 is the radial cross-section of the stator core of the synchronously simulating motor of the embodiment of the present invention 1；
Fig. 2 is the radial cross-section of the rotor core of the synchronously simulating motor of the embodiment of the present invention 1；
Fig. 3 is the rotor press plate structural representation of the synchronously simulating motor of the embodiment of the present invention 1；
In all of the figs, identical reference is used for representing identical element or structure, wherein：1- stator yoke, 2-
Stator slot, 3- stator slot notch, 4- stator tooth；5- rotor canine tooth, the little tooth of 6- rotor, 7- rotor field coil groove, 8- rotor hinders
Buddhist nun's slot for winding, 9- rotor field coil groove notch, 10- rotor Damper Winding groove notch；11- pressing plate Exciting Windings for Transverse Differential Protection groove, 12- pressing plate
Damper Winding groove, 13- pressing plate Exciting Windings for Transverse Differential Protection groove notch, 14- pressing plate Damper Winding groove notch.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.As long as additionally, involved technical characteristic in each embodiment of invention described below
Do not constitute conflict each other can just be mutually combined.
The invention provides a kind of synchronously simulating motor of small electrical excitation non-salient pole, including laminated stator and stacked
Rotor, the laminated stator is arranged at the circumference of the laminated rotor；
The laminated stator is laminated by stator lasmination and is constituted, and which is evenly arranged with stator slot 2 in the circumferential, adjacent institute
State stator slot 2 and parallel teeth 4 is formed, on radial section, the stator slot 2 is deep trouth (the i.e. width of notch 3 of semi-closed port pyriform
1 is less than with the ratio of the groove width at groove top:2.5, the width at top is more than the width of bottom, and top is height arc, radially
At degree and radially 1/2 height, the ratio of groove width is more than 3:1)；
Increasing the height diametrically of notch 3 or reducing width of rebate to increase the groove leakage reactance of stator slot 2, reduce notch
3 height or increase by 3 width of notch can reduce the groove leakage reactance of stator slot 2；Finally can be adjusted by 3 size of notch of stator slot 2 same
The leakage reactance perunit value of the stator slot 2 of step simulated machine is equal with the leakage reactance perunit value of the stator slot 2 of prototype machine；
The stator lasmination of laminated stator placement straggly at an angle when laminating so that laminate to be formed stacked fixed
The stator slot 2 of son forms skewed slot in the axial direction, and the skewed slot is 4 °～8 ° with respect to the inclination angle of the central shaft of laminated stator, its
The direction of inclination is along the tangent plane of the circumference of the laminated stator；The flume structure in the axial direction of stator slot 2, can be used to weaken gas
Gap magnetic field slot ripples, reduces added losses；While the harmonic leakage reactance of stator winding and Exciting Windings for Transverse Differential Protection can be reduced, leakage reactance is improved
The degree of accuracy of simulation；
Stator winding passes through laminated stator by stator slot 2, and is respectively closed with end on laminated stator axial direction；
The design of stator winding need to mate the number of turn around radical and stator line gauge of being often in series.Stator winding be often in series the number of turn decision
In prototype machine synchronous reactance perunit value, the increase of the number of turn that is often in series can cause the increasing of simulated machine synchronous reactance perunit value
Plus, otherwise can then reduce synchronous reactance perunit value.And it is decided by, around radical and line gauge, be often the in series number of turn and prototype machine stator
Winding resistance perunit value；After the number of turn that is often in series determines, increase and simulation electricity is caused around the radical line gauge big with radius is selected
Machine stator winding resistance perunit value reduces, and reduces and causes simulated machine stator winding electricity around the radical line gauge little with radius is selected
Resistance perunit value increase, until consistent with the parameter of prototype machine；
The laminated rotor includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction successively；Institute
The laminated rotor is divided into multiple sector regions, each sector region described by the pole center line for stating synchronously simulating motor
On be arranged at intervals with multiple Damper Winding grooves 8 and Exciting Windings for Transverse Differential Protection groove 7；For example, when pole center line is uniformly arranged, then by institute
State laminated rotor and the equal sector region of multiple angles is divided into, the Damper Winding groove 8 can be in the circumference of laminated rotor
On be uniformly arranged, the Damper Winding groove 8 adjacent with pole center line is arranged with the pole center line as axial symmetry；Except in magnetic pole
Outside the position of heart line place, Exciting Windings for Transverse Differential Protection groove 7 is arranged on the axis of symmetry of adjacent Damper Winding groove 8；Exciting Windings for Transverse Differential Protection groove 7 and and its
Parallel teeth is formed between adjacent Damper Winding groove 8；Parallel toothing defines magnetic field in Exciting Windings for Transverse Differential Protection groove and Damper Winding groove
Between be uniformly distributed, it is to avoid because local saturation weakens the precision of reactance parameter simulation；
For the deep trouth of semi-closed port oblique angle round bottom, (i.e. the width of notch 9 is less than Exciting Windings for Transverse Differential Protection groove 7 with the ratio of the groove width at groove top
1:2.5, straight transitions are adopted between notch 9 and groove body, the bottom of groove is arc, and height radially is with radially 1/2 highly
The ratio of place's groove width is more than 3:1)；The width of the Damper Winding groove 8 take cutting technique allow minima so that the damping around
For trapezoidal deep trouth, (i.e. top is wider than the inverted trapezoidal of bottom to group groove 8, groove width at height radially and radially 1/2 height
Ratio is more than 3:1)；
Increasing 9 height of notch of Exciting Windings for Transverse Differential Protection groove 7 or reducing 9 width of notch to increase the groove leakage reactance of Exciting Windings for Transverse Differential Protection groove 7,
Otherwise can then reduce the groove leakage reactance of Exciting Windings for Transverse Differential Protection groove 7, the groove leakage of Exciting Windings for Transverse Differential Protection groove 7 therefore, can be finally adjusted by 9 size of notch
Anti- perunit value is equal with the perunit value of the groove leakage reactance of the Exciting Windings for Transverse Differential Protection groove 7 of prototype machine；
Exciting Windings for Transverse Differential Protection passes through laminated rotor by Exciting Windings for Transverse Differential Protection groove 7, and is closed with the first pressing plate and the second pressing plate respectively
Close；Exciting Windings for Transverse Differential Protection design need to mate turns-in-series and around radical, line gauge, by no-load back electromotive force, Exciting Windings for Transverse Differential Protection electricity be close, prototype
Motor excitation winding resistance perunit value is together decided on；Wherein Exciting Windings for Transverse Differential Protection electricity heave root determines according to rotor cooling condition；
Increasing 10 height of notch of Damper Winding groove 8 or reducing 10 width of notch to increase by 8 leakage reactance of Damper Winding groove, subtract
10 height of small-rabbet or increase by 10 width of notch can reduce the groove leakage reactance of Damper Winding groove 8, therefore, final by 10 size of notch
The perunit value of the groove leakage reactance of damping adjusting slot for winding 8 is equal with the perunit value of the groove leakage reactance of the equivalent damping winding of prototype machine；
It is provided with the amortisseur bar for matching with the Damper Winding groove 8 in each Damper Winding groove 8, the two of the amortisseur bar
End is connected with the first pressing plate and the second pressing plate respectively, and is collectively forming Damper Winding with the first pressing plate and the second pressing plate, the
One pressing plate and the second pressing plate are the end ring of Damper Winding；As laminated rotor and being laminated by rotor pack constitutes, can be by
The diameter design of the first pressing plate and the second pressing plate must be more smaller than laminated rotor, amortisseur bar can be passed through resistance in the fabrication process
Buddhist nun's slot for winding, and the first pressing plate and the second pressing plate is stretched out from the two ends of laminated stator, with the first pressing plate and the second pressing plate
Outside welding in the axial direction, so as to play the effect for tensing rotor core, improving rotor stacking factor；
The material of first pressing plate, the second pressing plate and amortisseur bar is identical conductive metal material, the metallic conduction
Material 20 DEG C resistivity need to be less than 0.02 μ Ω m, and mechanical performance meet easily processed into type, be easy to strike loading rotor
Iron core simultaneously reaches the rigidity in technological requirement and ductility, for example, can adopt red copper.
Embodiment 1
According to the synchronously simulating motor of the present invention as Figure 1-3, which is 1 with the Capacity Ratio of prototype machine:120000.
Fig. 1 is the radial cross-section of the stator core of the synchronously simulating motor of the embodiment of the present invention 1.As shown in figure 1, this is same
The stator core of the laminated stator of step simulated machine adopts flume structure, and when laminating, each stator lasmination is to rotor direction of rotation
Oblique 1 stator slot away from；The laminated stator is provided with equidistributed 36 stator slots 2 in the circumferential, and adjacent stators groove 2 is formed
Parallel construction, width are 7 millimeters of stator tooth；
Stator slot 2 is using the deep trouth of semi-closed port pears type, and notch is deep 1.3 millimeters, wide 3.5 millimeters, has both met slot opening symbol
Close the requirement of inserting-coil process needs, also meet requirement of the stator leakage reactance perunit value to prototype machine parameter simulation, notch with fixed
The ratio of the top width of pilot trench 2 is 1:2.35, diametrically, the ratio of the groove width at groove depth and groove depth 1/2 is 6.2:1；Stator slot 2
Bottom a width of 25 millimeters with stator yoke 1 that the periphery of laminated stator is formed, due to the peak value magnetic in stator tooth 4, stator yoke 1
Close for 1.63T, it is to avoid stator tooth 4, the saturation of stator yoke 1；The number of turn that is often in series in the three-phase of stator winding is 144 circles, and
It is 35 around radical, stator copper factor is 65%, to meet technological requirement, while meeting synchronous reactance perunit value and stator winding
Resistance perunit value is identical with prototype machine.
The laminated rotor of the synchronously simulating motor includes the first pressing plate, the second pressing plate and stacked in the axial direction successively
Rotor core；The laminated rotor has two pole center lines, and the laminated rotor is divided into four equal right angle fans
Shape region；20 Damper Winding grooves are uniformly arranged in the circumference of laminated rotor, and the damping adjacent with pole center line around
Group groove is arranged with the pole center line as axial symmetry；On each right angle sector region, set between adjacent Damper Winding groove
Exciting Windings for Transverse Differential Protection groove is equipped with, laminated rotor is provided with 16 Exciting Windings for Transverse Differential Protection grooves altogether.The adjacent Damper Winding of pole center line or so
Canine tooth is formed between groove, Exciting Windings for Transverse Differential Protection groove and the Damper Winding groove being adjacent form little tooth, little tooth is parallel teeth；
Fig. 2 is the radial cross-section of the rotor core of the synchronously simulating motor of the embodiment of the present invention 1, and Fig. 3 is reality of the present invention
Apply rotor press plate (the first pressing plate, the second pressing plate) structural representation of the synchronously simulating motor of example 1；As Figure 2-3, excitation around
Group groove 7 is the deep trouth of semi-closed port oblique angle round bottom, and it is 1 with outside groove width ratio that top bevel angle is 30 degree, notch:2.8, groove depth 43
Millimeter, is that 155 circles, rotor copper factor meets technological requirement for 65% per groove turns-in-series；Damper Winding groove 8 is trapezoidal depth
Groove, notch is deep 4 millimeters, 3 millimeters of slot opening, and Damper Winding groove notch 10 is deep 3.1 millimeters, wide 0.6 millimeter.5 bottom of rotor canine tooth
9.8 millimeters of width, 3.6 millimeters of 6 bottom width of little tooth, rotor canine tooth 5 1.85T close with the peak value magnetic of little tooth 6, it is to avoid rotor tooth
The supersaturation in region.Above-mentioned design parameter can all meet simulated machine reactance parameter perunit value to the simulation of prototype machine will
Ask.
Rotor press plate shown in Fig. 3 is less than the external diameter of rotor core 5 millimeters, width of the Exciting Windings for Transverse Differential Protection groove on pressing plate with encourage
Averagely big 1 millimeter of width of the magnetic slot for winding on rotor core；Damper Winding groove 12 on rotor press plate is compared to rotor core
Both sides of the Damper Winding groove 8 on radial section width each broadening 0.25 millimeter with allowance weld, the resistance on rotor press plate
The notch 14 of Buddhist nun's slot for winding is open slot.The amortisseur bar for matching with Damper Winding groove 8 is provided with Damper Winding groove 8.Welding
When, the two ends of amortisseur bar stretch out the first pressing plate and the second pressing plate respectively, and in the case of forcing tight rotor core and pressing plate outside,
Weld together with rotor press plate, rotor press plate is simultaneously as Damper Winding end plate.In the present embodiment, amortisseur bar and rotor press plate
All using red copper material.
The partial parameters of the simulated machine that is designed according to the present embodiment and its compare with prototype machine parameter and be shown in Table 1 institute
Show.
The simulated machine of 1 embodiment 1 of table is contrasted with the partial parameters of prototype machine
As can be seen from Table 1, the simulation error of the resistance of the synchronously simulating motor of the present invention and reactance parameter perunit value
Less than 5%, the simulation error of time constant is less than 9%；Illustrate that conduct can effectively be simulated by the synchronously simulating motor of the present invention
The electromagnetism of large turbine-generator set and electromechanical properties.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, not in order to
The restriction present invention, all any modification, equivalent and improvement that is made within the spirit and principles in the present invention etc., all should include
Within protection scope of the present invention.
Claims (9)
1. a kind of synchronously simulating motor, it is characterised in that including laminated stator and laminated rotor；
The laminated stator is evenly arranged with stator slot in the circumferential, and the adjacent stator slot forms parallel teeth；
The laminated rotor includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction successively；Described same
Step simulated machine pole center line the laminated rotor is divided into multiple sector regions, on each sector region described between
Every being provided with multiple Damper Winding grooves and Exciting Windings for Transverse Differential Protection groove, formed between Exciting Windings for Transverse Differential Protection groove and the Damper Winding groove that is adjacent
Parallel teeth；
The amortisseur bar for matching with the Damper Winding groove is provided with each Damper Winding groove, and the two ends of the amortisseur bar are respectively
Being connected with the first pressing plate and the second pressing plate, and Damper Winding is collectively forming with the first pressing plate and the second pressing plate.
2. synchronously simulating motor as claimed in claim 1, it is characterised in that the stator slot is the deep trouth of semi-closed port pyriform,
The Exciting Windings for Transverse Differential Protection groove is the deep trouth of semi-closed port oblique angle round bottom, and the Damper Winding groove is trapezoidal deep trouth.
3. synchronously simulating motor as claimed in claim 1, it is characterised in that the Damper Winding groove is in the week of laminated rotor
It is uniformly arranged upwards, the Damper Winding groove adjacent with pole center line is arranged with the pole center line as axial symmetry.
4. synchronously simulating motor as claimed in claim 3, it is characterised in that on the sector region, Exciting Windings for Transverse Differential Protection groove sets
It is placed on the axis of symmetry of adjacent Damper Winding groove.
5. synchronously simulating motor as claimed in claim 1, it is characterised in that the stator slot in the axial direction be.
6. synchronously simulating motor as claimed in claim 5, it is characterised in that the inclination angle of the stator slot be°～8°.
7. synchronously simulating motor as claimed in claim 1, it is characterised in that the laminated rotor iron core with diameter greater than institute
State the first pressing plate, first pressing plate is identical with the diameter of the second pressing plate, the two ends of the amortisseur bar respectively with the first pressing plate with
And second pressing plate in the axial direction outside connection.
8. synchronously simulating motor as claimed in claim 1, it is characterised in that first pressing plate, the second pressing plate and damping
The material of bar is identical conductive metal material, and the conductive metal material is less than 0.02 μ Ω m in 20 DEG C of resistivity.
9. synchronously simulating motor as claimed in claim 8, it is characterised in that the conductive metal material be.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611076979.6A CN106451838B (en) | 2016-11-30 | 2016-11-30 | A kind of synchronously simulating motor of small electrical excitation non-salient pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611076979.6A CN106451838B (en) | 2016-11-30 | 2016-11-30 | A kind of synchronously simulating motor of small electrical excitation non-salient pole |
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| Publication Number | Publication Date |
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| CN106451838A true CN106451838A (en) | 2017-02-22 |
| CN106451838B CN106451838B (en) | 2019-06-18 |
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| CN204258458U (en) * | 2014-12-08 | 2015-04-08 | 北京京仪敬业电工科技有限公司 | A kind of permanent magnet synchronous motor stator punching |
| CN205544667U (en) * | 2016-04-06 | 2016-08-31 | 哈尔滨理工大学 | Novel turbo generator rotor |
| CN205622350U (en) * | 2016-05-04 | 2016-10-05 | 武汉唯特特种电机有限公司 | Exchange asynchronous simulation generator of double -fed |
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2016
- 2016-11-30 CN CN201611076979.6A patent/CN106451838B/en not_active Expired - Fee Related
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| CN201839179U (en) * | 2010-10-28 | 2011-05-18 | 陕西航空电气有限责任公司 | Rotor structure of aircraft generator |
| CN101976917A (en) * | 2010-11-26 | 2011-02-16 | 湘潭电机股份有限公司 | Method for manufacturing rotor of intermediate frequency synchronous motor |
| EP2615722A2 (en) * | 2012-01-16 | 2013-07-17 | Hamilton Sundstrand Corporation | Brushless starter generator |
| CN202435167U (en) * | 2012-01-18 | 2012-09-12 | 广州广重企业集团有限公司 | Damping winding structure of steam turbine generator |
| CN204258458U (en) * | 2014-12-08 | 2015-04-08 | 北京京仪敬业电工科技有限公司 | A kind of permanent magnet synchronous motor stator punching |
| CN205544667U (en) * | 2016-04-06 | 2016-08-31 | 哈尔滨理工大学 | Novel turbo generator rotor |
| CN205622350U (en) * | 2016-05-04 | 2016-10-05 | 武汉唯特特种电机有限公司 | Exchange asynchronous simulation generator of double -fed |
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