CN106451838B - A kind of synchronously simulating motor of small electrical excitation non-salient pole - Google Patents
A kind of synchronously simulating motor of small electrical excitation non-salient pole Download PDFInfo
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- CN106451838B CN106451838B CN201611076979.6A CN201611076979A CN106451838B CN 106451838 B CN106451838 B CN 106451838B CN 201611076979 A CN201611076979 A CN 201611076979A CN 106451838 B CN106451838 B CN 106451838B
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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
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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
- H02K1/22—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 kind of synchronously simulating motors of small electrical excitation non-salient pole, including laminated stator and laminated rotor；The laminated stator is evenly arranged with stator slot in the circumferential, and the adjacent stator slot shape is at parallel teeth；The laminated rotor successively includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction；The laminated rotor is divided into multiple fan-shaped regions by the pole center line of the electrode, and multiple Damper Winding slots and excitation winding slot are arranged at intervals on each fan-shaped region, forms parallel teeth between excitation winding slot and Damper Winding slot adjacent thereto.The present invention realizes simulation of the simulated machine to prototype machine major electromagnetic data per unit value and electromechanical time constant, synchronously simulating motor is enabled effectively to simulate electromagnetism and electromechanical properties as large turbine-generator set, the development & construction and dynamic simulation experiment of electric power system research hence for moving die system are of great significance.
Description
Technical field
The invention belongs to synchronously simulating motor fields, more particularly, to a kind of synchronously simulating of small electrical excitation non-salient pole
Motor.
Background technique
With the fast development of China's electric system, to the research and experiment of electric system and its important equipment, 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 are reliable
Property test all obtained the great attention of academia and industry.Due to carrying out testing extremely difficult, power train in true power grid
System dynamic simulation test system (hereinafter referred to as moving die system) is acknowledged as that the test progress electric system of true power grid is replaced to grind
Study carefully effective and important test instrument with verification experimental verification.
Large turbine-generator set is electrical equipment important in electric system, is accurate simulation large turbo-type generator
The electromechanics and electromagnetic property of (i.e. prototype machine), especially electro-magnetic transient and time transient characterisitics, moving die system are encouraged using small electrical
Magnetic-synchro generator carrys out the electromechanics and electromagnetic property for accurate simulation prototype machine, i.e. realization simulated machine and prototype machine master
Want electromagnetic parameter per unit value, time constant etc. equal respectively, and the two has similar nonlinear characteristic.Work as in design of electrical motor
In, the parameter per unit value parameter identical with prototype machine for needing to meet synchronously simulating motor specifically includes that (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) excitation winding
Leakage reactance XflWith Damper Winding rectangular axis leakage reactance XDd、XDq；(3) stator winding resistance Rs, excitation winding resistance Rf, Damper Winding directly hands over
Axis resistance RDd、RDq；(4) rotor machinery inertial time constant Tj。
Simulated machine size is usually the 1/100 of prototype machine hereinafter, capacity is 1/30000 or less prototype machine.It is existing
The structure of the synchronously simulating motor of technology has the following deficiencies: that 1, simulated machine usually reduce to the structure of prototype machine and sets
Meter, due to using solid rotor identical with prototype machine, eddy current damping effect is difficult to reach by adjusting with prototype machine
Unanimously, to influence the consistency of ultra-transient reactance per unit value.2, since 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, reduces so as to cause time constant is opposite.Existing simulation
Stator winding slot in motor and excitation slot, since notch is using the design of opening or half opening, the wider width of slot, depth compared with
Shallowly, so that leakage reactance can not be increased；Simultaneously as using the slot body structure of parallel slot, to limit winding and around radical
Increase, so that resistance value is relatively large.To be difficult to realize the accurate simulation to prototype machine.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of synchronizations of small electrical excitation non-salient pole
Simulated machine enables simulated machine effective its object is to improve the structure of the stator of synchronously simulating motor and rotor
Simulation prototype machine electromagnetism and electromechanical properties.
To achieve the above object, according to one aspect of the present invention, a kind of synchronously simulating motor is provided, including stacked
Stator and laminated rotor, the laminated stator are set to the circumferential direction of the laminated rotor；
The laminated stator is evenly arranged with stator slot in the circumferential, and the adjacent stator slot shape is at parallel teeth；
The laminated rotor successively includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction；Institute
The laminated rotor is divided into multiple fan-shaped regions, each fan-shaped region by the pole center line for stating synchronously simulating motor
On be arranged at intervals with multiple Damper Winding slots and excitation winding slot, between excitation winding slot and Damper Winding slot adjacent thereto
Form parallel teeth；
The amortisseur bar matched with the Damper Winding slot, the both ends of the amortisseur bar are provided in each Damper Winding slot
It is connect respectively with the first pressing plate and the second pressing plate, and Damper Winding is collectively formed 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 excitation winding slot is semi-closure
The deep trouth of mouth oblique angle round bottom, the Damper Winding slot are trapezoidal deep trouth；
Wherein, the semi-closure shape of the mouth as one speaks indicates that the ratio between the width of the notch of the slot and the groove width in the groove top portion are less than 1:2.5, pears
Shape indicates that the slot is greater than the width of bottom in the width at top, and top is arc, and deep trouth indicates slot height in the radial direction
It is greater than 3:1 with the ratio of groove width at radially 1/2 height；Oblique angle indicates to use straight transitions between the notch and slot body of slot, round
Bottom indicates that the bottom of slot is arc, trapezoidal to indicate that the slot is the inverted trapezoidal that top is wider than bottom.
Preferably, the Damper Winding slot is uniformly arranged in the circumferential direction of laminated rotor, adjacent with pole center line
Damper Winding slot is arranged by axial symmetry of the pole center line.
As it is further preferred that excitation winding slot is set to adjacent Damper Winding slot on the fan-shaped region
On symmetry axis.
Preferably, the stator slot is skewed slot in the axial direction；For weakening air-gap field slot ripples, added losses are reduced；
The harmonic leakage reactance of stator winding and excitation winding can be reduced simultaneously, improve the accuracy of leakage reactance simulation；Described in skewed slot expression
The stator lasmination of laminated stator placement straggly at an angle when laminating, so that laminating the stator for the laminated stator to be formed
The inclination angle that slot is axially relative to the central axis of laminated stator is 4 °~8 °, and inclined direction is along described stacked fixed
The circumferential section of son.
Preferably, the diameter of the laminated rotor iron core is greater than first pressing plate, first pressing plate and the second pressure
The diameter of plate is identical, and the both ends of the amortisseur bar are connect with the outside of the first pressing plate and the second pressing plate in the axial direction respectively.
Preferably, the material of first pressing plate, the second pressing plate and amortisseur bar is identical conductive metal material, described
Conductive metal material is in 20 DEG C of resistivity less than 0.02 μ Ω m.
As it is further preferred that the conductive metal material is red copper, both high conductivity requirement, while mechanical performance
Meet it is easily processed into type, be easy to strike be packed into rotor core, rigidity and ductility meet technique again and require.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, due to improving synchronization
The stator of simulated machine and the structure of rotor, can achieve the following beneficial effects:
1, the present invention uses laminated rotor, without generating eddy current damping effect using solid rotor iron core；And lead to
It crosses the vortex inducted in the Damper Winding of laminated rotor and generates damping effect, it is easier to by the design of Damper Winding so that whirlpool
Flow damping effect and prototype machine reach unanimously, can accurately simulate the ultra-transient reactance per unit value of prototype machine；
2, 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, is expanded
Groove area, increases the ratio of depth of rebate and width of rebate, to increase stator-slot leakage reactance per unit value；Excitation winding slot
Groove area is expanded, notch depth is increased due to increasing the ratio of groove depth and groove width for the deep trouth of semi-closure shape of the mouth as one speaks oblique angle round bottom
The ratio of degree and width of rebate, to increase excitation winding slot leakage reactance per unit value.Damper Winding slot is trapezoidal deep trouth, due to
The ratio of groove depth and groove width is increased, groove area is expanded, increases the ratio of depth of rebate and width of rebate, to increase
Damper Winding slot leakage reactance per unit value, reduces the resistance value of amortisseur bar；
3, the first pressing plate and the second pressing plate and amortisseur bar collectively constitute Damper Winding, to simplify rotor structure, contract
The short length of rotor in the axial direction, while also laminated rotor iron core is played, effect is firmly fixed, play rotor
The effect of pressing plate；
4, when the present invention can be realized synchronously simulating motor to the per unit value of the major electromagnetic data of prototype machine and electromechanics
Between constant simulation；Verified, the simulation error of the resistance and reactance parameter per unit value of synchronously simulating motor of the invention is lower than
5%, the simulation error of time constant is lower than 9%, and synchronously simulating motor is effectively simulated and is generated electricity as large-scale steamer
The electromagnetism and electromechanical properties of unit；Development & construction and dynamic simulation experiment of electric power system research hence for moving die system have
Significance.
Detailed description of the invention
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 schematic diagram of the synchronously simulating motor of the embodiment of the present invention 1；
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- stator yoke, 2-
Stator slot, 3- stator slot notch, 4- stator tooth；5- rotor canine tooth, the small tooth of 6- rotor, 7- rotor field coil slot, the resistance of 8- rotor
Buddhist nun's slot for winding, 9- rotor field coil slot notch, 10- rotor Damper Winding slot notch；11- pressing plate excitation winding slot, 12- pressing plate
Damper Winding slot, 13- pressing plate excitation winding slot notch, 14- pressing plate Damper Winding slot notch.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
The present invention provides a kind of synchronously simulating motor of small electrical excitation non-salient pole, including laminated stator and stacked
Rotor, the laminated stator are set to the circumferential direction of the laminated rotor；
The laminated stator is laminated by stator lasmination to be formed, and is evenly arranged with stator slot 2, adjacent institute in the circumferential
It states stator slot 2 and forms parallel teeth 4, on radial section, the stator slot 2 is deep trouth (the i.e. width of notch 3 of semi-closed port pyriform
It is less than 1:2.5 with the ratio between the groove width in groove top portion, the width at top is greater than the width of bottom, and top is arc, height radially
Degree and the ratio of groove width at radially 1/2 height are greater than 3:1)；
Increasing the height in the radial direction of notch 3 or reducing width of rebate will increase the slot leakage reactance of stator slot 2, reduce notch
3 height or increase by 3 width of notch can reduce the slot leakage reactance of stator slot 2；It can finally be adjusted together by 3 size of notch of stator slot 2
The leakage reactance per unit value for walking the stator slot 2 of simulated machine is equal with the leakage reactance per unit value of stator slot 2 of prototype machine；
The placement straggly at an angle when laminating of the stator lasmination of laminated stator so that laminate to be formed it is stacked fixed
The stator slot 2 of son forms skewed slot in the axial direction, which is 4 °~8 ° relative to the inclination angle of the central axis of laminated stator,
Inclined direction is along the circumferential section of the laminated stator；The flume structure of stator slot 2 in the axial direction, can be used for weakening gas
Gap magnetic field slot ripples reduces added losses；The harmonic leakage reactance of stator winding and excitation winding can be reduced simultaneously, improve leakage reactance
The accuracy of simulation；
Stator winding passes through laminated stator by stator slot 2, and is respectively closed with the end in laminated stator axial direction；
The design of stator winding need to match the number of turns and around radical and stator line gauge of being often connected in series.Stator winding be often connected in series the number of turns decision
In prototype machine synchronous reactance per unit value, the increase of the number of turns that is often connected in series will lead to the increasing of simulated machine synchronous reactance per unit value
Add, it is on the contrary then synchronous reactance per unit value can be reduced.And it is decided by often be connected in series the number of turns and prototype machine stator around radical and line gauge
Winding resistance per unit value；After the number of turns that is often connected in series determines, increases and make simulation electricity around the big line gauge of radical and selection radius
Machine stator winding resistance per unit value reduces, and reduces and makes simulated machine stator winding electric around the small line gauge of radical and selection radius
It hinders per unit value to increase, until consistent with the parameter of prototype machine；
The laminated rotor successively includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction；Institute
The laminated rotor is divided into multiple fan-shaped regions, each fan-shaped region by the pole center line for stating synchronously simulating motor
On be arranged at intervals with multiple Damper Winding slots 8 and excitation winding slot 7；For example, when pole center line is uniformly arranged, then by institute
It states laminated rotor and is divided into the equal fan-shaped region of multiple angles, the Damper Winding slot 8 can be in the circumferential direction of laminated rotor
On be uniformly arranged, the Damper Winding slot 8 adjacent with pole center line using the pole center line as axial symmetry be arranged；Except in magnetic pole
Where heart line outside position, excitation winding slot 7 is set on the symmetry axis of adjacent Damper Winding slot 8；Excitation winding slot 7 and and its
Parallel teeth is formed between adjacent Damper Winding slot 8；Parallel toothing forms magnetic field in excitation winding slot and Damper Winding slot
Between be uniformly distributed, avoid because part be saturated weaken reactance parameter simulation precision；
Excitation winding slot 7 be semi-closed port oblique angle round bottom deep trouth (i.e. the ratio between the width of notch 9 and the groove width in groove top portion are less than
1:2.5 uses straight transitions between notch 9 and slot body, the bottom of slot is arc, height and radially 1/2 height radially
The ratio for locating groove width is greater than 3:1)；The width of the Damper Winding slot 8 take cutting technique allow minimum value so that it is described damping around
Group slot 8 is that trapezoidal deep trouth (is wider than the inverted trapezoidal of bottom, height radially and groove width at radially 1/2 height at the top of i.e.
Ratio is greater than 3:1)；
Increasing 9 height of notch of excitation winding slot 7 or reducing 9 width of notch will increase the slot leakage reactance of excitation winding slot 7,
Therefore slot leakage reactance that is on the contrary then can reducing excitation winding slot 7 is leaked by the slot that 9 size of notch can finally adjust excitation winding slot 7
Anti- per unit value is equal with the per unit value of slot leakage reactance of excitation winding slot 7 of prototype machine；
Excitation winding passes through laminated rotor by excitation winding slot 7, and closes respectively with the first pressing plate and the second pressing plate
It closes；Excitation winding design need to match turns-in-series and around radical, line gauge, and by no-load back electromotive force, excitation winding electricity is close, prototype
Motor excitation winding resistance per unit value codetermines；Wherein excitation winding electricity heave root is determined according to rotor cooling condition；
Increasing 10 height of notch of Damper Winding slot 8 or reducing 10 width of notch will increase 8 leakage reactance of Damper Winding slot, subtract
10 height of small-rabbet or increase by 10 width of notch can reduce the slot leakage reactance of Damper Winding slot 8, therefore, final by 10 size of notch
The per unit value for adjusting the slot leakage reactance of Damper Winding slot 8 is equal with the per unit value of slot leakage reactance of equivalent damping winding of prototype machine；
It is provided with the amortisseur bar matched with the Damper Winding slot 8 in each Damper Winding slot 8, the two of the amortisseur bar
End is connect with the first pressing plate and the second pressing plate respectively, and Damper Winding is collectively formed 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；It, can will since laminated rotor and being laminated by rotor pack forms
The diameter design of first pressing plate and the second pressing plate must be more smaller than laminated rotor, and amortisseur bar can be passed through to resistance in the fabrication process
Buddhist nun's slot for winding, and the first pressing plate and the second pressing plate are stretched out from the both ends of laminated stator, with the first pressing plate and the second pressing plate
Outside welding in the axial direction, 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 less than 0.02 μ Ω m, and mechanical performance meet it is easily processed into type, be easy to strike loading rotor
Iron core simultaneously reaches rigidity and ductility that technique requires, such as red copper can be used.
Embodiment 1
Synchronously simulating motor according to the present invention is as shown in Figure 1-3, the capacity ratio of itself and prototype machine is 1:120000.
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 for walking the laminated stator of simulated machine uses flume structure, and each stator lasmination is to rotor direction of rotation when laminating
Oblique 1 stator slot away from；The laminated stator is provided with 36 stator slots 2 of equal distribution, the formation of adjacent stator slots 2 in the circumferential
Parallel construction, the stator tooth that width is 7 millimeters；
For stator slot 2 using the deep trouth of semi-closed port pears type, notch is 1.3 millimeters deep, 3.5 millimeters wide, has both met slot opening symbol
The requirement that inserting-coil process needs is closed, also meets requirement of the stator leakage reactance per unit value to prototype machine parameter simulation, notch and fixed
The ratio between top width of pilot trench 2 is 1:2.35, and radially, the ratio between groove width at groove depth and groove depth 1/2 is 6.2:1；Stator slot 2
Bottom and laminated stator periphery formed 1 width of stator yoke be 25 millimeters, due to the peak value magnetic in stator tooth 4, stator yoke 1
Close is 1.63T, avoids the saturation of stator tooth 4, stator yoke 1；The number of turns that is often connected in series in the three-phase of stator winding is 144 circles, and
It is 35 around radical, stator copper factor is 65%, meets technique requirement, while meeting synchronous reactance per unit value and stator winding
Resistance per unit value is identical as prototype machine.
The laminated rotor of the synchronously simulating motor successively includes the first pressing plate, the second pressing plate and stacked in the axial direction
Rotor core；The laminated rotor has two pole center lines, which is divided into four equal right angles and is fanned
Shape region；20 Damper Winding slots are uniformly arranged in the circumferential direction of laminated rotor, and the damping adjacent with pole center line around
Group slot is arranged by axial symmetry of the pole center line；On each right angle fan region, set between adjacent Damper Winding slot
It is equipped with excitation winding slot, laminated rotor is provided with 16 excitation winding slots altogether.The adjacent Damper Winding of pole center line or so
Canine tooth is formed between slot, excitation winding slot and Damper Winding slot adjacent thereto form small tooth, and small 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 that the present invention is real
Apply rotor press plate (the first pressing plate, the second pressing plate) structural schematic diagram of the synchronously simulating motor of example 1；As Figure 2-3, excitation around
Group slot 7 is the deep trouth of semi-closed port oblique angle round bottom, and top bevel angle is 30 degree, and notch and outside groove width ratio are 1:2.8, groove depth 43
Millimeter, every slot turns-in-series are 155 circles, and rotor copper factor meets technique requirement for 65%；Damper Winding slot 8 is trapezoidal depth
Slot, notch is 4 millimeters deep, and 3 millimeters of slot opening, Damper Winding slot notch 10 is 3.1 millimeters deep, 0.6 millimeter wide.5 bottom of rotor canine tooth
9.8 millimeters of width, 3.6 millimeters of 6 bottom width of tooth small, the peak value flux density 1.85T of rotor canine tooth 5 and small tooth 6 avoids rotor tooth
The supersaturation in region.Above-mentioned design parameter is able to satisfy wanting for simulation of the simulated machine reactance parameter per unit value to prototype machine
It asks.
Rotor press plate shown in Fig. 3 is 5 millimeters smaller than the outer diameter of rotor core, width of the excitation winding slot on pressing plate with encourage
Width of the magnetic slot for winding on rotor core is average 1 millimeter big；Damper Winding slot 12 on rotor press plate is compared to rotor core
Two sides of the Damper Winding slot 8 on radial section resistance of each broadening 0.25 millimeter of the width with allowance weld, on rotor press plate
The notch 14 of Buddhist nun's slot for winding is open slot.The amortisseur bar matched with Damper Winding slot 8 is provided in Damper Winding slot 8.Welding
When, the first pressing plate and the second pressing plate are stretched out in the both ends of amortisseur bar respectively, and in the case where forcing tight rotor core and pressing plate outside,
Weld together with rotor press plate, rotor press plate is used as Damper Winding end plate simultaneously.In the present embodiment, amortisseur bar and rotor press plate
It is all made of red copper material.
It the partial parameters for the simulated machine designed according to the present embodiment and its is compareed with prototype machine parameter and is shown in Table 1 institute
Show.
The simulated machine of 1 embodiment 1 of table and the partial parameters of prototype machine compare
As can be seen from Table 1, the simulation error of the resistance of synchronously simulating motor of the invention and reactance parameter per unit value
Lower than 5%, the simulation error of time constant is lower than 9%；Illustrate that synchronously simulating motor of the invention can effectively simulate conduct
The electromagnetism and electromechanical properties of large turbine-generator set.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of synchronously simulating motor, which is characterized 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 shape is at parallel teeth；
The laminated rotor successively includes the first pressing plate, the second pressing plate and laminated rotor iron core in the axial direction；It is described same
The laminated rotor is divided into multiple fan-shaped regions by the pole center line for walking simulated machine, on each fan-shaped region between
Every being provided with multiple Damper Winding slots and excitation winding slot, formed between excitation winding slot and Damper Winding slot adjacent thereto
Parallel teeth；
The amortisseur bar matched with the Damper Winding slot, the both ends difference of the amortisseur bar are provided in each Damper Winding slot
It is connect with the first pressing plate and the second pressing plate, and Damper Winding, the stator is collectively formed with the first pressing plate and the second pressing plate
Slot is the deep trouth of semi-closed port pyriform, and the excitation winding slot is the deep trouth of semi-closed port oblique angle round bottom, and the Damper Winding slot is ladder
The deep trouth of shape；
The semi-closed port indicates that the ratio between the width of the notch of the slot and the groove width in the groove top portion are less than 1:2.5, and pyriform indicates the slot
Width at top is greater than the width of bottom, and top is arc, and deep trouth indicates slot height in the radial direction and radially 1/2
The ratio of groove width is greater than 3:1 at height；Oblique angle indicates that, using straight transitions between the notch and slot body of slot, round bottom indicates the bottom of slot
Portion is arc, trapezoidal to indicate that the slot is the inverted trapezoidal that top is wider than bottom.
2. synchronously simulating motor as described in claim 1, which is characterized in that week of the Damper Winding slot in laminated rotor
It is uniformly arranged upwards, the Damper Winding slot adjacent with pole center line is arranged by axial symmetry of the pole center line.
3. synchronously simulating motor as claimed in claim 2, which is characterized in that on the fan-shaped region, excitation winding slot is set
It is placed on the symmetry axis of adjacent Damper Winding slot.
4. synchronously simulating motor as described in claim 1, which is characterized in that the stator slot is skewed slot in the axial direction.
5. synchronously simulating motor as claimed in claim 4, which is characterized in that the inclination angle of the stator slot is 4 °~8 °.
6. synchronously simulating motor as described in claim 1, which is characterized in that the diameter of the laminated rotor iron core is greater than institute
State the first pressing plate, first pressing plate is identical as the diameter of the second pressing plate, the both ends of the amortisseur bar respectively with the first pressing plate with
And second pressing plate in the axial direction outside connection.
7. synchronously simulating motor as described in claim 1, which is characterized in that first pressing plate, the second pressing plate and damping
The material of item is identical conductive metal material, and the conductive metal material is in 20 DEG C of resistivity less than 0.02 μ Ω m.
8. synchronously simulating motor as claimed in claim 7, which is characterized in that the conductive metal material is red copper.
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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 CN106451838A (en) | 2017-02-22 |
| CN106451838B true CN106451838B (en) | 2019-06-18 |
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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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