SU1092653A1 - Rotor of salient-pole electric machine - Google Patents

Abstract

ROTOR OF A CONSTANT ELECTRIC ELECTRIC MACHINE, containing poles having cores with longitudinal excitation couplings and tips with an axial groove on the outer surface, in which the conductors of an etching excitation transverse winding are laid, in order to simplify the design and manufacturing technology, in the end portions of each tip, radial grooves communicating with the axial grooves are made, in which the frontal portions of the control transverse winding are located and between the tip and the longitudinal to The exciter is located axially located transverse winding conductors connected in series with conductors of this winding arranged in grooves on the outer surface of the lugs.

Description

1092653j

This invention relates to electron-conductor rods for transverse engineering and can be used for coils. The main winding of the coils, in particular, in synchronous machines with cores on the core, creates to ensure their synchronous steady-longitudinal field of excitation. The ability to work parallelly with the grooves of the lugs of the rods with a network is identical in the frontal parts so as to control the transverse direction so that they create a transverse winding (UPR) on the rotor, for example, the synch winding of the wave or loop tyrone compensator increases -Pa, whose magnetic axis is shifted to produce reactive power, Regarding the magnetic axis of the main one in the consumption mode up to the nominal excitation field by 90 zl.grad. Rasnalnoy, and briefly essential two options transverse obyschy nominal magnitude. Winding: two-layer winding loop

Known pole-type rotor is a com-type and double-layered wave disconnector, in addition to the basic C2 J

However, the KJO is cumbersome.

, in the pole tips of the size in the frontal parts x. Application cross.

The CPD is shifted by 90 zl.grad.d loop winding or wave

relative first. Calculations show-types causes the use of

Is it necessary that the UPR should provide extra extra jumpers, connecting the magnetising force of no less than the UPR cores, consisting of

10% relative to the main longitudinal insulated conductors,

excitation winding. On the first, the KJV Exits in the frontal zone

approximation is the same ratio of i-parts from the grooves of a massive pole

copper cross-sections of the indicated tip and intersect the short-wound windings of C jawing segments, in which also the disadvantage of this device is to run grooves that weaken

It is the difficulty of its constructive mechanical strength. Further, for large electric parts, the UPR goes into the zone above the mashines, due to the fact that, in connection with the 30th parts of the main winding, the UPR is powered by an independent source between poles, where the mechanic winding must be connected several times with and secured from

howl If it is done out of solid centrifugal force. Connecting the type of conventional damping vshny secured with

cells, to create the necessary jj-resistant boxes, slats and retaining

magnetizing force during feeding of the segments, the latter in turn

An unauthorized source is fused with a cable # 1 fixed on the frame; large currents (sotnit torus. Ottzhki made in the form of spyamper) with an unacceptable low eg -le and do not provide proper

tenths of a volt. The side of the rigidity of the structure that

The UPR coils in the polar ones have a negative effect on the robust ends of the neighboring poles, as a whole, the front ends of the yatushes are

located in the interpolar is simple- In addition, assembly technologies are difficult, where they are structurally difficult because of the need for soldering

securely fasten from large connecting busbars,

centrifugal force. At the same time, each of the KJVs located in the immediate vicinity should be one in front of the clock. It is inconvenient to disconnect to ensure the removal and repair of the rotor,

the poles and rods of the stator winding, JQ. So, to remove the pole of the rotor, which is not normally removed through the window, then before all the teams

removing poles. busbars connecting rods adjacent

The closest to the invention of populums, and after setting the pole

technical essence and achievable place to redeem them. Inconvenient

The result is a rotor across the pole - also disassembly and assembly of the mount.

An electric machine in which a segmented cylindrical surface of the tracks and the same is executed in the form of a retaining belt. Besides tggo, such

nechnikov all poles performed reinforcement does not provide proper

Four grooves in which many-rigidity are laid and not reliably securing parts from movements under the action of centrifugal forces. Celb invention - simplified design and manufacturing technology. This goal is achieved by the fact that in a rotor a pole-shaped electric machine containing poles having cores with longitudinal and excitation spouts and tips with axial grooves on the outer surface, in which the conductors of the control transverse winding are laid, are connected in the end portions of each tip. with axial grooves radial grooves, grooves in which the frontal parts of the control transverse winding are located, and between the tip and the longitudinal axis of the excitation are placed axially Assumption conductors transverse winding connected in series with raspolozhennvsh in grooves on the outer surface of the tip conductors of the winding. FIG. Figure 1 shows the rotor pole of a pole-type electric machine with a transverse winding control, general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; on g. A is an axial groove with control transverse windings laid in it, cross section (node I in Fig. 1); in fig. 5 shows an insulating box with the frontal parts of the control transverse windings laid in it, section B-B in FIG. one; in fig. 6 shows the conductors of the control winding under the head, section G-Y in FIG. 3; in fig. 7 is a diagram of the direction of currents in the conductors of the transverse control winding; the magnetic axis of this winding The rotor device of a pole-mounted electric machine with a transverse control winding contains a rotor core (not shown) with attached shaft ends (not shown). On the core of the rotor there are poles 1 having cores 2 and tips 3. On tips 3 poles 1 axial grooves 4 are made, which are deepened in sections of the end portions 5 of the tips so that the end portions 5 are cut through through 3, forming radial grooves 6 Under the tips 3, between them and the longitudinal excitation coils 7, there are insulated 1534 insulating boxes 8 and 9 along the entire length of the poles on both sides. Under the end portions of the 5 tips 3 to the cores 2 of the poles 1 are insulated boxes 10. The conductors 11 of the control transverse winding 12 are laid in axial grooves 4 and in the insulating boxes 10, 8 and 9. For fixing the conductors 11 in insulating boxes 8 and 9 serve as gaskets 13. For fixing the conductors 11 in the axial groove serve gaskets 14, conductors 11. Gaskets 14 are fixed in the axial groove with wedges 15. Between the core and insulating boxes 8 and 9 are installed the shields 16 with vent holes 17. If the axis of symmetry 18 a pole 1 to carry out the longitudinal section plane, it will share the pole 1 into two equal canvas. In each of the 3 halves of the pole, sections of the transverse control winding are made. These sections are laid in the following order: the supply end 19 of the conductor 11 is fixed on the end side of the core, stretched through the insulating box 10, laid in the extreme axial groove 4 of the half pole located to the right of the axis of symmetry 18. At the opposite end of this groove, through radial groove 6, is brought into insulating box 8, which it passes again to the side of the pole, on which the feed end 19 is fixed, then through radial groove 6, it is again pulled into the same axial groove 4, etc. . The conductor 11 is laid in this manner until the extreme axial groove is filled with the conductor 11. 4 and the insulating box 8. Thus, the first section of the control transverse winding 20 is formed from the conductor 11 laid in one axial groove 4 and one insulating box 8. Then the conductor 11 is drawn out and laid in the second axial groove 4 poles, at the opposite end of which, through the radial groove 6 and the insulating box 10, it is led out into the insulating box 9, which has been retracted to the side of the pole, on which the feed end 19 of the conductor 11 is fixed, then through the insulating box 10 and the radial joint From 6 it is again brought into the same axial groove 4, etc. The conductor 11 is laid in this way until another axial groove 4 and insulating box 9 is filled with conductor 11. This forms the second section of the control transverse winding 21. Then conductor 11 passes through another insulating box 10 and radial groove 6 put out and laid into the extreme axial groove 4 of the half pole located to the left of the axis of symmetry 18. At the opposite end of this groove, through the radial groove 6, it is put into the insulation box 8 of this half pole that passes through the insulating box 10 and the radial 6 th groove again laid in the same slot, etc. before filling said axial groove 4 and insulating box B. This is the third section 22 of the control transverse winding in this KPIM fashion. Then the conductor 11 is laid in the second axial groove 4 and the insulating box 9 of the same half pole with the same sequence, forming the fourth section of the control transverse winding 23, the end 24 of which is fixed on the core 2 with the pads 25 Each pole can have a larger the number of axial grooves and under the pole tip a correspondingly larger number of insulating boxes was installed in order to produce a larger number of UPR sections. As can be seen from the sequence of laying (winding) the conductor 11 in the sections of the right and left halves of the pole, the winding is carried out in one direction. In the described winding sequence, on the right side of the tip 3, the winding in the right and left half of the pole is complete clockwise. Such a winding order makes it possible to obtain the action of a magnetizing force across the tip 3 when current flows along the pole conductors. In the frontal parts the conductor 11 is placed in the insulating boxes 10 during winding: the position of the conductor 11 is shown in FIG. 4-6, where and is the conductor laid first; b is the conductor laid second; c and o are third and fourth respectively, etc. The ends 19 and 24 of the conductor 11 of the control transverse winding are connected to the same ends of the adjacent poles (not shown). Sections of each pole are connected in series in such a way that the currents in all conductors placed in the axial grooves of the pole tip have the same direction, and the currents in all the conductors placed under the tip have the opposite direction. The direction of the currents in the conductors of the axial grooves and in the conductors under the tips on the adjacent poles is reversed. The device works as follows. A longitudinal field winding is placed on the cores of all poles of the rotor, creating the main operating magnetic field of excitation. In the axial grooves of the 4 tips 3 and below, in the insulating boxes 8 and 9, a control transverse winding 12 is placed, the sections of which cover each half of the pole piece. A control current is also applied to this winding. In the diagram of FIG. 7 plus sign (+) is shown on -t. Direction of current in conductors away from us, dots () indicate the direction of currents in the direction of us. With such directions of currents in the UPO conductors, a magnetic field is created across the longitudinal axis of the pole. The magnetic flux passes along the transverse axis of the pole i.e. in the middle (26) between adjacent poles. Thus, the field of the CPR is shifted relative to the main field of excitation by 90 degrees. With appropriate regulation of the excitation current in the CPR, which is carried out in the general case simultaneously with the regulator. By driving the field current in the longitudinal winding, the reactive power of the compensator is widely controlled while maintaining its synchronous stability. When using the proposed UPO rotor device, its coils are compactly placed within each pole of the rotor, while the short frontal parts of this winding are securely fastened under the end parts of the tips, abutting them. UPR connections between the poles are made with just one conductor. similar to the way the main field winding is connected. The design of such connections is used on any electropolar electric machine, so it is well established and reliable.

By applying the proposed UPR design, it is simplified to fasten it in the frontal parts, eliminating the need for using bandage segments and strips fastened with straps, while at the same time ensuring proper rigidity of the attachment, which simplifies the design and improves the reliability of the machine.

The assembly of the poles and the rotor as a whole is greatly simplified. All sections of the UPA, located at each pole, can be made of one single piece of wire (from the coil),

I did not resort to soldering. Only structurally simple inter-pole connections of this winding are soldered, therefore, the amount of soldering work on the rotor is significantly reduced and the solder is saved.

With the use of the proposed device, the convenience of repair and maintenance of the rotor is greatly improved. In order to remove the rotor pole, it is not necessary to solder the numerous connecting busbars and disassemble the complicated mechanism of their fastening on the rotor, and when putting the pole into place it is not necessary to solder these joints again and assemble the connecting busbar fastening mechanism.

 -A IS W I I

fig, g in i

Claims (1)

ROTOR OF A CERTAIN POLE ELECTRIC MACHINE, containing poles having cores with longitudinal excitation coils and tips with axial grooves on the outer surface, in which conductors of the control transverse excitation winding are laid, characterized in that, in order to simplify the design and manufacturing technology, radial grooves communicating with axial grooves are made in the end parts of each tip, in which the frontal parts of the control transverse winding are located and between the tip and the longitudinal cut Coy excitation conductors are arranged axially arranged transverse winding connected in series with the spaced grooves in the outer surface of the tip conductors of the winding. g