SU1032533A1 - Combined electric machine winding - Google Patents

Abstract

1. A COMPLETE ELECTRIC WINDOW, containing twelve distributed coil groups connected in phases into two three-phase stars, the conclusions of which form three-phase clamps for LK1SNOSTI P, and the zero points are connected to two additional terminals for pole polarity 2 & In order to expand the application, in the first phase, groups are connected in series with numbers 1 according to and numbers 4 are opposite for one star, numbers 10 and opposite and numbers 7 according to another star, and the numbers of groups of other Fax alternate with an interval of Four groups, where P 2 and P2 - 3. 2. Winding POP.1, characterized in that, in order to improve the parameters, each group i contains two concentric coils with steps along the grooves Y equal to (L 8 and 6, and the outer coil made single-layer and has twice the larger number in tkov than the inner coil, the implementation of a two-layer.

Description

R2. one

 .f 11 11 The invention relates to winding of combined electric machines and can be used, for example, in single-machine converters, three-phase ferromagnetic reactors with a rotating magnetic field of a rolling-rotor motor, and D. There are 12 combined windings of electric machines: distributed coil groups,. -connected phases in two parallel branches, the beginnings of which form three-phase clamps for polarity P - 1, and the ends connected to the other pins for polarity Р 2 - б fl. ; The lack of these windings is limited in scope. Three-phase windings of electric machines are also known, made of one-double-layer, each coil group of which contains end coils, the external coil has a step along the grooves Y t -1 and races: it is laid in the grooves one layer, having twice the number of turns, the other coils, located in the slots in two layers, where 6Р 7/3 is the number of slots per pole and phase; Ti 2 / 2P - pole division dl; polarity P winding; 2 - the number of holes 2. The lack of known windings is the impossibility of using them as combined for operation with two numbers of poles. The known and combined winding for AC machines contains 12 distributed coil groups, connected in phases two parallel branches, the beginnings of which form three-phase clamps for polarity Р 4 J and ends connected to two additional leads eI for polarity Р - 3f the phase of which is connected in series according to the group with numbers 1 and 4 in one branch, 7 and 10 in the other, the numbers of groups of phases in black, two groups are juxtaposed with JB interval, and the ends of groups 4, 8, 12 and 2 are connected to additional terminals, b , 10 {3, Lack of known winding limited e application. The purpose of the invention is the expansion of i field of application by obtaining the numbers of pairs of poles E, 2, as well as the improvement of parameters, by winding a single-double layer. This target is achieved by the fact that in a coiled winding containing twelve distributed coil groups connected in phases into two three-phase stellar, the conclusions of which form three-phase clamps and zero for polarity points are connected to two additional wires for polarity P, in the first phase groups are connected in series with numbers 1 according to and numbers 4 are opposite to one star, numbers 10 are opposite and numbers 7 according to another star, and the numbers of groups of other phases alternate with an interval of four groups. Each group contains two concentric coils with steps along the grooves Y equal to 8 and b, with the outer coil being single-layered and having twice the number of turns than the inner one being double-layered. Figure 1 shows the scheme of the proposed winding in a single-two-layer performance; figure 2 is a diagram of its EMF groups for the polarity of p, - f x | - i “The winding (FIG. 1) is made in 36 slots from 12 distributed coil groups with numbers from 1 to 12th. The first phase is connected in series with group 1 according to and 4 opposite in one branch, 10 opposite and 7 according to another . The beginnings of the branches form a C1 phase clamp for the polarity Pj | t 2 (see upper row of current direction arrows in FIG. 1), and their ends are connected to DV5 with additional terminals 01 and 02 for the P2 3 pole (see lower row of current direction arrows). Phases C2 and Sz are made similarly, and their group numbers alternate at intervals of four groups. From the diagram of Fig. 2, where the numbers of groups are assigned to the EMF vectors, it is clear that the field with the polarity P 2 is on. conclusions 01 and 02 EMF does not lead. Similarly, a field with a P2 3 pole does not induce an emf at the terminals C1, C2, and C3. If the winding is made in 36 slots of a two-layer with U 7 and three coils in a group, then the winding coefficients for P 2 tl T 3 are Kd52 0.902, Ko5z 0622 and oS2 (winding in 36 slots of one-two-layer (figure 1) with steps W. - 8 and WB (the outer coil has twice the number of turns than the inner one) we get QbG2 0.945, Ko5-s 0.644 and K Krd2 Cd g. That is, the winding parameters are improved and the use of copper increases by 0.609: 0.561 1 , 09 times. The winding can be used on the stator of combined electric machines as a three-phase 2P i i pole and single-phase 2Р2 pole .

-r

C3

Phi1.1

Claims (2)

1. COMBINED ELECTROMECHANICAL WINDING, containing twelve distributed coil groups connected in phases into two three-phase stars, the terminals of which form three-phase clamps for two-pole P ^, and zero points are connected to two additional terminals for pole P ₂ , which that, in order to expand the application, in the first phase the groups are connected in series with numbers 1 according to and numbers 4 counter for one star, numbers 10 and counter and numbers 7 according to another star, and the numbers of groups of other fax alternate with an interval of four groups, where P <= 2 and P ₂ = 3. 2. Winding pop. 1, I am distinguished by the fact that, in order to improve the parameters, each group contains two concentric coils with steps in grooves equal to 8 and 6, moreover, the outer coil is single-layer and has twice as many turns as the inner coil, made of a two-layer. (Oh f 103 2533