SU1372512A1 - Three-phase two-layer pole-switchable winding - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to simplify the manufacturing technology, reduce the specific material consumption and improve the energy performance of engines. The winding consists of 18 coil groups (CG) and is performed in increments, which leads to a simplification of the manufacturing technology of the two-speed winding and saving copper. The winding is laid in 90 slots. The distribution of the coil groups in half phases of each phase is given. The winding has high winding factors. 1 il. (I

Description

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The invention relates to pole-selectable windings and can be used in multi-speed AC motors.

The purpose of the invention is to simplify the manufacturing technology of the winding, reduce the specific material consumption and improve energy performance.

The drawing shows a winding circuit with the ratio of the numbers of poles 2p:, the coils of which are laid in 90 slots with numbers from 1 to 90 in increments.

The winding is three-phase two-layer, symmetrical and contains 18 coil groups with numbers from 91 to 108. The number of coils in each group is determined in accordance with the numerical number of: 6,5, A, 6,5,4,6,5, A, 6.5, A, 6.5.4, 6.5.4, with the coil groups with sequence numbers 107, 91, 93 included in the first half-phase of the first phase, the coil groups having numbers 98, 100, 102 - in the second half-phase the first phase of the winding, the coil groups with numbers 101, 103, 105 - into the first half-phase of the second phase, and the coil groups with numbers 92, 94, 96 - into the second half-phase of the second phase, the coil groups The numbers 95, 97, 99 are included in the first half-phase of the third phase, and the coil groups 104, 106, 108 are included in the second half-phase of the third phase, while the coil groups with the order numbers 93, 94, 95, 99, 100, 101, 105, 106, 107 are included in opposite directions with respect to the other coil groups. To form a magnetic field with the number of poles 2p 10, power is supplied to the clamps JUS, JUS 7, JUS p for operation for the number of poles 2p, power is fed to the clamps 8C ,, 8C2, 8Cj, shorting the clamps 10 C ,, JUS g, JUS i.

Thus, the winding contains a smaller number of coil groups and, therefore, its manufacturing technology is simple.

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The winding ratios of the proposed winding (, 855; K 0.842;, 8485) are higher than in the known winding. Consequently, the energy performance of the two-speed engine is improved. The proposed winding is performed in increments, therefore, compared with the known, the consumption of copper for its manufacture is reduced. Invention Formula

Three-phase two-layer pole-switchable winding with switching pole numbers according to the scheme YY // 1 in the ratio 2p: 2p, 10: 8 in the number of stator slots with six output ends, containing coils, within each phase, divided into two half-phases with a series connection of coil groups in each semi-phase, characterized in that, in order to simplify the winding technology, reduce the specific material consumption and improve energy performance, the winding coils are divided into eighteen coil groups with numbers from 91 to 108 sec. the number of coils in each group, defined in accordance with the numerical series of 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, the coil groups with the order numbers 107, 91, 93 are included in the first half-phase of the first phase, the coil groups with numbers 98, 100, 102 - in the second half-phase of the first phase of the winding, the coil groups with numbers 101, 103, 105 - in the first half-phase second the phases, and the coil groups with numbers 92, 94, 96 - in the second half-phase of the second phase, the coil groups with numbers 95, 97, 99 included in the first half-phase of the third phase, and the coil groups 104, 106, 108 - in the second floor ase third phase, wherein the coil groups with sequence numbers 93, 94, 95, 99, 100, 101, 105, 106, 107 includes oppositely relative to the rest of the coil groups.

Claims (1)

The formula * of the invention Three-phase two-layer pole switchable winding with switching the number of poles according to the YY / l scheme in the ratio 2p: 2p, = 10: 8 in the number of stator slots z = 90 with six output ends, containing coils, within each phase, divided into two half phases with a series connection of coil groups in each half-phase, characterized in that, in order to simplify the manufacturing technology of the winding, reduce specific material consumption and improve energy performance, the coil of the winding is divided into eighteen coil groups with measuring numbers from 91 to 108 with the number of coils in each group, determined in accordance with the number series 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 4, with coil groups with serial numbers 107, 91, 93 included in the first half phase of the first phase, coil groups with numbers 98, 100, 102 in the second half phase of the first phase of the winding, coil groups with numbers 101, 103, 105 in the first half-phase of the second phase, and coil groups with numbers 92, 94, 96 in the second half-phase of the second phase, coil groups with numbers 95, 97, 99 are included in the first half-phase of the third phase, and coil groups 104, 106, 10 8 - in the second half-phase of the third phase, while the coil groups with serial numbers 93, 94, 95, 99, 100, 101, 105, 106, 107 are included counter to the rest of the coil groups.