A winding embedding method for a single-winding multi-speed motor

Abstract

The invention discloses a winding winding and embedding method of a single-winding multi-speed motor. The original winding forms are as follows: 1 coil group is individually formed into 1 group, a total of 15 groups, 2 coils are combined into 1 group, a total of 6 groups, The combination of 3 coils is wound into 1 group, and the total 3 groups are changed to: the original 1 coil group + the original 2 combined coil groups are wound together to form a 1+2 coil group, a total of 6 groups, and the 3 original single coil groups are connected together A total of 3 sets of 1+1+1 coils are wound, and the original 3 coil sets remain unchanged; the order of successive insertions is adjusted to reduce the difficulty of back and forth threading, and to ensure that the distribution coefficient of the windings remains unchanged after insertion; The winding winding and embedding method of the winding multi-speed motor has the advantages that the number of winding dies when the multi-speed motor is wound and unloaded is small, the welding head is few when the wire is arranged, the quality is stable and reliable, and the wire embedding efficiency is high.

Description

technical field [0001] The invention relates to a winding embedding method of a single-winding multi-speed motor with less number of winding modules for loading and unloading of the multi-speed motor, fewer welding joints during wire arranging, stable and reliable quality, and high wire embedding efficiency. Background technique [0002] In the prior art, one wind turbine needs to be equipped with one oil pump lubricating motor and one cooling motor. Considering that the ambient temperature difference in the operation of the wind turbine is relatively large, usually between -40°C and +55°C, the generator set system In order to save energy during design, the lubricating motor and cooling motor of the oil pump are selected as two-speed motors. At present, the traditional process of manufacturing double-speed motor windings at home and abroad: a coil group is formed into a separate group during winding, so that not only the number of winding modules is more when winding, loadin...

AI Technical Summary

Problems solved by technology

At present, the traditional process of making double-speed motor windings at home and abroad: a coil group is formed into a separate group during winding, so that not only the number of winding modules is more when winding, loading and unloading, but also there are many welding heads when arranging the wires. The poor quality of the head will cause the asymmetry of the three-phase resistance of the winding, and the formation of circulating current or magnetic circuit asymmetry inside the winding, which will seriously affect the life of the motor.

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