Winding and embedding method of single-winding group multispeed motor

Abstract

The invention discloses a winding and embedding method of a single-winding group multispeed motor. The existing winding form includes that one coil assembly is a group, fifteen groups of coil assembly are arranged, two coil assemblies are combined and winded into a group, six groups of coils are arranged, and three coils are combined and winded into a group, three groups of coils are arranged. One existing coil group and two existing combined and winded coil groups form six groups of one plus two coil groups, three existing single coil groups are connected and winded into three one-plus-one-plus-one groups, and the exiting coil group which is formed by combining and winding three coils is not changed. Line embedding order is adjusted, difficulty of threading back and forth is reduced, and after a line is embedded, a winding distribution coefficient is guaranteed to remain unchanged. When the multispeed motor winds, the winding and embedding method of the single-winding multispeed motor is small in times of winding former assembling and disassembling, small in plumb joints when the line is displaced, and is stable and reliable in quality and high in line embedding efficiency.

Description

technical field [0001] The invention relates to a winding embedding method of a single-winding multi-speed motor with less number of times of winding modules for loading and unloading of multi-speed motors, fewer welding joints when arranging wires, stable and reliable quality, and high wire embedding efficiency. Background technique [0002] In the prior art, a wind turbine needs to be equipped with an oil pump lubricating motor and a 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 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 u...

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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