Stator winding embedding method of multi-phase low-voltage large-capacity direct-drive wind turbine

Abstract

The invention discloses a coil inserting method for a stator winding of a multiphase low-voltage high-capacity direct-drive wind-driven generator, which is characterized by comprising the following steps: a, respectively arranging pay-off reels at both sides of a stator; b, respectively leading copper wires on the two pay-off reels into two coil inserting grooves, and performing coil inserting; c, when the number of coils which are led out from one pay-off reel and inserted in one coil inserting groove is half the number of the coils required to be inserted in the coil inserting groove, directly leading the copper wire of the pay-off reel into the other coil inserting groove, and using the other pay-off reel to perform subsequent coil inserting operation on the coil inserting groove; and d, after the coil inserting operation of the whole stator is finished, gathering a lead-in winding and a lead-out winding in the same groove according to the equiphase principle, and leading out. The stator winding coil inserting method realizes the double-side pay-off and one-side lead-out of a multiphase low-voltage high-capacity motor, enables the motor winding structure to be simpler, improves the coil inserting speed and ensures the coil inserting quality more reliably.

Description

technical field [0001] The invention relates to wind power generator manufacturing technology, in particular to a multi-phase low-voltage large-capacity direct-drive wind power generator stator winding embedding method. Background technique [0002] At present, for multi-phase low-voltage large-capacity direct-drive wind turbines, due to low speed, large number of poles, very large number of stator slots, and large cross-sectional area of ​​wires, please refer to figure 1 as shown, figure 1 This is the expansion diagram of the stator winding using the traditional multi-phase low-voltage large-capacity direct-drive wind turbine stator winding embedding method. The traditional multi-phase low-voltage large-capacity direct-drive wind turbine stator winding embedding method adopts single-side winding , there are shortcomings of heavy coils, many joints between coils, and time-consuming consumables, and because the motor is a multi-phase motor, it is two three-phase, that is, si...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-phase low-voltage large-capacity direct-drive wind power generator stator winding embedding method, which has the characteristics of convenient embedding operation, high efficiency and fewer joints between coils, and effectively solves the problem of the existing technology. There are many joints and time-consuming and consumable problems in the embedded wires of the stator windings of the medium, multi-phase, low-voltage, and large-capacity direct-drive wind turbines.

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