Pole slot matching method of reluctance type rotary transformer

Abstract

The invention discloses a pole slot matching method of a reluctance type rotary transformer. The reluctance type rotary transformer comprises a stator, a rotor and a winding. An exciting winding is wound on the stator in a slot-by-slot reverse series connection manner, and a signal winding is wound on the stator according to sinusoidal variation of the number of turns. The number of pole pairs ofthe signal winding is introduced to explore the pole slot matching method of the rotary transformer, the output induced electromotive force of the signal winding is calculated according to the workingprinciple of the sinusoidal distribution winding reluctance type rotary transformer, and the relation among the number of stator teeth, the number of pole pairs of the signal winding and the number of pole pairs of a rotor is obtained. Rotors with different numbers of pole pairs can share the same stator and signal winding form; the same rotor can be used on different stators, and one stator canbe matched with any number of rotor pole pairs depending on the established relation so that serialization of the rotary transformer products is facilitated, the design time of the rotary transformeris shortened, the types of the rotary transformers are increased and the requirements of various practical applications are met.

Description

technical field [0001] The invention relates to the field of reluctance rotary transformers, in particular to a pole slot matching method of a reluctance rotary transformer. Background technique [0002] Reluctance resolvers are widely used in integrated starter generators, traction motors, and permanent magnet motors due to their simple structure, light size, high reliability, high precision, high temperature resistance, moisture resistance, and strong anti-seismic and anti-interference capabilities. Angle position sensor of vehicle equipment, etc. Permanent magnet motors can be designed with different numbers of pole pairs according to actual usage. However, for permanent magnet motors with different numbers of pole pairs, there are not many reluctance resolvers to choose from on the market. For example, permanent magnet motors with 12 slots and 10 poles are widely used in modern industrial applications due to their outstanding performance. However, there is no universa...

AI Technical Summary

Problems solved by technology

However, there is no universal resolver product matching it

[0003] At present, there are many methods for the design, optimization or signal processing of the reluctance resolver, but there are few methods for the coordination of the stator and rotor poles of the resolver

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