Reluctance resolver capable of high-speed operation

Abstract

The invention belongs to the technical field of reluctance-type rotary transformers, and particularly relates to a novel reluctance-type rotary transformer capable of running at a high speed. A silicon steel sheet material of a rotor is changed into a double-phase silicon steel sheet through a nitriding process, and a magnetic conduction area and a non-magnetic conduction area are formed. The high-speed operation of the rotor is ensured, the function of the reluctance-type rotary transformer is realized, the structure is simple, the production process is convenient, and the product reliabilityis high.

Description

technical field [0001] The invention belongs to the technical field of reluctance rotary transformers, and in particular relates to a reluctance rotary transformer capable of high-speed operation. Background technique [0002] The reluctance resolver is developed from the traditional resolver. The traditional resolver is a contact resolver. The use of brushes and slip rings reduces its safety. Adding a resolver with a coupling transformer can achieve brushless Structural redundancy. In order to overcome these shortcomings, experts have developed a reluctance rotary transformer, which not only realizes brushless, but also further simplifies the structure and solves the problem of the excitation structure. However, most of the current reluctance resolver rotors adopt a salient pole structure. When the transformer is running at high speed, the internal stress and wind loss of the rotor with a salient pole structure will increase, which will make the reluctance resolver more re...

AI Technical Summary

Problems solved by technology

[0007] At present, most of the reluctance rotary transformers can generally reach a rotor speed of about 60000r / min during high-speed operation, and cannot achieve high-speed operation of 100000r / min or above.

In addition, reluctance transformers generally change the structural design of the stator, while the rotor is still a wave-shaped rotor, resulting in a large wind-milling loss of the resolver.

If the rotor is selected as a full circle and the stator structure is changed, the structure of the resolver will be complicated and the production process will be difficult.

The reluctance rotary transformer with wave-type rotor structure has a large internal stress, especially when it is running at high speed, it is prone to damage and affects the life of the transformer.

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