Device for simulating output signal of rotary transformer and providing fault diagnosis

Abstract

The invention discloses a device for simulating output signals of a rotary transformer and providing fault diagnosis. The invention relates to the field of motor position acquisition sensors. The device comprises a rotary transformer static angle simulation subsystem, a rotary transformer steady-state rotating speed simulation subsystem, an excitation winding signal over-limit detection subsystem,a feedback winding fault simulation subsystem, a main power supply and an auxiliary power supply which are coupled with one another, the excitation winding signal over-limit detection subsystem can identify the fault that the amplitude of an excitation signal exceeds a normal value, the protection mechanism is to cut off the power supply of a system main power supply and automatically stop the work of the simulation system, and the feedback winding fault simulation subsystem can simulate the short-circuit and open-circuit faults of two paths of feedback windings through the warning of a workindicating lamp. The functions of rotary transformer output signal and fault diagnosis are integrated and simulated, and the size is reduced.

Description

technical field [0001] The invention relates to the field of collecting sensors for motor positions, in particular to a device for simulating the output signal of a rotary transformer and providing fault diagnosis. Background technique [0002] The sine-cosine resolver (hereinafter referred to as the resolver) is a sensor used for angle measurement, which converts the rotor angle into a voltage signal that exhibits a sine-cosine function relationship, and consists of a primary winding (excitation winding) and two secondary windings ( Sine and cosine feedback windings). At present, the resolver is widely used as a motor position sensor. In some applications that need to analyze the corresponding position and speed signal of the rotor according to the given resolver output signal, the current solution is to install the resolver on the adjustable motor to directly generate the required signal. Or use complex electronic devices such as signal generators and microprocessors to s...

AI Technical Summary

Problems solved by technology

[0003]However, this solution lacks the resolver signal fault diagnosis function, and has a large volume, requires regular maintenance, and is expensive

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