Fault diagnosis method for electromechanical equipment based on gray model

Abstract

The invention provides a fault diagnosis method for electromechanical equipment based on a gray model, which comprises the steps of first, collecting operation parameters of the current electromechanical equipment; second, enabling the collected operation parameters to serve as an original modeling sequence, building a gray model, and predicting relevant data in the system by using a prediction model; third, obtaining sample data of the operation parameters of the electromechanical equipment in different fault states, building a reference model of faults of the electromechanical equipment, finding out a fault source of the system and determining a fault parameter of the system; fourth, magnifying the variation trend of the data, performing fault diagnosis, performing consistency checking on a predicted value and a solution of an analytical model, substituting the predicted result into a parameter estimation model to solve, obtaining a predicted value of the fault parameter at a futuremoment, predicting the fault parameter according to the prediction model and the parameter estimation model, and judging a fault cause according to a mechanical relationship between the variables. Thefault diagnosis method can realize diagnosis for the fault type of the electromechanical equipment during the operation.

Description

technical field [0001] The invention relates to a fault diagnosis method for electromechanical equipment, in particular to a gray model-based fault diagnosis method for electromechanical equipment. Background technique [0002] The pipe gallery construction industry is usually under harsh environmental conditions, and the gallery body is prone to produce flammable, explosive, toxic and harmful gases. Once the staff misuse or cause an accident due to untimely equipment maintenance, it is very easy to cause an explosion or leakage of toxic substances, which not only causes huge economic losses, but also causes irreparable pollution to the environment, and even seriously threatens the life safety of operators. With the continuous advancement of information automation technology, the scale of pipe gallery buildings is also constantly expanding, and the production system is developing in the direction of continuity and integration. Based on the high-risk considerations of the pi...

AI Technical Summary

Problems solved by technology

Once the staff misuse or cause an accident due to untimely equipment maintenance, it is very easy to explode or leak toxic substances, which not only causes huge economic losses, but also causes irreparable pollution to the environment, and even seriously threatens the life safety of operators.

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