Real-time diagnosis method of rotor original quality imbalance fault of turbo generator set

Abstract

The invention discloses a real-time diagnosis method of a rotor original quality imbalance fault of a turbo generator set at a working rotation speed, which belongs to the field of fault diagnosis and comprises the following steps of: carrying out necessary computation, analysis and judgment on vibration data through collecting a vibration signal of a turboset rotor shaft, computing and storing an amplitude and a phase value of shaft relative vibration power frequency vibration at both sides of a rotor in real time, verifying the amplitude of the shaft vibration power frequency vibration in real time and judging whether the amplitude of the shaft vibration power frequency vibration at any side of the rotor is larger than a threshold value of the vibration amplitude; carrying out real-time quantitative computation and analysis including the amplitude trend stability verification of the shaft vibration power frequency vibration at the working rotation speed, the phase trend stability verification of the shaft vibration power frequency vibration at the working rotation speed and the like on shaft vibration power frequency vibration data by combining a least square method; and automatically real-time on-line diagnosing whether the rotor original quality imbalance fault at the working rotation speed of the turbo generator set occurs by combining each verification result. The real-time diagnosis method has the advantages of scientific method, reliable conclusion and the automatic real-time on-line monitoring and diagnosis of faults, and the like.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses an algorithm that analyzes the frequency and magnitude changes caused by rotation when operating at different speeds on a machine called Steam Turbines (ST). It provides accurate results with minimal human interference while also being able to automatically detect any issues or failures quickly without interrupting normal operations.

Problems solved by technology

This patented describes how incorrect machine tools used when producing electric generators can lead to issues such as misalignment between different parts of the assembly (rotor) and damage from excessive weight distribution over multiple points along its length). These errors affects both performance and durability of the entire system. It also highlightes the importance of early detection of these defects through automated monitoring systems.

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