Method for evaluating health condition of oil hydraulic system of water turbine generator set

Abstract

The invention discloses a method for evaluating the health condition of an oil hydraulic system of a water turbine generator set. The method includes the steps that S100, analog quantity data, switching quantity data and text data of a speed regulator system, the oil hydraulic system, a monitoring system and a production management system are collected; S200, the collected analog quantity data andswitching quantity data are pre-processed; S300, setting calculation is carried out on the pre-processed data, the set value is determined, the size of the set value is determined, and a health evaluation model of the oil hydraulic system of the water turbine generator set is built; and S400, the pre-processed data are imported into the health evaluation model of the oil hydraulic system of the water turbine generator set, the operating data are analyzed to analyze the development trend of the oil hydraulic system, fault detection is carried out to analyze the type and number of faults in theoil hydraulic system, and defect analyzing is carried out to analyze the type and number of defects in the oil hydraulic system. The comprehensive and real-time evaluation of the health condition ofthe oil hydraulic system of the water turbine generator set are realized.

Description

technical field [0001] The invention belongs to the technical field of the oil pressure system of a water turbine generator set, and in particular relates to an evaluation method for the health status of the oil pressure system of a water turbine generator set. Background technique [0002] At present, the oil pressure system has no alarm function in the case of abnormal oil quantity detection, abnormal air supply valve group, internal leakage of the system, etc., requiring staff to conduct inspections through tours, data analysis, field tests, etc., with heavy workload and low efficiency. It is not time-sensitive, and the situation has often deteriorated significantly by the time the abnormality is discovered. [0003] Specifically, the existing evaluation methods of the hydraulic system have the following problems: [0004] (1) The degree of manual participation is high, the efficiency is low, and the working ability of the staff has a great influence on the data collecti...

AI Technical Summary

Problems solved by technology

[0004] (1) The degree of manual participation is high, the efficiency is low, and the working ability of the staff has a great influence on the data collection and evaluation results;

[0005] (2) The data indicators are too single or scattered, which cannot accurately reflect the hidden dangers of the equipment, and the hidden danger investigation is difficult;

[0006] (3) The cycle of data collection and analysis is fixed, the timeliness of data is poor, and the operating conditions of equipment cannot be reflected in time

[0007] The equipment setting often has its own working characteristics, and the corresponding setting basis cannot be found in the relevant national and industry standards. The on-site staff often conduct debugging based on experience and tests. Not only the test cycle is long, but also there is a greater safety risk in the test process

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