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

A technology for hydraulic systems and generator sets, applied in the testing of machine/structural components, computer components, and by measuring the acceleration and deceleration rates of fluids, etc., which can solve problems such as high manual participation, long test cycles, and poor data timeliness.

A technology for hydraulic systems and generator sets, applied in the testing of machine/structural components, computer components, and by measuring the acceleration and deceleration rates of fluids, etc., which can solve problems such as high manual participation, long test cycles, and poor data timeliness.

CN110702437AActive Publication Date: 2020-01-17DADU RIVER HYDROPOWER DEV
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  • Method for evaluating health condition of oil hydraulic system of water turbine generator set
  • Method for evaluating health condition of oil hydraulic system of water turbine generator set
  • Method for evaluating health condition of oil hydraulic system of water turbine generator set

Examples

Experimental program
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Effect test

Embodiment

[0054] Such as Figure 1-4 As shown, a method for evaluating the health status of the hydraulic system of a hydroelectric generator set in this embodiment includes the following steps:

[0055] S100. Collect analog data, switch data and text data of the governor system, oil pressure system, monitoring system and production management system;

[0056] S200. Preprocessing the collected analog data and switching data through the time window translation method to eliminate the phenomenon of instantaneous data jumps;

[0057] S300. The preprocessed data is calculated by the discrete point distribution map algorithm and the linear regression algorithm to determine 96 kinds of fixed values ​​and determine the size of the fixed values, and build a health evaluation model of the hydraulic system of the hydraulic turbine generator set;

[0058] S400. Import the preprocessed data into the health evaluation model of the oil pressure system of the hydraulic turbine generator set, analyze ...

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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...

Claims

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Application Information

Patent Timeline
17 Jan 2020
Publication
CN110702437A
IPC
G01M99/00; G01M3/26; G06K9/62
CPC
G01M99/00; G01M3/26; G06F18/23; G06F18/24
Inventors
周文军; 严映峰