Wind generating set hydraulic variable pitch system fault diagnosis method
A technology for wind turbines and wind turbines, applied in wind turbines, wind turbine monitoring, engines, etc., can solve problems such as lack of intelligent inspection and independent judgment, reduce troubleshooting time, reduce downtime maintenance time, and comprehensive data Effect
Pending Publication Date: 2021-02-05
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
View PDF8 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] The purpose of the present invention is to propose a new analysis and processing scheme for the hydraulic pitch system failure of the wind power generating set, aiming at the limitations in the analysis and processing of the faults of the hydraulic pitch system of the existing wind power generating set, and the lack of intelligent inspection and independent judgment. The analysis and treatment plan for the failure of the hydraulic pitch system of the wind turbine can continuously monitor and diagnose the faults of the main system components of the hydraulic pitch system of the wind turbine, and determine the state of the system and each component
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0042] by attaching figure 1 It can be seen that the present invention relates to a method for self-diagnosing faults of the hydraulic pitch system of a wind power generating set. The specific steps for realizing the technical solution include: data collection, intelligent logic judgment of the controller, faulty hydraulic component location and fault prediction. Specific steps are as follows:
[0043] 1. Data collection
[0044] The wind turbine hydraulic pitch fault diagnosis system includes the following types of sensors. Considering that the filter itself has an alarm function, it is no longer reflected in this diagnosis system. The simplified schematic diagram of the system is as follows: figure 1 As shown, the hydraulic system is a single-cylinder hydraulic pitch system, and the same control and detection method is also applicable to a double-cylinder hydraulic pitch system. The sensors involved in the system and their installation locations and detection data include:...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a wind generating set hydraulic variable pitch system fault diagnosis method, and the method comprises the steps of collecting flow and pressure parameter data of the hydraulicvariable pitch system of the wind generating set through various types of sensors, and transmitting the flow and pressure parameter data to a variable pitch controller PLC; and enabling the variablepitch controller PLC to logically judge flow and pressure parameter data sent by various types of sensors according to a set flow threshold value and a set pressure threshold value, and carry out comparative analysis and diagnose a hydraulic element with a system fault. According to the invention, fault diagnosis is carried out on the use of each hydraulic element through the collected big data, the operation condition of each hydraulic element can be found in time, the variable pitch controller PLC is adopted to logically judge the flow and pressure parameter data sent by each type of sensoraccording to the set flow threshold and pressure threshold for comparative analysis, and the invention has the advantages of accurate and timely diagnosis, so all parts can be detected in real time, and intelligent operation and maintenance are achieved.
Description
technical field [0001] The present invention relates to a fault detection and judgment method for system components of a wind power generating set, in particular to a fault diagnosis method for a hydraulic pitch system of a wind power generating set, which can quickly and accurately The invention relates to judging the cause of failure and failure components; it belongs to the technical field of component control of wind power generating sets. Background technique [0002] Wind power refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean and pollution-free renewable energy source. Therefore, wind power generation, as a clean energy power generation, has attracted more and more attention from all over the world. The wind power industry has developed rapidly in recent years. But on the other hand, wind turbines are complex mechatronic equipment. In order to ensure the normal operation of the entire system, it is necessary to monitor the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06F17/18G01D21/02F03D17/00G06Q10/00
CPCG06F16/2465G06F17/18G01D21/02G06Q10/20F03D17/00Y02E10/72
Inventor 刘斌斌欧阳华李秀珍程文涛杨剑飞李润旭王志林梁瑞利方国欣
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST