An online control system and control method for lubricating oil in a wind turbine gearbox

Abstract

The invention discloses an online control system and a control method for lubricating oil of a wind power generator gearbox, belonging to the field of wind power generation. The system includes an oil monitoring system, a wireless network transmission system, a central processing unit, a host computer, and a detection oil pipe. The oil monitoring system monitors and detects the PQ value, oil moisture content and oil pollution degree in the oil pipe, and sends the collected data to the central processing unit through the wireless network transmission system, and predicts and analyzes in the central processing unit, and then The machine displays the degree of gear wear, whether the filter element and lubricating oil need to be replaced, and the scrapping time of the filter element and lubricating oil. The invention combines the oil monitoring system, the wireless network transmission system, the central processing unit, and the upper computer to realize the on-line monitoring and oil quality prediction of the fine filter system, and replace the filter element and lubricating oil on time according to the oil quality prediction results. Maximize the use of filter elements and lubricating oil, save costs and save resources.

Description

technical field [0001] The invention discloses an online control system and a control method for lubricating oil of a wind power generator gearbox, belonging to the field of wind power generation. Background technique [0002] With the aggravation of the energy crisis, wind energy is popular as a clean energy, which promotes the rapid development of the wind power industry. However, after 3-5 years of operation, the wind turbine will enter a period of frequent failures, especially the gearbox. The gearbox is the key part used to increase the speed of the impeller, and it is also the main lubrication part of the wind turbine. Long-term work will cause different degrees of wear, and the ferromagnetic particles, moisture and oxidized pollutants generated during operation will affect the lubrication effect and increase Risk of wear and failure of gears and bearings. In practical applications, the wind turbine gearbox will be equipped with a set of fine filters. The filtration a...

AI Technical Summary

Problems solved by technology

The gearbox is a key part used to increase the speed of the impeller, and it is also the main lubrication part of the wind turbine. Long-term work will cause varying degrees of wear, and ferromagnetic particles, moisture and oxidized pollutants generated during operation will affect the lubrication effect and increase Wear failure risk of gears and bearings

In practical applications, the wind turbine gearbox will be equipped with a set of fine filters. The filtration accuracy of the fine filters is mostly 10-50 microns, and the filter element and lubricating oil are replaced every six months. However, due to the different geographical environments and different operating conditions of wind turbines , the degree of wear of the gears is also different, and too many fine impurities in the lubricating oil after filtration will increase the wear of the gears and bearings, so it is not reliable to replace the filter element and lubricating oil every six months

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