A method for online monitoring of lubricating oil in wind power transmission

Abstract

An on-line monitoring method for lubricating oil in wind power transmissions. Firstly, it analyzes the working conditions of the wind power transmission gearbox tribological system, and proposes a method for full information monitoring based on three aspects: wear, physical and chemical properties of lubricating oil, and pollution; through measurability analysis Establish an integrated information monitoring system, using viscosity, moisture and abrasive particles as the measurable characteristics corresponding to the above three types of information; use embedded integrated sensor technology to achieve real-time acquisition of the above information; use TCP / IP network communication protocol to realize remote monitoring ;Establish the relationship model of wear, lubricating oil and pollution, and infer the cause of wear or lubrication failure; the invention not only realizes the online full information acquisition, but also gives the analysis of the cause of the failure. It is a wind power transmission gearbox operation The effective monitoring method of the state, through the location of wear faults and maintenance suggestions such as oil change recommendations, has important engineering significance for reducing the frictional faults of the transmission and prolonging the life of the whole machine.

Description

technical field [0001] The invention belongs to the field of on-line monitoring of mechanical systems, and mainly relates to a comprehensive monitoring system for equipment wear and lubricating oil status, in particular to an on-line monitoring method for lubricating oil of a wind power transmission. Background technique [0002] As wind power has become a major energy strategy in my country, the requirements for the safety and reliability of wind turbines are higher. Due to the harsh weather environment and extreme load conditions, the wear failure of the transmission parts of the wind turbine transmission gearbox has become one of the main reasons for the shutdown of mechanical failures, and the resulting maintenance and replacement costs have greatly exceeded the wind turbine itself. the cost of. Therefore, the operating status monitoring and fault prediction of transmission components have become the technical competition points of the world's major wind turbine manufac...

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Problems solved by technology

[0007] Generally speaking, the single wear index monitoring technology has achieved good engineering results in the field of wind power monitoring, but for complex mechanical equipment at the same time, only the number and size of abrasive particles can only give the degree of wear severity, but cannot give the degree of lubrication. The decay degree of the agent performance and the wear mechanism, the wear location, and the cause of the wear failure

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