Wind turbine generator risk assessment system

Abstract

The invention relates to a wind turbine generator risk assessment system comprising a bolt fracture risk assessment subsystem comprising a bolt stress sensor and a bolt load sensor, and the bolt stress sensor and the bolt load sensor are arranged on a connecting bolt of a wind turbine generator; the main shaft crack propagation and fracture risk assessment subsystem comprises a main shaft stress sensor and a crack propagation audio sensor, and the main shaft stress sensor and the crack propagation audio sensor are arranged on a main shaft of the wind turbine generator; the multi-factor coupling risk assessment subsystem is used for receiving data of the bolt stress sensor, the bolt load sensor, the main shaft stress sensor and the crack propagation audio sensor and establishing a multi-parameter coupling calculation model; and when the wind turbine generator runs, the multi-factor coupling risk assessment subsystem establishes a real-time model and compares the calculation model with the real-time model. According to the technical scheme, data such as audio, stress and load can serve as the core, and the risk of the wind turbine generator is evaluated in real time.

Description

technical field [0001] The invention relates to the technical field of wind power generation and measurement control, in particular to a risk assessment system for wind turbines. Background technique [0002] At present, the power industry conducts fan operation and maintenance according to the self-promulgated new energy enterprise operation and maintenance management methods, which include insulation, metal, electrical measurement, thermal engineering, environmental protection, relay protection and safety automatic devices, power quality, energy saving , chemistry, excitation, turbines, hydraulics, etc., metal parts are a small part of it. The main objects of operation and maintenance of metal components include connection and fastening bolts (blade, coupling, generator, etc.), tower and metal frame, gearbox, yaw system, braking system, etc., and carry out related operation and maintenance work. It completely relies on on-site off-line inspection and detection, and the av...

AI Technical Summary

Problems solved by technology

The measures that can be taken for the relevant risk points are all offline detection technologies during shutdown, and the detection effect is completely dependent on the reliability of technical equipment, personnel experience and sense of responsibility, and these detection methods are only some discrete points , it is not a continuous analysis sample, it is impossible to analyze the status of the equipment in the whole process, and the safety and reliability are greatly reduced

[0004] At the same time, there is a lack of systematic real-time status monitoring for parameters such as stress, load, vibration, temperature, crack initiation and expansion of key metal parts, and fan inclination of key metal parts of the fan. The reliability of safe operation of fan equipment is low. The difficulty and risk are high, and the pertinence and timeliness of maintenance are poor

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