A fault recording method for wind turbines

Abstract

The invention relates to the field of new energy wind power generation systems, in particular to a fault recording method for a wind turbine generator set. A storage module is arranged on a programmable logic controller. The storage module comprises a circulating buffer pool. The fault recording method comprises the following steps that (1), monitoring data of the wind turbine generator set are collected, wherein the programmable logic controller receives data signals detected and collected by internal and external sensors of the wind turbine generator set in real time and collects the received data according to a predetermined data structure; (2), the monitoring data are cached, specifically, the monitoring data, collected in the step (1),of the wind turbine generator set are cached intothe circulating buffer pool in the form of circular coverage; and (3), wind turbine generator set fault trigger caching data are stored, specifically, wind turbine generator fault trigger data are stored. The fault recording method is simple, practical, economical and environmentally friendly and can make up for the shortages of missing of key data, the too low frequency of data acquisition and the structural change of the whole machine and increased economic cost caused by the addition of the sensors to wind turbine generators.

Description

technical field [0001] The invention relates to the field of new energy wind power generation systems, in particular to a method for recording faults of wind turbines. Background technique [0002] As a renewable clean energy, wind power has attracted more and more attention from all over the world, and has been widely used all over the world. Since large wind turbines are generally located in remote areas with poor conditions and few people, when wind turbines fail Fault data recording is a key concern in the wind power industry. [0003] At present, most of the fault data records of wind turbines are realized by the data acquisition and supervisory control (SCADA) system. The SCADA system is widely used in many industrial control fields including wind power, and the technology is mature. It will increase the reliability and safety of wind turbine operation. It plays an important role in reducing labor costs and improving wind farm scheduling efficiency and economic benefi...

AI Technical Summary

Problems solved by technology

[0004] Existing SCADA systems collect data at a low frequency (mostly at the second level), need to be connected to the Internet, and often have data loss during data transmission; special component black boxes can only record the data of a single component, and need to be equipped with sensors And storage equipment, etc., resulting in high cost, and may affect the overall structure of the wind turbine

Therefore, there is still no high-frequency data collection, comprehensive collection, safe, reliable, flexible and economical method for fault data storage of complete wind turbines

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