Fault recording method and recorder of wind variable-pitch system

Abstract

The invention, which belongs to the field of fault monitoring of a wind turbine generator system, relates to a fault recording method and recorder of a wind variable-pitch system. The recording methodcomprises: collecting operation data of a wind variable-pitch system and caching wind variable-pitch system data within latest T0 time; monitoring a wind variable-pitch system safety chain signal anddetermining whether the wind variable-pitch system has a fault based on the signal; and if so, integrating wind variable-pitch system data within T2 after the wind variable-pitch system fault and wind variable-pitch system data within T1 time before the wind variable-pitch system fault into one fault recording record and storing the record. The sum of the T1 and T2 is equal to T0; and the T1 andthe T2 are larger than 0. According to the invention, relative less data information before and after the wind variable-pitch system fault can be recorded effectively and timely at the sudden occurrence of the fault of the variable-pitch system; the small storage space is occupied; the high-efficiency recording of the key information of the wind variable-pitch system is realized; and the technicalstaff member can inquire the fault information subsequently conveniently.

Description

technical field [0001] The invention relates to a fault wave recording method and a wave recorder of a wind power variable pitch system, belonging to the field of fault monitoring of wind power generating sets. Background technique [0002] The occurrence of faults in the pitch system of wind turbines is not only related to the system itself, but also closely related to the real-time wind conditions of the wind farm in many cases. Some faults only appear under special wind conditions. The emergence of these special wind conditions is random and unpredictable. The technicians are often not on site when the fault occurs. Even if the technicians happen to be on site, it is difficult to timely and effectively capture various key data before and after the fault occurs. [0003] In order to record various key data before and after the failure of the wind power pitch system, the wave recorder can be used to continuously record various key data; however, the wave recording informati...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wind power pitch system failure wave recording method and wave recorder to solve the problem of how to realize efficient wave recording of key data of the wind power pitch system

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