System and method for sequentially recording faults of wind generating set

Abstract

The invention discloses a system and a method for sequentially recording faults of a wind generating set. The system comprises a plurality of microsecond-scale fault recording devices which are distributed on a programmable logic controller (PLC) and peripheral equipment of the wind generating set, wherein the plurality of microsecond-scale fault recording devices are connected with a wireless gateway through a fault recording and processing system; the wireless gateway is connected with a personal computer (PC) provided with supervisory control and data acquisition (SCADA) software on a central control room monitoring platform through a router; each distributed microsecond-scale fault recording device is associated with a key trip shutdown signal of key equipment and respectively and independently records the fault; and when a fault occurs, the time and data of the fault are recorded to form a corresponding report through the respectively independent fault recording device and are transmitted to the wireless gateway by the fault recording and processing system, the wireless gateway transmits the data to a remote PC in the central control room monitoring platform through the router via an optical cable, the fault occurring in the wind generating set can be remotely and timely known, and the potential safety hazard is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a system and method for sequentially recording faults of wind power generators. Background technique [0002] For a long time, due to the remote location of wind turbines, the central control room is far away from the wind field, and there are few personnel, especially for offshore wind turbines. What the wind turbine operators can see is through the SCADA monitoring system on the PC of the central control room monitoring platform. The obtained data and fault records can only be recorded at a time interval of every second, while the operation cycle of the main control system of the wind turbine is 0.01s, that is, 10ms. According to Shannon's theorem, the frequency of fault records must be at least higher than that of faults More than 2 times the frequency of faults can be accurately covered. Therefore, the existing SCADA method cannot meet the needs of fault records, cannot re...

AI Technical Summary

Problems solved by technology

[0002] For a long time, due to the remote location of wind turbines, the central control room is far away from the wind field, and there are few personnel, especially for offshore wind turbines. What the wind turbine operators can see is through the SCADA monitoring system on the PC of the central control room monitoring platform. The obtained data and fault records can only be recorded at a time interval of every second, and the operation cycle of the main control system of the fan is 0.01s, that is, 10ms. According to Shannon's theorem, the frequency of fault records must be at least higher than that of faults More than 2 times the frequency of faults can be accurately covered. Therefore, the existing SCADA method can not meet the needs of fault records, can not realize the accurate judgment of fan faults, cover up related problems, and cause a greater safety hazard

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