Wind vane fault redundancy operation method and system of wind turbine generator

The technology of a wind power generator and its operation method is applied in the directions of wind power generator, wind power generator monitoring, wind power motor control, etc., and can solve problems such as downtime of 1 to 2 weeks, wind power drop of wind power generator, shutdown, etc., so as to ensure normal operation Operation and cost saving effects

Active Publication Date: 2018-07-03
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

[0004] At present, the fault protection of wind turbines is mostly single-fault protection, that is, when a fault occurs in the wind turbine, the main control system immediately controls the wind turbine to shut down, thus causing a certain amount of downtime and loss of power generation
When the wind vane fails, the unit will be shut down, and it will take at least 2 to 4 hours for the maintenance personnel to replace the wind vane; if there is no spare parts for the wind vane, the turbine will be shut down for 1 to 2 weeks, resulting in more downtime
The cost of installing multiple wind vanes is higher
[0005] Among the existing wind vane failure redundant operation methods, some methods use the historical data before the wind vane failure as the operation basis to achieve redundant operation. In this case, when the wind direction changes, it will cause the wind turbine The affected wind force is severely reduced or even shut dow

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  • Wind vane fault redundancy operation method and system of wind turbine generator
  • Wind vane fault redundancy operation method and system of wind turbine generator
  • Wind vane fault redundancy operation method and system of wind turbine generator

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Embodiment Construction

[0032] Features and exemplary embodiments of various aspects of the invention are described in detail below. The following description covers numerous specific details in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a clearer understanding of the present invention by illustrating examples of the invention. The present invention is in no way limited to any specific configuration set forth below, but covers any modification, substitution and improvement of the relevant elements or components without departing from the spirit of the invention. The invention proposes a novel wind turbine wind vane fault redundant operation method and system. Based on the change rule of the wind speed value output by the wind speed meter of the wind turbine, after...

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Abstract

The invention provides a wind vane fault redundancy operation method and system of a wind turbine generator. The method comprises the steps of collecting the wind speed value output from an anemometerof the wind turbine generator, wherein the anemometer is a wind cup anemometer with three wind cups; determining the change rule of the wind speed value; and judging whether the wind direction changes on the basis of the change rule of the wind speed value so as to control the yaw operation of a wind turbine of the wind turbine generator when wind vanes of the wind turbine generator malfunction.According to the operation method provided by the invention, based on the change rule of the wind speed value output from the anemometer of the wind turbine generator, the wind turbine is subjected toyaw control so that the redundancy operation is achieved after the wind vanes of the wind turbine generator malfunction; the problem of inaccurate data that the redundancy operation of the wind turbine is based on is solved, and the normal operation of the wind turbine generator is ensured; and the cost is saved.

Description

technical field [0001] The present invention relates to the field of wind power, and more particularly, to a method and system for redundant operation of wind vane faults for wind turbines. Background technique [0002] With the gradual expansion of the scale of wind turbines and the improvement of the safety protection of wind turbines, more and more attention has been paid to the power generation performance of wind turbines, that is, to improve the power generation and availability of wind turbines. The main control system of the fan is the main body of the fan control system, which realizes important control such as automatic start, automatic wind adjustment, automatic speed regulation, automatic grid connection, automatic off-grid, automatic un-cable and automatic recording and monitoring, as well as fault protection functions. Among them, the fault protection function of the fan is very important to the safe operation of the fan. The fault protection function means th...

Claims

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Application Information

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IPC IPC(8): F03D17/00F03D7/02
CPCF03D7/0204F05B2270/32Y02E10/72
Inventor 马磊
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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