Fault identification method of wind turbine generator in wind farm
A fault identification and generator technology, applied in the field of wind power, can solve problems such as being unfavorable to the full utilization of wind energy, wasting wind resources, reducing power generation efficiency, etc., to achieve the effect of improving the utilization rate of wind resources, avoiding shutdown inspection, and improving power generation efficiency
Active Publication Date: 2019-04-12
SUZHOU CHINT ENTERPRISE DEV
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Problems solved by technology
However, there are many factors that cause the high temperature of the wind turbine generator winding. For example, in the case of full load power generation, the current heating will also cause the high temperature of the winding. Big change
The method of high temperature alarm and shutdown inspection is not conducive to the full utilization of wind energy, reduces power generation efficiency, and wastes wind resources
Method used
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[0021] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present invention. All similar structures and similar changes of the present invention should be included in the scope of protection of the present invention. The commas in all indicate the relationship between and.
[0022] Such as figure 1 As shown, a wind turbine generator fault identification method provided by the embodiment of the present invention is characterized in that the specific steps are as follows:
[0023] 1) Obtain the real-time temperature of the three-phase winding of the fan generator, the real-time three-phase power generation power, and the real-time temperature of the transmission bearing;
[0024] 2) Calculate the three-phase fault calculation value of the wind turbine generator, the specific calculation formula is:
[0025] f u =2P e / (3P u +P e )×(T u -T q...
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The invention discloses a generator fault identification method in a wind-power field, relating to the wind power technology field and improving the power generation efficiency. The method comprises steps of calculating the three-phase fault calculation value of the fan generator according to three-phase winding real-time temperature of the fan generator, three-phase real time generation power, transmission bearing real time temperature and rated power of the fan generator, choosing a maximal value as a fault determination value of the fan generator from the three-phase fault calculation values of the fan generator, and performing fault identification on the fan generator according to the fault determination value of the fan generator. The generator fault identification method provided by the invention can perform fault identification on the working condition of the generator when the temperature of the fan generator in the wind-power field exceeds the time limits.
Description
technical field [0001] The invention relates to wind power technology, in particular to a technology of a fault identification method for wind turbine generators in wind farms. Background technique [0002] The wind turbine generator is one of the most important components of the wind turbine. Identifying whether the wind turbine generator is malfunctioning is an important part of maintaining the wind turbine. [0003] Usually, each phase winding of the wind turbine generator has a temperature sensor, and the driving end and non-driving end of the transmission bearing also have temperature sensors. The temperature can be collected through the temperature sensor, and protective measures are taken against high temperatures to maximize the protection of the winding and ensure the power generation of the wind turbine. safe operation of the machine. [0004] When the winding of the wind turbine generator has a high temperature, there may be a fault in the wind turbine generator....
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IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 李昌
Owner SUZHOU CHINT ENTERPRISE DEV