Method and equipment for detecting equivalent loads of wind turbine generators

Abstract

The invention provides a method and equipment for detecting equivalent loads of wind turbine generators. The method comprises the steps that in each detection period, environmental data of each wind turbine generator in a wind power plant are detected; in each detection period, the loads of one or more wind turbine generators for correction in the multiple wind turbine generators are detected, thedetected loads are used for calculating the equivalent loads of the wind turbine generators for correction, a load estimation model is used based on the detected environmental data of each wind turbine generator to determine the equivalent load of each wind turbine generator, wherein the load estimation model represents the relation between the environmental data of the wind turbine generators and the equivalent loads, before the load estimation models are used in each detection period, the equivalent loads calculated in the current detecting period and the equivalent loads of the wind turbine generators used for correction and determined through the load estimation model in a prior detecting period are used for correcting parameters of the load estimation models. By means of the method and equipment, accurate detection of the equivalent loads is achieved with the relatively low cost.

Description

technical field [0001] The invention relates to the field of wind power generation. More specifically, it relates to a method and device for detecting the equivalent load of a wind turbine. Background technique [0002] As a clean and renewable energy, wind energy has been paid more and more attention, and the installed capacity is also increasing. With the continuous development of wind power technology, the estimation of the fatigue life of wind turbines has also been paid more and more attention. In order to estimate the fatigue life of the wind turbine, it is necessary to obtain the equivalent load borne by the wind turbine. [0003] In the existing equivalent load detection technology, it is usually necessary to install sensors in the wind turbine to obtain the original load data and calculate the equivalent load. However, this technology needs to install sensors in each unit, resulting in high cost. Alternatively, a database containing a large amount of detection d...

AI Technical Summary

Problems solved by technology

However, the detection accuracy of this technique is relatively low

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