Wind generating set performance assessment method based on correlation analysis

Abstract

The invention relates to a wind generating set performance assessment method based on the correlation analysis. The method comprises the following steps that firstly, data are collected through a big-data platform; secondly, a generating set to be analyzed is determined; thirdly, the set in which correlation needs to be determined is subjected to the correlation analysis through different unit wind speeds with time as the sequence; fourthly, a correction unit is selected, and the relative power generating amounts of the correction unit are obtained; and fifthly, the average value of the relative power generating amounts is solved, when the relative power generating amount of the generating set to be analyzed is lower than the average power generating amount (k*100)%, the performance of the generating set to be analyzed is not good enough, and the generating set to be analyzed is in urgent need of rectification, wherein k is a constant. According to the wind generating set performance assessment method, a multi-level correlation and consistency analysis method is utilized, the related unit is determined, the influence of complex wind conditions on the performance assessment is eliminated, the relative power generating amount of the related unit is directly applied to serve as the assessment standard, the influence of good and bad wind resources on power generating is eliminated, and the assessment result is more reliable.

Description

technical field [0001] The invention relates to a method for evaluating the performance of a wind power generating set, in particular to a method for evaluating the performance of a wind generating set based on correlation analysis. Background technique [0002] Wind power has developed rapidly in recent years and has received widespread attention and support. The "Twelfth Five-Year Plan" clearly stated that by 2015, the installed capacity of wind power will reach 104 million kilowatts, and by 2020 this figure will increase to 200 million kilowatts. From the actual situation, the new installed capacity in 2014 was 23.3505 million kilowatts, an increase of 45.1% over 2013, and the cumulative installed capacity was 114.76339 million kilowatts, an increase of 25.5.% over 2013. In 2014, the preliminary statistics of wind power generation was more than 150 billion kwh. However, under the premise that the grid-connected installed capacity reached the expected standard, it did not...

AI Technical Summary

Problems solved by technology

In 2014, the preliminary statistics of wind power generation was more than 150 billion kwh. However, under the premise that the grid-connected installed capacity reached the expected standard, it did not reach the expected 180 billion kwh.

Although the performance of wind turbines depends intuitively on the level of their power generation, in the actual evaluation process, there are various problems such as different wind conditions between wind turbines, lack of comparison means, complex structure and control system of wind turbines, etc. , it is difficult to evaluate the performance of wind turbines based solely on the level of power generation. At present, there is no good way to evaluate wind turbines that can comprehensively consider multiple factors, which makes it impossible to analyze the poor power generation of wind power. the reason and then rectify

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