A real-time monitoring method and device for abnormal power performance of wind turbines

Abstract

The invention relates to a real-time monitoring method for abnormal power performance of a wind turbine, comprising the steps of: acquiring historical operating data of the wind turbine to be monitored and historical data of the anemometer tower of the wind farm where it is located in the same period; cleaning the historical operation data of the wind turbine to be monitored , eliminate invalid data, and retain the data under the normal operating state of the wind turbine to be monitored; and construct a multi-dimensional feature vector representing the power performance of the wind turbine, and divide the multi-dimensional feature vector into a model learning group and a model verification group. The beneficial effects of the present invention are: the present invention is more accurate and effective in quantitative evaluation of generated power, and not only the operating data of the wind turbine itself but also the data at the wind measuring tower are considered when establishing the prediction model, which significantly improves the model performance. prediction accuracy. The purpose of real-time monitoring of the power generation performance of the wind turbine can be realized; the invention can also monitor the change of the power performance of the wind turbine in real time.

Description

A real-time monitoring method and device for abnormal power performance of wind turbines technical field The invention belongs to the technical field of wind power generation, in particular to a kind of real-time monitoring of abnormal power performance of wind turbines method and apparatus. Background technique As a recognized new type of clean energy, wind power is an indispensable and important component in the adjustment of energy structure. It is a key link in the process of achieving the goal of carbon neutrality and carbon peaking in my country. With the continuous increase of wind power installed capacity and With the continuous increase in the commissioning time of the wind turbines, the industry pays more and more attention to the monitoring of the power generation performance of wind turbines. The pros and cons of wind power performance directly affect the economic benefits and safety production of wind farms. The method of generating power performance ...

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Problems solved by technology

[0003] The wind power curve is an important index parameter to characterize the operating performance of the wind turbine. At present, most of the industry adopts the method of averaging the bien bin slices in the international standard IEC61400-12 to obtain the power curve. This method only represents the test unit during the evaluation period. Therefore, it is incomplete and inaccurate to quantitatively evaluate the power performance of wind turbines based on the wind power curve.

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