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Wind generator power optimization system and method based on drift correction

A technology of wind power and optimization method, which is applied in the field of wind power optimization system based on yaw correction, can solve the problems of online diagnosis and yaw correction system with little research, so as to reduce false actions or excessive actions, and realize real-time Diagnosis and real-time yaw adjustment, good accuracy results

Active Publication Date: 2015-05-20
风脉能源(武汉)股份有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Along with the continuous increase of wind power installed capacity, the requirements for refined operation of wind farms are also increasing, and the key part of wind turbine research is the yaw variable pitch system and its control technology. At present, domestic control of large wind turbines The system has been researched, but there is little research on the online diagnosis and yaw correction system

Method used

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  • Wind generator power optimization system and method based on drift correction
  • Wind generator power optimization system and method based on drift correction

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Embodiment 1

[0038] A wind power optimization system based on yaw correction, combined with the following figure 1 Describe this system in detail.

[0039] figure 1 Among them, the present invention provides a wind power optimization system based on yaw correction, the system includes: a data acquisition module 1, a power simulation module 2, a wind direction offset diagnosis module 3 and a control module 4;

[0040] The data collection module 1 is used to collect real-time data of fan operation, store the real-time data to form historical data, and send the real-time data and historical data to the power simulation module 2 and the wind direction offset diagnosis Module 3;

[0041] The power simulation module 2 is used to read the historical data, filter the historical data and establish a balanced data set according to the filtered data, establish a power model according to the balanced data set, and set the power model Send to the wind direction offset diagnosis module 3;

[0042] T...

Embodiment 2

[0048] A wind power optimization method based on yaw correction, combined with the following figure 2 This method will be described in detail.

[0049] figure 2Among them, a wind power optimization method based on yaw correction, the method includes the following steps:

[0050] S201. Collect real-time data of fan operation, store the real-time data to obtain historical data;

[0051] S202. Read the historical data, process the historical data, and use the processed data to establish a power model;

[0052] S203. Calculate the real-time optimal yaw angle through the power model, and generate control information according to the real-time optimal yaw angle and real-time data;

[0053] S204. Adjust the yaw angle of the wind turbine according to the control information.

[0054] The historical data is stored in a distributed database based on Hadoop.

[0055] Processing the historical data refers to: screening the historical data and eliminating faulty data; re-sampling th...

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Abstract

The invention relates to a wind generator power optimization system based on drift correction. The system comprises a data acquisition module, a power simulation module, a wind direction offset diagnosis module and a control module. The data acquisition module is used for collecting real-time data of operation of a draught fan, and storing the real-time data to form historical data. The power simulation module is used for reading the historical data, screening the historical data, establishing a balanced data set according to the screened data and establishing a power model according to the balanced data set. The wind direction offset diagnosis module generates control information according to the received power model and the real-time data and sends the control information to the control module. The control module adjusts the drift angle of the draught fan according to the received control information. In addition, the invention further provides a wind generator power optimization method based on drift correction. According to the wind generator power optimization system and method based on drift correction, the drift angle can be diagnosed and adjusted in real time, the service life of a wind generator set is prolonged, and the operation safety factor is improved.

Description

technical field [0001] The invention relates to the field of wind power control, in particular to a wind power optimization system and method based on yaw correction. Background technique [0002] Because wind energy has the characteristics of low energy density, randomness and instability, the yaw bearing has to bear the impact load generated by unspecified wind force, and has the characteristics of intermittent work, frequent start and stop, large transmission torque and high transmission ratio. Under high wind speed, inappropriate yaw angle has a great impact on the service life of blades and even the entire unit. Under the influence of uncertain external environmental factors, the yaw control system of wind turbine is a complex multivariable nonlinear uncertain system Therefore, the yaw diagnosis strategy is the key to the safe and efficient operation of the unit. [0003] As a sustainable new energy source, wind power can not only save conventional energy, but also red...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCY02E10/72
Inventor 叶毅李思亮申云
Owner 风脉能源(武汉)股份有限公司
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