Abstract
This article first studies the operating principles of wind turbines, focusing on the analysis of the structure and working principles of permanent magnet direct-drive wind turbines. According to the actual needs of the wind power system, the monitoring objects of the monitoring system are determined, and the overall monitoring plan for wind power generation is proposed to realize real-time analysis of the operating characteristics of the wind power system. At the same time, it pointed out the great significance of the wind power generation simulation experiment system and focused on the wind speed modeling. In terms of hardware research and analysis, relevant sensors, high-speed data acquisition cards, etc., were selected, and relevant signal conditioning circuits were designed, and a permanent magnet direct-drive wind power generation system simulation monitoring platform was constructed. In terms of software, LabVIEW was chosen as the design language of the monitoring system, and it pointed out the advantages of using LabVIEW in this monitoring system. Finally, the system uses the laboratory permanent magnet direct-drive wind turbine as the monitoring object. The practicality and accuracy of the system are verified through experiments such as permanent magnet motor power test, motor speed test, database system test, and remote monitoring test. The experimental results show that the monitoring system has a friendly interface and perfect functions and has important practicability and reference in the field of wind power monitoring.
Highlights
In the current society, with the continuous deterioration of the human living environment and the ever-increasing energy crisis, the development and utilization of renewable energy has attracted more and more attention from all countries in the world [1]
We select the data recorded by the SCADA system of the same type of wind turbine for two consecutive weeks, and process the data stream according to the aforementioned process to obtain the value, and plot the last calculated 2019 data in the paper to obtain the CUSUM control chart. e upper and lower thresholds can completely cover the speed curves of 123 units under normal conditions without misjudgment
A set of antioverspeed logic can be set in the monitoring system: during the speed-up phase of the unit, when the speed of the unit exceeds the range of the upper and lower speed threshold curves given by formulas, the output of the monitoring system increases abnormally
Summary
With the continuous deterioration of the human living environment and the ever-increasing energy crisis, the development and utilization of renewable energy has attracted more and more attention from all countries in the world [1]. Erefore, by detecting and analyzing the output effective power and wind speed, the overall operating state of the wind turbine can be effectively monitored for potential faults.
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