A comprehensive judgment method for abnormal temperature rise of offshore wind turbine transformers

Abstract

The invention provides a comprehensive judgment method for abnormal temperature rise of an offshore wind power generator transformer. Organize and analyze the background overview, understand the various process parameters of the transformer and the past operating conditions, etc.; inspection and test analysis, after sampling the failed components with abnormal burning in the transformer, use various equipment and various physical and chemical testing methods to conduct Inspection and analysis; comprehensive discussion, analysis and judgment, identifying the failure mechanism of abnormal temperature rise of the transformer, discussing the relationship between each failure mechanism, finding the cause of failure and giving countermeasures. The invention provides a new ablation morphology feature reference and failure mechanism theory support by comprehensively analyzing the abnormal temperature rise of the offshore wind power generator transformer, can accurately determine the failure cause of the transformer, and propose effective countermeasures. This method is not only beneficial to quickly and accurately determine the failure mode and mechanism of the abnormal temperature rise of the offshore wind turbine transformer under other working conditions, find the root cause of the failure and propose targeted solutions.

Description

technical field [0001] The invention belongs to the technical field of safety detection of offshore wind power generation systems, and in particular relates to a comprehensive judgment method for abnormal temperature rise of offshore wind power generator transformers. Background technique [0002] In the past few decades, the problems of traditional energy consumption and environmental pollution have become increasingly serious. my country is constantly developing and utilizing renewable energy. As one of the clean energy sources, wind energy has received more and more attention and application. As an important carrier for converting wind energy, wind turbines not only have an important strategic position in my country's economic development, but also an important cornerstone for ensuring stable power supply in cities. Compared with onshore wind power, offshore wind power has more abundant resources, and has the advantages of high power generation efficiency, large installed...

AI Technical Summary

Problems solved by technology

At the end of 2016, it was discovered that the transformer of one of the offshore wind turbines had an abnormal temperature rise and eventually burned during operation. After careful inspection of other wind turbines, it was found that more than 30 units also had abnormal temperature and resistance rises. In the case of combustion, although the combustion has not yet occurred, it must be shut down for replacement.

At present, there is no systematic comprehensive failure analysis and judgment method for the abnormal temperature rise of such offshore wind turbine transformers at home and abroad, and it is difficult to accurately analyze the abnormal temperature rise of transformers

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