Method and system for analyzing vibration and diagnosing failure for wind generating set

Abstract

The invention discloses a method and a system for analyzing vibration and diagnosing failure for a wind generating set. The method comprises the following steps: firstly, acquiring vibration data of the wind generating set; finishing the analysis of the vibration data of the wind generating set according to structure parameters, history records and knowledge base of the wind generating set to generate a human-editable analysis report; diagnosing according to a vibration monitoring analytical standard and the operating state of the wind generating set; leading the diagnosis result to form a vibration monitoring report, and submitting the vibration monitoring report to a user; and finishing maintenance to the wind generating set according to the vibration monitoring report by the user. The technical scheme of the invention can greatly reduce workload of the vibration analysis of the wind generating set, and improve efficiency and accuracy of vibration analysis and failure diagnosis of the wind generating set.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method and system for vibration analysis and fault diagnosis of wind turbines. Background technique [0002] With the increasing shortage of conventional energy, the development and utilization of renewable energy will undoubtedly become the main direction of energy development in the future. At present, wind power generation technology has matured, and the installed capacity of wind power has continued to expand. By the end of 2008, the installed capacity of wind power in China had exceeded 12 million kilowatts, and the installed number exceeded 10,000. With the increase in the number of operating units, how to ensure the safety and security of wind power units Reliable and efficient operation has become the focus of the wind power industry. Rotating machinery fault diagnosis technology has been popularized in aviation, railway, electric power, metallurgy and ot...

AI Technical Summary

Problems solved by technology

[0003] 1. Wind power generation is a new industry. The structure of the wind turbine is complex, and its transmission system has the characteristics of low speed and heavy load, elastic support, variable speed and variable load. The vibration analysis of the unit cannot directly adopt the existing analysis standards. Therefore, it is necessary to quickly Complete data accumulation and formulate analysis standards for wind turbine vibration monitoring, which is difficult to achieve quickly only by manual processing

[0004] 2. The remote wind farm site makes it difficult to train vibration analysis engineers who have both theoretical foundation and practical experience. Generally, professional vibration analysis service companies are entrusted to complete the work, but they generally lack on-site experience in wind turbines.

[0005] 3. There are a large number of wind turbines with different models; there are many measurement points for a single unit, and the same type of unit may use different types of gearboxes; and the wind turbines operate under variable speed and load conditions, which brings huge data to vibration analysis engineers Processing workload, resulting in slow analysis speed, low efficiency, insufficient accuracy and other deficiencies

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