Monitoring method for remote and real-time state of a plurality of units of wind power generation

Abstract

The invention, which belongs to the technical field of monitor of an equipment state, relates to a monitoring method for a remote and real-time state of a plurality of units of wind power generation. According to the method provided in the invention, monitoring objects are vibration signals of a plurality of units of wind power generation. According to the invention, the vibration signals of the plurality of units of the wind power generation are first collected, and the collected vibration signals are converted into discrete signals; next, a multi-sample-rate signal processing technology is utilized and low-frequency vibration signals for the plurality of units of the wind power generation are extracted; and then the vibration signals that are processed by multi sample rates are sent to a remote receiving end by a wide area network; at last, the remote receiving end receives corresponding vibration signals and makes an analysis on the signals, so that monitoring of a remote and real-time state of the plurality of units of the wind power generation is realized. According to the invention, the multi-sample-rate signal processing technology is utilized to extract the low-frequency vibration signals of the plurality of units of the wind power generation, so that data bulk containing vibration information of the plurality of units of the wind power generation is reduced. Therefore, on the present network condition, the remote and real-time monitoring of the state of the plurality of units of the wind power generation of the wide area network is allowed, wherein the monitoring is based on the vibration signals. Moreover, the method has a function of fault early warning.

Description

technical field [0001] The invention relates to a method for remote real-time state monitoring of multi-unit wind power generators, and belongs to the technical field of wind power equipment state monitoring. Background technique [0002] As a renewable and clean energy, wind energy neither pollutes the air nor produces any harmful substances. Compared with other clean energy sources, wind power has the characteristics of mature technology and low cost. Its role in improving energy structure, energy saving and emission reduction has attracted extensive attention. It has become the fastest growing renewable energy industry in the world. One of clean energy. According to statistics, from 2003 to 2007, the average growth rate of global wind power generation was 24.7%, and the accumulated total installed capacity reached 94 million kW. In 2008, wind power became the first non-hydropower renewable energy resource with a global installed capacity of more than 100 million kW. Ac...

AI Technical Summary

Problems solved by technology

However, there is no application of multi-sampling rate signal processing technology for remote vibration monitoring of wind turbines in wide area networks.

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