Wind turbine generator unit state monitoring system performance assessment method

A condition monitoring system, wind turbine technology, applied in the direction of climate sustainability, electrical digital data processing, renewable energy integration, etc., can solve problems such as impact

Active Publication Date: 2013-02-20
HOHAI UNIV
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Problems solved by technology

[0003] Purpose of the invention: In view of the problem that the performance of the condition monitoring system of wind turbines is affected by the failure sensor, the present invention provides a method for evaluating the performance of the condition monitoring system of wind turbines

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  • Wind turbine generator unit state monitoring system performance assessment method
  • Wind turbine generator unit state monitoring system performance assessment method
  • Wind turbine generator unit state monitoring system performance assessment method

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Embodiment Construction

[0055] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0056] 1. Performance evaluation model of wind turbine condition monitoring system

[0057] 1.1 Markov model of the system

[0058] Reliable monitoring of state health information is the basis for fault diagnosis and control of wind turbines. The established state monitoring system network must be able to complete the monitoring task of wind turbine health status in the shortest possible time, so quantitative evaluation of the performance of the monitoring system very necessary. This can provide...

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Abstract

The invention discloses a wind turbine generator unit state monitoring system performance assessment method which includes building a Markovian model for reflecting state of a wind turbine generator unit, providing calculation steps and corresponding mathematical formulas of probability of different state of the system at a certain time; building a mathematical module reflecting state, including normal state and failure state, of a single sensor; building a system function reflecting the state of the whole monitoring system, and classifying the states of the system according to quantities of the sensors in normal states or in failure states into normal state, risk state and failure state. To keep the availability of the system is not lower than a certain preset value, the minimum quantity of standby sensors, the maximum quantity of standby sensors allowing to be short in the system are calculated and determined according to the steady-state value of the availability of the system. By the wind turbine generator unit state monitoring system performance assessment method, the basis can be provided for making daily maintenance plane for a wind turbine generator unit, and performance of the system can be kept to the utmost extent with lowest maintenance cost.

Description

technical field [0001] The invention relates to a method for evaluating the performance of a wind turbine condition monitoring system, which can realize the performance assessment of the wind turbine condition monitoring system and determine the conditions required to maintain the system performance. Background technique [0002] With the continuous progress of wind power technology, wind power has become the most potential way of new energy power generation. However, the operating environment of wind turbines is often harsh and the failure rate is high. At the same time, the daily maintenance work of wind turbines is often difficult to carry out in time due to bad weather, which greatly increases maintenance costs and seriously affects the production efficiency of wind farms. Therefore, in order to reduce economic losses and maintenance costs, most wind farms have installed condition monitoring systems for wind turbines. By installing sensors on key components of wind turb...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCY02B10/30
Inventor 傅质馨袁越
Owner HOHAI UNIV
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