3. Status of online fault diagnosis of wind turbines
In China, the application of online fault diagnosis technology to wind turbines is still in its infancy. At present, major wind turbine manufacturers have begun to work experimentally on their respective wind turbines but have not yet installed online fault diagnostic equipment in batches. With the increase in the capacity of wind turbines and the maturity of the insurance market, it is an inevitable trend to deploy online fault diagnosis equipment on megawatt units. .
In the current few online fault diagnosis devices, the situation is different:
(1) Some online monitoring technologies can provide a large amount of measurement data and rich analysis charts. However, the operation and maintenance personnel cannot obtain valid information from these data to judge the status of the wind turbine.
Precisely locate faulty parts and fault types:
(2) Some online monitoring technologies. Although a “fuzzy” or “learning” type expert system has been introduced, it takes a while to “familiarize” or “learn” the monitoring objects to establish a corresponding statistical model before monitoring the system. Every time the monitoring object changes When you need to do "learning" again, you can't do it right out of the box and online automatic diagnosis:
(3) Some online monitoring technologies use fault diagnosis expert systems, which can accurately identify fault types, degrees, and accurately locate faulty components to achieve automatic online fault diagnosis without learning, training, and ready to use. This type of online monitoring technology is used in this application. .
