Wind Turbine Blade Fault Detection And Diagnosis System Based On Wireless Sensor Network

With the rapid development of wind power generation,the operation and maintenance cost of wind turbines is also increasing.Especially when the blades are installed at an altitude of several tens of meters from the ground,it is difficult to repair them.Therefore,when the blades fail,the downtime is relatively long.Maintenance costs are also relatively high,so it is possible to know the operating state of the fan blades in real time,to monitor the unit in real time or to make fault diagnosis and prediction according to the operating parameters of the unit in time or in advance,which is of great significance for the safe operation of the unit.In this paper,according to the actual needs,the design requirements of the system are put forward and the corresponding solutions are given in a targeted manner.Based on this,the overall architecture of the system is designed.The main tasks of chip selection,circuit design and system software design were completed.Finally,the hardware module of the blade fault monitoring and diagnosis system based on wireless sensor network was built.The system adopts STM32F407ZET6 as the main control chip,and the blade data acquisition module is mounted on the blade as the wireless sensor node,and the collected data is transmitted to the data transmission and reception module as the aggregation node cabin through the RF module.The cabin data transceiver module is based on the set threshold.Decide whether to send the alert message,and then package the data and upload the data to the host computer through the wireless AP and the router.The host computer then writes the data into the database of the cloud server according to the predefined data table structure.Finally,the paper introduces the basic concepts and characteristics of wireless sensor networks,and uses the carrier sense and idle channel evaluation function of RF chip CC1101 to give the implementation scheme of CC1101 ad hoc network.