Self-healing strategy for wind turbine condition monitoring system based on wireless sensor networks

The fault rate of offshore wind turbines is so high that it is necessary to build a reliable condition monitoring system to improve the maintenance efficiency. To adapt to the harsh operating environment of offshore wind turbine, the condition monitoring system should have good self-healing ability. In this paper, the condition monitoring system of offshore wind turbine is built based on wireless sensor network technology. Focusing on the problem of blind monitoring area caused by sensor nodes failure in the monitoring system, a self-healing strategy is proposed for the monitoring system. By adjusting the sensing distance of the nodes, the blind monitoring area of the system can be repaired by itself. Based on the simulation analysis, it can be found that the blind monitoring area can be repaired in time by the self-healing strategy. At the same time, the total energy consumption and the number of redundant nodes of the system can be reduced significantly.