Abstract
The article substantiates the relevance of developing a combined protection system for a wind turbine. The system is implemented as a three-level hardware structure. The lower, first level provides the collection of current data on monitored parameters. The second level is responsible for storing the current data of monitored parameters, calculating missing state variables using observer methods, and generating warning messages about emergency situations to the wind turbine operator. The third, top level corresponds to the operator’s computer. The combined protection system of the wind turbine installation is a crucial element that will help reduce emergency incidents, increase reliability, and extend the service life of the wind turbine installation.