Fan direct-driven variable pitch system based on digital twin and optimum design method

The invention relates to a fan direct-driven variable pitch system based on a digital twin and an optimum design method, and belongs to an optimum design method of a wind driven generator system. An SCADA (supervisory control and data acquisition) system and a sensor are installed in a physical solid model of the fan direct-driven variable pitch system, so that data of the generator speed, the wind speed, the power, a pitch angle, the variable pitch moment, the blade vibration, the environmental temperature and the like are collected; the data are transferred to the virtual space of the digital twin of the fan direct-driven variable pitch system by virtue of a digital twin mapping model, and the virtual space of the digital twin of the fan direct-driven variable pitch system is integratedwith multi-disciplinary, multi-physical quantity, multiscale and multi-probability simulation by updating a sensor and analyzing history data, so that the life cycle process of physical solid equipment of the corresponding fan direct-driven variable pitch system is reflected, the optimum design, production and reliable operation and maintenance of the system are completed, the problem of evaluation of the quality and manufacturability of the scheme after a traditional variable pitch system is manufactured can be solved, and the production cost is effectively reduced.