There is no speed-increasing gearbox, which completely solves the bottleneck problem of high gearbox failure rate that affects fan reliability; there are no mechanical components such as gearboxes in the transmission chain, which has a simple structure and low noise, easy maintenance and higher operational reliability, higher mechanical efficiency; using permanent magnet synchronous generator, the generator has no excitation loss, effectively improving the efficiency of the fan without carbon brushes and slip rings, it solves the problem of high slip failure rate; rings of dual-powered generators and the need to regularly clean the carbon brushes and carbon powder. This reduces generator maintenance and improves fan availability. The operating cost is low and, during the hardWith a design life of 20 years, the total cost of ownership (TCO) is reduced. is more than 15% lower than a dual-powered fan with speed boost box.
50 percent. Direct drive permanent magnet generators for wind power have become the dominant technology in the wind power industry. Their advantages include simple structure, high reliability and high conversion efficiency. In 2022, with the continued development of technology and further cost reduction, wind energy. Direct drive permanent magnet generators will be further popularized and increased. Depending on the specific conditions of each region, the proportion of new direct-drive permanent magnet generators for wind power will exceed 50%.