Double-powered wind turbines are currently the most widespread on the market and the technology is relatively mature. However, they have many defects, including the gearbox, which increases the complexity of the system and maintenance costs.
The direct-drive wind turbine is an emerging type of generator that eliminates the need for a gearbox and can achieve greater power generation efficiency at low wind speeds.
Currently, multinational giants are developing direct drive wind turbines. And a 1.5 MW direct drive wind turbine has been put into mass production.