... stable control; 3-25m/s wind speed, wind turbine can run smoothly.3. Direct drive permanent magnet generator, low startup resistance moment, constant ... stable control; 3-25m/s wind speed, wind turbine can run smoothly.3. Direct drive permanent magnet generator, low startup resistance moment, constant ... level≤65dBAAA Tower height / weight (m/kg)12/1000 vertical wind generator for farm