Big turbine rotors generate a lot of torque. That means, you need a lot of magnetic field strength to harness that much swept area at low RPM. Permanent Magnet Generators (PMG) need a lot of the rare earth elements, like Neodymium, Dysprosium, Nickel, Cobalt, Samarium, and other rare earth elements, as well as the iron. These alternators will be sustainable, as long as these rare earth elements remain affordable. Another criticism I have, is that the torque the alternator can handle is limited by the field strength of the magnets, limiting the over-torque they can handle in high wind. If, somehow, the actuators are unable to pitch the blades into the wind during a storm, the alternator can lose control of the rotor, and you have a "runaway" situation. It's difficult at best, to stop all that torque with a brake. In high winds, these wind turbines are as powerful as 2 train locomotives!
Bolted together tower sections!?!? A technicians nightmare to torque
Nice love enercon
Big turbine rotors generate a lot of torque. That means, you need a lot of magnetic field strength to harness that much swept area at low RPM. Permanent Magnet Generators (PMG) need a lot of the rare earth elements, like Neodymium, Dysprosium, Nickel, Cobalt, Samarium, and other rare earth elements, as well as the iron. These alternators will be sustainable, as long as these rare earth elements remain affordable. Another criticism I have, is that the torque the alternator can handle is limited by the field strength of the magnets, limiting the over-torque they can handle in high wind. If, somehow, the actuators are unable to pitch the blades into the wind during a storm, the alternator can lose control of the rotor, and you have a "runaway" situation. It's difficult at best, to stop all that torque with a brake. In high winds, these wind turbines are as powerful as 2 train locomotives!
Lagerway
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Hello. The address of the manufacturer that manufactures this type of giant fans with clean energy. Thank you very much...