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[citation needed] The Fuller Wind Turbine System was a bladeless wind turbine announced in 2010 by Solatec LLC. Saphon Energy announced a bladeless wind turbine in 2012. [27] Vortex Bladeless is attempting to produce a wind turbine that isn't actually a turbine. All generators require a magnetic field, a conductor and motion to produce electricity.
The brake disk, with its attached rare-earth magnets, rotates to form the armature. A plywood disk carrying multiple axial coils is placed alongside this, with an iron armature ring behind it. In large sizes, from the 100 kW to MW range, the machines developed for modern wind turbines are termed permanent magnet synchronous generators. [14]
A permanent magnet synchronous generator is a generator where the excitation field is provided by a permanent magnet instead of a coil. The term synchronous refers here to the fact that the rotor and magnetic field rotate with the same speed, because the magnetic field is generated through a shaft-mounted permanent magnet mechanism, and current is induced into the stationary armature.
4.5: City of Bryan [21] Captain Anthony Meldahl Locks and Dam: Felicity: 105: American Municipal Power [21] Largest hydroelectric plant on the Ohio River. Located on the Kentucky side of the river. The City of Hamilton retains 51.4% of the power generation. [22] Greenup Lock and Dam: Franklin Furnace: 70.2: American Municipal Power [21] Racine ...
This is useful for large variable speed wind turbines, because wind speed can change suddenly. When a gust of wind hits a wind turbine, the blades try to speed up, but a synchronous generator is locked to the speed of the power grid and cannot speed up. So large forces are developed in the hub, gearbox, and generator as the power grid pushes back.
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