Question

Why radial flux permanent magnet generators preferrred for wind turbine?

Answer 1

Answer:

Brushless Alternators for Wind and Water Turbines from 200W up to 100KW. Low cogging torque. Reliability. High accuracy. Compactness. High torque-to-weight. High efficiency. Highlights: High Efficiency, Simplification Of Mechanical Design.

Answer 2

Explanation:

Ferrite permanent magnets with flux concentrating pole pieces are preferred to rare earth types because of their lower cost. The primary brake for the wind turbine can be electrical since the permanent magnet excitation is available in the absence of an external supply.