The stator current, Is, lags behind the induced voltage but ensures the lowest power rating requirements on the generator while ensuring the torque produced in the air-gap field is at maximum.
This invention relates generally to electric generators, and more particularly, to methods and apparatus for controlling an air gap between a rotor and a stator in a wind-powered turbine...
In fact, by combining the features of a flux-switching machine into a transverse flux generator with an axial air gap, it is possible to improve the performance of a direct-drive wind turbine
Think about big steam or gas turbine generators running at 3000 rpm (50 Hz) or 3600 rpm (60 Hz). Even the tiniest change in the air gap-down to a few microns-can throw the whole system
Multi-megawatt permanent magnet (PM) direct-drive (DD) wind turbine generators (WTGs) require a substantial amount of expensive rare-earth PM material in their
In this paper a more detailed simulation model is depicted, which calculates realistic deformation of the wind turbine and in particular the displacement between the generator-rotor and...
This paper focuses on design and the evaluation of electromagnetic performance of the five phase permanent magnet synchronous generator (FP-PMSG) for direct-drive wind power
Rotor and stator support structures of significant size and mass are required to withstand the considerable loads that direct-drive wind turbine electrical generators face to maintain an air-gap
The end of the chapter focuses on the causes of air gap displacement in a direct drive generator and describes the main factors, which have an impact on the generator air gap deflection.
Is it feasible to deliberately construct the rotor with a large air gap and then fabricate arced iron pole pieces to mount over the magnets and so reduce the average air gap?
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