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Some converter configurations for wind energy systems are proposed. The conversion structures include capacitor loaded diode bridges directly feeding a grid side inverter. Because of the great variation of the PM generator voltage, due to the wide speed range, a winding commutation is adopted between parallel and series connection, at low speeds. Various features are analyzed, concerning converter...
Some design and operation aspects of axial flux permanent magnet synchronous machines, employing armature windings with concentrated coils wound around the stator teeth, are presented. The e.m.f. control is based on the variation of the windings flux linkage, obtained by modifying the stator (or rotor) configuration. Thanks to the high number of poles and the excellent waveform quality, even with...
Some design and operation aspects of PM synchronous machines, employing armature windings with concentrated coils wound around the stator teeth, are presented; the e.m.f. control is based on the variation of the windings flux linkage, obtained by modifying the stator (or rotor) configuration. Thanks to the high number of poles and the excellent waveform quality, even with deep field weakening, these...
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