Title :
Axial Flux PM Machines With Concentrated Armature Windings: Design Analysis and Test Validation of Wind Energy Generators
Author :
Di Gerlando, A. ; Foglia, G. ; Iacchetti, M.F. ; Perini, R.
Author_Institution :
Dept. of Electr. Eng., Politec. di Milano, Milan, Italy
Abstract :
Some design and operation aspects of axial flux permanent magnet synchronous machines, wound with concentrated coils, are presented. Due to their high number of poles, compactness, and excellent waveform quality and efficiency, these machines show satisfactory operation at low speeds, both as direct drive generators and as motors. In this paper, after a general analysis of the model and design features of this kind of machine, the attention is focused on wind power generation: The main sizing equations are defined, and the most relevant figures of merit are examined by means of a suitable parametric analysis. Some experimental results obtained by testing a three-phase, 50-kW, and 70-rpm prototype are presented and discussed, validating the modeling theory and the design procedure.
Keywords :
electric drives; machine windings; magnetic flux; permanent magnet generators; synchronous generators; waveform analysis; wind power plants; axial flux PM machine; axial flux permanent magnet synchronous machine; concentrated armature winding; concentrated coil; design analysis; direct drive generator; modeling theory; motor drive; parametric analysis; power 50 kW; sizing equation; test validation; waveform quality; wind energy generator; wind power generation; Design methodology; Generators; Permanent magnet machines; Wind power generation; Windings; Design methodology; direct drive; generators; permanent magnet machines; wind power generation;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2010.2081956
