Title :
Magnetic planar micro generator
Author :
Raisigel, Hynek ; Cugat, Orphée ; Delamare, Jérôme ; Wiss, Olivier ; Rostaing, Hervé
Author_Institution :
Lab. d´´Electrotechnique de Grenoble, St Martin D´´Heres, France
Abstract :
A prototype of an axial-flux permanent magnet electromagnetic generator was recently built in LEG in collaboration with LETI. The φ 8 mm planar generator consists of a permanent magnet disc rotor cut out of bulk SmCo5 or NdFeB and a silicon stator with electroplated three-phase planar coil. The machine was driven at speeds up to 260 000 rpm on hybrid magneto-pneumatic bearings. This mm-scale planar generator is compatible with mm-scale gas turbines. The article evaluates its integration for the generation of electrical power, using compressed air presently. The first prototype of micro-turbo-generator driven by compressed air delivers an electric output power of 14.6 mW at 58 000 rpm.
Keywords :
gas turbines; machine bearings; micromechanical devices; permanent magnet generators; rotors; stators; synchronous generators; 14.6 mW; 8 mm; NdFeB; Si; SmCo5; axial-flux permanent magnet electromagnetic generator; compressed air driven turbines; electroplated three-phase planar coil stator; gas turbines; hybrid magneto-pneumatic bearings; magnetic planar microgenerator; permanent magnet disc rotor; planar generator; power MEMS; power microgenerator; synchronous permanent magnet machine; Coils; Collaboration; Leg; Magnetic levitation; Permanent magnets; Power generation; Prototypes; Rotors; Silicon; Stators;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems, 2005. Digest of Technical Papers. TRANSDUCERS '05. The 13th International Conference on
Print_ISBN :
0-7803-8994-8
DOI :
10.1109/SENSOR.2005.1496527
