Ultrahigh Speed Permanent Magnet Motor/Generator for Aerospace Flywheel Energy Storage Applications

Compared with traditional electrochemical batteries, flywheel energy storage systems are attractive in certain aerospace applications due to their high power density and dual-use ability to achieve attitude control. A small flywheel energy storage unit with high energy and power density must operate at extremely high rotating speeds; i.e., of the order of hundreds of thousands of revolutions per minute. In this paper, initial test data is provided on a prototype permanent magnet flywheel motor/generator with design goals of achieving 100 W of power conversion over a speed range from 150,000 rpm and 300,000 rpm. A field-oriented position-sensorless control scheme is implemented on the machine. The initial test results indicate the system has the potential to meet the desired performance

[1]  A.J.A. Vandenput,et al.  Design, development and testing of a high-speed axial-flux permanent-magnet machine , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[2]  Heath Hofmann,et al.  Steady-state finite element solver for rotor eddy currents in permanent magnet machines using a GMRES approach , 2003, IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03..

[3]  R. Wu,et al.  A permanent magnet motor drive without a shaft sensor , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[4]  Tadashi Fukao,et al.  Test results on a super-high-speed amorphous-iron reluctance motor , 1989 .

[5]  H. Hofmann,et al.  Steady-state finite-element solver for rotor eddy currents in permanent-magnet machines using a shooting-Newton/GMRES approach , 2004, IEEE Transactions on Magnetics.

[6]  Wensen Wang,et al.  DESIGN OF HIGH SPEED FLYWHEEL MOTOR/GENERATOR FOR AEROSPACE APPLICATIONS , 2004 .

[7]  B. V. Jayawant,et al.  Design of high speed permanent magnet machines in magnetic bearings , 1995 .

[8]  Nesimi Ertugrul,et al.  A new algorithm for sensorless operation of permanent magnet motors , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[9]  C. Bakis,et al.  Design of high-speed permanent magnet machines with anisotropic electromagnetic and structural continuum formulations , 2003, IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03..

[10]  Heath Hofmann,et al.  Design of High-Speed Permanent Magnet Machine for Small Flywheels ⁄ , 2003 .