Sensorless Control of Permanent Magnet Machine Drives for Aerospace Applications

A real-time, sensorless, zero speed position sensing algorithm for permanent magnet machines is presented. The strategy is applicable to any brushless permanent magnet machine that exhibits magnetic saliency. It is computationally simple and fast and can be used with machines that exhibit distorted saliencies. A Finite Element model confirms the form of the magnetic saliency and provides a design tool enabling suitability for sensorless control to be included as a key consideration in the development of bespoke machines. This offers advantages in terms of improving the accuracy and robustness of any saliency based sensorless scheme. Finally, experimental results show that the position measurement scheme exhibits excellent agreement with results obtained using a resolver. The robustness of the technique makes it ideally suited to aerospace applications.

[1]  Hirofumi Akagi,et al.  An approach to real-time position estimation at zero and low speed for a PM motor based on saliency , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[2]  Salvatore Musumeci,et al.  Sensorless vector and speed control of brushless motor drives , 1994, IEEE Trans. Ind. Electron..

[3]  F. Filippetti,et al.  Position sensorless control of a SRM drive using ANN-techniques , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[4]  Roberto Oboe,et al.  Sensorless full-digital PMSM drive with EKF estimation of speed and rotor position , 1999, IEEE Trans. Ind. Electron..

[5]  M. Ehsani,et al.  A novel position sensor elimination technique for the interior permanent-magnet synchronous motor drive , 1989, Conference Record of the IEEE Industry Applications Society Annual Meeting,.

[6]  Robert D. Lorenz,et al.  Measuring the location of saliencies in AC machines , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[7]  P. Vas,et al.  A fuzzy-controlled speed-sensorless induction motor drive with flux estimators , 1995 .

[8]  S. Sul,et al.  Sensorless drive of surface-mounted permanent-magnet motor by high-frequency signal injection based on magnetic saliency , 2003 .

[9]  Kenichi Iizuka,et al.  Microcomputer Control for Sensorless Brushless Motor , 1985, IEEE Transactions on Industry Applications.

[10]  Nobuyuki Matsui,et al.  Sensorless PM brushless DC motor drives , 1996, IEEE Trans. Ind. Electron..

[11]  K.J. Tseng,et al.  Nonlinear control of interior permanent magnet synchronous motor , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[12]  Shin-ichi Kondo,et al.  Armature current locus based estimation method of rotor position of permanent magnet synchronous motor without mechanical sensor , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[13]  Robert D. Lorenz,et al.  Transducerless position and velocity estimation in induction and salient AC machines , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[14]  H. Akagi,et al.  An approach to position sensorless drive for brushless DC motors , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[15]  R. D. Lorenz,et al.  Rotor position and velocity estimation for a salient-pole permanent magnet synchronous machine at standstill and high speeds , 1998 .

[16]  Robert D. Lorenz,et al.  Using multiple saliencies for the estimation of flux, position, and velocity in AC machines , 1997 .

[17]  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.