Title :
Encoderless servo drive with adequately designed IPMSM for saliency-based position detection
Author :
Ide, K. ; Hisatsune, M. ; Shiota, T. ; Murakami, S. ; Ohto, M.
Author_Institution :
Yaskawa Electr. Corp., Kitakyushu, Japan
fDate :
May 30 2011-June 3 2011
Abstract :
This paper presents a newly developed encoderless servo drive with an adequately designed interior permanent magnet synchronous motor (IPMSM). The motor for encoderless servo drive is designed to act like resolver incorporated with saliency-based position detection technique. The resolution of the position detection and sustainability against load are considered in the design. As the position detection a pulse voltage injection technique is employed to realize higher dynamics in the control performance than conventional technique. This paper mainly focuses on the technology fusion in between motor design and control design. Finally, the fast initial pole positioning, the high-dynamics performance in position and speed control, which are sufficient for servo drive applications, are shown in this paper. The net-resolution of the position detection is about 10 bits, and the accuracy of positioning is less than 1 mechanical degree in position control at steady state.
Keywords :
drives; machine control; permanent magnet motors; position control; servomotors; synchronous motors; velocity control; adequately designed IPMSM; control design; control performance; encoderless servo drive; fast initial pole positioning; high-dynamics performance; interior permanent magnet synchronous motor; motor design; position control; pulse voltage injection technique; saliency-based position detection; speed control; technology fusion; Asia; Conferences; Decision support systems; Mercury (metals); Power electronics; IPMSM; adequately design; encoderless; pulse voltage injection;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944698