Title :
Design of the demodulation method of position and rotate speed signals for PMSM servo system
Author :
Zhu, Guoxin ; Guo, Yumei ; Guo, Qingding
Author_Institution :
Electr. Eng. Inst., Shenyang Polytech. Univ., China
Abstract :
Applying spin transformer to achieve the principle of magnetic pole position and speed measure and a new method are presented in this paper. The actual magnetic pole position signal and speed signal demodulation circuits are given out, and the demodulation principle is analyzed exhaustively. The scheme is reliable and its high measure precision can completely meet the need of high performance AC servo system used in NC machine tool.
Keywords :
angular velocity measurement; demodulation; permanent magnet motors; servomechanisms; synchronous motors; transformers; AC servo system; NC machine tool; PMSM servo system; demodulation method; digital compound method; magnetic pole position signal; rotate speed signal; speed measurement; spin transformer; Computer numerical control; Demodulation; Equations; Feedback; Frequency; Rotors; Servomechanisms; Signal design; Stator windings; Velocity measurement;
Conference_Titel :
Electrical Machines and Systems, 2003. ICEMS 2003. Sixth International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
7-5062-6210-X
