Research on the permanent magnet synchronous motor control system based on additional and sensing windings

Hong-xing Wu; Bao-quan Kou; Li-yi Li

doi:10.1117/12.810653

12 January 2009 Research on the permanent magnet synchronous motor control system based on additional and sensing windings

Hong-xing Wu, Bao-quan Kou, Li-yi Li

Author Affiliations +

Proceedings Volume 7133, Fifth International Symposium on Instrumentation Science and Technology; 71331I (2009) https://doi.org/10.1117/12.810653
Event: International Symposium on Instrumentation Science and Technology, 2008, Shenyang, China

Abstract

The rotor position of permanent magnet synchronous motor is mostly detected by mechanical encoders, which increase the complexity and cost but reduce the reliability of the control system, moreover limit the applications of permanent magnet synchronous motor in certain special situations. In this paper, one method that can detects the rotor position, winding temperature and the rotor flux meanwhile through additional windings instead of changing motor structure is proposed. An additional winding is connected in the orientation opposite to that of the stator winding, and then a high-frequency current is injected into the winding to calculate the rotor position, sense the main motor winding temperature and the rotor flux by detecting the variations of the additional winding resistance and back electromagnetic force (EMF). Experimental results validate that the method is effective and feasible.

Citation Download Citation

Hong-xing Wu, Bao-quan Kou, and Li-yi Li "Research on the permanent magnet synchronous motor control system based on additional and sensing windings", Proc. SPIE 7133, Fifth International Symposium on Instrumentation Science and Technology, 71331I (12 January 2009); https://doi.org/10.1117/12.810653

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