Research on the permanent magnet synchronous motor control system based on additional and sensing windings
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.
Permanent magnet synchronous motor detection winding high-frequency injection rotor position
Wu Hong-xing Kou Bao-quan Li Li-yi
Harbin Institute of Technology Dept. of Electrical Engineering, No.92, West Da-Zhi Street HarbinHeil Harbin Institute of Technology Dept. of Electrical Engineering, No.92, West Da-Zhi Street Harbin Hei
国际会议
第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology
沈阳
英文
1-7
2008-09-15（万方平台首次上网日期，不代表论文的发表时间）