Sensorless position estimation of linear voice-coil transducers

In this paper, a method for sensorless position estimation of linear transducers at standstill is suggested. The method makes use of current pulses, which is a common sensorless starting technique for 3-phase synchronous motors. Most transducers possess however only one phase. In order to find a unique solution, the proposed method differs in some important aspects from the methods used in 3-phase systems. A general discussion of different inductance phenomena is presented. A combination of these phenomena makes it possible to find a unique position. The proposed method is verified using a linear voice-coil transducer with permanent magnets, which is taken from a hard-disk drive. The experimental results are presented and discussed.


Published in:
IAS Annual Meeting (IEEE Industry Applications Society), 1, 70-74
Year:
2001
Note:
Electromechanical Laboratory, Swiss Federal Institute of Technol., EPFL, 1015 Lausanne, Switzerland
Cited By: 1; Export Date: 15 May 2006; Source: Scopus
Other identifiers:
View record in Web of Science
Scopus: 2-s2.0-0035164467
Laboratories:




 Record created 2006-06-15, last modified 2018-03-17


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