Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14586
Title: Analysis and application of two-phase spindle motor driven by sensorless BLDC mode
Authors: WEI TAILE
Keywords: two-phase spindle motor; sensorless control; BLDC mode; stepping mode; optimal commutation angle; starting capability.
Issue Date: 5-Mar-2005
Source: WEI TAILE (2005-03-05). Analysis and application of two-phase spindle motor driven by sensorless BLDC mode. ScholarBank@NUS Repository.
Abstract: This thesis analyzes the two-phase structure spindle motor driven by sensorless BLDC mode, which offers a special method to solve the starting problem caused by the high-speed HDD. The sensorless BLDC drive system for two-phase spindle motor is built up, and the optimal commutating angle based on constant voltage mode is discussed. The performances of two-phase spindle motor are tested. Both the simulation and experiment results show that the proposed drive system is correct and efficient. The starting capability of two-phase spindle motor is analyzed and tested, and compared with three-phase spindle motor. And based on the conventional stepping drive mode, an improved starting method is introduced, which can enhance the starting capability of two-phase spindle motor. The results show that the proposed two-phase spindle motor drive has potential to solve the starting problem of the high-speed spindle motor, which is very concerned in the new generation HDD.
URI: http://scholarbank.nus.edu.sg/handle/10635/14586
Appears in Collections:Master's Theses (Open)

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