New sensorless control for brushless DC motors using disturbanceobservers and adaptive velocity estimations
Tomita, M.
Senjyu, T.
Doki, S.
Okuma, S.
Dept. of Electr. Eng., Nagoya Univ.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Apr 1998
Volume: 45,
Issue: 2
On page(s): 274-282
ISSN: 0278-0046
References Cited: 9
CODEN: ITIED6
INSPEC Accession Number: 5885052
Digital Object Identifier: 10.1109/41.681226
Current Version Published: 2002-08-06
Abstract
A brushless DC motor has been represented by a nonlinear equation.
Therefore, it has been difficult to apply linear control theory to
brushless DC motor systems. In this paper, to apply the linear control
theory to brushless DC motor systems, the authors propose considering
the nonlinear term of the equation as a disturbance and to realize a
sensorless control of the brushless DC motor using both the disturbance
observer and the adaptive velocity estimation. With proper pole
locations of the disturbance observer, stability of the position
estimation is guaranteed, and stability of the adaptive velocity
estimation is also guaranteed by Popov's hyperstability theory. The
experimental results show that the proposed method is very useful
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