CLC number: TM921
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2008-11-10
Cited: 3
Clicked: 7421
Abolfazl HALVAEI NIASAR, Abolfazl VAHEDI, Hassan MOGHBELLI. Low-cost sensorless control of four-switch, brushless DC motor drive with direct back-EMF detection[J]. Journal of Zhejiang University Science A, 2009, 10(2): 201-208.
@article{title="Low-cost sensorless control of four-switch, brushless DC motor drive with direct back-EMF detection",
author="Abolfazl HALVAEI NIASAR, Abolfazl VAHEDI, Hassan MOGHBELLI",
journal="Journal of Zhejiang University Science A",
volume="10",
number="2",
pages="201-208",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820097"
}
%0 Journal Article
%T Low-cost sensorless control of four-switch, brushless DC motor drive with direct back-EMF detection
%A Abolfazl HALVAEI NIASAR
%A Abolfazl VAHEDI
%A Hassan MOGHBELLI
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 2
%P 201-208
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820097
TY - JOUR
T1 - Low-cost sensorless control of four-switch, brushless DC motor drive with direct back-EMF detection
A1 - Abolfazl HALVAEI NIASAR
A1 - Abolfazl VAHEDI
A1 - Hassan MOGHBELLI
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 2
SP - 201
EP - 208
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0820097
Abstract: We propose a position sensorless control scheme for a four-switch, three-phase brushless DC motor drive, based on the zero crossing point detection of phase back-EMF voltages using newly defined error functions (EFs). The commutation instants are 30° after detected zero crossing points of the EFs. Developed EFs have greater magnitude rather than phase or line voltages so that the sensorless control can work at a lower speed range. Moreover, EFs have smooth transitions around zero voltage level that reduces the commutation errors. EFs are derived from the filtered terminal voltages vao and vbo of two low-pass filters, which are used to eliminate high frequency noises for calculation of the average terminal voltages. The feasibility of the proposed sensorless control is demonstrated by simulation and experimental results.
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