This is not the latest version of this item. The latest version can be found here.
Online Sensorless Position Estimation for Switched Reluctance Motors Using One Current Sensor
Name
Online_Sensorless_Position_Estimation.pdf
Description
Accepted version
Size
2.17 MB
Format
Adobe PDF
Checksum (MD5)
a0972f8ff692646482aff307e7c5998d
Author(s)
Gan, Chun
Wu, Jianhua
Hu, Yihua
Yang, Shiyou
Cao, Wenping
Kirtley, James
Date Issued
2015
Journal
IEEE Transactions on Power Electronics
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Gan, Chun, et al. "Online Sensorless Position Estimation for Switched Reluctance Motors Using One Current Sensor." IEEE Transactions on Power Electronics 31 10 (2016): 7248-63.
Version
Author's final manuscript
Abstract
© 1986-2012 IEEE. This paper proposes an online sensorless rotor position estimation technique for switched reluctance motors (SRMs) using just one current sensor. It is achieved by first decoupling the excitation current from the bus current. Two phase-shifted pulse width modulation signals are injected into the relevant lower transistors in the asymmetrical half-bridge converter for short intervals during each current fundamental cycle. Analog-to-digital converters are triggered in the pause middles of the dual pulse to separate the bus current for excitation current recognition. Next, the rotor position is estimated from the excitation current, by a current-rise-time method in the current-chopping-control mode in a low-speed operation and a current-gradient method in the voltage-pulse-control mode in a high-speed operation. The proposed scheme requires only a bus current sensor and a minor change to the converter circuit, without a need for individual phase current sensors or additional detection devices, achieving a more compact and cost-effective drive. The performance of the sensorless SRM drive is fully investigated. The simulation and experiments on a 750-W three-phase 12/8-pole SRM are carried out to verify the effectiveness of the proposed scheme.
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
10.1109/TPEL.2015.2505706
