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Design and performance of a new technique for sensorless control of a downhole brushless PM motor

Design and performance of a new technique for sensorless control of a downhole brushless PM motor
Design and performance of a new technique for sensorless control of a downhole brushless PM motor
A new technique for sensorless control of a downhole brushless PM motor connected through a long cable has been described. The cable was assumed to be represented by an RL equivalent circuit. The position estimator structure is simple because its avoids the problems of integration and differentiation of voltage and current signals. The practical implementation of the technique using a DSP system revealed that the noise on the estimated position makes it is necessary to retune the drive, to reduce the response time of its speed control system. Without any special starting procedure, which requires control of the switching of the inverter devices, the motor starting and reversing performance is not satisfactory. Work is in progress to improve the starting and reversing performance of the drive.
456
263-268
Institute of Electrical and Electronics Engineers
Abu-Sharkh, S.M.
97666072-939a-4569-a7ff-76788db2da34
Barinberg, V.
faf5ff30-eee7-44b0-90c1-b5ccdb9bdd69
Abu-Sharkh, S.M.
97666072-939a-4569-a7ff-76788db2da34
Barinberg, V.
faf5ff30-eee7-44b0-90c1-b5ccdb9bdd69

Abu-Sharkh, S.M. and Barinberg, V. (1998) Design and performance of a new technique for sensorless control of a downhole brushless PM motor. In Seventh International Conference on Power Electronics and Variable Speed Drives, 1998. Institute of Electrical and Electronics Engineers. pp. 263-268 .

Record type: Conference or Workshop Item (Paper)

Abstract

A new technique for sensorless control of a downhole brushless PM motor connected through a long cable has been described. The cable was assumed to be represented by an RL equivalent circuit. The position estimator structure is simple because its avoids the problems of integration and differentiation of voltage and current signals. The practical implementation of the technique using a DSP system revealed that the noise on the estimated position makes it is necessary to retune the drive, to reduce the response time of its speed control system. Without any special starting procedure, which requires control of the switching of the inverter devices, the motor starting and reversing performance is not satisfactory. Work is in progress to improve the starting and reversing performance of the drive.

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More information

Published date: 1998
Venue - Dates: Seventh InternationalConference on Power Electronics and Variable Speed Drives (PEVD98), 1998-09-21 - 1998-09-23

Identifiers

Local EPrints ID: 21248
URI: https://eprints.soton.ac.uk/id/eprint/21248
PURE UUID: 2161c757-c5c0-4776-b566-0553c2e0e163

Catalogue record

Date deposited: 15 Nov 2006
Last modified: 17 Jul 2017 16:27

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Contributors

Author: S.M. Abu-Sharkh
Author: V. Barinberg

University divisions

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