MOTOR SPEED SENSING TECHNIQUES FOR INDUCTION MOTORS

Mbachu, C. B.; Ulasi, A. J.; Nnake, E. J.

Authors & affiliations

Mbachu, C. B.

Department of Electrical/Electronic Engineering, Chukwuemeka Odumegwu Ojukwu University, Uli, Nigeria

Ulasi, A. J.

Department of Electrical/Electronic Engineering, Chukwuemeka Odumegwu Ojukwu University, Uli, Nigeria

Nnake, E. J.

Department Of Electrical/Electronic Engineering, Federal Polytechnic, Oko, Nigeria.

Abstract

Summary

Correct sensing, transmission and display of revolution per minute (rpm) speed of shafts is very important for
smooth running and control of induction motors. Speed sensors sense shaft speed. Therefore, sensors are a
critical component in a motor control system. When speed sensors are used in closed loop for feedback in a
motor control system, it enables the designer to adjust the stator voltage/frequency relationship to realize the
desired speed with minimal losses and improve the motor’s reliability by detecting fault conditions that may
damage the motor. RPM sensors that can be used to feedback information to microcontroller include shaft
encoders, proximity sensors, photoelectric sensors, sitrans WS300, quadrature encoder and Hall Effect
tachometer. When choosing sensors, it is necessary to make sure the resolution of the sensor is appropriate for
the speed of the shaft. Two factors that affect the quality of speed data (which are in form of pulses) are number
of pulses per revolution (PPR) of the shaft and symmetry of the pulses.

Keywords

Index Terms

RPM PPR Closed Loop Feedback

Citation & details

How to cite this article

Authors: Mbachu, C. B., Ulasi, A. J., Nnake, E. J.

Volume/Issue: Volume 1, Issue 2

Pages: 1-6

Published: November 30, 2016

Affiliations: Department of Electrical/Electronic Engineering, Chukwuemeka Odumegwu Ojukwu University, Uli, Nigeria, Department Of Electrical/Electronic Engineering, Federal Polytechnic, Oko, Nigeria.

Mbachu, C. B., Ulasi, A. J., Nnake, E. J. (2016). MOTOR SPEED SENSING TECHNIQUES FOR INDUCTION MOTORS. International Journal of Innovative Engineering, Technology & Science (IJIETS), Volume 1, Issue 2, 1-6.

Mbachu, C. B., Ulasi, A. J., Nnake, E. J.. "MOTOR SPEED SENSING TECHNIQUES FOR INDUCTION MOTORS." International Journal of Innovative Engineering, Technology & Science (IJIETS), vol. Volume 1, Issue 2, 2016, pp. 1-6.

Mbachu, C. B., Ulasi, A. J., Nnake, E. J.. "MOTOR SPEED SENSING TECHNIQUES FOR INDUCTION MOTORS." International Journal of Innovative Engineering, Technology & Science (IJIETS) Volume 1, Issue 2 (2016): 1-6.

@article{motorspeedsensingtechniquesforinductionmotors2016, author = {Mbachu, C. B. and Ulasi, A. J. and Nnake, E. J.}, title = {MOTOR SPEED SENSING TECHNIQUES FOR INDUCTION MOTORS}, journal = {International Journal of Innovative Engineering, Technology & Science (IJIETS)}, year = {2016}, volume = {Volume 1, Issue 2}, pages = {1-6} }

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