Small-signal modeling of the incremental optical encoder for motor control

Thumbnail Image
10239_Current IEEE paper.pdf(1.29 MB)
Accepted version
Vazquez Gutierrez, Yeny
O'Sullivan, Dara L.
Kavanagh, Richard C.
Journal Title
Journal ISSN
Volume Title
Institute of Electrical and Electronics Engineers (IEEE)
Research Projects
Organizational Units
Journal Issue
The small-signal model of the incremental optical encoder introduced in this paper provides an insight on the impact of this sensor in the dynamics of the motion control loop of a motor drive. The model is derived and validated for the most commonly employed speed estimation methods: the pulse count and elapsed time methods. Using the model, the reduction of the phase margin due to the encoder phase lag can be quantified at an early design stage. This model facilitates the design of control techniques to compensate for the phase margin reduction due to the associated feedback delays.
Optical pulses , Estimation , Optical sensors , Motor drives , Delays , Clocks , Optical feedback , Control design , Incremental optical encoder , Dynamics , Small-signal model , Low resolution encoder , Low speed , Motor
Gutierrez, Y. V., Sullivan, D. L. O. and Kavanagh, R. C. (2019) 'Small-signal modeling of the incremental optical encoder for motor control', IEEE Transactions on Industrial Electronics, In Press, doi: 10.1109/TIE.2019.2916307
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.