Performance improvement of motion control systems with low resolution position sensors using MEMS accelerometers

Kazuaki Ito, Riccardo Antonello, Roberto Oboe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a use of MEMS accelerometers for performance improvement of motion control systems equipped with low resolution position sensors. It is well-known that control performance depends on hardware performance such as a sensor resolution and a computational power. Above all, the use of low resolution sensors restricts the achievable enhancements on the control bandwidth, due to quantization noise. In this paper it is proposed to overcome such limitation by using a Kalman estimator, utilizing the measurements provided by a low cost MEMS accelerometer in the estimation of position information. Moreover, the same measurement is used for the acceleration based disturbance observer (a-DOB), where no differentiator is needed to estimate the disturbance, so that a better estimation capability and positioning performance can be achieved. The effectiveness of the proposed control system has been verified by several experiments using a prototype of a table system.

Original languageEnglish
Title of host publicationIECON Proceedings (Industrial Electronics Conference)
Pages6526-6532
Number of pages7
DOIs
Publication statusPublished - 2013
Event39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria
Duration: Nov 10 2013Nov 14 2013

Other

Other39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013
CountryAustria
CityVienna
Period11/10/1311/14/13

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ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Ito, K., Antonello, R., & Oboe, R. (2013). Performance improvement of motion control systems with low resolution position sensors using MEMS accelerometers. In IECON Proceedings (Industrial Electronics Conference) (pp. 6526-6532). [6700211] https://doi.org/10.1109/IECON.2013.6700211