Design of hybrid closed loop control systems for a MEMS accelerometer using nonlinear control principles

Amir Farokh Payam, Faezeh Arab Hassani, Morteza Fathipour

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This paper presents and compares two novel hybrid control algorithms applicable to the conventional capacitive MEMS accelerometer. These schemes are realized by separately adding a sliding-mode and a backstepping controller to a conventional PID closed loop system to achieve higher stability and higher dynamic range and to prevent pull-in phenomena by preventing finger displacement from passing a maximum preset value, a criteria which is necessary for a shock resistance system. The analysis of convergence and resolution show that while the proposed control schemes satisfy these criteria they also keep resolution performance better than what is normally obtained in conventional PID controllers. The performance of the two proposed hybrid controllers investigated here is compared and validated by computer simulation.
Original languageEnglish
Pages (from-to)164-170
JournalInternational Review of Aerospace Engineering
Volume7
Issue number5
DOIs
Publication statusPublished - Oct 2014

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Keywords

  • Sliding-Mode Controller
  • Backstepping Controller
  • Closed Loop Control
  • MEMS Accelerometer
  • PID Controller

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