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MEMS gyroscope control using a novel compound robust control.

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  • 1Department of Mechanical Engineering, University of Tabriz, Tabriz, Iran.

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|December 9, 2017
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Summary
This summary is machine-generated.

This study introduces a new compound fractional order integral terminal sliding mode control (FOITSMC) with proportional-derivative (PD) control to enhance MEMS gyroscope stability. The novel PD-FOITSMC effectively suppresses chattering and improves robustness against un-modeled dynamics.

Keywords:
Chattering reductionCompound controllerFractional integral terminal sliding mode controlMEMS gyroscopePD controller

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Area of Science:

  • Control Systems Engineering
  • Micro-Electro-Mechanical Systems (MEMS)
  • Robotics and Automation

Background:

  • MEMS gyroscopes are crucial for inertial navigation but susceptible to performance degradation.
  • Conventional Integral Terminal Sliding Mode Control (ITSMC) offers robustness but suffers from chattering.
  • Fractional order control presents opportunities for enhanced system performance and robustness.

Purpose of the Study:

  • To propose a novel compound fractional order integral terminal sliding mode control (PD-FOITSMC) for MEMS gyroscopes.
  • To address and mitigate the chattering phenomenon inherent in fractional order sliding mode control.
  • To improve the robustness and stability of MEMS gyroscope control systems.

Main Methods:

  • Development of a compound fractional order integral terminal sliding mode control (FOITSMC) strategy.
  • Integration of a proportional-derivative (PD) controller to suppress chattering in FOITSMC.
  • Stability analysis of the proposed PD-FOITSMC using Lyapunov theory.
  • Comparative numerical simulations against ITSMC and FOITSMC.

Main Results:

  • The proposed PD-FOITSMC effectively suppresses the chattering phenomenon.
  • The fractional integral terminal sliding mode surface enhances robustness compared to conventional ITSMC.
  • Numerical simulations demonstrate superior performance of PD-FOITSMC over ITSMC and FOITSMC.
  • Lyapunov stability theory confirms the stability of the PD-FOITSMC system.

Conclusions:

  • The PD-FOITSMC is a highly effective control strategy for MEMS gyroscopes.
  • This method significantly improves robustness and eliminates chattering, outperforming existing controllers.
  • The proposed control approach offers a promising solution for high-performance MEMS gyroscope applications.