Control Of Rotary Inverted Pendulum System Driven By A Servo-table With Uncertain Rod Homing Position

The rotary inverted pendulum (RIP) is a popular mechatronic system used in control education. Commercial arm-driven RIPs, such as the experimental setup produced by Quanser, are widely used for testing various control algorithms by control engineers. However, some potential common issues in industri...

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Vydáno v:Control Technology and Applications (Online) s. 1159 - 1164
Hlavní autoři: Chen, Zeshen, Yao, Bin
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 16.08.2023
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ISSN:2768-0770
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Abstract The rotary inverted pendulum (RIP) is a popular mechatronic system used in control education. Commercial arm-driven RIPs, such as the experimental setup produced by Quanser, are widely used for testing various control algorithms by control engineers. However, some potential common issues in industrial drive systems, such as sensor calibration error, Coulomb friction, stiction, gear backlash, and flexible modes have been hidden by such well-built setups. To better educate students on handling those common issues, a more reliable RIP is built-in-house at Purdue for undergraduate control experiments. In addition to the classical rigid-body-based RIP system dynamics, detailed system identification for the servo-table is performed revealing significant effects of friction and complex flexible modes. A novel model-based 2-loop control design via pole-placement is proposed to address the issues caused by rod angle calibration error, due to uncertain homing position, in the outer-loop, while the friction effect is sufficiently attenuated in the inner-loop. Better performance is observed when implementing the proposed controller in both simulations and experiments, compared with using the full-state feedback (FSF) and linear quadratic regulator (LQR).
AbstractList The rotary inverted pendulum (RIP) is a popular mechatronic system used in control education. Commercial arm-driven RIPs, such as the experimental setup produced by Quanser, are widely used for testing various control algorithms by control engineers. However, some potential common issues in industrial drive systems, such as sensor calibration error, Coulomb friction, stiction, gear backlash, and flexible modes have been hidden by such well-built setups. To better educate students on handling those common issues, a more reliable RIP is built-in-house at Purdue for undergraduate control experiments. In addition to the classical rigid-body-based RIP system dynamics, detailed system identification for the servo-table is performed revealing significant effects of friction and complex flexible modes. A novel model-based 2-loop control design via pole-placement is proposed to address the issues caused by rod angle calibration error, due to uncertain homing position, in the outer-loop, while the friction effect is sufficiently attenuated in the inner-loop. Better performance is observed when implementing the proposed controller in both simulations and experiments, compared with using the full-state feedback (FSF) and linear quadratic regulator (LQR).
Author Yao, Bin
Chen, Zeshen
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  givenname: Bin
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  email: byao@purdue.edu
  organization: Purdue University,School of Mechanical Engineering,IN,USA,47907
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Snippet The rotary inverted pendulum (RIP) is a popular mechatronic system used in control education. Commercial arm-driven RIPs, such as the experimental setup...
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StartPage 1159
SubjectTerms Calibration
Control design
Friction
Mechatronics
Regulators
Solid modeling
System dynamics
Title Control Of Rotary Inverted Pendulum System Driven By A Servo-table With Uncertain Rod Homing Position
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