Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Identification of mechanical parameters for position-controlled servo systems using sinusoidal commands

  • Yoo, Min-Sik (Department of Automotive Engineering, Hanyang University) ;
  • Choi, Seung-Cheol (Department of Automotive Engineering, Hanyang University) ;
  • Park, Sang-Woo (Department of Automotive Engineering, Hanyang University) ;
  • Yoon, Young-Doo (Department of Automotive Engineering, Hanyang University)
  • Received : 2020.06.09
  • Accepted : 2020.08.08
  • Published : 2020.11.20
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Abstract

This paper proposes an identification method for mechanical parameters based on position control. To improve motion control performance, the moment of inertia and friction components must be considered. Based on mechanical equations, the proposed method estimates the moment of inertia, viscous friction coefficient, and Coulomb friction in the off-line state. Mechanical parameters are obtained from the integral values for the products of the torque, speed, and position using the 90° phase relationship between acceleration and velocity. Simulation and experimental results demonstrate the validity and accuracy of the proposed method. Since its implementation is simple, this method can be applied easily to industry.

Keywords

Acknowledgement

This work was supported by the Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning(KETEP) granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea under Grant 20193010025790.

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