Quick Torsion Torque Control Based on Model Error Compensator and Disturbance Observer with Torsion Torque Sensor

Conventionally, I-P-I-P torsion torque control has been proposed for realizing the load-side acceleration control that is a robust motion control for the flexible joint manipulator. However, conventional torsion torque control is designed as a 4th-order delay system and it is difficult to improve the control bandwidth. For this, reducing control-system-order is required. This paper proposes a quick torsion torque control based on a force and position sensors integrated disturbance observer (FPIDO) and a model error compensator (MEC) for improving the performance of human interaction in the flexible joint manipulator. The proposed approach that combines the FPIDO and MEC is capable of control the design of the torsion torque control at the 2nd-order delay system. The proposed approach is verified through numerical simulation and experimental results.

[1]  S.K. Tso,et al.  Experimental study of contact transition control incorporating joint acceleration feedback , 2000 .

[2]  Kouhei Ohnishi,et al.  Disturbance Observer-Based Robust Control and Its Applications: 35th Anniversary Overview , 2019, IEEE Transactions on Industrial Electronics.

[3]  Alessandro De Luca,et al.  Control of generalized contact motion and force in physical human-robot interaction , 2015, 2015 IEEE International Conference on Robotics and Automation (ICRA).

[4]  Kouhei Ohnishi,et al.  TORQUE - SPEED REGULATION OF DC MOTOR BASED ON LOAD TORQUE ESTIMATION METHOD. , 1983 .

[5]  Alessandro De Luca,et al.  Estimation of contact forces using a virtual force sensor , 2014, 2014 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[6]  Nobutomo Matsunaga,et al.  Robust and precise platoon driving control of welfare vehicles along wheel track by using model error compensator , 2015, IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society.

[7]  Aydin Tarik Zengin,et al.  Maneuverability analysis of front drive type personal vehicle stavi using modeling error compensation system , 2013 .

[8]  Kiyoshi Ohishi,et al.  Fine Load-Side Acceleration Control Based on Torsion Torque Sensing of Two-Inertia System , 2020, IEEE Transactions on Industrial Electronics.

[9]  Kiyoshi Ohishi,et al.  High-robust acceleration control using force and position sensors integrated disturbance observer , 2016, IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society.

[10]  K. Ohnishi,et al.  Vibration control of 2 mass resonant system by resonance ratio control , 1993, Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics.

[11]  Hiroshi Fujimoto,et al.  Joint torque control for two-inertia system with encoders on drive and load sides , 2015, 2015 IEEE 13th International Conference on Industrial Informatics (INDIN).

[12]  Yoichi Hori,et al.  Slow resonance ratio control for vibration suppression and disturbance rejection in torsional system , 1999, IEEE Trans. Ind. Electron..