Research on state feedback of two-mass system based on weight coefficient

There is a general phenomenon of dynamic disturbances caused by the mechanical resonance caused by the elasticity of the connecting device and the change of the load in the common electric traction mechanism such as rolling mill and robot joint. Aiming at this problem, the two - mass modeling of the rolling mill and other transmission equipment is carried out, and the related mechanism is analyzed. A combination of the fractional - order perturbation observer and the state observer is proposed to make the system have better performance to suppress the dynamic change. On this basis, the weight coefficient is introduced on the positive and negative feedback loop to solve the contradiction between the two constraints. It aims to improve the servo system response performance by adjusting the weight coefficient. In this paper, the resonant suppression function and anti - jamming capability of different weight coefficients are verified.

[1]  T. Rehm,et al.  Reducing the effect of load torque disturbances in dual inertia systems with lost motion , 2004, Proceedings of the 2004 American Control Conference.

[2]  Kyo-Beum Lee,et al.  Improvement of low speed operation of electric machine with an inertia identification using ROELO , 2004 .

[3]  Zhiqiang Gao,et al.  Active disturbance rejection control: a paradigm shift in feedback control system design , 2006, 2006 American Control Conference.

[4]  Han Ho Choi,et al.  Digital Implementation of an Adaptive Speed Regulator for a PMSM , 2011, IEEE Transactions on Power Electronics.

[5]  T. Kuo.  A Novel Motor Drive Design for Incremental Motion System via Sliding-Mode Control Method , 2011 .

[6]  Shihua Li,et al.  Speed Control for PMSM Servo System Using Predictive Functional Control and Extended State Observer , 2012, IEEE Transactions on Industrial Electronics.

[7]  Zhiqiang Gao,et al.  On observer-based Active Vibration Control of two-inertia systems , 2013, 2013 American Control Conference.

[8]  Jianbo Sun,et al.  Speed control with vibration suppression of two-inertia servo system based on resonance ratio control , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[9]  Ming Yang,et al.  Fast identification of resonance characteristic for 2-mass system with elastic load , 2014, 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA).

[10]  Dianguo Xu,et al.  Mechanical resonance suppression in servo system based on the fractional order low-pass filter , 2015, 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia).