A discrete-time framework for proximate time-optimal performance of damped servomechanisms

作者：Flores, J. V.; Salton, A. T.^*; Gomes da Silva, J. M.; Neto, N. B.; Chen, Z.

来源：Mechatronics, 2016, 36: 27-35.

DOI：10.1016/j.mechatronics.2016.04.003

• Proximate time-optimal Servomechanism
• Control saturation
• Sector-bounded nonlinearity
• Linear matrix inequalities (LMI)

This paper proposes nonlinear control strategies for the discrete-time near time-optimal control of damped servomechanisms. Both the well established Proximate Time Optimal Servomechanism (PTOS) and its dynamically damped version (ddPTOS) are extended for damped systems. Stability results are presented in a general discrete-time framework suitable for both damped and undamped systems. These results allow the reduction of constraints in the traditional PTOS - particularly regarding the acceleration discount factor while encompassing the nonlinear damping of the ddPTOS. Experimental results demonstrate the efficiency of the proposed controllers.

• 出版日期2016-6
• 单位华中科技大学