An online algebraic estimation approach of parameters and variable mechanical torque in shunt DC motors.

Summary: Classical control design methods have been successfully applied to several practical engineering systems for regulation tasks around a desired equilibrium operation state. Nevertheless, real‐time information of some system parameters and mechanical torque could be required to guarantee an efficient and robust control performance for variable operation conditions. In this paper, an online and algebraic scheme is proposed for simultaneous estimation of parameters and variable mechanical load torque for nonlinear shunt DC motors. An adaptive PI velocity tracking control scheme is also described to verify the effectiveness and efficiency of the parametric estimation approach. Control dynamic gains are computed online by applying a B‐spline neural network algorithm. Computational simulation results confirm the fast estimation of parameters and variable mechanical torque. [ABSTRACT FROM AUTHOR]