Title :
Nonlinear speed controllers for series DC motor
Author :
Liu, Zuo Z. ; Luo, Fang L. ; Rashid, Muhammad H.
Author_Institution :
Nanyang Technol. Inst., Singapore
Abstract :
This paper addresses the speed control of a series DC motor. Based on the nonlinear motor system dynamics, the analysis and design of two novel speed controllers are presented, which are nonlinear PI and integrator backstepping controllers. The speed response following step changes in speed reference and load torque, using the proposed nonlinear controllers and traditional linear PI controllers, is compared to evaluate their merits. It is shown that the proposed controllers can provide stable and more excellent dynamic control performance than that of the traditional PI controllers in terms of rise time, overshoot and steady state error
Keywords :
DC motors; angular velocity control; control system analysis; control system synthesis; machine control; nonlinear control systems; two-term control; dynamic control performance; integrator backstepping controller; linear PI controllers; load torque; nonlinear PI controller; nonlinear motor system dynamics; nonlinear speed controllers; overshoot; rise time; series DC motor; speed reference; speed response; steady state error; Backstepping; Control systems; DC motors; Induction motors; Magnetic circuits; Nonlinear control systems; Nonlinear dynamical systems; Permanent magnet motors; Torque control; Velocity control;
Conference_Titel :
Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on
Print_ISBN :
0-7803-5769-8
DOI :
10.1109/PEDS.1999.794584
