Title :
Efficiency-optimized speed control system for a separately-excited DC motor
Author :
El-Sattar, A.A. ; Wahsh, S. ; Zaki, A.M. ; Amer, S.I.
Author_Institution :
Ain Shams Univ., Cairo, Egypt
Abstract :
A systematic design method for efficiency-optimized speed control system synthesis is proposed based on the improved optimal regulator theory. The system under consideration is a separately excited DC motor system. The improved optimal regulator theory is applied to this system effectively and the systematic design procedure can be realized. The ratio of the armature current and the field current that gives the maximum efficiency is analytically derived, and the error term of the current ratio is included in the performance index. The desired signal and the disturbance signal are assumed to be step functions. The simulation results are detailed and discussed. The effect of the feed forward components on the system performance is presented
Keywords :
DC motors; feedforward; machine control; optimal control; performance index; velocity control; armature current; current ratio; disturbance signal; efficiency-optimized speed control system; error term; feed forward components; field current; improved optimal regulator theory; performance index; separately-excited DC motor; simulation; Control systems; DC motors; Feeds; Mechanical variables control; Optimal control; Performance analysis; Pi control; Proportional control; Regulators; Velocity control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3026-9
DOI :
10.1109/IECON.1995.483441
