Title :
A fuzzy based speed controller for soft switched DC to DC converter fed DC servomotor for aero space applications
Author :
Uma, G. ; Latha, J. ; Chellamuthu, C.
Author_Institution :
Sch. of Electr. & Electron., Anna Univ., Chennai, India
Abstract :
A new method of speed control of DC motors using pulse width modulation (PWM) based quasi-resonant (QR) zero voltage switching (ZVS) DC to DC converters is proposed. This control minimizes the switching losses, eliminates electromagnetic interference (EMI) and improves efficiency and commutation capability of the motor. The speed control is achieved by controlling the free wheeling period of the resonant inductor of a quasi-resonant converter (QRC). A half wave (HW) constant frequency (CF) ZVS converter exhibits a nonlinear relationship between its ON time and average output voltage. Hence, a fuzzy speed controller is designed to get better performance under load conditions. The software package PSPICE A/D is used for simulation
Keywords :
DC motors; DC-DC power convertors; aerospace; control system analysis computing; control system synthesis; electric machine analysis computing; fuzzy control; machine control; machine testing; machine theory; resonant power convertors; servomotors; switching circuits; velocity control; DC servomotor; EMI elimination; PSPICE A/D; aerospace applications; commutation capability; computer simulation; control design; control performance; control simulation; efficiency; electromagnetic interference; fuzzy-based speed controller; quasi-resonant ZVS power convertors; soft-switched DC/DC power converter; software package; switching losses reduction; zero voltage switching; Commutation; DC motors; DC-DC power converters; Electromagnetic interference; Fuzzy control; Pulse width modulation; Pulse width modulation converters; Switching loss; Velocity control; Zero voltage switching;
Conference_Titel :
Industrial Electronics, 2000. ISIE 2000. Proceedings of the 2000 IEEE International Symposium on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7803-6606-9
DOI :
10.1109/ISIE.2000.930389
