Title :
A novel closed loop operated soft switched DC to DC converter fed DC motor for electric vehicles
Author :
Ume, G. ; Chellamutha, C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Anna Univ., Chennai
Abstract :
A new feedback control scheme of DC motors which can can be easily implemented using PWM DC-DC power converters is proposed. This control minimizes the switching losses, eliminates electromagnetic interference (EMI) and improves efficiency. The simulation of the open loop and closed loop operations of a buck-boost constant frequency (CF) zero voltage switching (ZVS) quasi-resonant power converter (QRC) feeding a DC motor is discussed in the present work. The above operations are accomplished by controlling the free wheeling period of the resonant inductor. A PI controller is designed to get better performance under load conditions. DC motors fed by this converter find applications in battery operated vehicles and aerospace control systems. The software package PSPICE A/D is used for simulation
Keywords :
DC motors; DC-DC power convertors; PWM power convertors; closed loop systems; control system analysis computing; control system synthesis; electric vehicles; feedback; machine control; machine theory; resonant power convertors; switching circuits; two-term control; DC motor; EMI elimination; PI controller design; PSPICE A/D; PWM DC-DC power converters; ZVS; closed loop operation; computer simulation; control performance; control simulation; efficiency improvement; electric vehicles; electromagnetic interference; feedback control; open loop operation; quasi-resonant power converter; resonant inductor free wheeling period; switching losses; zero voltage switching; DC motors; DC-DC power converters; Electromagnetic interference; Feedback control; Frequency conversion; Open loop systems; Pulse width modulation; Pulse width modulation converters; Switching loss; Zero voltage switching;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.849981
