Papers Published

1. Adhikary, S; Chatterjee, D; Chakrabarty, K, Control of Bifurcation in a PWM Controlled dc Series Motor Drive, 2020 Ieee Calcutta Conference, Calcon 2020 Proceedings (February, 2020), pp. 263-267 [doi] .
   (last updated on 2022/12/30)

   Abstract:
   This paper presents a study on bifurcation behavior of a PWM controlled dc series drive to depict the occurrence of different nonlinear behavior including chaos against variation in load torque. In particular, authors have proposed a systematic method to determine amplitude and phase of a sinusoidal signal to be added to the switching surface of a PWM controlled chopper to avoid occurrence of the bifurcation as in many applications bifurcation of period-1 orbit to higher periodic orbit is not desirable. Experimental investigations are also performed on a prototype 500 watt, 220 volt, 1800rpm dc series motor to validate the proposed method.