Praveen Kumar Nambisan.T.M, Dr.B.N.Sarkar
This paper presents modelling and numerical simulation as well as prototype for speed control of DC series motor using a DC chopper. The pulse-width modulation method of control of semiconductor devices can help in controlling the output voltage of DC drives in turn controlling the speed for a wide range. The system is modelled and simulated to study the transient and steady state behaviour. Pulse-width modulation is a widely used technique for control of power converters and motors. The hardware model of the proposed system is built in the laboratory and experimentally to examine the system. The simulation results and experimental results are found to be in good agreement.