Analysis of switching loss in chaotic and non-chaotic state of PMDC drive

Chaos in a fixed frequency dc chopper fed PMDC drive system is realized in current control mode. The dynamical system of voltage and current control mode are described by the state space representation in the continuous conduction mode. Two different tools are used to detect the chaos. The chaotic phenomena are observed by varying the speed error amplifier gain of the motor. A special observation is investigated that the switching loss is less when the system is in chaotic state. To justify the realization switching loss in voltage mode and current controlled mode is calculated. The study is helpful in selecting the range and combination of parameters to run the motor at desired speed with or without chaos.