Methods of DC motor control, non-regenerative controlled rectifiers, fully controlled converters, field control, switching systems for DC motors, chopper regulators, aspects of analysis, performance, and stability of variable speed dc drives; Induction motor control systems, ac regulators and static switches, control of effective rotor resistance, recovery of slip energy, variable frequency control of ac motors, current source inverter fed Induction motor drive, forced commutated inverter fed drives, self-controlled synchronous motor drives, and traction drives. Analysis, performance, and stability of synchronous and asynchronous drives. solar and battery-powered drives.