EE2352 SOLID STATE DRIVES Lecture Notes for EEE - Sixth (6th) Semester
EE2352 Lecture Notes
UNIT I DRIVE CHARACTERISTICS
Equations governing motor load dynamics - steady state stability - Multi quadrant dynamics -
Acceleration, deceleration, starting and stopping - load torque characteristics of various drives.
UNIT II CONVERTER / CHOPPER FED DC MOTOR DRIVE
Steady state analysis of the single and three phase fully controlled converter fed separately excited
D.C motor drive - Continuous and discontinuous conduction Time ratio and current limit control - 4
quadrant operation of converter.
UNIT III DESIGN OF CONTROLLERS FOR DRIVES
Transfer function for DC motor, load and converter – Closed loop control with current and speed
feedback - Armature voltage control and field weakening mode control, Design of controllers: Current
controller and speed controller - Converter selection and characteristics - Use of simulation software
UNIT IV INDUCTION MOTOR DRIVES
Stator voltage control – energy efficient drive - v/f control, constant air-gap flux – field weakening
mode - voltage/current fed inverters - Block diagram of vector control - closed loop control.
UNIT V SYNCHRONOUS MOTOR DRIVES
V/f control and self-control of synchronous motor – Marginal angle control and power factor control
- Permanent magnet synchronous motor Black diagram of closed loop control.
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