EE2352 Solid State Drives - SUBJECT CATALOG

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SYLLABUS:

EE2352           SOLID STATE DRIVES                                                                                L T P C

3 0 0  3

AIM

To study and understand the operation of electric drives controlled from a power electronic converter and to introduce the design concepts of controllers.

OBJECTIVES

·          To understand the stable steady-state operation and transient dynamics of a motor-load system.

·          To study and analyze the operation of the converter / chopper fed dc drive and to solve simple problems.

·          To study and understand the operation of both classical and modern induction motor drives.

·          To understand the differences between synchronous motor drive and induction motor drive and to learn the basics of permanent magnet synchronous motor drives.

·          To analyze and design the current and speed controllers for a closed loop solid-state DC

motor drive and simulation using a software package

UNIT I DRIVE CHARACTERISTICS           9

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       9

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         9

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 package.

UNIT IV           INDUCTION MOTOR DRIVES        9

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            9

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.

TOTAL : 45 PERIODS

TEXT BOOKS:

1.  Gopal K.Dubey, “Power Semi conductor controlled drives “ Prentice Hall Inc., New Jersey 1989.

2.  Bimal K. Bose. ‘Modern Power Electronics and AC Drives’, PHI / Pearson Education, 2002.

REFERENCES:

1.  N.K.De and S.K.Sen Electrical Drices” PHI, 2006 9th print.

2. Murphy J.M.D. and Turnbull, “ Thyristor control of AC Motor” Pergamon Press Oxford 1988.

3.   R. Krishnan, ‘Electric Motor & Drives   Modeling, Analysis and Control’, Prentice Hall of India,

2001.