EE8353 Electrical Drives and Controls Notes

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UNIT I INTRODUCTION

Basic Elements
Types of Electric Drives
factors influencing the choice of electrical drives
heating and cooling curves
Loading conditions and classes of duty
Selection of power rating for drive motors with regard to thermal overloading and Load variation factors

UNIT II DRIVE MOTOR CHARACTERISTICS

Mechanical characteristics
Speed-Torque characteristics of various types of load and drive motors
Braking of Electrical motors
DC motors: Shunt, series and compound
single phase and three phase induction motors.

UNIT III STARTING METHODS

Types of D.C Motor starters
Typical control circuits for shunt and series motors
Three phase squirrel cage and slip ring induction motors.

UNIT IV CONVENTIONAL AND SOLID STATE SPEED CONTROL OF D.C. DRIVES

Speed control of DC series and shunt motors
Armature and field control,
Ward-Leonard control system
Using controlled rectifiers and DC choppers
applications.

UNIT V CONVENTIONAL AND SOLID STATE SPEED CONTROL OF A.C. DRIVES

Speed control of three phase induction motor
Voltage control,
voltage / frequency control,
slip power recovery scheme
Using inverters and AC voltage regulators
applications.

OUTCOME

  • Upon Completion of this subject, the students can able to explain different types of
    electrical machines and their performance

TEXT BOOKS

  1. Nagrath .I.J. & Kothari .D.P, “Electrical Machines”, Tata McGraw-Hill, 2006
  2. Vedam Subrahmaniam, “Electric Drives (Concepts and Applications)”, Tata McGraw-Hill, 2010

REFERENCES

  1. Partab. H., “Art and Science and Utilisation of Electrical Energy”, Dhanpat Rai and Sons, 2017
  2. Pillai.S.K “A First Course on Electric Drives”, Wiley Eastern Limited, 2012
  3. Singh. M.D., K.B.Khanchandani, “Power Electronics”, Tata McGraw-Hill, 2006.