ME2205-ELECTRICAL DRIVES AND CONTROLS |
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. |
REFERENCE |
Text Books |
1. VEDAM SUBRAHMANIAM, “Electric Drives (concepts and applications)”, Tata
McGraw-Hill, 2001
2. NAGRATH.I.J. & KOTHARI.D.P, “Electrical Machines”, Tata McGraw-Hill, 1998 |
Reference Books |
1. PILLAI.S.K “A first course on Electric drives”, Wiley Eastern Limited, 1998
2. M.D.SINGH, K.B.KHANCHANDANI, “Power Electronics”, Tata McGraw-Hill, 1998
3 H.Partab, “Art and Science and Utilisation of electrical energy”, Dhanpat Rai and
Sons, 1994 |