INDUSTRIAL DRIVES & CONTROL

Specific Instructional Objectives

1. INDUSTRIAL DRIVES                                                                        24 hrs

1.1    ELECTRIC MOTOR DRIVE

1.1.1  Define and explain concept of ELECTRIC DRIVE

1.1.2   a) Draw the block diagram of an Electric drive and state function of each Block.

b) Describe briefly types of motor used

c) State and explain the functions of various modulators

d) Describe briefly the source employed in electric drives

e) State the components of control units

1.1.3   State the advantages of electric drives

1.1.4   Compare AC drives with DC drives

1.1.5   State the advantages of variable speed drive

1.2     DRIVEN MACHINE MECHANISM

1.2.1   State the basic factors to be considered in selecting a electric motor for given

Application

1.2.2   Analyze the type of load involved

1.2.3.  Analyze the nature of operation desired

1.2.4.  Analyze the nature of desired steady state operation of drive

1.2.5.  Analyze the classes of motor duty, -continuous running duty[s 1], and short time

Duty [s2] intermittent duty [s3] continuous operation periodic duty [s6]

1.2.6   Analyze the environmental conditions present

1.2.7.  State and explain the classification of drives

a) Group Drive

b) Individual Drive

c) Multi motor driver

d) Multi drive – common DC bus with individual inverter

1.2.9    Explain Four – quadrant (MULTIQUADRANT) operation of electric drive

1.2.10  Draw the block diagram of three phases fully controlled rectifier fed DC drive

And explain its operation-

1.2.11  Draw the block diagram of cycloconverter fed synchronous motor and explain its

Operation

1.2.12  Draw the block diagram of slip recovery system – SLIP RING INDUCTION

MOTOR (STATIC SCHERBIUS SYSTEM) and explain its operation

1.2.13  Draw the block diagram of voltage source inverter fed squirrel cage induction

Motor and explain its operation

1.3   process flow diagram & process involved including selection of

Suitable motors &drives [BLOCK DIAGRAMS OF PROCESS FLOW ONLY]

1.3.1 .1 Draw the process flow diagram of pulp & paper mill & explain various

Process involved such as making pulp [MECHANICAL AND CHEMICAL METHOD] - chipping, digester, BEATER [chemical] grinding [mechanical]&

Making paper -head box-wire section [forming], pressing, drying calendar & reeling section

1.3.1.2  Select a suitable motor and drive for a] grinder, chipper, beaters in

Pulpmanufacturing mill and justify the same. b] LINE SHAFT DRIVE &sectional drive in paper

Manufacturing and justify the same [using slow speed permanent magnet

Synchronous motor-ref- - direct drive ] (refer           dte.kar.nic.in/student)

1.3.2.1  Draw the process flow diagram of reverse hot rolling steel mill and reverse cold rolling mill and Explain various process involved-only rolling mills

1.3.2.2  Select suitable motor and drive for reverse hot rolling mil and reverse cold rolling mill and justify the same [four quadrant operation]

1.3.3.1  Draw the process flow diagram of cement mill and explain various processes such as

Quarry, crushing, raw grinding, rotary kiln, grinding etc. in the manufacture of

Cement [dry process only]

1.3.3.2  select suitable motor and drive for a] crusher b] raw grinding-vertical roller mill

And horizontal ball mill or tube mill. c] Rotary kiln drive-single pinion and twin pinion-pinion and girth gear drive or ring geared mill drive [speed time characteristic-

(refer  dte.kar.nic.in/student)] d] Finish grinding mill-cement mill-ring

Motor or gearless mill drive [GMD] with cyclo converter controlled synchronous motor

(Refer   dte.kar.nic.in/student) in cement Manufacturing and justify the

Selection

1.3.4.1  Draw the process flow diagram of sugar mill [sugar cane] and explain various processes involved

In the manufacture of sugar such as cane cutting, cane crushing, vacuum pan,

Evaporator, centrifuge etc.

for more info:http://rajclick.blogspot.in/2012/01/industrial-drives-control-diploma-in.html

http://www.vssut.ac.in/lecture-notes.php?url=electrical-engineering-eee