PRESENTED BY: -
DIBYENDU CHAKRABORTY

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OBJECTIVE
REMOTE SPEED CONTROL OF INDUCTION MOTOR:
INTRODUCTION
WHY SPEED CONTROL?
LOAD DEMAND
WHY REMOTE CONTROL?
1.REDUCE HUMAN HAZARD AND INCREASE OF HUMAN SAFETY.
2.REDUCE SYSTEM COST.
PHYSICS OF INDUCTION MOTOR
SPEED TORQUE CHARACTERISTICS
V CONTROL
WHAT IS V CONTROL?
Tα V²
DRAWBACKS
η=(1-s)
f-Control
What is f-control
Drawbacks
v/f-Control
Why V/f Control?
Constant air gap flux
Constant torque
How v/f control?
Six step inverter
PWM inverter
Typical Motor Drive Configuration
DRIVES
Basic information about EMC drive
Appearance
View without front cover
Features
Frequency mode
Accel & Dccel time
Multi step frequency
Direction of the motor
rotation
Lots more
Block diagram
CIRCUIT DIAGRAM
PROGRAM USED
PROGRAM 1
ORG 0000
LJMP MAIN
  ORG 0050
MAIN: MOV A,#128
MOV P1,A
L1: SJMP L1