PROJECT
Real time analysis of Z-N & ANFIS tuned PI speed
controller based induction motor drive
SUBMITTED TO:
Dr. Arunima Verma
Submitted by:
Uddeshya Kankane(1605220054)
Ujjwal Ranjan Rao (1605220056)
Vaibhav Gaur (1605220057)
CONTENTS :Objective
Problem identification
Vector control
Induction motor modelling
Target achieved
Future goal
Anfis tuned controller design
Hardware implementation
Real time result analysis
Problem identification
 During start-up and other severe transient operations
such as load change, load reversal and braking
induction motor
 draws large currents,
 produces voltage dips,
 oscillatory torques
 Large harmonics in the systems.
Objective
 To reduce the steady state ripple in current.
 To improve the transient characteristic.
 To reduce settling time(ts).
 To reduce peak overshoot.
 To minimize oscillations in torque.
 Smooth speed and torque control.
Methodology
 Vector control of induction motor
Controlling stator mmf with amplitude and phase angle
Controlling IM similar to seperately excited DC motor.
T=kIa If
IM can be controlled like dc motor if the machine is
considered in synchronously rotating reference
frame(de,qe ).
Vector controlled induction motor
analogy
IdsIf
IqsIa
i*ds, i*qs are
direct axis
component
and q axis
comp. of stator
currents
Induction Motor: Theory, Dynamic
Modeling, Simulation and Control
Space vector representation of mmf.
 Unlike phasors, space vectors are also applicable under
dynamic conditions.
MATHEMATICAL RELATIONSHIPS OF THE dq
WINDINGS (AT AN ARBITRARY SPEED ωd)
[Ts]abc->.dq is the transformation matrix.
dq Winding Voltage Equations Stator Windings
Calculating dq winding flux linkages and currents.
MATLAB Simulink
ELECTROMAGNETIC TORQUE
ELECTRODYNAMICS
d- AND q-AXIS EQUIVALENT CIRCUITS
 COMPUTER SIMULATION
 We will use λsd, λsq, λrd,
and λrq as state
variables,and express isd,
 isq, ird, and irq in terms of
these state variables.
 We can calculate dqwinding currents from the
stator and the rotor
 flux linkages of the
respective windings as
follows-
Induction motor model in terms of dq windings
Simulation of IM in Stationary Reference
frame
abc to qd conversion block
Q-axis block
D-axis block
Rotor block
qd to abc conversion block
Progress till now:
 We learned about MATLAB R 2015
Basic MATLAB functions
Basic Programming
 We learned about Simulink
Mathematical model conversion
Block assembling
Graphs & Result Assesment
 Induction Machine
Basic Theory
Dynamic Modeling
Dynamic Simulation
Future Goals:
 Controller :
Theory
Design & Modeling
Implementation
 ANFIS
Theory and Architecture
Design & Training
Implementation
 TESTING
Thank you