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 IdsIf IqsIa 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