Control Systems Lab.

The lab has equipments necessary for the study of control systems like DC servomechanisms, speed control kits, AC servomotor study kits, synchros and MATLAB systems.

Specifications of Equipments

EQUIPMENT NAME

SPECIFICATION

Signal Generator (low distortion)

Aplab make, Model: 2014 sine/square signal

Digital Storage Oscilloscope

Make-HP, Model: HP54600B, 2 channel, 100MHz

Decade Inductance box

AEC make, model: DCB-4, 1mH-10H with 4 decade switches

Decade Capacitance box

AEC Make, DCB-5, 100pF-11.111MF with 4 decade switches

 cont lab

Exercises Conducted:

  • Simulation of a typical second order system and determination of step response and evaluation of time-domain specifications.
  • a)To design a passive RC load compensating network for the given specifications viz. the maximum phase load and the frequency at which it occurs and to obtain its frequency response. b)To determine experimentally the transfer function of the lead compensating network.
  • a)To design a passive RC lag compensating network for the given specifications viz. the maximum phase lag and the frequency at which it occurs and to obtain its frequency response. b)To determine experimentally the transfer function of the lag compensating network.
  • Experiment to draw the frequency response characteristic of a given lag-lead compensating network.
  • To study the effect of P,PI,PD and PID controller on the step response of a feedback control system(using control engineering trainee/process control simulator)
  • Experiment to draw the speed-torque characteristics of a 2-phase A.C. Servomotor.
  • Experiment to draw the speed-torque characteristic of a D.C.Servomotor
  • T determines the frequency response of a second order system and evaluation of frequency domain specifications.
  • For a given third order system(of the type K/S(s+a)(s+b) compute gain cross over frequency and phase cross frequency.Verify the same experimentally.
  • Simulate a D.C. position control system using Matlab and obtain its step response.
  • a)Obtain the phase margin and gain margin for a given transfer function by drawing Bode plots and verify the same using Matlab b)For the same system find the value of gain K for a specified phase margin/gain margin and verify the same using Matlab
  • To draw the root loci for a given transfer function and verification of breakaway point and imaginary axis cross axis using Matlab.