INSTRUMENTS and CONTROLS

BAE 3023

SPRING 2005

Homework Assignment #6

 

Department of Biosystems and Agricultural Engineering                                           Phone:    (405) 744-4337

Oklahoma State University                                                                                              Fax:   (405) 744-6059

Stillwater, OK 74078                                                                                         EMAIL: mstone@okstate.edu

 

Use the Thomas Co simulator (http://www.chem.mtu.edu/~tbco/cm416/pidchoice.html) to tune a PID controller for System A and System B in the simulator.  For each system, tune the controller using:

 

a.  Zeigler-Nichols field tuning method  (Table 7-1.1)

b.  Zeigler-Nichols Quarter Decay Ratio method (Table 7-2.1)

c.  Minimum Error Integral Tuning based on ITAE for a setpoint change  (Table 7-2.3)

 

 Provide the tuning settings (and FOPDT model for b and c)  for each System (3 sets of  values, Kc, Ti, Td,  for each System).

 

Capture the data for a step test of 0.1 magnitude for each tuning configuration for System A.  (Use ctl-C to copy the data table after pressing the pause button and paste the data into a spreadsheet)  Calculate ITAE for each of the step responses and determine which tuning method is best for this situation.

 

Complete this assignment and turn in by March 23rd.