Mechatronics (Hugh 2001) P1

Discrete - The value to be controlled are easily described as on-off. . the car motor is on-off (like basic pneumatics). NOTE: all systems are continuous (Except for Heisenberg’s electrons) but they can be treated as discrete for simplicity. | Engineer On a Disk Overview This note set is part of a larger collection of materials available at http . You are welcome to use the material under the license provided at http eod global . As always any feedback you can provide will be welcomed. Copyright 1993-2001 Hugh Jack email jackh@ phone 616 771-6755 fax 616 336-7215 Copyright 1993-2001 Hugh Jack page 2 1. TABLE OF CONTENTS TABLE OF PROCESS INTRODUCTION----------------------------------------9 CONTROL SYSTEM CHARACTERISTICS --------------------10 CONTROLLER TYPES-----------------------------------11 PROCESS DIAGRAMS AND SYMBOLS-----------------------11 PRACTICE QUESTIONS --------------------------------11 DISCRETE CONTROLLER DESIGN. 12 POSITIONING CONTROLLERS----------------------------12 TRACKING-------------------------------------------22 DISTURBANCE RESISTANT------------------------------25 MULTI-CONTROLLER SYSTEMS---------------------------28 SAMPLE TIME----------------------------------------34 SUMMARY--------------------------------------------35 PRACTICE PROBLEMS----------------------------------36 DISCRETE DISCRETE SYSTEM MODELLING WITH EQUATIONS ----------38 DISCRETE CONTROLLERS-------------------------------48 BLOCK DIAGRAMS AND TRANSFER FUNCTIONS--------------56 SAMPLING FUNCTIONS ------------------------------- 68 SYSTEM RESPONSE------------------------------------72 STEADY STATE ERROR---------------------------------76 PRACTICE PROBLEMS----------------------------------78 PETRI INTRODUCTION ------------------------------------- 81 IMPLEMENTATION FOR A PLC --------------------------87 PRACTICE PROBLEMS----------------------------------91 CONTINUOUS CONTROL CONTROL SYSTEMS -----------------------------------92 ROOT-LOCUS PLOTS -------------------------------- 113 DESIGN OF CONTINUOUS CONTROLLERS -----------------121 PRACTICE .