chapter 7: steady-state errors 1 ©2000, john wiley & sons, inc. nise/control systems...

©2000, John Wiley & Sons, Inc.

Nise/Control Systems Engineering, 3/e

Chapter 7: Steady-State Errors1

Chapter 7

Steady-State Errors




Table 7.1Test waveforms for evaluating steady-state errors of position control systems




Figure 7.1Test inputs for steady-state error analysis and design vary with target type




Figure 7.2Steady-state error:a. step input;b. ramp input




Figure 7.3Closed-loop controlsystem error:a. general representation;b. representation forunity feedback systems




Figure 7.4System with:a. finite steady-stateerror for a step input;b. zero steady-stateerror for step input




Figure 7.5Feedbackcontrol system forExample 7.2




Figure 7.6Feedbackcontrol system forExample 7.3




Figure 7.7Feedbackcontrol systems forExample 7.4




Figure 7.8Feedback controlsystem for definingsystem type




Table 7.2Relationships between input, system type, static error constants, and steady-state errors




Figure 7.9A robot used inthe manufacturingof semiconductorrandom-accessmemories (RAMs)similar to those inpersonal computers.Steady-state error is an important design consideration for assembly-line robots.

© Westlight/ Charles O’Rear.




Figure 7.10Feedbackcontrol systemfor Example 7.6




Figure 7.11Feedback controlsystem showingdisturbance




Figure 7.12Figure 7.11 systemrearranged to showdisturbance as input and error as output,with R(s) = 0




Figure 7.13Feedback control system for Example 7.7




Figure 7.14System forSkill-AssessmentExercise 7.4




Figure 7.15Forming an equivalentunity feedbacksystem from ageneral nonunity feedback system




Figure 7.16Nonunity feedbackcontrol system forExample 7.8




Figure 7.17Nonunity feedbackcontrol system withdisturbance




Figure 7.18Nonunity feedbacksystem forSkill-AssessmentExercise 7.5




Figure 7.19Feedback controlsystem for Examples7.10 and 7.11




Figure 7.20Feedbackcontrol systemfor Example 7.12




Figure 7.21System forSkill-AssessmentExercise 7.6




Figure 7.22Video laser discrecording:control system forfocusing write beam




Figure 7.23Video disc laserrecording:a. focus detectoroptics;b. linearized transfer function for focus detector

© 1985, Prentice Hall, Inc.




Figure 7.24Video laser discrecording focusingsystem




Figure P7.1




Figure P7.2




Figure P7.3




Figure P7.4




Table P7.1




Figure P7.5




Figure P7.6




Figure P7.7




Figure P7.8




Figure P7.9




Figure P7.10




Figure P7.11




Figure P7.12




Figure P7.13Closed-loop systems withnonunityfeedback




Figure P7.14




Figure P7.15




Figure P7.16




Figure P7.17




Figure P7.18System with input anddisturbance




Figure P7.19




Figure P7.20System with input anddisturbance




Figure P7.21Automobile guidance systema. displacementcontrol system;b. velocity control loop




Figure P7.22Block diagram of aparamagnetic oxygenanalyzer




Figure P7.24Position controlsystem




Figure P7.25Boat trackedby ship’s radar:a. physicalarrangement;b. block diagram of tracking system




Table 7.1Test waveforms for evaluating steady-state errors of position control systems




Table 7.2Relationships between input, system type, static error constants, and steady-state errors




Table P7.1

chapter 7: steady-state errors 1 ©2000, john wiley & sons, inc. nise/control systems...

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steadystate errors

e chapter

john wiley sons

steadystate error analysis

finite steadystate error

feedback control systems

e figure p7

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