AE 308: Control Theory
Prof. Aniruddha Sinha
Closed-Loop Response Characteristics
Department of Aerospace Engineering, IIT Bombay
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Closed-Loop Response Characteristics
Lesson Objectives
By the end of this lesson, you should be able to
Specify the t
Nyquist Stability Analysis
Nyquist Plot based Stability Concept
Conformal Mapping Theorem
Nyquist Curve
Stability Criterion
Nyquist Stability Analysis
It is a method for analyzing the stability of a unity
feedback close loop system from open loop Nyqu
Frequency Response Concept
Frequency Response Concept
Frequency Response Definition
Various Representations of Frequency Response
Frequency Response Concept
Relative stability characteristics of a close loop system
depend on the location of dominant sy
AE 308: Control Theory
Prof. Aniruddha Sinha
Root Locus Advanced
Department of Aerospace Engineering, IIT Bombay
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Root Locus Advanced
Lesson Objectives
Root locus for control systems with a more general free parameter
Eect of positive feedback
2/8
Ex
Classical Control Design Basics
Design Problem Definition
Benchmark Dominant Behaviour
Design Specifications in s Domain
Control Design Tasks
Control design tasks consist of two parts; (i) required
closed loop performance; and (ii) design of control
el
AE 308: Control Theory
Prof. Aniruddha Sinha
Stability of Systems
Department of Aerospace Engineering, IIT Bombay
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Stability of Systems
Lesson Objectives
By the end of this lesson, you should be able to
Dene system stability
Explain how stability
Lead Compensator Designs
Lead Compensation Design Strategy
Lead Compensator Concept
Lead compensators are used to improve the overall
transient response of the closed loop system, as an
alternative to the PD control action.
Lead compensator adds also a p
AE 308: Control Theory
Prof. Aniruddha Sinha
Root Locus Basics
Department of Aerospace Engineering, IIT Bombay
1 / 25
Root Locus Basics
Lesson Objectives
By the end of this lesson, you should be able to
Explain the relevance of the root locus for designi
AE 308: Control Theory
Prof. Aniruddha Sinha
System Response
Department of Aerospace Engineering, IIT Bombay
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System Response
Lesson Objectives
By the end of this lesson, you should be able to
Explain the importance of system response for control e
Alternative P-Design Situations
Dominant 3rd Order Closed Loop System
Dominant 3rd Order System with Zero
2nd Order Dominant Applicability
In general, for the design based on the dominant 2nd
order system specifications to be reasonably accurate,
follow
Single Correct type :
1. When rain is accompanied by a thunderstorm, the collected rain water will have pH value
(a) slightly higher than that when the thunderstorm is not there
(b) uninfluenced by occurrence of thunderstorm
(c) which depended on the amou