Chapter 9
Frequency-Response Analysis
The objective of this chapter is to develop frequency response techniques for control-system analysis and design. After studying this chapter, the reader should be able to
Substitute , and find Bode or Nyquist plots for a transfer function.
Given a Bode plot, construct a Nyquist plot.
Understand the concepts of “all-pass” and “nonminimum phase.”
Understand the effect of gains, time constants, right half-plane (RHP) zeros, and time delays on amplitude ratios and phase angles.
Find the gain and phase margins for a given process and controller.
Tune a controller to achieve a given gain or phase margin.
Determine the amount of deadtime or gain uncertainty that can be tolerated before a closed-loop system ...
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