Nichols Chart Design

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Nichols Chart Design
1010605 Nichols Chart Design
DESIGN PHILOSOPHY Design by analysis in the frequency domain using Nichols chart techniques is performed in the same general manner as the design methods described in previous chapters: appropriate compensation networks are introduced in the forward and/or feedback paths and the behavior of the resulting system is critically analyzed. In this manner, the Nichols chart plot is shaped and reshaped until the performance specifications are met. These specifications are most conveniently expressed in terms of frequency-domain figures of merit such as gain and phase margin for transient performance and the error constants (
Joseph J. DiStefano, III, PhD; Allen R. Stubberud, PhD; Ivan J. Williams, PhD: Schaum's Outline of Feedback and Control Systems, Second Edition. Nichols Chart Design, Chapter (McGraw-Hill Professional, 2014), AccessEngineering Export