Post on 19-Nov-2015
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Stability of Digital Control System
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Stability is a basic requirement for digital and analog control systemsAsymptotic StabilityBounded Input Bounded Output
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Observe
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Asymptotic Stability for Digital Control SystemBIBO Stability
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Internal Stability
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Routh-Hurwitz CriterionBilinear transformation transforms the inside of the unit circle to the LHP (Left Half Plane).Bilinear TransformationExample :Substituting the bilinear transformationstability conditions
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Jury Criterion
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Example :We compute the entries of the Jury table using the coefficients of the polynomial
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Transient and Steady State AnalysisTransient Analysis
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Steady State Error AnalysisFinal Value Theorem
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1) For unity feedback in figure below,2)
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