## Feedback control systems |

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### Contents

MODELS OF PHYSICAL SYSTEMS | 13 |

STATEVARIABLE MODELS | 69 |

SYSTEM RESPONSES | 115 |

Copyright | |

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### Common terms and phrases

amplitude analog systems analysis and design angle approximately bandwidth block diagram Bode diagram calculated chapter circuit closed-loop pole closed-loop system closed-loop transfer function coefficients Consider the system constant dc gain derived design procedure determine difference equation differential equations estimator first-order flow graph frequency response function is given Gc(s given in Figure Gp(s Hence ideal sampler illustrated initial conditions Laplace transform limit cycle magnitude Mason's gain formula matrix nonlinear system Note Nyquist criterion Nyquist diagram Nyquist path open-loop function overshoot parameters PD compensator phase margin phase-lag compensator phase-lead physical system PID controller plant transfer function plot polynomial root locus Routh-Hurwitz criterion s-plane sampled-data system sampling satellite second-order system Section sensor shown in Figure signal simulation diagram sinusoid solve steady-state error step response system characteristic equation System for Problem system is stable system of Example system of Figure techniques term transient response variable vector voltage yields z-transform zero-order hold