## Control SystemsModeling of systemsDefinition fo control systems, open loop and closed loop systems. Types of feedback. Modeling of electrical, mechanical and electro mechanical systems, differential equations of physical system.Block Diagrams and Signal Flow GraphsTransfer function block diagram representation and reduction, signal flow graph representation and reduction using Mason's gain formula.Time Response of Feed Back Control SystemsStandard test signals, steady state error analysis, unit step response of first and second order systems, time domain specifications and transient response of a prototype second order system.Stability AnalysisBounded input and bounded output stability, zero input and asymptoic stability, methods of determining stability, Routh-Hurwitz criterion.Root-Locus TechniquesBasic properties and construction.Frequency Domain AnalysisPolar plots, Bode plots, Gain and phase cross over points, frequency domain specifications- resonant peak, resonant frequency and bandwidth. Effect of adding a zero or pole to the forward path transfer function. Nyquist stability criterion, relative stability using polar plot and Bode plot. |

### What people are saying - Write a review

User Review - Flag as inappropriate

gooooood

User Review - Flag as inappropriate

All 5 reviews »very helpful....

### Contents

Chapter1 Basics of Control Systems | 1 |

Chapter2 Basics of Laplace Transform | 22 |

Chapter3 Transfer Function and Impulse Response | 42 |

Chapter4 Block Diagram Representation | 68 |

Chapter5 Signal Flow Graph Representation | 137 |

Chapter6 Modeling of Control Systems | 205 |

Chapter7 Time Response Analysis of Control Systems | 311 |

Underdamped Case | 337 |

Summary | 423 |

University Questions | 432 |

Chapter8 Stability Analysis of Control Systems | 438 |

Chapter9 Root Locus | 483 |

Chapter10 Basics of Frequency Domain Analysis | 572 |

Chapter11 Stability Analysis Using Bode Plots | 598 |

Chapter12 Polar and Nyquist Plots | 691 |

AppendixA Miscellaneous Questions | 785 |

Solved Problems on Steady State Response | 347 |

Solved Problems on Transient Response | 354 |

XV | 789 |

### Other editions - View all

### Common terms and phrases

analogous Anticlockwise asymptotes Bode plot branches breakaway point characteristic equation closed loop poles closed loop system closed loop transfer constant copc damping ratio dB/dec Determine displacement electrical network encirclements error coefficients factor forward path frequency response friction G(jco G(jco)H(jco gain margin H(jco half of s-plane hence imaginary axis Laplace transform loop transfer function magnitude condition magnitude plot Mason's gain formula mechanical system negative real axis node nontouching Nyquist path Nyquist plot Nyquist stability criterion obtained open loop poles open loop transfer oscillations output parameters phase angle phase margin polar plot pole at origin rad/sec right half root locus Routh's array second order system Section shift signal flow graph simple pole stability steady state error step input summing point system is stable system shown take off point Taking Laplace torque unit step input unity feedback system unstable voltage zero