6EC5 CONTROL SYSTEMS

  Units    Contents of the subjects
I
CONTROL SYSTEMS ANALYSIS AND COMPONENTS: Examples andapplication of open loop and close loop systems. Brief idea of multivariable controlsystem, Brief idea of Z-transform and digital control systems. Differential equations.Determination of transfer function by block diagram reduction technique & signal flow graph method.
II

TIME RESPONSE ANALYSIS OF FIRST ORDER & SECOND ORDER SYSTEMS: Transient response analysis. Steady state error & error constants. Dynamic error and dynamic error coefficient, Performance Indices.

III
FREQUENCY DOMAIN METHODS: Bode plot, Design specification in frequency domain and their co-relation with time domain.
IV
STABILITY OF THE SYSTEM: Absolute stability and relative stability. Routh’s stability criterion, Hurwitz criterion. Root locus method of analysis. Polar plots, Nyquist stability criterion. M and N loci, Nicholas charts.
V
STATE VARIABLE ANALYSIS: Concepts of state, state variable and state model. State models for linear continuous time systems. Brief idea of state variable analysis in discrete time domain. Transfer functions, Solution of state equation. Concepts of controllability & observabilitY
Text/References:
• Control System Engineering, S Palani, TMH
• Control Systems, Manjita Srivastava, Mahesh Srivastava, Smriti Bhatnagar, TMH
• Schaum's Outline Of Feedback And Control Systems, Allen Stubberud, Ivan Williams,
Joseph Distefano, TMH
• Control Systems: Principles & Design, M. Gopal, TMH
• Control Systems Engineering, S. K. Bhattacharya, Pearson
• Design Feedback Controk System, Stefani, Oxford
• Systems And Control, Zak, Oxford
• Automatic Control Systems, B. C. Kuo, Wiley
• Control Systems Engg., Norman S. Nise, Wiley
• Control System, N.K.Sinha, New Age
• Control System Engineering, J.Nagrath, New Age
• Control System, Ghosh, Pearson