EC8391 CONTROL SYSTEMS ENGINEERING Lecture Notes Syllabus
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EC8391 CONTROL SYSTEMS ENGINEERING
UNIT I SYSTEMS COMPONENTS AND THEIR REPRESENTATION
Control System: Terminology and Basic Structure-Feed forward
and Feedback control heoryElectrical and Mechanical Transfer Function Models-Block diagram
Models-Signal flow graphs
models-DC and AC servo Systems-Synchronous -Multivariable
control system
UNIT II TIME RESPONSE ANALYSIS
Transient response-steady state response-Measures of
performance of the standard first order and second order system-effect on an additional zero and an
additional pole-steady error constant and system- type number-PID control-Analytical design for
PD, PI,PID control systems
UNIT III FREQUENCY RESPONSE AND SYSTEM ANALYSIS
Closed loop frequency response-Performance specification in
frequency domain-Frequency response of standard second order system- Bode Plot - Polar
Plot- Nyquist plots-Design of compensators using Bode plots-Cascade lead
compensation-Cascade lag compensation-Cascade lag-lead compensation
UNIT IV CONCEPTS OF STABILITY ANALYSIS
Concept of stability-Bounded - Input Bounded - Output
stability-Routh stability criterion-Relative
stability-Root locus concept-Guidelines for sketching root
locus-Nyquist stability criterion.
UNIT V CONTROL SYSTEM ANALYSIS USING STATE VARIABLE METHODS
State variable representation-Conversion of state variable
models to transfer functions-Conversion
of transfer functions to state variable models-Solution of
state equations-Concepts of Controllability and Observability-Stability of linear
systems-Equivalence between transfer function and state variable representations-State variable analysis
of digital control system-Digital control design using state feedback.
TEXT BOOK:
1. M.Gopal, “Control System – Principles and Design”, Tata
McGraw Hill, 4th Edition, 2012.
REFERENCES:
1. J.Nagrath and M.Gopal, “Control System Engineering”, New
Age International Publishers, 5 th Edition, 2007.
2. K. Ogata, „Modern Control Engineering‟, 5th edition, PHI,
2012.
3. S.K.Bhattacharya, Control System Engineering, 3rd
Edition, Pearson, 2013.
4. Benjamin.C.Kuo, “Automatic control systems”, Prentice
Hall of India, 7th Edition,1995.
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