# Interconnected Power System - [2170901]

#### Teaching Scheme

 Theory Tutorial Practical Total 3 0 2 5

#### Examination Scheme

 Theory Examination Practical Examination Total ESE (E) PA (M) ESE Viva (V) PA (I) 70 30 30 20 150

ESE = End Semester Examination, PA = Progressive Assessment

#### Introduction:

Concept of Interconnection, Hierarchical Grid arrangements, Cascade Tripping, Islanding, Load dispatch centre, Power Generation Scenario in Gujarat and India

#### Power system matrices

Brief explanation of Graph theory, Primitive Network, Ybus formation methods, Singular transformation method, Direct method, Removal of elements, Algorithm for formation of Zbus matrix addition of branch and link, Numericals [4]

Introduction, Static Load Flow Equations, Bus Classifications, Approximate method, Gauss-Seidel Method, Newton Raphson Method, Fast Decoupled Load Flow Method, Comparison of different methods, Numericals[1]

#### Economic operation of power systems

Generator operating cost, Economic operation of generators within thermal plant, Optimal operation by co-ordination equation, Penalty factor, Derivation of transmission loss formula (Kron’s method), Unit commitment problem solution by dynamic programming, Numericals[5]

#### Frequency and voltage control methods

Speed governing mechanism, Mathematical modeling, Adjustment of Governor characteristics, Single area control, Flat frequency control, Selective frequency control, Tie line load bias control, Methods of voltage control, Numericals[3]

#### Power system stability

Introduction, Mechanics of angular motion, The swing Education,transfer reactance, power relations, Steady state stability, Synchronizing power coefficient, Analysis of steady state stability, steady state stability with automatic voltage regulators, concept of shunt fault, transfer reactance during fault, reduction of power system to one machine connected to infinite bus, Transient stability, simplified transient generator model, The equal area stability criterion, solution of swing equation, Numericals