EE 1002 POWER SYSTEM DYNAMICS 3 0 0 100
AIM
To become familiar with the modelling of components and system for carrying out transient and dynamic stability analysis of large scale power system.
OBJECTIVES
i. To study detailed modeling of synchronous machine and its excitation and speed-governing controllers.
ii. To study transient stability simulation of multimachine power system.
iii. To study small signal stability analysis of a single-machine infinite bus system with excitation system and power system stabilizer.
1. INTRODUCTION 4
Concept and importance of stability in power system operation and design;
distinction between transient and dynamic stability; complexity of stability problem in large system: Need for reduced models; stability of interconnected systems.
2. MACHINE MODELLING 12
Park’s transformation; flux linkage equations, current space model, per unit conversion, normalizing the equations, equivalent circuit, flux linkage state space model, sub transient and transient inductances and time constants. Simplified models (one axis and constant flux linkage), steady state equations and phasor diagrams.
3. MACHINE CONTROLLERS 9
Exciter and voltage regulators, function of excitation systems, types of excitation systems, typical excitation system configuration, block diagram and state space representation of IEEE type 1 excitation system, saturation function, stabilizing circuit.
Function of speed governing systems, block diagram and state space representation of IEEE mechanical hydraulic governor and electrical hydraulic governors for hydro turbines and steam turbines.
4. TRANSIENT STABILITY 8
State equation for multimachine simulation with one axis model, transient stability simulation of multimachine power system with one axis machine model including excitation system and speed governing system using R-K method of fourth order (Gill’s technique), power system stabilizer.
5. DYNAMIC STABILITY 12
System response to small disturbances: Linear model of the unregulated synchronous machine and its modes of oscillation, regulated synchronous machine, distribution of power impact, linearization of the load equation for the one machine problem – Simplified linear model, effect of excitation on dynamic stability, approximate system representation; supplementary stabilizing signals, dynamic performance measure, small signal performance measures.
L = 45 Total = 45
TEXT BOOKS
1. P.M. Anderson and A.A.Fouad, ‘Power System Control and Stability’, Galgotia Publications, New Delhi, 2003.
2. P.Kundur, ‘Power System Stability and Control’, McGraw Hill Inc., USA, 1994.
REFERENCE BOOK
1. M.A.Pai and W.Sauer, ‘Power System Dynamics and Stability’, Pearson Education Asia, India, 2002.
AIM
To become familiar with the modelling of components and system for carrying out transient and dynamic stability analysis of large scale power system.
OBJECTIVES
i. To study detailed modeling of synchronous machine and its excitation and speed-governing controllers.
ii. To study transient stability simulation of multimachine power system.
iii. To study small signal stability analysis of a single-machine infinite bus system with excitation system and power system stabilizer.
1. INTRODUCTION 4
Concept and importance of stability in power system operation and design;
distinction between transient and dynamic stability; complexity of stability problem in large system: Need for reduced models; stability of interconnected systems.
2. MACHINE MODELLING 12
Park’s transformation; flux linkage equations, current space model, per unit conversion, normalizing the equations, equivalent circuit, flux linkage state space model, sub transient and transient inductances and time constants. Simplified models (one axis and constant flux linkage), steady state equations and phasor diagrams.
3. MACHINE CONTROLLERS 9
Exciter and voltage regulators, function of excitation systems, types of excitation systems, typical excitation system configuration, block diagram and state space representation of IEEE type 1 excitation system, saturation function, stabilizing circuit.
Function of speed governing systems, block diagram and state space representation of IEEE mechanical hydraulic governor and electrical hydraulic governors for hydro turbines and steam turbines.
4. TRANSIENT STABILITY 8
State equation for multimachine simulation with one axis model, transient stability simulation of multimachine power system with one axis machine model including excitation system and speed governing system using R-K method of fourth order (Gill’s technique), power system stabilizer.
5. DYNAMIC STABILITY 12
System response to small disturbances: Linear model of the unregulated synchronous machine and its modes of oscillation, regulated synchronous machine, distribution of power impact, linearization of the load equation for the one machine problem – Simplified linear model, effect of excitation on dynamic stability, approximate system representation; supplementary stabilizing signals, dynamic performance measure, small signal performance measures.
L = 45 Total = 45
TEXT BOOKS
1. P.M. Anderson and A.A.Fouad, ‘Power System Control and Stability’, Galgotia Publications, New Delhi, 2003.
2. P.Kundur, ‘Power System Stability and Control’, McGraw Hill Inc., USA, 1994.
REFERENCE BOOK
1. M.A.Pai and W.Sauer, ‘Power System Dynamics and Stability’, Pearson Education Asia, India, 2002.
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