Power System Dynamics and StabilityAs the demand for electrical power increases, power systems are being operated closer to their stability limits than ever before. This text focuses on explaining and analysing the dynamic performance of such systems which is important for both system operation and planning. Placing emphasis on understanding the underlying physical principles, the book opens with an exploration of basic concepts using simple mathematical models. Building on these firm foundations the authors proceed to more complex models and algorithms. Features include: * Progressive approach from simplicity to complexity. * Detailed description of slow and fast dynamics. * Examination of the influence of automatic control on power system dynamics. * Stability enhancement including the use of PSS and Facts. * Advanced models and algorithms for power system stability analysis. Senior undergraduate, postgraduate and research students studying power systems will appreciate the authors' accessible approach. Also for electric utility engineers, this valuable resource examines power system dynamics and stability from both a mathematical and engineering viewpoint. 
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Contents
Preface  xiii 
Introduction  1 
Power System Components  5 
The Power System in the SteadyState  43 
Electromagnetic Phenomena  93 
Electromechanical Dynamics Small Disturbances  141 
Electromechanical Dynamics Large Disturbances  183 
Voltage Stability  235 
Frequency Variations  259 
Stability Enhancement  291 
Advanced Power System Modelling  323 
Power System Model Reduction Equivalents  379 
Steadystate Stability of Multimachine System  395 
Power System Dynamic Simulation  411 
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Power system dynamics and stability Jan Machowski,Janusz Bialek,James Richard Bumby Snippet view  1997 
Common terms and phrases
admittance airgap armature armature flux armature reaction assumed axis bangbang control busbar calculated capacitor coefficient constant corresponding daxis damper winding dc component deceleration area defined depends disturbance effect eigenvalues electrical energy equal equilibrium point equivalent circuit excitation fault current field current field winding flow formulae frequency function gives governor impedance increase inductance induction motor infinite busbar Lyapunov function matrix mechanical power Newton's method operating oscillations parameters phase phasor phasor diagram power demand power swings power system dynamics powerangle characteristic prefault reactance reactive power real power reference frame regulator relay resulting rotating rotor angle rotor swings roundrotor saliency shaft shortcircuit shown in Figure shows shunt element signal speed deviation stationary point stator steam steam turbine subtransient synchronising synchronous system dynamics terminal voltage threephase thyristor tieline torque trajectory transformer transient emf transient stability transmission line turbine unit valves vector voltage regulator whilst zero
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Page 452  Adamiak."A new measurement technique for tracking voltage phasors, local system frequency, and rate of change of frequency, "IEEE Trans, on Power Apparatus and Systems, Vol.