Electrical Power Systems

methods for voltage control 115
multi-machine system 279
Multiphase Systems 13
mutual geometric mean distance 27
national grid 3
negative sequence 227
Newton-Raphson method 169
nodal admittance 147
nominal p model 126
non-sinusoidal voltage drop by corona 357
Noncoincident Demand 4
nonsalient pole synchronous machine 83
normal swinging in wind 402
one conductor open 256
open conductor fault 250
optimal loading of generators 410
optimal scheduling 419
other base values 99
parabolic equations 375
parallel conductors 20
parallel connection of sequence networks 256
patchy glow 357
peak amplitude 141
penalty factor 418
per-unit impedance of a transformer 102
per-unit system 96
per-unit values 99
performance of transmission lines 124
permeability 20
phase constant 128
Plant actor 5
polar form 171
positive sequence 227
Post fault generator current 213
Potential difference 62
potential difference 53
power factor 4
power injection 147
power supply network 1
prefault bus voltages 213
primary and secondary 1
primary speed control 321
prime mover time constant 308
projected area per meter length of the conductor
390
propagation constant 128
proportional controller 310
quadratic approximation 407
quadrature axis reactance 86
Index 469
R.M.S. value of voltage gradient 358
radius of a fictious conductor 23
rated capacity of area-1 and area-2 325
rated momentary current 190
rated symmetrical interrupting current 190
Reactive power loss 158
real and reactive power losses 144
real power loss 158
reduced order transfer function model 313
reflected wave 141
regional grid 3
Regulating transformers 120
regulation characteristic 329
relative merits between shunt and series capacitors
122
reserve generation capacity 3
resistance 18
restructured power system 339
resultant mmf 81
rotating frame of reference 279
Rotor kinetic energy 276
roughness or irregularity factor 363
ruling span or equivalent span 387
sag and tension 373
sag or deflection of the conductor 378
salient pole synchronous machine 86
sample system data 335
sampling time 336
scheduled power flow 342
selecting the most desirable and practical route
393
self and mutual inductances 25
self geometric mean distance 27
self-admittance or driving point admittance 149
Series capacitors 122
series connection of sequence networks 251
Shannon’s sampling theorem 336
short circuit conditions 90
short circuit study for large power system networks
211
short-line 125
shunt capacitors 122
Shunt aults 250
simple expression for loss formula 436
single impedance loading 236
single phase line 55
single-line diagram 96
Slack bus 147
small perturbation transfer function block diagram
326
solution has converged 156