Page 275 - Hybrid-Renewable Energy Systems in Microgrids

252 Index

N environmental benefits, 39
National Renewable Energy Laboratory full-phase installation, 1
(NREL), 204, 234 grid-connected systems, 219
Net present cost (NPC), 203 HOMER
analysis, 210
O economic analysis, 210
input variables, 210
Optimization, 42. See also Renewable energy photovoltaic system component
systems (RES) analysis, 209
analytical methods, 233 PV array, 209
computing tool, 238 sensitivity analysis, 209
graphic construction technique, 235 HRES
hybrid methods, 238 characteristics of, 222
iterative method, 234 control of, 240
multi-objective design, 236 feasibility study, 224
power reliability analysis, 231 optimum design, 222
probabilistic methods, 233 hybrid, 2
system cost analysis, 232
integration of, 1
modelling, selected cities, 211
P
optimization
Particle swarm optimization (PSO), 235 analytical methods, 233
Peukrt’s law, 150 computing tool, 238
Photo voltaic (PV) system, 1, 97, 227 graphic construction technique, 235
central inverter, 77 hybrid methods, 238
leakage current, 92 iterative method, 234
module-integrated inverter, 77 multi-objective design, 236
multilevel inverter topology power reliability analysis, 231
components, 87, 88 probabilistic methods, 233
evolution, 88 system cost analysis, 232
reversing voltage, 81 rapid growth, 219
switching sequences, 84, 85 single source of, 203
multi-string inverters, 78 solar PV, 46, 51
string inverter, 77 solar radiation, 212
Power conversion system (PCS), 4 standalone systems, 220
Power quality. See also Smart grid telecom load, 211
advantages, 195 wind speed, 212
DSM, 199
harmonic distortion, 199 S
rapid voltage variations, 198 Sensitivity analysis, 209
short duration under voltages, 199 comparative analysis, 181
slow voltage variations, 198 drive train, 176
switching transients, 199 generator parameters, 178
Programmable logical controller (PLC), 241 transmission line parameters, 179
Pulse-width modulation (PWM), 77 Series dynamic braking resistor
(SDBR), 165
R capacitor bank modeling, 171
Real Time Digital Simulation (RTDS), 136 induction generator modeling, 169
Renewable energy systems (RES) sensitivity analysis
battery model, 47 comparative analysis, 181
economical benefits, 39 drive train, 176