Page 303 - Modern Control of DC-Based Power Systems

262 Index

Constant power load (CPL) model augmented Kalman filter, 159 162
(Continued) LQG controller, 156 159
with DC bus control, 7 9 observer-based control, procedure of,
with load side control, 5 7 148 154
by passive components, 4 5 augmented Kalman filter, 152 153
connection to DC bus, 1 4 Kalman filter, 150 152
electrical system containing, 3f linear quadratic regulator (LQR),
voltage stabilization of, 1, 234 235 148 150
Continuous Conduction Mode (CCM), shaping filter, 153 154
18, 113 114, 129 130 simulation results, 164 165
Continuous-time system, 255 cascaded system, 164 165
Continuous-time variables, 256 257 shipboard power system, 165
Control algorithm, 256, 258 259 Decentralized formulation, 243 244
Control bandwidth, 17 18, 36 Decentralized virtual disturbances-based
Control classification, 106f controllers, 245 246, 250
Control Lyapunov Function (CLF), 165, Democratic current sharing, 233
168 169 Desired closed-loop discrete poles, 258
Control theory fundamentals, 83 Digital controllers, 253 255
Control-affine systems, 114 Digital simulator, 254
Controllability, 90 91 Digital to analog (D/A) converter, 74, 256
Controllability matrix, 93 Direct Current (DC) system, xxvii
Convergence speed, 131 ISPSs, xxviii
Converter disconnection bus voltage Direct substitution method, 92
LQG, 261f Discontinuous conduction mode (DCM),
LSF, 261f 223
Crossover frequency, 22, 36, 57 58 Discrete open-loop system equations, 258
Current mode control with PI controllers Discrete-time system, 256 257
modeling and design procedure of, Discretization, 253, 255 258, 255f
37 41 Distributed Generators, 253
Droop, 96 103
D Droop coefficients, 101 103, 102f
Droop control, 100f, 101f, 233 234
Data acquisition (DAQ), 71
Droop steepness characteristics, 98f,99f
DC bus, 223
Droop-characteristic, 97
constant power load connected to, 1 4
Droop PI outer control loop, 237
DC bus control, compensating CPLs with,
Duty cycle, 7 8, 15 16, 18
7 9
of adaptive backstepping, 244, 245f, 250
DC DC conversion stage, 107
of control methods, 244, 245f
DC DC converter, 7 9, 18, 105 107
injecting pseudo-random binary
constant power load fed by, 8f
signal to, 70
sliding mode control (SMC), 209 214
DC DC voltage regulator system, 16f
Decentralized controls, 147 165, 224, E
240 242 Electrical power system, 253 254
application to centralized controlled Electrical system, containing nonlinear
MVDC system, 162 163 load, 1f
application to decentralized controlled Electromechanical generation system,
MVDC system, 154 162 108 109, 223