Page 13 - Modern Control of DC-Based Power Systems

xii List of Figures

Figure 5.51 ISPS V bus AdaptBS for ideal CPL Step 30.9 - 53.4 MW 185
Figure 5.52 ISPS I L1=L2=L3 AdaptBS for ideal CPL 186
and 30.9 - 53.4 MW
Figure 5.53 Lower LFT structure 188
Figure 5.54 Generalized plant structure 192
Figure 5.55 Overview of the mixed sensitivity H N control design 194
Figure 5.56 Sensitivity function and the corresponding weighting 195
function W e
Figure 5.57 Complementarity sensitivity function and the corresponding 195
weighting function W T
Figure 5.58 Noise sensitivity function and the corresponding weighting 196
function W u
Figure 5.59 Loop transfer function 196
Figure 5.60 Voltage H N cascaded Ideal CPL Step 10.3 - 197
17.8 MW
Figure 5.61 Current H N cascaded Ideal CPL Step 10.3 - 197
17.8 MW
Figure 5.62 ISPS V bus H N for ideal CPL Step 30.9 - 53.4 MW 198
Figure 5.63 I L15L25L3 H N for ideal CPL and 30.9 - 53.4 MW 198
Figure 5.64 Impact of measurement noise on V bus with H N control 199
Figure 5.65 Buck converter with resistive load. 204
Figure 5.66 The trajectories of the two areas converges to the switching 205
line
Figure 5.67 Voltage virtual distribution sliding mode cascaded Ideal 208
CPL Step 10.3 - 17.8 MW
Figure 5.68 Current virtual distribution sliding mode cascaded Ideal 208
CPL Step 10.3 - 17.8 MW
Figure 5.69 Phase plot virtual distribution sliding mode cascaded Ideal 209
CPL Step 10.3 - 17.8 MW
Figure 5.70 ISPS V bus virtual distribution sliding mode for ideal 209
CPL Step 30.9 - 53.4 MW
Figure 5.71 ISPS I L1=L2=L3 virtual distribution sliding mode 210
for ideal CPL and 30.9- 53.4 MW
Figure 6.1 Voltage—ideal CPL—Step 10.3 - 17.8 MW 221
Figure 6.2 Current—ideal CPL—Step 10.3 - 17.8 MW 221
Figure 6.3 LQG estimate and current—Step 10.3 - 17.8 MW 222
Figure 6.4 Adaptive backstepping estimates and current—Step 10.3 - 222
17.8 MW
Figure 6.5 Voltage—PI CPL—Step 10.3 - 17.8 MW 223
Figure 6.6 Voltage and current—PI CPL—Step 10.3 - 17.8 MW 223
Figure 6.7 Voltage—PID CPL—Step 10.3 - 17.8 MW 224
Figure 6.8 Current—PID CPL—Step 10.3 - 17.8 MW 225
Figure 6.9 Equivalent circuit of the shipboard power system under 230
droop control
Figure 6.10 ISPS V bus for ideal CPL—Step 30.9 - 53.4 MW 232