Research Article

Trust-Region Method for Load Flow Solution of Three-Phase Unbalanced Electric Power Distribution System

Table 4

Line impedance of 25-bus network.

Conductor typeImpedance (ohm/mile)
abc

1a0.3686 + j0.68520.0169 + j0.15150.0155 + j0.1098
b0.0169 + j0.15150.3757 + j0.67150.0188 + j0.2072
c0.0155 + j0.10980.0188 + j0.20720.3723 + j0.6783

2a0.9775 + j0.87170.0167 + j0.16970.0152 + j0.1264
b0.0167 + j0.16970.9844 + j0.86540.0186 + j0.2275
c0.0152 + j0.12640.0186 + j0.22750.9810 + j0.8648

3a1.9280 + j1.41940.0161 + j0.11830.0161 + j0.1183
b0.0161 + j0.11831.9308 + j1.42150.0161 + j0.1183
c0.0161 + j0.11830.0161 + j0.11831.9337 + j1.4236