Research Article

Improved Solutions for the Optimal Coordination of DOCRs Using Firefly Algorithm

Table 4

Comparison of the best values obtained for IEEE 8-bus systems [3].

RelaysEFODEPSOBHEMBBOHSFA
NumberTDS (A)TDS (A)TDS (A)TDS (A)TDS (A)TDS (A)TDS (A)TDS (A)

10.197 237.11 0.074 480.00 0.077 480.00 0.290 228.31 0.430163.31 0.164 335.22 0.251 241.570.0501480.00
2 0.348293.32 0.248 468.14 0.050 120.00 0.544 240.79 0.635 303.26 0.449 241.13 0.412 385.670.050468.36
30.285190.790.209253.800.271104.360.475173.520.622 209.590.312277.860.434146.580.053104.36
40.212120.01 0.079 480.00 0.110 318.24 0.295 269.15 0.631 149.17 0.311 120.14 0.199 293.480.050 150.64
50.076235.93 0.050 284.540.050 297.610.208 192.64 0.306 147.02 0.200 125.73 0.156 200.000.050125
60.329193.400.154462.12 0.309120.000.420203.050.608216.38 0.386 120.130.371228.300.050230.08
70.273283.04 0.230 318.07 0.320 320.00 0.448 196.24 0.566 209.12 0.430 156.06 0.450 208.130.050156.65
80.303237.31 0.151432.90 0.219 480.000.363288.150.546272.140.286251.25 0.425285.950.0817251.48
90.098207.890.050 320.00 0.050278.300.237 127.96 0.348 116.53 0.22698.89 0.179177.360.050187.36
10 0.174225.250.050480.00 0.050268.710.264257.610.663 146.320.198301.970.246215.11 0.050220.30
110.263250.910.226121.510.200120.000.367 249.57 0.515 363.460.290300.120.348 254.75 0.050255.30
120.343319.590.221472.950.345127.16 0.496 237.60 0.723240.59 0.529 138.33 0.432404.570.0817416.00
130.202 233.390.070480.000.152 451.17 0.278239.78 0.488141.82 0.162334.180.285 206.760.0534230.56
140.311 230.260.217 320.000.309154.820.397 216.330.455 260.14 0.328263.290.428 223.330.058230.34
F7.611 6.654 10.421 11.401 15.9137.54711.7606.6463