Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL

We used genetic algorithm to solve an optimal load flow. The chromosome contains only encoding normalized system incremental cost. Therefore, the total number of bits of chromosome is entirely independent of number of units. In the first case, the transmission line losses are calculated by Newton-Raphson’s method and maintained constant (PL = 15.94 MW). In the second case, the transmission line losses are considered as linear function of real generated power. The coefficients were calculated by the Gauss-Seidel’s method (PL = 0.0189 Pg1 + 0.0924 Pg2). This method is applied to the west Algerian power network and the results are judged satisfactory compared with other results founded by classical methods