Optymalizacja rojowa nastaw przesuwników fazowych w systemie elektroenergetycznym

W artykule przedstawiono zastosowanie algorytmu rojowego PSO do optymalizacji nastaw grupy przesuwników fazowych w systemie elektroenergetycznym. Jako kryterium optymalizacji zastosowano minimalizację strat mocy czynnej w sieci testowej IEEE 118. Przeanalizowano wpływ maksymalnej dozwolonej prędkości cząstek na efektywność algorytmu optymalizacji. Wyniki badań pokazują ważność tego parametru.

In response to the growing problem of unscheduled flows, a larger and larger number of transmission system operators in Europe equip their systems with phase shifting transformers (PSTs). PSTs are special transformers which installed in a transmission line enable regulation of the voltage phase angle and thereby change of the active power flow in the line. However, the use of several PSTs installed geographically close to each other must be coordinated in order to efficiently use those devices and avoid their adverse interactions. The coordination of a group of such devices leads to a multidimensional optimization problem. In this paper, the coordination problem was solved by optimization of settings of all analyzed PSTs, based on the swarm algorithm. This approach was examined and tested on an IEEE 118-bus test system. The minimization of active power losses in this system was used as the optimization criterion. The impact of maximum allowed velocity of particles on the effectiveness of the optimization algorithm was analyzed. The result shows that the improved effectiveness of the proposed approach can be obtained by careful selection of this parameter.