Reconfiguration of the over distribution and transmission of Khorasan based on contingency ranking, transient stability, reliability indices, short circuit and loss

The present research is pioneering in reconfiguring a transmission network while taking into account the contingency ranking, transient stability, reliability, short circuit and loss. The existing algorithms have so far been used to reconfigure distribution networks and not yet used for the reconfiguration of over distribution and transmission networks with many closed loops. Thus, the present research aimed to use the graph algorithm for the transmission network. Here, we used reliable data from Khorasan network for three modes: low-load, medium-load and peak-mode. Based on the suggested algorithm, all meshes, simple and hybrid loops of multiple voltages were examined in Khorasan network at three levels, 63, 132 and 400 kv and three modes, low, medium and peak load. At the end, all estimations showed that open loops in the 63 kv network and closed loops in the 132 and 400 kv networks are the best operation modes in Khorasan network.