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        1 - A Single Stage Dynamic Transmission Expansion Planning Model in the Competitive market
        Hamid Gorjipour مجتبی Najafi Naghi Moaddabi Pirkolahchahi
        In the competitive market the planners can include market behavior in the Transmission Expansion planning (TEP) to manage the congestion. Before the expansion planning, the value of local marginal pricing (LMP) of each bus can be calculated using the optimal power flow. More
        In the competitive market the planners can include market behavior in the Transmission Expansion planning (TEP) to manage the congestion. Before the expansion planning, the value of local marginal pricing (LMP) of each bus can be calculated using the optimal power flow. Then based on them the TEP is performed. But this model does not consider the dependency of the LMP to the network structure changes, because by changing the topology the cost and process of delivering power to a bus can be changed. So, the LMP is not constant during the TEP and must be included in the model dynamically. In this paper the dynamic dependency of LMP to the transmission system topology variations and contingencies is modelled as a single stage mixed-integer linear programming and solved with integration of the YALMIP and MOSEK software. The proposed model is more realistic; however, it takes more computation time. The single stage means the simultaneous calculation of LMPs and expansion planning in the model. The model has been applied to Garver 6-bus and the IEEE 24-bus network. The effect of interest rate, the load to generation capacity factor and load growth rate on the TEP model are analysed. The contingency-based model considers the contingency of line outages and presents a robust and reliable solution that guarantee the system security assessment during the set of predefined contingencies. It provides more expensive but more flexible solutions. Manuscript profile
      • Open Access Article

        2 - Transmission expansion planning based on merchandizing surplus of transmission lines
        Iman Ehsani Alireza Soofiabadi