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https://doi.org/10.1016/j.segan.2022.100944
Copy DOIPublication Date: Oct 10, 2022 | |
Citations: 17 |
Implementation of sectionalizing switches accounts as one of the necessities of distribution system reliability. These devices are generally used in two types, manual and remote-controlled. They act in the restoration process to reduce the amount of lost load during the faulty mode of the network. This paper investigates a novel framework of optimal sectionalizing switch placement that concerns two essential requirements. First is a general mixed-integer linear programming (MILP) model to correctly capture the joint switching mechanism. A joint switching mechanism stands for coordinating the manual and remote-controlled switching operations in direction with reliability enhancement. The second is the adjacent substations’ free capacity during the load transfer since this process must not overload the adjacent substation. Considering these two important points, a new MILP model of optimal joint sectionalizing switch placement (JSSP) is introduced in this paper. The proposed JSSP is a long-term planning problem that concerns the role of adjacent substations in load restoration and network reliability enhancement. Notwithstanding the reliability dependency on the number, type, and location of sectionalizing switches, the load growth can expose the adjacent substations to overloading. This overloading can restrict the restoration corresponding to the load transfer process. The proposed model is validated in two test distribution systems that are large enough and appropriate to concern the load transfer capability problem.
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