High-voltage Cable Arrangement Optimization Design Method

Designing a high-voltage cable layout is complex and requires numerous calculations. Manual calculation is inefficient and susceptible to inaccuracy. Therefore, this paper proposes a method for determining the ideal high-voltage cable layout using an optimal design. First, analyze the impact of high-voltage cable layout on its important indicators during operation and determine the optimization objective; Secondly, with the analytical hierarchy approach, determine the importance of key operational indicators from four areas that have an impact on the power grid and high-voltage cables; once more, the optimization objective is normalized and weighted and summed to establish an optimization model combined with constraints, and the high-voltage cable layout method is obtained after optimization using the gray wolf optimization algorithm; finally, the cable line layout method with a length of 23.5 km in the tunnel was optimally designed based on this method. The optimization results demonstrated that this method can be used to optimize the layout of high-voltage cables may significantly enhance the cable ampacity, the symmetry of line characteristics, as well as the line's reactive power loss, as well as give strong support for the efficient and rational layout of high-voltage cables.