Comprehensive Evaluation of Power Grid Security and Benefit Based on BWM Entropy Weight TOPSIS Method

Abstract

With the gradual integration of various forms of energy, the energy utilization rate has increased and it also brings great challenges to grid evaluation. Therefore, the use of scientific and reasonable comprehensive evaluation method can provide effective help for the development of power grid. In order to solve the problem that the traditional single evaluation method is used in the comprehensive evaluation of power grid, resulting in too strong subjective awareness and lack of evaluation of the objective original data itself and uneven weight distribution, this paper proposes that Nash equilibrium solution is introduced into BWM entropy weight as the goal of coordination and optimization. In the method, the comprehensive weight is calculated, and the distance between the selected scheme and the ideal scheme is sorted by TOPSIS. This method combines all the information of objective data to balance the subjective and objective weight. Through this method, 16 indicators of safety and benefit in 25 provinces in 2017 of State Grid Economic Research Institute are analyzed, and the feasibility of this method is verified.

Mining Method Optimization of Gently Inclined and Soft Broken Complex Ore Body Based on AHP and TOPSIS: Taking Miao-Ling Gold Mine of China as an Example

“…This paper assumes that if the surrounding rock is excluding gold (gold grade is zero), then every one ton of ore lost in the process of mining, the enterprise economic losses on the numerical equivalent of selecting one profitable ton of ore, mixed with the processing fee for one ton of ore, is equal to one of the selecting ore comprehensive cost; obviously, the two rates index is based on the total cost index, which is filled in the mining work on mining efficiency indicators. For most precious metal mines with low ore grade, the index of dilution rate is more important than the index of recovery rate [27].…”

Study on Comprehensive Efficiency Evaluation of Rural Power Grid under Rural Revitalization Strategy Considering Regional Differences

“…In terms of evaluation methods, related scholars mainly use multi-attribute decision-making [14,15], financial analysis [16], techno-economic analysis [17], and optimization theory [18,19] to study the efficiency and effectiveness of power grid projects. Among them, multi-attribute decision-making methods can reflect the efficiency level of power grid engineering more comprehensively and thus have received attention from scholars, such as fuzzy comprehensive evaluation [20], object meta-topology [21], TOPSIS [22], ELECTRE [23], MARCOS [24], MABAC [25], AHP [26] and VIKOR [27]. Multiattribute decision-making also has disadvantages: the index system mainly focuses on the project's output, such as economic and social output.…”

TOPSIS-Based Algorithm for Resilience Indices Construction and the Evaluation of an Electrical Power Transmission Network

“…Finally, to avoid the deficiency of the single weighting method, the subjective weight of the index is obtained by using the priority comparison method, and the CRITIC (Criteria Importance Through Intercriteria Correlation) obtains the objective weight of the index [19], and then the comprehensive weight is obtained by combining the two. On this basis, the TOPSIS is used to comprehensively evaluate the resilience of the main grid [20,21].…”