scholarly journals Research on performance evaluation method of effective assets of power grid based on value engineering

2019 ◽  
Vol 118 ◽  
pp. 01056 ◽  
Author(s):  
Mianbin Wang ◽  
Xiaoxuan Niu ◽  
Lei An ◽  
Jinchao Li

The effective asset of power grid is an important basis for the development of power grid enterprises and government regulation. Based on the value and functional characteristics of power grid assets, this paper establishes an evaluation index system for effective asset function of power grids. The analytic hierarchy process and entropy weight method are used to calculate the subjective and objective weights of each functional index, and the subjective and objective weights are combined by the method of squared deviation. The combined weights of the indicators are combined with the value engineering evaluation model to calculate the effective asset value coefficient, which is taken as the effective asset performance value. Finally, the relevant data of a provincial power grid enterprise for 2014-2018 is used. The established model is validated and the calculation results show that the established optimal model is feasible.

2021 ◽  
Vol 252 ◽  
pp. 01058
Author(s):  
Shiyan Mei ◽  
Kai Hou ◽  
Ming Chen ◽  
Jinlan Hu ◽  
Chao Chen

Facing the current complex operation and management situation, power grid companies must improve the level of precision investment and improve the efficiency of project input and output. Based on the different goals of project investment, this paper uses comprehensive benefit evaluation methods to carry out micro-investment demand analysis from the project dimension, builds a quantitative evaluation index system for comprehensive benefits of power grid projects based on effectiveness contribution evaluation, and combines the analytic hierarchy process and entropy weight method to determine the index weights. Analyze the contribution degree of each project to the power grid after it is put into production through indicators, and realize the priority ranking of power grid investment projects according to the comprehensive benefit evaluation score of the project. The research results can provide reference and reference for improving the output efficiency of power grid investment projects.


2014 ◽  
Vol 618 ◽  
pp. 603-607 ◽  
Author(s):  
Zheng Yuan Jia ◽  
Bin He

Supplier management is an important part of supply chain management, combined with the feature of the power industry, the paper design supplier comprehensive evaluation system of power grid enterprises, and put forward comprehensive green degree into supplier evaluation index system to conform to the national grid company production requirements. Firstly, according to the index system, the analytic hierarchy process evaluation method to draw the initial weights, secondly, the modification of entropy weight method to reduce the subjective factor influence on the evaluation results by AHP , finally, an example is given to demonstrate the feasibility of the evaluation index system for the power grid enterprise, it aslo provides a theoretical basis for decision-makers during the vendor selection.


2021 ◽  
Author(s):  
Lei Guo ◽  
Xiufen ZHANG

Abstract Partial destructive disassembly (PDD) is essential for end-of-life products to improve their automatic disassembly efficiency and reduce disassembly cost. A feasibility evaluation of the PDD is the key step to evaluate whether the PDD can be implemented. However, it has not been studied previously to our knowledge. To deal with this problem, a multi-granularity feasibility evaluation method is proposed. A multi-granularity feasibility evaluation model of the PDD was constructed based on the complex product’s hierarchical structure, which not only described the evaluation indices from the product level to the component level but also presented methods and rules to quantify them. 1Thus, disassembly entropy was introduced into the target group’s coarse granularity evaluation. The feasibility of the fine-grained index of the PDD for the component layer was constructed based on the product’s failure characteristic. The fine-grained index was calculated by the fuzzy trigonometric function and its weighting was obtained based on the structure entropy weight method. Thus, the results of the evaluation were used as feedback to guide the PDD process. Finally, a Passat engine case study illustrates the feasibility and effectiveness of the method.


2014 ◽  
Vol 551 ◽  
pp. 722-726
Author(s):  
Xin Cao

In order to evaluate coaches, this paper established the model of comprehensive evaluation based on analytic hierarchy process (AHP). Firstly, I establish the hierarchical structure of the system; Secondly, for researching the influence of time line horizon in analysis, I divided coaches into several groups by their career time and calculated the weights of indicators of each group using entropy weight method; Finally, calculate the weight between the criteria layer and objective layer. Female coach data is difficult to find, so I select 100 college basketball male coach data. Put the data into model and get a score. The score showed the final result which can give us a sort of reasonable coach list. This model can reduce the influence of different time periods for evaluation of the coach.


2019 ◽  
Vol 136 ◽  
pp. 01030
Author(s):  
Xi Wang ◽  
Wei Wang ◽  
Hao Xu ◽  
Qiang Ye ◽  
Shi Chen ◽  
...  

In this paper, the Market-oriented Operations Strategy of CCHP are analysed, from the perspective of construction mode, operating mode and charging mode. On this basis, a three-dimensional indexes system is established, and combining the entropy weight method with Analytic Hierarchy Process as a comprehensive evaluation method to evaluate the different market-oriented strategies of CCHP. Finally, the empirical analysis of the commercial building in southwest China shows that the market-oriented strategy of CCHP can bring more benefits to market participants when it has high applicability and great practical value.


2017 ◽  
Vol 2017 ◽  
pp. 1-9
Author(s):  
Ke Yin

In order to improve the rationality and validity of the physical protection system effectiveness evaluation in prison, this paper discusses the main factors that affect the system performance in the prison security system construction process and explores the key points in evaluating the effectiveness of searching system. The author of this paper has constructed an evaluation index system that accurately reflects the physical protection system in prison and comes up with an evaluation model and algorithm based on the gray level analysis by verifying the rationality of effectiveness evaluation model of prison physical protection system and the validity of the evaluation method.


2013 ◽  
Vol 423-426 ◽  
pp. 2930-2933
Author(s):  
Cong Jun Rao

The level and status of disciplines are the important indexes in universities. The evaluation of multiple disciplines plays an important role in the disciplines development. This paper mainly studied the problem of disciplines evaluation in higher education. Firstly, it established the evaluation index system with eight first-grade evaluation indexes, i.e., discipline construction, teaching award, research funding, the scientific research achievement award, team construction, scientific research, talent training, and initial investment, and then used the method of Analytic Hierarchy Process (AHP) to solve the weight of each index. Thirdly, it established a disciplinary evaluation model based on fuzzy comprehensive evaluation method, and analyzed the rationality of the model. The study in this paper provides a new way for the evaluation of university disciplines.


2019 ◽  
Vol 9 (18) ◽  
pp. 3843 ◽  
Author(s):  
Zhao ◽  
Wang

The comprehensive evaluation of AC/DC hybrid microgrid planning can provide reference for the planning of AC/DC hybrid microgrids. This is conducive to the realization of reasonable and effective microgrid planning. Aiming at comprehensive evaluation of AC/DC hybrid microgrids, this paper establishes an evaluation index system for planning of AC/DC hybrid microgrids. This paper combines the subjective evaluation method with the objective evaluation method, and proposes a comprehensive evaluation method of AC/DC hybrid microgrid planning based on analytic hierarchy process and the entropy weight method. Finally, the validity and rationality of the evaluation method are verified by an example.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Yang Li ◽  
Yahui Li ◽  
Zijiao Han ◽  
Guoqing Li ◽  
Kai Gao ◽  
...  

Studying optimization and decision for opening electromagnetic loop networks plays an important role in planning and operation of power grids. First, the basic principle of fuzzy analytic hierarchy process (FAHP) is introduced, and then an improved FAHP-based scheme evaluation method is proposed for decoupling electromagnetic loop networks based on a set of indicators reflecting the performance of the candidate schemes. The proposed method combines the advantages of analytic hierarchy process (AHP) and fuzzy comprehensive evaluation. On the one hand, AHP effectively combines qualitative and quantitative analysis to ensure the rationality of the evaluation model; on the other hand, the judgment matrix and qualitative indicators are expressed with trapezoidal fuzzy numbers to make decision-making more realistic. The effectiveness of the proposed method is validated by the application results on the real power system of Liaoning province of China.


2020 ◽  
Vol 213 ◽  
pp. 03019
Author(s):  
Junqing Wang ◽  
Qinggui Cao ◽  
Xin Mi ◽  
Dan Li

To evaluate the safety performance of bolt support scientifically, the factors affecting bolt support are systematically analyzed, the comprehensive evaluation index system is established from four aspects: support parameters, quality of bolt and fittings, construction management and monitoring level, and the safety evaluation model of bolt support is constructed; the AHP and entropy weight method are combined to determine the weight of each index, and the safety evaluation system of bolt support based on AHPentropy weight method is established and its application program is developed. The safety evaluation method and application program proposed in this paper are applied to the safety evaluation of bolt support in a coal mine in Shanxi Province, and the results are in agreement with the actual situation. This article studies the correlation.


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