Comprehensive Evaluation Method of Energy-saving Effect for Frequency Conversion System Based on Total Harmonic Components

2021 ◽  
Author(s):  
Cao Ying ◽  
Li Hui ◽  
Xu Xiu-fen ◽  
Ge Yong-guang
Keyword(s):  
Energy Saving ◽  
Frequency Conversion ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Comprehensive Evaluation Method ◽  
Conversion System ◽  
Harmonic Components ◽  
Saving Effect

With the development and application of frequency conversion technology, the types of frequency conversion equipment are becoming more and more diverse, and the corresponding energy efficiency testing and evaluation methods are different, which leads to inconsistencies in the selection of equipment and the operation analysis and evaluation of the frequency conversion system. It is urgent to find an effective solution. By analyzing the problems of the current energy-saving test and evaluation methods of the frequency conversion system, the energy-saving evaluation index system and calculation method based on the total harmonic components are proposed. Establish a harmonic evaluation index system covering 9 indicators. On this basis, 6 core harmonic indicators are selected, and the comprehensive harmonic influence coefficient and weight matrix are introduced to establish a comprehensive evaluation method for energy-saving effects based on harmonic total components and weighted matrix model. On this basis, 15 different working conditions of the energy-saving test and analysis evaluation experiments for of frequency conversion system have been carried out. The results show that the total harmonic components analysis method proposed in this paper can reflect the energy efficiency level of the frequency conversion system and its equipments more realistically on the premise of meeting the analysis and actual operation requirements on site. At the same time, the established comprehensive evaluation method of energy saving effect can comprehensively and reasonably analyze the impact of harmonics on the performance of the frequency conversion system. In addition, it provides theoretical guidance for reasonably determining the optimal operating conditions of the system and equipment, and taking corresponding harmonic prevention measures to effectively improve the quality of power transmission and the actual energy-saving effects of frequency conversion technology.

Study on the Comprehensive Assessment of Controlling Efficiency of Engineering Project Based on Matter-Element and GAHP Model

2014 ◽  
Vol 638-640 ◽  
pp. 2446-2449 ◽  
Author(s):  
Bo Liu ◽  
Ju Qin Shen ◽  
Gao Yan Xu ◽  
Liang Tang ◽  
Zi Lin Xu ◽  
...  
Keyword(s):  
Analytical Method ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Mathematic Model ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Engineering Project ◽  
Professional Qualification ◽  
Comprehensive Evaluation Method

With the aim to improve the controlling efficiency of engineering project, this essay probes into the comprehensive evaluation of controlling efficiency of engineering project and put forward scientific comprehensive evaluation method to provide support to reasonable comprehensive evaluation of controlling efficiency of engineering project. Complete comprehensive evaluation index system of controlling efficiency of engineering project is constructed from three aspects, i.e. implementation efficiency of construction objective, external coordination efficiency and professional qualification enhancement efficiency; based on matter-element analytical method, mathematic model that could evaluate controlling efficiency of engineering project comprehensively is constructed.

scholarly journals Research on Comprehensive Evaluation Method of Distribution Automation Equipment Testing Results Based on Analytic Hierarchy Process and CRITIC Method

2021 ◽  
Vol 256 ◽  
pp. 01027
Author(s):  
Youzhuo Zheng ◽  
Yu Fu ◽  
Xiaobing Xiao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Distribution Automation ◽  
Analytic Hierarchy ◽  
Comprehensive Evaluation Method ◽  
Automation Equipment ◽  
Equipment Testing ◽  
Hierarchy Process

To utilize the objective information of index data and consider the important role of subjective judgment in the evaluation of distribution automation equipment testing results, a comprehensive evaluation method based on AHP (Analytic Hierarchy Process) and CRITIC (CRiteria Importance Through Intercriteria Correlation) method is proposed. Firstly, an evaluation index system of distribution automation equipment testing results considering seven big indicators and thirty-six small indicators is established. Secondly, AHP and CRITIC method are adopted to solve a practical evaluation problem of distribution automation equipment testing results. The subjective weights of each evaluation index are calculated by AHP, the objective weights of each evaluation index are calculated by the CRITIC method. Then, to achieve the sorting of distribution automation equipment testing results accurately, the comprehensive weights are obtained by combining the two weights. Finally, the analysis and comparison of case studies show that the proposed evaluation index system can accurately reflect the performance of distribution automation equipment and the comprehensive evaluation method of distribution automation equipment testing results which comprehensively considers the subjective comprehensive evaluation results.

Research on the Evaluation Method of Energy-Saving Technology about Traffic and Transportation

2011 ◽  
Vol 148-149 ◽  
pp. 1543-1547
Author(s):  
Xiao Li ◽  
Li Liu ◽  
Qiang Li
Keyword(s):  
Energy Saving ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Technology Evaluation ◽  
Energy Saving Technology

The energy-saving technology of the transport is still in its infancy. It has some questions about the evaluation and the promotion. Which lead to excellent energy-saving technology turn into productive forces can not be timely. In this case. The paper establishes the energy-saving technology evaluation index system by the Delphi; and calculated the evaluation index weights of each factor by the AHP. Finally, the paper proposed the evaluation method of the energy-saving technology which based on fuzzy comprehensive evaluation.

Index System and Model of Evaluation to Implemented Performance of Patent Strategy from Perspective of Sustainable Development

2014 ◽  
Vol 1073-1076 ◽  
pp. 2852-2856
Author(s):  
Zhi Jin Xu ◽  
Yan Kui Song
Keyword(s):  
Sustainable Development ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Comprehensive Evaluation Method ◽  
Patent Strategy

The implemented performance of enterprise’s patent strategy is an important component to measure its comprehensive benefits. It is of strategic significance for an enterprise to evaluate objectively its implemented performance of patent strategy. From the perspective of sustainable development, according to the 4 aspects of creation, application, protection and management of patent, the essay constitutes preliminarily a comprehensive evaluation index system of the implemented performance of enterprise’s patent strategy which is composed of a set of 21 indexes on the basis of an amount of domestic and foreign literature survey, case study and expert consultation, and analyzes the evaluation model and method of implemented performance of enterprise’s patent strategy with the fuzzy comprehensive evaluation and through a real case. The essay thinks the constitution of evaluation index system should obey a series of basic principles of objectivity, systematization, science and conciseness and the evaluation in essence is multi-object, multi-factor and multi-layer. Therefore, it is effective and feasible to select the Fuzzy Comprehensive Evaluation method.

The Evaluation of Highway Collapse Hazard Based on the Fuzzy Comprehensive Evaluation Method

2012 ◽  
Vol 253-255 ◽  
pp. 1593-1597 ◽  
Author(s):  
Jian Long Yan ◽  
Yong Cheng ◽  
An Hu Zhang ◽  
Yun Gang Zhao
Keyword(s):  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Hazard Evaluation ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Slope Structure

Highway collapse hazard is the combined result of many factors. Based on the formation mechanism of the road collapse hazard and main the factors, they are selected from three aspects of risk assessments master factor: the regional geological structure, slope characteristics, and regional environmental characteristics, also ultimately select the spacing of the joints, slope lithology, slope structure, slope height, slope gradient, rainfall (rainfall in 24 hours to ≥ 25mm of days), the vegetation coverage degree and earthquake strong eight main control factors, above all these factors, they established a road collapse hazard evaluation index system. Based on the fuzzy comprehensive evaluation method, it establishes a road collapse hazard evaluation model. Analytic Hierarchy Process is used to determine the evaluation index system of layers in index weight values. Risk index is based on the evaluation criteria. Finally, an empirical study of two highway projects instances.

The Influence Assessment of the Intensive Using the Sea on Marine Resources in Caofeidian

2014 ◽  
Vol 1010-1012 ◽  
pp. 333-338
Author(s):  
Li Tuo Cui ◽  
Zhi Wei Li
Keyword(s):  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Marine Resources ◽  
Evaluation Standard ◽  
Comprehensive Evaluation Method ◽  
Tourism Resources ◽  
Influence Degree

Based on the comprehensive evaluation method, the evaluation index system, composed of port resources, tourism resources, fishery resources, space and other resources,was established to evaluate the influence of the intensive using the sea in Caofeidian area on marine resources.The evaluation standard about the influence of the intensive using the sea on marine resources was founded.The comprehensive influence of theintensive using the sea in Caofeidian area on marine resources was evaluated.The results showed that the intensive using the sea in Caofeidian has an certain effect on marine resources and the influence degree is still in the acceptable range.The sea in Caofeidian can be appropriately used for the intensive using the sea. But in comparison,the influence of the intensive using the sea in implementing process is greater than that after the completion of the intensive using the sea. There is difference in the infulence of intensive using the sea on marine resources.The infulence degree on fishery reources is the greatest and reaches unacceptable leve,follwed by the spatial resources.The influence on the port and channel resources and the tourism resources is smaller.

Comprehensive Evaluation on Software Scheme of Sport E-Government Platform

2014 ◽  
Vol 1049-1050 ◽  
pp. 2114-2117
Author(s):  
Wen Wei Jia ◽  
Heng Chen
Keyword(s):  
Mathematical Model ◽  
Index System ◽  
Research Method ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Policy Makers ◽  
Comprehensive Evaluation Method ◽  
Index Evaluation

With the development of sports, sports e-government platform applications more widely. A number of schemes on how to e-government platform of sports to make decisions, to choose the most appropriate solution is always facing the problem for policy makers. This paper uses linear weighted comprehensive evaluation method for comprehensive evaluation of the program. First, based on the former research results, construct the evaluation index system and weight; Then, follow the steps for solving a mathematical model, including a single index evaluation, the first level indexes and the total target evaluation; Finally, based on a mathematical model three programs to evaluate e-government platform, to choose the optimal scheme. The results show that the research method has clear ideas, the calculation is simple, easy to operate, objective results and other characteristics.

Research on Handling the Conflict of Project Resource Based on Multi-Level Grey Comprehensive Evaluation Method

2013 ◽  
Vol 333-335 ◽  
pp. 2191-2196 ◽  
Author(s):  
Mao Gen Ge ◽  
Ming Zhou Liu ◽  
Ming Xin Zhang ◽  
Jing Hu ◽  
Li Li Yi
Keyword(s):  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Resource Conflict ◽  
Comprehensive Evaluation Method ◽  
Multi Level ◽  
The One

Research on frequent resource conflict in project-driven enterprises to establish the evaluation index system by integrating multiple evaluation rules of project activities, and evaluate two or more activities or tasks in the resource conflict by the multi-level grey comprehensive evaluation method, in which the one that has the highest evaluation value will be given priority to use the resource. The use of specific examples shows that it is practicable to tackle with the resource conflict of the enterprise.

The Effect of Enterprise Business Process Reengineering Fuzzy Comprehensive Evaluation

2014 ◽  
Vol 989-994 ◽  
pp. 2336-2339
Author(s):  
Song Ling ◽  
Chuan Yu Ye
Keyword(s):  
Business Process ◽  
Evaluation System ◽  
Business Process Reengineering ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Process Reengineering ◽  
Comprehensive Evaluation Method

This paper analyzed the mechanism of the Enterprise business process reengineering (BPR) to study the performance of the development process, Determined the importance of process cost, process, quality, customer satisfaction to process performance, and on this basis, further established the effect factors layer of process reengineering evaluation index system and build the enterprise develop business process reengineering effect evaluation system. Finally, this article determine the weight of each evaluation index based on the attribute hierarchical model and empirical analyses by using fuzzy comprehensive evaluation method.

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