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Study on Comprehensive Evaluation Method of Smart Grid

Author: ZhangHaiRui
Tutor: SongYiQun
School: Shanghai Jiaotong University
Course: Electrical Engineering
Keywords: AHP Anti-entropy method System Dynamics Dynamic Evaluation Smart Grid
CLC: TM76
Type: Master's thesis
Year: 2012
Downloads: 905
Quote: 3
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Abstract


Smart Grid is the latest trends in today’s power system development change and is the important means to promote renewable energy development and energy saving.The construction of smart grid requires careful planning. As a result, smart grid evaluation is Guiding significance to network planning and construction. This paper focuses on the evaluation method of the smart grid to commence the study, and proposes the smart grid evaluation system from static and dynamic evaluation, and conductes in-depth discussion on the evaluation method. Study are as follows:In view of current smart grid development in China, this paper constructs evaluation indexes of green and efficient smart grid, and puts forward a novel evaluation method—anti-entropy weight method. Through analysis of the sensitivity of four typical indexes, the anti-entropy weight is proved more suitable for smart grid evaluation. Then, anti-entropy weight based comprehensive evaluation method is proposed in this paper, it is suitable to evaluate the diversity of smart grid development in different area. It is shown via simulation results of smart grid evaluation in five areas that the proposed anti-entropy weight evaluation method is effective and reasonable.Construct hierarchical evaluation indexes of smart grid, which are divided into process indexes and effect indexes, and propose evaluation method based on AHP-anti-entropy method. The target is weighted through AHP, which ensures the consistency of evaluation focus and the direction of smart grid. The index is weighted through anti-entropy weight method, which highlights the regional differences through the degree of disorder of indexes. And the smart grid evaluation procedure based on AHP-anti-entropy method is given. By contrast with the objective weighting method, it shows practicality of the evaluation method based on AHP-anti-entropy. Through the evaluation study of three stages of smart grid development, it descibes the proposed evaluation method can be applied to different stages, and can guide the planning and construction of smart grid.Proposes the potential and development process evaluation of smart grid, that predicting the future development of smart grid through the establishment of system dynamics model of smart grid, then evaluating with AHP-anti-entropy method. Potential evaluation is designed to measure the longitudinal development of future smart grid capabilities, predict the future development in a given state, and compare the potential of the smart grid. Development process evaluation is designed to evaluate the overall situation of the smart grid through cross-section, and compare the overall level of future development of the grid. Through the system dynamics simulation of smart grid, multiple time points can be spanned to show the development and changes and to understand its potential; by observing the development of smart grid, the relevant factors in its impact can be understood. The two evaluation method is important to smart grid investment and planning.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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