Urban power distribution network medium and long term dynamic investment scale competition evaluation method and device

Abstract

The present invention relates to an urban power distribution network medium and long term dynamic investment scale competition evaluation method and device. The method comprises: selecting a plurality of evaluation indexes, and performing corresponding classification of the evaluation indexes into 6 classes of evaluation criterions; performing weight distribution of the 6 classes of evaluation criterions through a fuzzy analytical hierarchy process; performing analysis of each evaluation index long-term statistics data through a data envelopment analysis method, and dividing each evaluation index in each class of the evaluation criterion into an input index and an output index; according to the input index and the output index, employing the CCR model of the data envelopment analysis method to obtain the efficiency evaluation value of each class of the evaluation criterion and each planning period; employing a dynamic weight vector to perform linear dynamic weight aggregation of the efficiency evaluation value of each planning period and obtain a dynamic evaluation result; and according to the dynamic assessment result, establishing a dynamic checking scale, and performing scale checking of the construction cost and the construction efficiency. The urban power distribution network medium and long term dynamic investment scale competition evaluation method and device are suitable for indirect competition among similar enterprises at different areas to realize resource configuration efficiency maximization.

Description

technical field [0001] The invention relates to technical issues such as power distribution system planning and operations research, and specifically relates to a scale competition evaluation method and device for medium and long-term dynamic investment in urban power distribution networks. Background technique [0002] With the access of large-scale clean energy, the deepening of supply and demand interaction, the liberalization of incremental power distribution business, and the implementation of power substitution strategy, the distribution network, as an important link to ensure high-quality and high-reliability power consumption of users, has been difficult to adapt to the new situation Under the development needs of power supply reliability and distribution intelligence, my country's annual investment in distribution networks is huge and is increasing year by year. Upgrading and transforming weak links in power distribution systems and making precise investments are impo...

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Problems solved by technology

[0003] The medium and long-term dynamic investment strategy evaluation of distribution network is a typical dynamic comprehensive evaluation problem involving multiple objects, multiple indicators and multiple time periods. There are large differences due to different operational objectives. It is difficult to objectively understand the spatio-temporal characteristics and regional differences of distribution network construction and development only by observing and analyzing a large amount of data.

In the actual application of existing projects, most of the expert scoring methods are used. The evaluation results are greatly affected by the subjectivity of the experts, and the amount of information reflected in the evaluation results is relatively small. It is difficult to objectively, comprehensively, and dynamically reflect the actual development of the distribution network. Happening

At the same time, some scholars have proposed the post-evaluation model of distribution network investment effect, which mainly evaluates the operation effect and investment efficiency of distribution network investment and construction from the perspective of operation, and lacks the optimization of several construction schemes from the perspective of planning. The evaluation is poor to ensure the accuracy of distribution network investment planning, and there is also a lack of dynamic rolling evaluation of distribution network planning strategies for several planning cycles. The evaluation model only reflects the construction benefits of distribution network, and lacks incentives for evaluation results. In order to promote the benefits of distribution network planning and construction; and for distribution network performance indicators, some scholars have constructed evaluation index systems from distribution network operation capacity, structure, reliability, etc., but ignored the impact of investment construction on distribution network. The comprehensiveness of the evaluation needs to be further strengthened; some scholars have proposed a three-level comprehensive evaluation index system for smart distribution networks that considers distribution network characteristics, economics, and social benefits, but ignores the calculation and evaluation of indicators. methodological research, reducing the practical operability

[0004] It is concluded that the existing evaluation models for the efficiency of distribution network investment and construction mainly have the following three deficiencies: the evaluation method is highly subjective, the index system is relatively low in comprehensiveness, and the evaluation time scale is single

Distribution network investment planning is a medium- and long-term dynamic rolling planning problem. The construction scale is huge, and the construction goals vary greatly from region to region. The accuracy of investment strategies will directly affect the efficiency of distribution network upgrading and transformation.

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