A New Comprehensive Evaluation Method for Investment and Development Status of County Distribution System

doi:10.3969/j.issn.1000-7229.2016.01.001

Abstract

Abstract:

The comprehensive assessment of the investment and development status of county distribution system is an important part in distribution system planning and investment demanding analysis, and is also an important problem to be addressed. Considering that the assessment indices for county distribution system have the feature of multiple attributes, we firstly present an object-based comprehensive assessment index system. Then, we use the combination weighting method and the self-adaptive weighting correction to determine the weights of indices. The index weights are divided into ranking weights and classification weights in the combination weighting method, in order to respectively reflect the influence degrees of the overall difference of index sample values with different properties and evaluation objects on the evaluation results, which are determined by order relation analysis method and projection pursuit principle respectively, to determine the combination weight according to the principle of minimum identification information. Next, we adopt self-adaptive weighting correction for evaluation object weight whose indicator values seriously deviate from the normal range. Finally, we employ 5 county distribution systems in a province to demonstrate the proposed method, and use radar chart to find the weak links of power grid construction. The simulation results show that the proposed evaluation method can reasonably reflect the investment and development status of county power distribution system.

Key words: county distribution system, investment and development status, assessment index system, combination weight, projection pursuit, self-adaptive weighting correction

CLC Number:

TM 72

TIAN Fangyuan, GUO Yong, LIANG Bomiao, WEN Fushuan. A New Comprehensive Evaluation Method for Investment and Development Status of County Distribution System[J]. Electric Power Construction, 2016, 37(1): 1-8.

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