Abstract
In order to improve the weight calculation accuracy and overall evaluation accuracy of incremental distribution network project economic evaluation, a new incremental distribution network project economic evaluation method based on value theory is proposed in this paper. Firstly, based on the value theory, the economic characteristics of incremental distribution network are analyzed. Secondly, the economic benefits of the incremental distribution network project are calculated from the perspectives of DG owned operators and DG owned users. Finally, based on the calculation results of economic benefits, this paper constructs the evaluation index system, calculates the evaluation weight from both subjective and objective aspects, and finally completes the economic evaluation of incremental distribution network project. The experimental results show that compared with the traditional evaluation methods, this method can accurately calculate the evaluation weight, so as to obtain more accurate evaluation results.
Highlights
With China’s economic development and the increasing expansion of power grid scale, whether the reliability of distribution network meets the requirements and whether the economy is reasonable has become a research hotspot [1]
With the continuous development of transmission and distribution price reform, energy Internet, and comprehensive energy system, the income model of incremental distribution network is quite different from that of traditional power grid, and the investment of incremental distribution network will not be limited to the investment of distribution and transformation equipment; it will involve related investments such as integrated energy services, microgrid, and energy Internet [2, 3]
Based on the above data, the calculation accuracy and evaluation accuracy of evaluation weight are set as experimental comparison indexes. e economic evaluation method of distribution network project proposed in this paper and reference [5] combined with nonlinear mapping
Summary
With China’s economic development and the increasing expansion of power grid scale, whether the reliability of distribution network meets the requirements and whether the economy is reasonable has become a research hotspot [1]. E income model and investment activities of incremental distribution network are different from those of traditional power grid investment, mainly in the following two aspects. The economic benefits of the incremental distribution network project are calculated from the perspectives of DG owned operators and DG owned users. E incremental distribution network project can be divided into the following stages: feasibility study stage, construction period, and operation period. It is assumed that the operation calculation period of incremental distribution network is N years, in which the construction period is M years and the load growth period is R years. E construction investment cost of incremental distribution network operators in year y is. E power purchase cost of incremental distribution network operators in year y is (3) Power Purchase Cost. e power purchase cost of incremental distribution network operators in year y is
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