Evaluation of Planning Investment Efficiency and Benefit of Provincial Power Grid Considering the Reform Transmission and Distribution Prices

doi:10.12204/j.issn.1000-7229.2020.11.014

Abstract

Abstract:

The reform of transmission and distribution prices puts forward higher requirements for the front-end planning of the provincial power grid. Based on the requirements of transmission and distribution price reforms, a unit output efficiency benefit index model for different types of planned investment projects of provincial power grids is constructed, by comprehensively considering the superimposed impact of historical planning project selection, the relative importance of various projects and planning target constraints. The provincial grid investment allocation and optimization model based on the efficiency benefits index model is constructed. And based on the risk index model, the key uncertainty indicators that affect the efficiency benefit index are analyzed. The effectiveness of the method is verified from two aspects compared with traditional methods and core supervision parameters of transmission and distribution prices. The results show that the proposed method is superior to the traditional method and electricity and assets are the main indicators of the power grid investment efficiency benefit index, which are consistent with the core parameters of transmission and distribution price supervision. In addition, power grid companies should focus on projects such as meeting new loads, strengthening infrastructure and supporting transmission from substations.

Key words: reform of transmission and distribution price, planning, efficiency benefit model, risk index

CLC Number:

TM715

WANG Ronghua, DU Ying, GOU Quanfeng, YANG Jie, YOU Weiyang, LI Dongwei. Evaluation of Planning Investment Efficiency and Benefit of Provincial Power Grid Considering the Reform Transmission and Distribution Prices[J]. ELECTRIC POWER CONSTRUCTION, 2020, 41(11): 135-144.

Figures/Tables 8

Table 1 Efficiency and benefit evaluation indicators for different types of 220 kV projects considering the reform of transmission and distribution prices and unit output

Table 2 Basic data of various indicators of a provincial power company

Table 3 Level correlation coefficient and efficiency benefit index of various weighting methods

Table 4 Investment allocation amount and optimal benefit of various projects

Table 5 Basic information of A and D projects

Table 6 Comparison with the investment allocation amount of various projects calculated by traditional methods

Table 7 Comprehensive risk index of preferred projects

Table 8 The main parameters that affect the efficiency and benefit index of the optimal project

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