Optimization policy-based power distribution network planning project automatic optimization method

Abstract

The invention discloses an optimization policy-based power distribution network planning project automatic optimization method. By analyzing a relationship between development scale of a power distribution network of a region and power load increment, in combination with historical power network indexes and investment degree changes of the region, and based on current power network problems, loadprediction results and region investment policies, the priority levels of projects are automatically sorted, and a power network investment lower limit, namely, a rigid investment demand is calculated; by specifying an investment upper limit, the projects are automatically optimized; and the projects having the urgency degrees of priority and meeting the investment plan requirements are screened out. According to the optimization policy-based power distribution network planning project automatic optimization method, for the problems in current power distribution network planning project optimization sorting work, basic power supply obligations and investment benefit optimization of power network enterprises are comprehensively considered; a project optimization method is proposed; a project optimization sorting model is built; a quantitative analysis basis is provided for project optimization; and scientific guidance is provided for power network planning investment decisions.

Description

technical field [0001] The invention belongs to a distribution network planning system in the electric power industry, in particular to an automatic optimization method for distribution network planning items based on an optimization strategy. technical background [0002] As the last link directly facing the power users, the distribution network is driven by the rapid growth of load demand due to economic development, and the user's requirements for power supply reliability and power supply quality are constantly improving. The relationship between the increasing construction demand and the limited investment capacity of power grid enterprises How to reasonably arrange the project construction time sequence in the distribution network planning and realize the maximization of investment benefits is an urgent problem to be solved in the current distribution network planning. [0003] At present, in distribution network planning, the optimal order of projects is mostly based o...

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Problems solved by technology

[0003] At present, in distribution network planning, the optimal order of projects is mostly based on the initial investment cost of the planning scheme, and the projects with low cost are preferred; or the project effectiveness is judged subjectively based on the experience of planners, and the order of projects is determined, resulting in the optimal order of planned projects. Lack of quantitative analysis basis for investment benefits, which is greatly affected by the experience level of planners

Some scholars have proposed to establish an index system to evaluate planning projects in their research, and compare and rank them by indirectly reflecting project investment benefits. However, there are also small and numerous distribution network planning projects, and it is difficult to evaluate and analyze each project index. Both are objective and fair

In addition, because power grid enterprises, as public institutions, are also responsible for power supply obligations while pursuing economic benefits, the current project optimization and ranking lacks comprehensive consideration and measurement of enterprise power supply responsibilities and project investment benefits

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