Park electricity distribution and sale planning operation method considering wind, light and storage

Abstract

The invention discloses a park electricity distribution and sale planning operation method considering wind, light and storage. The method comprises the following steps: S1, establishing an investmentstrategy independent optimization model in which park electricity distribution and sale participate; S2, converting the optimization model into a mixed integer second-order cone programming model according to second-order cone relaxation, a bigM method and an auxiliary variable adding method; S3, determining a topological line structure, a reference capacity value, a planned age limit, a system load growth coefficient, typical load daily load data and wind-solar output data of the park power distribution network system; and S4, according to the parameters determined in the S3 and the planningmodel in the S2, performing calculation by utilizing Matlab to obtain planning capacities of wind, light and storage. According to the planning operation method, wind power, photovoltaic and energy storage are comprehensively considered, asset operation optimization configuration is effectively achieved, the optimal equilibrium solution can be rapidly achieved, the stability of the solution is good, and powerful support is provided for improving the operation capacity of companies in the power industry.

Description

technical field [0001] The invention belongs to the technical field of electricity distribution and sales in electric power systems, and specifically relates to a method for planning and operating electricity distribution and sales in parks considering wind, light and storage. Background technique [0002] For the newly-increased power distribution and sales entities after the "No. 9 Document" of the electricity reform, most of the previous studies focused on the two aspects of the new distribution and sales entities' own business development model planning and effective bidding strategies, and most of them focused on realizing a single grid line planning The planning model is designed for the purpose of maximizing the benefits of the wind power, photovoltaic and energy storage, and it is impossible to cover the comprehensive optimal planning of wind power, photovoltaic and energy storage for reality. There are also studies that analyze the energy relationship between the cu...

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Problems solved by technology

In terms of optimization planning for electricity sales companies, the existing methods have problems such as low calculation accuracy, insufficient consideration of economic goals, and quantitative optimization models have not yet been constructed. In addition, although some models have obtained the system pricing model in the market environment, However, it has not been used to reversely guide the optimal configuration of electricity sales companies, and there is still a certain distance from the goal of optimizing applications

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