Fuzzy correlation opportunity planning-based energy storage-containing comprehensive energy system scheduling method

Abstract

The invention discloses a fuzzy correlation opportunity planning-based energy storage-containing comprehensive energy system scheduling method, which belongs to the technical field of power system scheduling, and specifically comprises the steps of performing mathematical modeling on energy storage equipment in a comprehensive energy system, and linearizing the loss cost of single energy storage charging and discharging; building fuzzy representation of the wind power and load prediction uncertainty, and relaxing the power balance equation containing the uncertainty; converting the power balance equation into a maximum opportunity function, taking the maximum opportunity function as one of target functions, and establishing a multi-target day-ahead optimization scheduling model taking maximum fuzzy event possibility and minimum operation cost as targets; constraining the output of other equipment in the comprehensive energy system, specifically including combined cooling heating and power equipment constraints, gas boiler constraints, electric refrigerator constraints and power grid exchange power constraints; and solving the established multi-target day-ahead scheduling model to obtain an optimal day-ahead scheduling result. The related opportunity planning method in the fuzzy environment is applied to comprehensive energy system scheduling, and economic operation of the system is achieved while safe and reliable energy supply is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electric power system scheduling, and in particular relates to a scheduling method for a comprehensive energy system including energy storage based on fuzzy correlation opportunity programming. Background technique [0002] The development of renewable energy and smart grid has brought the world into the era of energy interconnection. Compared with the traditional single electric energy system, the integrated energy system has become an important technical way to improve energy efficiency and reduce operating costs through the coupling of multiple energy sources such as electric energy, thermal energy, and natural gas. In a multi-energy system, the energy storage power station acts as a "buffer" between the energy supply side and the user side, enabling combined heating and power (CHP) or combined cooling heating and power , CCHP) does not need to operate in the conventional way of "fixing heat by electr...

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Problems solved by technology

However, the existing scheduling strategies focus on random optimization and robust optimization, which not only require high original data, but also often sacrifice economic efficiency due to being too conservative.

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