Capacity optimization method for park-level integrated energy system based on investment constraints

Abstract

The invention discloses a capacity optimization method for a park-level integrated energy system based on investment constraints. The method comprises steps that S1, a load type required by a park isdetermined and recorded as a sold energy set, and various types of energy load demands are predicted; S2, a form of externally available energy is determined and recorded as a purchased energy form set; S3, corresponding energy production device and conversion device types are determined and recorded as a device type set; S4, relevant available energy storage devices are determined and listed intoan energy storage device set; S5, an alternative scheme combination set is formed according to a random initialization scheme; S6, a corresponding annualized device investment amount is calculated incombination with the alternative scheme combination set to form a reserved scheme set; S7, the reserved scheme set is screened by utilizing investment constraints to form a reserved scheme set; S8, the reserved scheme set is inputted into a multi-target collaborative optimization model; and S9, the TOPSIS method is utilized to solve an optimal configuration scheme.

Description

technical field [0001] The invention relates to the field of energy system optimization, in particular to a method for optimizing the capacity of park-level comprehensive energy systems based on investment constraints. Background technique [0002] At present, with the deepening of power system reform and the continuous emergence of problems caused by traditional energy consumption, in order to improve energy utilization efficiency and break down the technical barriers between energy sources, Integrated Energy Systems (IES, Integrated Energy Systems) are gradually being paid attention to. The integrated energy system is based on the energy substitution of the supply side and the demand side. Through the reasonable planning and scheduling of distributed energy, energy storage and other equipment, the coupling of heterogeneous energy such as cold, heat, electricity, and gas is realized, and finally the energy is improved. The goal of comprehensive utilization efficiency. [0...

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Problems solved by technology

The integrated energy system is an energy supply system with points as the core and multiple energy sources coupled with each other. When planning an integrated energy system, the coupling of each energy source, network, load, and storage should be considered, and the influencing factors in actual construction should be considered: Judging from previous research results, the current integrated energy system planning only focuses on long-term goals such as annual cost, benefit, and energy utilization, ignoring the construction investment of the integrated energy system, which also restricts the effect of the integrated energy system. The construction investment cost of the energy system is studied for the optimization of the integrated energy system

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