Park-level comprehensive energy system optimization method considering electric energy replacement effect

Abstract

A park-level comprehensive energy system optimization method considering an electric energy replacement effect comprises the following steps of: modeling each unit of a park-level comprehensive energysystem, establishing an evaluation index system of the park-level comprehensive energy system, constructing a combined weighting model, determining an optimal weight, grading and scoring a park-levelcomprehensive energy system construction scheme, and analyzing and optimizing the park-level comprehensive energy system construction scheme. According to the method, the criteria of economy, reliability, environmental protection, energy efficiency, sociality and the like are comprehensively considered, a scientific and reasonable evaluation index system and method are established for the park-level comprehensive energy system, and rationality evaluation and scheme optimization of a comprehensive energy system construction scheme are achieved. Therefore, technical support is provided for planning and construction of industrial parks, and the method has important significance in achieving multi-energy complementation of the parks, improving the energy utilization efficiency and constructing a green and clean consumption mode.

Description

technical field [0001] The invention relates to the field of evaluation and optimization of comprehensive energy system construction schemes, in particular to a method for optimizing the comprehensive energy system of comprehensive energy parks considering the implementation effect of electric energy substitution. Background technique [0002] Compared with the traditional energy distribution system, the comprehensive energy system based on the power grid, integrates different energy sources, and integrates a large number of distributed renewable power generation devices and distributed energy storage devices is in the overall coordination of the utilization of various types of energy and the realization of system Life-cycle optimization and energy efficiency improvement have obvious advantages, and have become a hot spot in current research. The integrated energy system realizes the organic integration of the coupling and distribution relationship between various types of e...

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Problems solved by technology

[0004] 1. Existing research mainly focuses on the optimal operation scheduling and equipment optimal configuration of the park-level integrated energy system, or the post-evaluation research on the completed schemes, and there are few comprehensive evaluations and optimization rankings for the primary selection schemes in the comprehensive energy system planning stage mention

[0005] 2. Most of the existing research on energy efficiency indicators is aimed at a single dimension or a single type of energy conversion and storage equipment, such as P2g equipment and CCHP systems. The system is not fully applicable

[0006] 3. The currently constructed evaluation indicators mostly consider the technical economy, energy utilization rate, social environment and other criteria, but do not fully consider the multi-faceted benefits and effects brought about by the construction of the park-level integrated energy system. It is easy to have deviations in the evaluation results, and it is still unable to meet the requirements of the comprehensive energy system. The need for comprehensive evaluation of a comprehensive energy system integrating "source-network-load-storage" with multi-energy coupling and complementary characteristics

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