Multi-stage capacity configuration method and system of park comprehensive energy system

Abstract

The invention discloses a multi-stage capacity configuration method and system for a park integrated energy system. The method comprises the following steps: firstly, analyzing the construction characteristics of a typical park integrated energy system, dividing the planning cycle of the park integrated energy system into a plurality of stages, gradually increasing the configuration capacity of each device in the park according to the year-by-year growth characteristics of loads, and establishing a multi-stage capacity configuration model of the park integrated energy system; then, on the basis of the known park integrated energy system topology, establishing an operation model of each energy conversion device, and meanwhile, considering various constraint conditions including energy balance, device output, energy storage charge and discharge and the like; secondly, considering the investment cost, the operation and maintenance cost and the equipment residual value of the system, and establishing an economical optimization objective function; and finally, verifying effectiveness and rationality of the model and the method in the aspect of capacity configuration of the park integrated energy system through example analysis. Reference can be provided for planning and equipment capacity configuration of the park integrated energy system.

Description

technical field [0001] The invention belongs to the technical field of optimal configuration of energy systems, and in particular relates to a multi-stage capacity configuration method and a configuration system of a park comprehensive energy system. Background technique [0002] Compared with the traditional energy supply system, the comprehensive energy system of the park has higher comprehensive energy utilization efficiency, which is an important development trend in the energy field. Therefore, the planning of the park's comprehensive energy system is of great significance for promoting the transformation of the energy structure. However, the currently widely used park integrated energy system planning scheme often plans the equipment needed in the park at one time, assuming that the load in the park remains unchanged throughout the planning cycle, and does not take into account the year-by-year growth characteristics of the load. The economy of the integrated energy s...

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Problems solved by technology

However, the currently widely used park integrated energy system planning scheme often plans the equipment needed in the park at one time, assuming that the load in the park remains unchanged throughout the planning cycle, and does not take into account the year-by-year growth characteristics of the load. The economy of the integrated energy system in the park does not match the expected goal in the design stage. There are problems such as advanced construction, idle equipment in the early stage of operation, aging equipment in the later stage of operation, and insufficient capacity, which seriously limit the operating economy and energy efficiency of the integrated energy system in the park. supply efficiency

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