Comprehensive energy system topology optimization method considering energy flow delay characteristic

Abstract

The invention relates to a comprehensive energy system topology optimization method considering an energy flow delay characteristic. The optimization method comprises the following steps of S1, establishing a comprehensive energy system network mechanism model including a steam and hot water conveying network, a chilled water and cold air conveying network and a compressed air conveying network; s2, calculating response characteristics of key parameters such as temperature and flow of a working medium at the tail end of each energy flow transport network along with fluctuation of a source end;s3, establishing an objective function of the lowest comprehensive delay of various energy flows, the weight coefficient of each energy flow delay being obtained by a fuzzy analytic hierarchy process; s4, constructing a supply and demand working condition combination set, and setting a plurality of energy flow supply and demand matching constraints and comprehensive energy system network node space distribution constraints; and S5, solving an optimization problem formed by the target function and the constraint condition in the above steps by adopting a particle swarm optimization algorithm to obtain an optimal topology planning scheme of the comprehensive energy system.

Description

technical field [0001] The invention relates to a comprehensive energy system optimization method, which belongs to the field of comprehensive energy systems, and specifically covers a comprehensive energy system topology optimization method considering energy flow delay characteristics. [0002] technical background [0003] At present, my country's energy consumption continues to grow, and the total primary energy production in 2017 has reached 3.585 billion tons of standard coal. From the perspective of regional energy, how to solve the problem of diversified energy demand in the region, solve the problem of improving regional energy efficiency, and promote the sustainable development of regional energy is the focus of research in the energy field. Driven by the policy guidance of energy transformation and the technology of cyber-physical integration, the concept of an integrated energy system for the above-mentioned problems has emerged. The integrated energy system refe...

AI Technical Summary

Problems solved by technology

However, the comprehensive energy system planning evaluation method is relatively single, mainly based on economic and emission characteristics, and few methods consider the delay characteristics of different energy flows

Taking steam energy flow as an example: under the action of various factors such as steam parameter fluctuation, compressibility, state change, friction and heat transfer, the working medium flow process of the steam pipe network, its complex transient characteristics lead to the source and user end steam Slow response to temperature and flow

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