Design method for integrated energy system with source-load-storage coordination and interaction

Abstract

The invention relates to a design method for an integrated energy system with source-load-storage coordination and interaction. A lot of source-load output scenes are generated via Latin hypercube sampling, and a few of specific probability of planning scenes in which original scene characteristics are reserved are obtained via cluster analysis combined with a scene reduction method. An installedcost model and an operation cost model are established for each piece of equipment, an upper-level optimization model is optimized to minimize the sum of the annual investment conversion cost and theannual operation cost in different probability scenes, a lower-level optimization model is optimized to minimize the annual operation cost in different probability scenes a double-layer planning modelof the integrated energy system with source-load-storage coordination and interaction is established, and different reliable and safe operation constraints are met. The upper-level and lower-level optimization models are solved by an element model global optimization algorithm and a second-order conic optimization method respectively, solving is carried out by interactive iteration till convergence, and the installed capacity and optimal operation scheme of each piece of equipment of the integrated energy system are obtained by optimization. The method can be applied to capacity planning andoptimized design of the multiple energy complementary integrated energy system.

Description

technical field [0001] The invention relates to a design method of an integrated energy system. Background technique [0002] With the shortage of fossil energy and people's attention to the energy crisis and climate crisis, the Energy Internet, which focuses on energy structure reform and efficient utilization of new energy, is showing a rapid development trend worldwide. As an important component of the Energy Internet on the user side, The multi-energy complementary integrated energy system is directly oriented to users, and it is easy to realize the interconnection and interaction of "source", "charge" and "storage". Therefore, the development of a multi-energy complementary integrated energy system on the user side is of great significance to meet user needs locally, promote the consumption of distributed renewable energy, and improve the comprehensive energy efficiency, operational reliability, and economy of the energy system. [0003] The planning and design of the ...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the existing planning schemes do not consider in detail the energy transfer adjustment capability of electric thermal energy storage and load demand response, and the uncertainty of the source side and the load side, which makes it difficult for the calculation results of the planning scheme to be fully applicable to future operations. Shortcomings, a design method of integrated energy system with coordination and interaction of source-load-storage is proposed

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