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

A technology of comprehensive energy system and capacity allocation, which is applied in the field of energy system optimization and configuration, can solve the problems of restricting the operation economy and energy supply efficiency of the park's comprehensive energy system, not taking into account the characteristics of load growth year by year, and inconsistent with expected goals, etc., to achieve improvement The effect of comprehensive utilization efficiency, reduction of electricity purchase, and optimization of load curve

Active Publication Date: 2021-06-04
STATE GRID JIANGSU ECONOMIC RES INST +1
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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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  • Multi-stage capacity configuration method and system of park comprehensive energy system
  • Multi-stage capacity configuration method and system of park comprehensive energy system
  • Multi-stage capacity configuration method and system of park comprehensive energy system

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[0215] In the present invention, the calculation example is based on figure 2 Take the park integrated energy system shown as an example to optimize its capacity allocation. The total construction time of the park is K=15 years. Assuming that the load in this area increases rapidly in the initial stage, the growth rate of the load in the middle period decreases, and the load level gradually stabilizes in the later stage, the planning cycle can be divided into three stages, that is, N=3. The duration of each phase is 3, 5 and 7 years respectively.

[0216] In order to truly reflect the operation status of each equipment in this park, a typical day is selected in summer, winter and transition season. Taking one day as a scheduling cycle and dividing each day into 24 time periods, the load and PV forecast output curves of the park are as follows image 3 As shown, the real-time electricity price data of the park is shown in Table 1, the maximum load information of each stage ...

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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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/06
CPCG06Q10/0631G06Q10/04G06Q50/06Y04S10/50
Inventor 周洪伟邹盛宗炫君郭莉杨凯沈高锋张敏吴晨
Owner STATE GRID JIANGSU ECONOMIC RES INST
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