Weak link identification and capacity expansion transformation method for park integrated energy system

Abstract

The invention relates to a weak link identification and capacity expansion transformation method for a park integrated energy system. The method comprises the following steps: 1) modeling PIES and each device; 2) constructing a PIES operation efficiency evaluation index system; 3) identifying the weak link of the existing PIES through three stages of data acquisition, data analysis, index measurement and calculation and the weak link; and (4) enabling the existing PIES to be subjected to expansion transformation, so that the efficiency of the PIES in the aspects of operation economy, energy conservation, emission reduction, renewable energy consumption promotion and the like is improved. According to the weak link identification and capacity expansion transformation method for a park integrated energy system, the problems of poor coherence between an existing PIES planning stage and an operation stage, unreasonable equipment type selection and capacity configuration, large difference between the PIES actual operation effect and an initial design target and the like are solved, the weak link of the system is identified starting from existing PIES operation efficiency analysis, and existing PIES is planned and transformed, the potential of the system is mined, and the operation economy and environmental protection property of the system are improved.

Description

Technical field[0001]The invention belongs to the technical field of park integrated energy systems, and particularly relates to a method for identifying weak links and capacity expansion and transformation of a park integrated energy system.Background technique[0002]In recent years, the promotion and application of multi-energy coupling technologies such as combined cooling, heating and power generation, distributed power generation, and electricity to gas have promoted the development of integrated energy systems. Integrated energy systems refer to the process of planning, design, construction, and operation. An integrated system of energy production, supply and consumption formed by organic coordination and optimization. Among them, the Park-level Integrated Energy System (PIES) is a typical way of multi-energy coupling of electricity / heat / gas on the user side, which has been rapidly developed in various places, such as the State Grid Customer Service Center, the North Park Green...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for identification of weak links and capacity expansion and transformation of the integrated energy system of the park, which solves the problem of poor connection between the planning stage and the operation stage of the existing PIES, unreasonable equipment selection and capacity configuration, and makes the For problems such as the large difference between the actual operation effect of PIES and the initial design goal, start with the analysis of the operation efficiency of the existing PIES, identify the weak links of the system, and carry out planning and transformation of the existing PIES, tap the potential of the system, and improve the operation economy and environmental protection of the system sex

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