Comprehensive energy system optimizing and planning method considering variable working condition characteristics of equipment

Abstract

The invention discloses an integrated energy system optimization and planning method considering variable working condition characteristics of equipment, relates to the technical field of integrated energy systems, and on one hand, equipment operation working condition characteristics are optimized by optimizing a BP neural network method based on a genetic algorithm, so that the system planning configuration flexibility is improved. And on the other hand, in order to realize reasonable decision making of the comprehensive planning scheme of the comprehensive energy system and construct a multi-index comprehensive evaluation system, an evaluation method combining an analytic hierarchy process and an entropy weight method is adopted to carry out comprehensive evaluation and scoring on the preliminary planning scheme to obtain an optimal planning scheme, the planning method considers the influence of various factors, and the planning accuracy is improved. According to the method, the economy, the technology and the environmental protection of the comprehensive energy system are comprehensively optimized by utilizing a multi-objective function, a comprehensive evaluation index system is creatively established, and more specific technical requirements and environmental indexes are introduced into a planning process, so that a planning scheme is more specific, flexible and reliable.

Description

technical field [0001] The invention relates to the technical field of integrated energy systems, in particular to a method for optimizing and planning an integrated energy system considering the characteristics of equipment under variable working conditions. Background technique [0002] In traditional planning, various forms of energy supply systems such as power systems, thermal systems, and natural gas systems are often planned and designed independently, and operate independently. Very inefficient. Under this circumstance, the Integrated Energy System (IES), which can couple various energy forms such as electricity, gas, cold, and heat, and realize the cascade utilization and mutual conversion of various energy sources, has begun to enter people's field of vision. With the development of the integrated energy system, the coupling of electricity, gas, heat and other energy sources and the mutual substitution of energy sources provide a new way to solve the problem of en...

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Problems solved by technology

However, the commonly used least squares method has poor tolerance and is more sensitive to outliers, and its calculation results cannot meet the requirement of the minimum sum of absolute residual values. combine

[0004] On the other hand, considering the influence of environment, economy, technology and other factors on the comprehensive energy system planning, it is difficult to guarantee the optimal configuration scheme of the system with a single target planning and operation strategy, and there is also a lack of a complete configuration evaluation system to improve planning reliability.

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