Multi-optimization target weighting method and system in construction of integrated energy system

An integrated energy system and optimization target technology, applied in the multi-optimization target weighting method and system field, can solve the problems of damaged benefits of integrated energy system planning decision-making results, unreasonable multi-target weights, etc., to improve benefits and speed up the solution , improve the effect of the selection effect

Pending Publication Date: 2021-06-11
STATE GRID BEIJING ELECTRIC POWER +1
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Problems solved by technology

[0005] The purpose of the present invention is to propose a multi-optimization target weighting method and system in the construction of an integrated energy system based on Pareto optimality, aiming to achieve Pareto optimality in the planning and operation of the integrated energy s

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  • Multi-optimization target weighting method and system in construction of integrated energy system
  • Multi-optimization target weighting method and system in construction of integrated energy system

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Embodiment approach

[0046] Embodiments of the present invention provide a multi-optimized target empowerment method and system based on Pareto optimal integrated energy system construction.

[0047] Such as figure 1 with 2 As shown, the multi-optimized target empowerment method is based on the basic starting point determined by the weight of multiple targets: through the weight coefficient, converting multi-objective optimization problems into single target optimization problems to solve, the choice of weight coefficient should be able to guide the single target. The solution obtained by the optimization problem is close to multi-objective optimization issues, and the best solution concentration of Par Turko is compliant with the value of multiple indicators. When actually executing an algorithm, first solve only a simplified single target optimization problem of economic goals, at which point other target function values ​​do not reach the optimal value. Further, the requirements of the goal other t...

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Abstract

The invention discloses a multi-optimization target weighting method and system in construction of an integrated energy system, and the method comprises: determining a basic starting point based on the weights of a plurality of targets: converting a multi-target optimization problem into a single-target optimization problem through a weight coefficient, so as to solve the problem, therefore, the selection of the weight coefficient should guide the solution obtained by the single-target optimization problem to be close to the Pareto optimal solution set in the multi-target optimization problem and accord with the value for weighing and rejecting multiple indexes. When the algorithm is actually executed, firstly, the simplified single-target optimization problem which only considers the economical target is solved, and at the moment, other target function values do not reach optimal values. The requirements of targets except the economical efficiency are further improved, a series of initial values of weight coefficients are obtained through the KKT condition, finally, weight coefficient vector values capable of reaching or approaching the Pareto frontier are found through the NSGA-II algorithm, and finally weight coefficient vectors are determined from the weight coefficient vector values.

Description

Technical field [0001] The present invention belongs to the field of new energy and energy saving technology, and specifically involves a multi-optimized target empowerment method and system in a comprehensive energy system construct. Background technique [0002] In recent years, it has benefited from enhancing energy utilization efficiency, and the potential of high proportion of renewable energy is used, and the integrated energy system has become an important part of my country's energy transformation. In the integrated energy system, different energy forms are coordinated in time and space, thereby achieving more reliable, economical and low-carbon energy supply. [0003] In the planning and operation of integrated energy system, there are many objectives that need to be considered, including minimizing investment operating costs, minimizing carbon emissions, maximizing renewable energy penetration and minimizing abandonment, etc., these goals There may be a conflict between...

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Application Information

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IPC IPC(8): G06F30/27G06F111/06G06F119/22
CPCG06F30/27G06F2111/06G06F2119/22
Inventor 赵锴刘宇施冕雄张维吴天齐张新沈渡
Owner STATE GRID BEIJING ELECTRIC POWER
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