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Two-stage optimization operation method and system for scene analysis-based integrated energy system

An integrated energy system and optimized operation technology, applied in the two-stage optimized operation method and system field of the integrated energy system, can solve problems such as large number of scenarios and difficulty in solving optimization problems, achieve strong robustness, save investment in capacity expansion and transformation, The effect of increasing the solution speed

Active Publication Date: 2021-09-24
CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
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Problems solved by technology

For a stochastic solution to be reliable, the number of scenarios to consider must be large, which can lead to intractable optimization problems

Method used

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  • Two-stage optimization operation method and system for scene analysis-based integrated energy system
  • Two-stage optimization operation method and system for scene analysis-based integrated energy system
  • Two-stage optimization operation method and system for scene analysis-based integrated energy system

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] like figure 1 As shown, the two-stage optimal operation method of the integrated energy system based on scenario analysis in this embodiment includes steps:

[0038] Based on the forecast reference value of each energy source and load, and taking the lowest operating cost before the day as the objective function, an optimization model for the day-ahead stage is constructed;

[0039] Taking the minimum incremental expected value or the largest decrement expected value of the day-ahead cost in the actual operation scenario within the day as the objective function, an intra-day phase optimization model is constructed;

[0040] Through the optimization model of the day-ahead phase and the intra-day phase optimization model, the global optimal operation scheme is obtained;

[0041] Among them, the multi-parameter fast forward selection meth...

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Abstract

The invention discloses a two-stage optimization operation method and system for a scene analysis-based integrated energy system and the method comprises the steps: building a day-ahead stage optimization model based on the prediction reference value of each energy and load with the lowest day-ahead operation cost as an objective function; constructing an intra-day stage optimization model by taking the minimum increment expected value or the maximum decrement expected value of the day-ahead cost in an intra-day actual operation scene as an objective function; acquiring a global optimal operation scheme by the day-ahead stage optimization model and the intra-day stage optimization model; wherein an actual operation scene is cut down through a multi-parameter fast forward selection method so as to improve the optimization speed. The invention has the advantages of being high in optimization speed, good in economical efficiency, good in inclusiveness and the like.

Description

technical field [0001] The present invention mainly relates to the technical field of energy optimization, in particular to a method and system for two-stage optimal operation of an integrated energy system based on scenario analysis. Background technique [0002] Due to the significant differences in the physical characteristics, market mechanism, informatization and automation levels of each subsystem of the integrated energy system, the independent planning, construction, operation and management of different units have been adopted for a long time, and the optimization of the overall energy system has not been considered overall. . Distributed energy has become the core of the terminal integrated energy supply system with its advantage of being close to the load, reducing the system's dependence on the main network, thereby reducing the expansion investment of the distribution network to a certain extent. However, the volatility, intermittency and unpredictable load of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06312G06Q50/06Y02P90/82
Inventor 田昕付灏余雅峰刘畅
Owner CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
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