Comprehensive energy system optimal scheduling method considering conditional risk value

A technology that integrates energy systems and conditional value-at-risk, and is used in system integration technology, information technology support systems, resources, etc.

Pending Publication Date: 2020-09-18
XI AN JIAOTONG UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existence of uncertainty will bring potential risks to the economic dispatch of the system. The system may need to increase operating costs to adjust the output of energy supply equipment or even remove a certain amount of load to deal with this uncertainty.

Method used

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  • Comprehensive energy system optimal scheduling method considering conditional risk value
  • Comprehensive energy system optimal scheduling method considering conditional risk value
  • Comprehensive energy system optimal scheduling method considering conditional risk value

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Embodiment Construction

[0114] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific calculation examples.

[0115] The process of the present invention is as follows: first, establish the structural framework of the comprehensive energy system including the energy hub; secondly, establish an optimal dispatching mathematical model based on the coupling of the energy hub and the grid frame considering equipment constraints and multi-energy flow constraints; then, analyze the comprehensive energy The uncertainty of wind power output in the system is used to create scenarios; finally, the definitions, properties and calculation methods of value-at-risk VaR and conditional value-at-risk CVaR are clarified in detail, and a mathematical model for optimal scheduling of integrated energy systems is established based on conditional value-at-risk. Optimize scheduling for quantitative assessment of risk costs. Specifically include the followin...

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Abstract

The invention discloses a comprehensive energy system optimal scheduling method considering a conditional risk value. The method comprises the following steps: modeling equipment of a comprehensive energy system; constructing a basic optimization scheduling model of the comprehensive energy system based on the energy concentrator, wherein the objective function of the model is the minimum cost; constructing a scene-based two-stage scheduling random optimization model; and finally, establishing a comprehensive energy system optimal scheduling model considering the conditional risk value. According to the method, the minimum risk cost can be used as a target function to prevent the system from improving the large operation cost to deal with the uncertainty of the comprehensive energy system,and the risk can be prevented from being avoided blindly by solving the marginal risk cost. According to the method, the risk can be well reduced, the concept of marginal risk cost is provided on thebasis of the risk coefficient, and guidance is provided for finding out a scheduling mode capable of reducing the conditional risk value to the maximum extent by increasing the unit scheduling cost and judging whether the system needs to avoid the risk or not.

Description

technical field [0001] The invention belongs to the field of optimal scheduling of comprehensive energy systems, and relates to an optimal scheduling method of comprehensive energy systems considering conditional risk value. Background technique [0002] In order to alleviate the problems of energy shortage and environmental pollution, and build a clean, low-carbon, safe and efficient modern energy system, the concept of Energy Internet came into being. In 2011, American researcher Jeremy Rifkin mentioned Energy Internet for the first time in his "Third Industrial Revolution", which has epoch-making significance. At the same time, he also introduced the characteristics of the Energy Internet. There are three main aspects. One is the core technology, including renewable energy and the Internet; , to achieve fair trade in the energy market and efficient comprehensive utilization of energy types. The Energy Internet uses Internet technology to realize the two-way flow of ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/06H02J3/00H02J3/46
CPCG06Q50/06G06Q10/0635H02J3/008H02J3/466H02J2203/20H02J2300/28Y02E40/70Y04S10/50
Inventor 彭巧王秀丽齐世雄王志成李杰师婧王帅朱承治
Owner XI AN JIAOTONG UNIV
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