Energy management method of integrated energy system considering multi-agent benefit balance

A technology of integrated energy system and energy management, applied in system integration technology, information technology support system, communication network with energy trade/energy transmission authority, etc. Consideration of multi-stakeholder coexistence scenarios, etc.

Active Publication Date: 2021-01-26
STATE GRID SICHUAN ECONOMIC RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Most of the existing research is to optimize the integrated energy system from the perspective of overall optimality, which lacks the consideration of the coexistence of multiple stakeholders and pursues the overall optimal The process may cause a serious damage to the interests of a certain party, which is not conducive to the sound development of all subjects in the comprehensive energy system

Method used

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  • Energy management method of integrated energy system considering multi-agent benefit balance
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  • Energy management method of integrated energy system considering multi-agent benefit balance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Comprehensive Energy System Model Containing Multiple Agents

[0068] Integrated Energy Agent (IEA) Model:

[0069] IEA benefit function

[0070] IEA has a variety of energy production and conversion equipment. It can sell energy to users in the IES by purchasing energy from the external network and its own production capacity, or sell energy to the external network under the premise of meeting the needs of local users, so as to obtain income. Considering the large heat and cold energy transmission loss, immature P2G technology and high cost, only consider the situation where IEA sells electric energy to the network. The benefit function of the IEA is:

[0071]

[0072] In the formula, the first item after the equal sign in the first line indicates the energy sales income of the IEA’s sales of cooling and heating power to users and electricity sales to the distribution network, and the second item indicates the subsidy income of wind power grid grid under the suppo...

Embodiment 2

[0148] Such as figure 1 As shown, in order to verify the effectiveness of the comprehensive energy system energy management method considering the multi-subject benefit balance given in this patent, this patent uses an integrated energy system as a calculation example for analysis.

[0149] scene description

[0150] Taking a business park as an example, the equipment and related parameters of each subject in the park are shown in Table 1. The park’s cooling, heating, power load and wind power output are as follows: Figure 5 As shown, the energy price of the external energy supply network and the internal energy price of the integrated energy system are as follows: Figure 6 shown.

[0151] Table 1 Relevant parameters of each subject in the park

[0152]

[0153] 2Optimization results

[0154] 2.1 Iterative convergence results

[0155] Figure 7 The convergence process of system benefit disequilibrium degree is given, by Figure 7 It can be seen that the result of ...

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Abstract

According to the energy management method of the integrated energy system considering multi-agent benefit balance provided by the invention, the situation that multiple benefit agents possibly coexistin the integrated energy system is considered, and the integrated energy system is divided into three agents including an integrated energy supply agent (IEA), an energy storage agent (ESA) and a user cluster agent (UA) by taking 'source load storage' as a clue, and a corresponding benefit model is built; an energy management center-based multi-agent-containing comprehensive energy system operation mechanism is designed, so that orderly transmission of energy flow, economic flow and information flow among the agents is realized; a coordinated energy management strategy based on the system benefit imbalance degree is provided, benefit balance between the main bodies is considered while the main bodies pursue the maximum benefits of themselves, and the benefit of the main body of one side is prevented from being sacrificed under the condition that the global benefit serves as the target.

Description

technical field [0001] The invention relates to the technical field of energy management, in particular to an energy management method of an integrated energy system considering the balance of interests of multiple subjects. Background technique [0002] With the depletion of fossil energy, environmental pollution and energy crisis, how to develop renewable energy technology and build a modern energy system with multi-energy complementarity and energy cascade utilization is an important way to achieve energy transformation and energy structure adjustment. As a new type of energy integrated open system, the integrated energy system breaks the traditional mode of independent operation of a single energy system, supports the comprehensive supply of multiple types of energy, the system integration of multiple energy networks, and the access of massive distributed equipment. The characteristics of energy coupling are conducive to realizing efficient energy utilization, satisfying...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/00H02J3/46
CPCG06Q10/04G06Q10/06315G06Q50/06H02J3/008H02J3/46H02J2203/20Y04S10/50Y02E40/70Y04S50/16
Inventor 王海燕任志超叶强程超徐浩邓盈盈胥威汀汪伟
Owner STATE GRID SICHUAN ECONOMIC RES INST
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