Comprehensive energy system optimal scheduling method and system

A technology that integrates energy systems and optimizes dispatching. It is applied in the field of power systems and can solve problems such as inability to overcome complementary characteristics and insufficient interconnection and mutual aid capabilities of IES systems.

Active Publication Date: 2020-06-30
CHINA ELECTRIC POWER RES INST +3
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above-mentioned problems that the existing IES optimal dispatching technology does not fully utilize the complementary characteristics of different types of loads and the lack of interconnection and mutual assistance between IES systems, the present invention proposes an integrated energy system optimal dispatching method, The methods include:

Method used

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  • Comprehensive energy system optimal scheduling method and system
  • Comprehensive energy system optimal scheduling method and system
  • Comprehensive energy system optimal scheduling method and system

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Embodiment 1

[0081] Such as figure 1 Shown, the method flow diagram of the present invention is as follows:

[0082] Step 1: Bring the obtained matching degree of source-load characteristics of each integrated energy system into the pre-established system function allocation layer optimization model to obtain the cooling, heating, power supply and load distribution ratio of each integrated energy system;

[0083] Step 2: Based on each integrated energy system, bring the cooling, heating, power supply and load distribution ratio of the integrated energy system into the pre-established internal energy flow optimization model to obtain the unit output of the integrated energy system;

[0084] Step 3: Carry out overall scheduling of the integrated energy system based on the unit output of the integrated energy system.

[0085] Below in conjunction with specific embodiment, above-mentioned method step is done further explanation:

[0086] The instructions for step 1 are as follows:

[0087] ...

Embodiment 2

[0154] The present invention will be further described below through an embodiment.

[0155] The optimal scheduling method proposed in the present invention is verified by taking a specific operating scenario in a certain area as the research object. The energy load in this area is mainly divided into three categories: residential, commercial and industrial. There are three small integrated energy (IES) systems in the area, and the distribution structure of each IES system and load center is as follows: Figure 5 As shown, the internal structure of each IES system is as image 3 Table 1 shows the equipment capacity and other parameters of each system. Using MATLAB software to program the proposed optimal scheduling model, and select a typical day in winter as the regional optimal scheduling scenario, the optimal scheduling cycle is 24h, and the optimization step is 1h.

[0156] Table 1 Key parameters of each IES system equipment

[0157]

[0158]

[0159] For the thr...

Embodiment 3

[0172] The present invention also relates to an integrated energy system optimization scheduling system, including:

[0173] Source-load characteristic matching degree acquisition module: used to bring the obtained source-load characteristic matching degree of each integrated energy system into the pre-established system function distribution layer optimization model, and obtain the cooling, heating, power supply and load of each integrated energy system distribution ratio;

[0174] Unit output acquisition module: based on each integrated energy system, it is used to bring the cold, hot, electricity supply and load distribution ratio of the integrated energy system into the pre-established internal energy flow optimization model to obtain the unit of the integrated energy system Contribute;

[0175] Scheduling module: used for overall scheduling of the integrated energy system based on the unit output of the integrated energy system.

[0176] The source-load feature matching...

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Abstract

The invention relates to a comprehensive energy system optimization scheduling method and system. The method comprises the steps that the obtained source load characteristic matching degree of each comprehensive energy system is substituted into a pre-established system function distribution layer optimization model, the cooling, heating and power supply amount and the load distribution ratio of each comprehensive energy system are obtained, and overall scheduling is conducted on the comprehensive energy systems on the basis of unit output of the comprehensive energy systems. The invention discloses an optimal scheduling method and system for a comprehensive energy system. According to the optimal scheduling method, the economical efficiency is ensured, the characteristics of the two sidesof the source load can be taken into consideration, the complementary characteristics of different types of loads and the interconnection and mutual aid capacity of all comprehensive energy systems are brought into full play, collaborative optimization scheduling of the multiple comprehensive energy systems in the region is achieved, and compared with a traditional optimization operation mode, the method has higher operation benefits.

Description

technical field [0001] The present invention relates to the field of electric power systems, in particular to integrated energy optimization technology, and in particular to an integrated energy system optimization scheduling method and system. Background technique [0002] Energy is the basis for human survival and development, and the driving force for social development. With the deep penetration of global energy and the rapid development of information and communication technology, energy utilization is developing in the direction of multi-energy coordination and complementarity, and the Energy Internet has become the inheritance and development direction of multiple energy networks. As an important carrier of the Energy Internet, the Integrated Energy System (IES) integrates a variety of distributed energy systems including combined cooling, heating and power energy stations, renewable energy power generation systems, etc., to improve the comprehensive utilization of en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46G06Q10/06G06Q50/06
CPCH02J3/008H02J3/46G06Q10/06312G06Q50/06Y04S10/50Y02E40/70
Inventor 唐艳梅闫华光刘铠诚覃剑郭炳庆钟鸣蒋利民郑爱霞崔高颖何桂雄金璐李克成成岭
Owner CHINA ELECTRIC POWER RES INST
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