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Emergency response method for extreme event of complex energy interconnection system

A technology of energy interconnection and emergency response, applied in the field of system response, can solve problems such as complex dynamic response mechanism, difficulty in unified centralized scheduling, and inability to reflect dynamic characteristics

Inactive Publication Date: 2020-06-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Under market conditions, due to the barriers between subsystems, the complex energy interconnection system is difficult to be dispatched in a unified manner. It has the characteristics of multi-agent, distributed autonomy, and independent decision-making, making its dynamic response mechanism more complicated. Traditional joint simulation is mostly Based on a time section, it is impossible to reflect the dynamic characteristics of the system and between systems under extreme events, ignoring the dynamic coupling and iterative effects between subsystems; in addition, the co-simulation believes that each subsystem is centralized in decision-making, coordinated scheduling, regardless of the subject, It is only applicable to energy systems with a small range, and for complex energy interconnection systems with a large geographic area, the co-simulation model has certain limitations

Method used

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  • Emergency response method for extreme event of complex energy interconnection system

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Embodiment 1

[0093] The present invention provides an emergency response method for extreme events in complex energy interconnection systems, such as figure 1 shown, including the following steps:

[0094] S1: Based on the power transmission-gas network, connect the regional comprehensive energy system and build a complex energy interconnection system structure.

[0095] Such as figure 2 As shown, the complex energy interconnection system is centered on multi-energy interconnection and complementarity, including two levels of transmission network and distribution network. According to the decision-making subject and function, it can be divided into multiple subsystems, and each subsystem operates according to its own decision-making rules. The transmission network layer is composed of a large-capacity transmission network subsystem and a gas transmission network subsystem. The gas-fired power plant is used as a bridge to connect and is responsible for the long-distance transmission of en...

Embodiment 2

[0175] This embodiment is an example analysis:

[0176] (1) Calculation parameters

[0177] In this calculation example, the IEEE 30-node transmission network modified in MATPOWER is coupled with the Belgian 20-node natural gas grid through gas-fired power plants as the energy backbone Internet, which connects seven regional comprehensive energy hubs H1-H7 downward; the Belgian 20-node gas transmission network is as follows: Figure 7 As shown, it contains 20 nodes, 19 gas pipelines (17 passive pipelines and 2 active pipelines with compressors), and 6 gas source points S 1 ~S 6 , two gas-fired power plants G 1 , G 2 ; The modified IEEE30 node transmission network in MATPOWER is as follows Figure 8 As shown, the IEEE30 node transmission network includes 41 transmission lines, 11 power plants (4 coal-fired power plants C1-C4, 2 gas-fired power plants G1-G2, 5 wind farms W1-W5), and 2 gas-fired power plants They are respectively located at nodes 1 and 22, and are interconne...

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Abstract

The invention discloses an emergency response method for an extreme event of a complex energy interconnection system. The method comprises the following steps: constructing a complex energy interconnection system structure; based on system dynamics, decomposing the whole complex energy interconnection system into interacting subsystems, and establishing an internal dynamics model of each subsystem; describing a dynamic response behavior of the complex energy interconnection system under an extreme event, and establishing a response model; when the complex energy interconnection system encounters an extreme event, the response model automatically making a response decision and measures to make an emergency response. According to the method, the whole complex energy interconnection system isdecomposed into a plurality of interacting subsystems by means of a system dynamics model, qualitative and quantitative relations among variables are simulated and analyzed, complex system characteristics of multiple subjects, dynamic coupling and iteration are expressed, and dynamic response behaviors of the complex energy interconnection system under extreme events are described.

Description

technical field [0001] The invention relates to the technical field of system response, in particular to an emergency response method for extreme events in complex energy interconnection systems. Background technique [0002] In recent years, extreme events have occurred frequently, and the destruction of the energy system by extreme events will not only cause huge economic losses, but may also cause political and social impacts and even personal casualties; the new generation of energy systems has formed a backbone energy framework based on electricity-gas interconnection , Supplemented by a large amount of renewable energy and a multi-subject pattern of comprehensive terminal multi-energy supply, it is an intelligent, market-oriented, and distributed decision-making complex energy interconnection system; in order to reduce the negative impact of extreme events on the energy system, it is necessary to understand energy The characteristics of the system under extreme events,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/06H02J3/46G06F30/20G06F113/04
CPCH02J3/00H02J3/008H02J3/06H02J3/46Y02A30/60
Inventor 刘文霞黄钰辰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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