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Multi-agent-based power distribution network island fusion control system and control method

A multi-agent, fusion control technology, applied in power network operating system integration, information technology support systems, electrical components, etc., can solve the problem of not realizing automatic execution of multi-agent architecture, not considering multiple island connections and minimum switching times. And other issues

Pending Publication Date: 2022-08-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some have studied the multi-island restoration strategy, but seldom involve the impact of multi-type distributed power sources in the restoration process; some have considered the synergistic effect of various types of power sources in the multi-island restoration strategy, but Issues such as connections between multiple islands and the minimum number of switches during recovery are not considered
The policy execution in the above studies is also based on manual execution, and automatic execution based on the multi-agent architecture has not been realized.

Method used

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  • Multi-agent-based power distribution network island fusion control system and control method
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  • Multi-agent-based power distribution network island fusion control system and control method

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Embodiment 1

[0054] A multi-agent-based distribution network island fusion control system, such as figure 1 As shown in the figure, it includes a central agent (Central Agent, CA), a feeder agent (FA) and a bus agent (Load bus Agent, LBA); the central agent is distributed in each active distribution network substation. On the transformer, the feeder agents are distributed on each feeder, and the busbar agents are distributed on the load bus; the central agent and the feeder agents communicate with each other, and the feeder agents communicate with the busbar agents. The bus agents communicate with each other.

[0055] The bus agent is used to monitor and control components on the load bus, collect information on the load bus and react to various conditions.

[0056] The busbar agent is used to control the normally closed local switches on both sides of the local bus, and control them to open when necessary to isolate the busbar.

[0057] The bus agent is used to control the tie line swit...

Embodiment 2

[0102] Taking the IEEE-33 node power distribution system as an example, the calculation example is analyzed, and the standard IEEE-33 node power distribution system is appropriately modified, adding energy storage devices and distributed synchronous generators, and analyzing the recovery process of island fusion in the fault power distribution system advantages, such as figure 2 shown. In the calculation example, the distributed synchronous generators are divided into two categories: DG1, DG2 and DG4 are gas turbines, DG3 is a diesel generator, DG1 is located in island 1, DG2 is located in island 2, DG3 is located in island 3, and DG4 is located in island 4, the energy storage device is a battery. In this improved IEEE33 node power distribution system fault scenario, set 6 line faults that cannot be repaired in a short time, and are regarded as disconnected, respectively (main network, 1), (4, 5), (9, 10), (11 , 12), (20, 21), (26, 27), these faults divide the whole system ...

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Abstract

The invention discloses a power distribution network island fusion control system based on multiple intelligent agents. The system comprises a central intelligent agent, a feeder intelligent agent and a bus intelligent agent. The central intelligent agent is distributed on a transformer of each active power distribution network substation, the feeder intelligent agent is distributed on each feeder, and the bus intelligent agent is distributed on a load bus; the central intelligent agent and the feeder intelligent agents communicate with each other, the feeder intelligent agents and the bus intelligent agents communicate with each other, and the bus intelligent agents communicate with each other. According to the method, a distribution network environment of a current power-storage-charging power supply mode is considered, a mixed integer nonlinear model is used, power loss load minimization in a distribution network system is taken as a target, and safety capacity constraint, voltage frequency stability constraint and energy storage utilization are considered; and a set of multi-agent system capable of automatically executing island fusion operation is designed, so that high efficiency, automation and intelligence of island fusion of the distribution network are realized.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a multi-agent-based distribution network island fusion control system and a control method. Background technique [0002] With the increasing development of the power system, various distributed power sources and new distributed loads represented by electric vehicles are increasingly embedded in the power grid, resulting in a substantial increase in the penetration rate of renewable energy in the power grid, and the power control architecture is constantly changing. , The load characteristics are also increasingly diverse. In recent years, the number of smart grids on the distribution grid side has surged. However, due to the low inertia and instability of new power sources, the power flow becomes complicated when switching between on-grid and off-grid, and distributed power and load fluctuations are more difficult to predict. Sensitivity is more variable and protective devices will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46H02J3/18H02J3/32H02J3/14H02J13/00
CPCH02J3/381H02J3/388H02J3/466H02J3/18H02J3/32H02J3/144H02J13/00002H02J13/00016H02J2203/20H02J2300/40H02J2310/60Y04S20/222
Inventor 时珊珊凌晓波周健宋平张琪祁顾军崔勇程浩原艾芊
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO