Intelligent power distribution network fault recovery method based on organism immune mechanism

A technology for intelligent distribution network and distribution network faults, applied in biological models, artificial life, electrical components, etc., can solve the problem that the online decision-making plan generation speed is difficult to achieve rapid recovery of faults, and achieve the effect of improving the response speed.

Active Publication Date: 2021-05-28
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Claims
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AI Technical Summary

Problems solved by technology

With the increase of the scale of the distribution network and the increase of the types of internal power sources, the generation speed of the online decision-making scheme is difficult to meet the requirements of fast fault recovery

Method used

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  • Intelligent power distribution network fault recovery method based on organism immune mechanism
  • Intelligent power distribution network fault recovery method based on organism immune mechanism
  • Intelligent power distribution network fault recovery method based on organism immune mechanism

Examples

Experimental program
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Effect test

Embodiment

[0115] On the basis of an actual distribution network, by adding distributed power sources, a system such as Figure 4 The simulation example shown includes 3 feeders and 31 nodes. The specific access locations and capacities of distributed power sources are shown in Table 2:

[0116] Table 2 Distributed power access location and capacity

[0117]

[0118] Nodes 13, 15 and 28 are all equipped with energy storage systems with a rated capacity of 1.2MW h and a maximum charging and discharging power of 0.6MW.

[0119] Feeder 1 and feeder 3 are mainly residential loads, with a total of 120 and 90 households respectively. Feeder 2 is industrial load, with a total of 30 households. The load levels are shown in Table 3:

[0120] Table 3 Node load level parameters

[0121]

[0122] Each branch of feeder 1 is connected by overhead line, the impedance is 0.63+j0.368Ω / km, the allowable carrying capacity of the overhead line is 210A, the failure rate is 0.23 times / kma, and the fau...

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Abstract

The invention relates to an intelligent power distribution network fault recovery method based on an organism immune mechanism, and the method specifically comprises the following steps: S1, an immune recognition module obtains information of a power distribution network through monitoring, judges the fault state, and extracts a characteristic quantity; S2, an immune matching module matches the characteristic quantity with a characteristic quantity in a fault state recorded in a power distribution network fault characteristic library in an immune memory module, if matching succeeds, the step S3 is executed, or otherwise, the step S4 is executed; S3, an immune response module performs secondary power grid fault response and executes a corresponding fault recovery scheme; S4, the immune response module performs primary power grid fault response, judges whether a fault downstream load has an interconnection switch for transfer, if so, performs load transfer and checks power flow, or otherwise, performs island division on a fault downstream area; and S5, a fault recovery scheme is generated according to the fault processing flow in the step S4, and the fault recovery scheme is recorded to a grid fault feature library. Compared with the prior art, the method has the advantages of improving the response speed of power grid fault recovery and the like.

Description

technical field [0001] The invention relates to the technical field of restoring power supply after a fault occurs in a distribution network, in particular to an intelligent distribution network fault recovery method based on a biological immune mechanism. Background technique [0002] With the development of the economy, users have higher and higher requirements for the reliability of power supply. Distribution network faults account for 80% of power system faults, and the distribution network is the key link between the load and the upper-level power grid to ensure the safety of the distribution network Reliable operation is critical. The immune mechanism of organisms can quickly and effectively deal with external invading pathogens. The handling of distribution network failures is very similar to the immune response of organisms to pathogens. fit. [0003] In the prior art, there have been a large number of researches on power supply restoration after a distribution net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00G06Q10/06G06Q10/00G06Q50/06G06N3/00G06K9/62
CPCH02J3/001G06Q10/0635G06Q10/20G06Q50/06G06N3/006H02J2203/20G06F18/23213
Inventor 李振坤何苗季亮苏向敬符杨田书欣米阳
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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