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Active power distribution network dynamic reconstruction method containing distributed power supply

A technology of active distribution network and distributed power supply, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc.

Active Publication Date: 2019-07-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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Problems solved by technology

However, the massive access of DG also makes the distribution network change from a simple radiating passive network to a complex active network. also have varying degrees of impact

Method used

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  • Active power distribution network dynamic reconstruction method containing distributed power supply
  • Active power distribution network dynamic reconstruction method containing distributed power supply
  • Active power distribution network dynamic reconstruction method containing distributed power supply

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Embodiment

[0071] Such as figure 1 As shown, a dynamic reconfiguration method of an active distribution network with distributed power sources includes the following steps: S1 establishes different power flow calculation models according to the characteristics of different distributed power sources, and corresponds to different node types;

[0072] S2 establishes the active distribution network reconfiguration model, and establishes the optimization objective function based on the minimum sum of feeder losses;

[0073] S3 clusters the equivalent loads of the active distribution network based on the improved optimal fuzzy C-means clustering method, so that the dynamic reconstruction problem of the active distribution network is transformed into a static reconstruction problem with C representative load data as the clustering center;

[0074] S4 According to the characteristics of the model, the differential evolution invasive weed hybrid algorithm is used to solve the distribution network...

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Abstract

The invention relates to an active power distribution network dynamic reconstruction method containing a distributed power supply. The method comprises the following steps: 1) establishing different power flow calculation models corresponding to different node types according to the characteristics of different distributed power supplies; 2) establishing an active power distribution network reconstruction model, and establishing an optimized objective function based on the minimum sum of the feeder loss; 3) carrying out clustering on the equivalent load of the active power distribution networkon the basis of an improved optimal fuzzy C-means clustering method, so that the dynamic reconfiguration problem of the active power distribution network is converted into a static reconstitution problem of C representative load data as the clustering center; and 4) according to the model characteristics, using a differential evolution invasive weed mixed algorithm to solve a power distribution network reconstruction model containing a distributed power supply to obtain an optimal reconstruction scheme.

Description

technical field [0001] The invention relates to the field of distribution network reconfiguration, in particular to a method for dynamic reconfiguration of an active distribution network including distributed power sources. Background technique [0002] As an important development direction of power distribution technology, the active distribution network indicates that the future distribution network will become an organic system with active control and operation capabilities; it indicates that the future distribution network must meet the compatibility of various forms of distributed power Incorporate to achieve the purpose of extensive access and high penetration of DG in the distribution network. However, the massive access of DG also makes the distribution network change from a simple radiating passive network to a complex active network. also have varying degrees of impact. Therefore, it is of great significance to study the dynamic reconfiguration of distribution ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/381H02J2203/20Y02A30/60
Inventor 廖天明陈新陈海燕
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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