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Self-healing control method and device for power distribution network based on rough set dynamic programming model

A technology of self-healing control and dynamic programming, applied in circuit devices, electrical components, AC network circuits, etc.

Active Publication Date: 2019-12-13
STATE GRID SHANDONG ELECTRIC POWER CO SHOUGUANG POWER SUPPLY CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]Aiming at the problem of how to quickly and effectively act on the corresponding switches to quickly restore the load power consumption in non-faulty areas, the present invention provides a dynamic programming model based on rough sets Distribution network self-healing control method and device

Method used

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  • Self-healing control method and device for power distribution network based on rough set dynamic programming model
  • Self-healing control method and device for power distribution network based on rough set dynamic programming model
  • Self-healing control method and device for power distribution network based on rough set dynamic programming model

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Embodiment 1

[0100] Such as figure 1 As shown, the technical solution of the present invention provides a distribution network self-healing control method based on a rough set dynamic programming model, including the following steps:

[0101] Step 1: Establish a self-healing control model of distribution network with multi-objective optimization;

[0102] In the step 1, a self-healing control model of the distribution network with multi-objective optimization is established. The restoration and reconstruction model of the smart distribution network provides power after a distribution network failure. In fact, under the basic conditions of a reasonable distribution of load capacity, the algorithm is used to reconstruct the transmission line of electric energy, and the abnormal expected power outage load is allocated to the normal load as reasonably as possible. operating distribution network. When the power distribution fault is eliminated and the system is back on track, switches and cir...

Embodiment 2

[0176] The technical solution of the present invention provides a distribution network self-healing control device based on a rough set dynamic programming model, including a self-healing control model creation module, a data processing module, a fault location module and a self-healing control module;

[0177] The self-healing control model creation module establishes a self-healing control model for multi-objective optimization of the distribution network;

[0178] The data processing module uses the rough set theory to reduce the data knowledge of the power grid data; the data processing module includes a data acquisition unit, a data normalization processing unit, a calculation unit, and a judgment unit; the data acquisition unit, according to the power grid structure and fault The power grid information before the power outage is used to collect data and establish a judgment matrix; the data normalization processing unit performs normalization preprocessing on the data to ...

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Abstract

The invention provides a self-healing control method and device for a power distribution network based on a rough set dynamic programming model. The self-healing control method comprises the steps ofstep 1, establishing a multi-objective optimized power distribution network self-healing control model; 2, performing data knowledge reduction on power grid data by applying a rough set theory; 3, performing fault location through evaluation function calculation and non-fault section search; and step 4, rapidly obtaining an optimal self-healing scheme of the intelligent power distribution networkto control fault self-healing. The self-healing control method for the power distribution network based on the rough set dynamic programming model is provided for solving the problem of how to quicklyrecover the load power consumption of a non-fault area after a fault of the power distribution network occurs, the rough set theory is adopted to process various incomplete information such as inaccuracy, inconsistency and incompleteness in the fault self-healing process, implicit knowledge and potential rules are found by directly analyzing and reasoning data, and the self-healing recovery speedof the system is improved.

Description

technical field [0001] The invention relates to a distribution network fault self-healing control method, which belongs to the field of distribution network control and operation, and in particular to a distribution network self-healing control method and device based on a rough set dynamic programming model. Background technique [0002] Smart grid is mainly composed of smart transmission network and smart distribution network. At present, my country has made some achievements in building a strong and reliable smart transmission network, but the power supply reliability of the distribution network is relatively low. Since the distribution network is directly oriented to end users, the diversity of user types and power loads determines the complexity of the distribution network. Self-healing control technology is one of the core contents of smart distribution network. When a fault occurs in the distribution network, self-healing control technology can quickly diagnose, loca...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 张成龙王效平刘军田兴华王建鹏张美玲
Owner STATE GRID SHANDONG ELECTRIC POWER CO SHOUGUANG POWER SUPPLY CO
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