Distributed feeder automation recovery method based on line load rate and peer-to-peer communication

A feeder automation and peer-to-peer communication technology, which is applied to circuit devices, AC network circuits, emergency protection circuit devices, etc., can solve problems such as fixation, single fault recovery method, and insufficient comprehensive and flexible recovery methods

Pending Publication Date: 2022-03-08
ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, propose a distributed feeder automatic recovery method based on line load rate and peer-to-peer communication, solve the shortcomings of existing method fault recovery methods such as singleness and fixation, and existing recovery methods Issues that are not comprehensive enough and flexible enough

Method used

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  • Distributed feeder automation recovery method based on line load rate and peer-to-peer communication
  • Distributed feeder automation recovery method based on line load rate and peer-to-peer communication
  • Distributed feeder automation recovery method based on line load rate and peer-to-peer communication

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Embodiment Construction

[0041] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0042] A distributed feeder automatic recovery method based on line load rate and peer-to-peer communication, such as figure 1 shown, including the following steps:

[0043] Step 1: When there is a fault in the active distribution network line, use the differential algorithm of synchronous sampling to determine the fault section;

[0044] The concrete method of described step 1 is:

[0045] When there is a fault in the active distribution network line, the synchronous sampling differential algorithm is used to calculate and compare the capacitive current at both ends of the fault point, and the waveform curve of the fault current is reduced through a first-order low-pass filter, and then the 0.5 The s current waveform calculates the current phase angle after the fault occurs, and finally searches for the fault area according to the relationship b...

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Abstract

The invention relates to a distributed feeder automation recovery method based on a line load rate and peer-to-peer communication. The distributed feeder automation recovery method comprises the following steps: step 1, determining a fault section by adopting a synchronous sampling differential algorithm; step 2, outputting the information of the fault current to the intelligent power distribution terminal; step 3, removing a fault; and 4, obtaining a fault recovery strategy suitable for the active power distribution network, and clearing the fault. According to the real-time load rate of the line, the flexible fault recovery method is formulated and generated, and the power supply recovery capability of the distributed FA is improved.

Description

technical field [0001] The invention belongs to the technical field of intelligent distribution network feeder automation, and relates to a distributed feeder automatic recovery method, in particular to a distributed feeder automatic recovery method based on line load rate and peer-to-peer communication. Background technique [0002] As an important technical means to improve the reliability of power grid power supply, feeder automation technology can quickly locate the faulty section, isolate the faulty section and non-faulty section power supply after the distribution network fails, without or only a small amount of manual intervention Restoration can effectively reduce the power outage time of distribution network faults, thereby improving the reliability of power supply, and has been widely used in the current distribution network. As users have higher and higher requirements for power supply reliability, intelligent distributed FA relies on 5G communication network to s...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/26
CPCH02J13/00006H02J13/00026H02H7/262H02J2203/20Y02E60/00Y04S10/20Y04S40/12Y04S40/126
Inventor 张磐郑悦张腾飞刘明祥霍现旭李海龙杜明姚程张志朋尚学军于天一李达吴巨爱孙建东谭涛蔡月明
Owner ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO
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