Feeder fault handling method

A fault handling method and feeder technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as large coupling degree, large difference, and difficulty in obtaining equipment parameters, so as to reduce power outage time, reduce power outage range, The effect of strong guidance

Active Publication Date: 2012-02-15
HUNAN ELECTRIC POWER CORP RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional feeder fault processing method is generally established on the power flow calculation module. The feeder fault processing module is highly coupled with advanced application modules such as distribution network power flow calculation, which increases the complexity of feeder fault processing, reduces the reliability of feeder fault processing, and affects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] (1) Use the feeder fault processing server to search online, and wait for 10 to 300 seconds after the feeder fault processing server receives the fault information sent by the FTU or the feeder outlet switch protection action information sent by the RTU in the substation. If new fault information or feeder outlet switch protection action information is received within the set waiting time, the waiting time will be reset to zero and the accumulated waiting time will start again.

[0022] (2) According to the records of the switches in the feeder line and the feeder outlet switch status before the fault occurs, use conventional methods to analyze the network topology and draw the network topology analysis conclusion;

[0023] (3) According to step (1) the fault information received from the FTU or the feeder outlet switch protection action information from the RTU in the substation and the conclusion of the network topology analysis obtained in step (2), use ...

Example Embodiment

[0029] Example 2:

[0030] (1) Use the feeder fault processing server to search online, and wait for 10 to 300 seconds after the feeder fault processing server receives the fault information sent by the FTU or the feeder outlet switch protection action information sent by the RTU in the substation. If no new fault information or feeder outlet switch protection action information is received within the set waiting time, use conventional methods to locate the feeder fault;

[0031] Steps (2) to (8) are the same as in Example 1.

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PUM

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Abstract

The invention introduces a feeder fault handling method, which comprises the following steps of: 1) conducting online search and locating a feeder fault; 2) conducting network topology analysis to draw a conclusion; 3) finding out the section of the fault; 4) searching for the boundary switch of the fault section and making a fault isolation plan; 5) defining non-fault power outage areas; 6) making power supply restoration plans for outage areas on the upstream side and the downstream side of the fault; 7) conducting safety evaluation to the downstream power supply restoration plan; and 8) executing the plans according to the safety evaluation obtained at the step 7. The feeder fault handling method has the advantages that: 1) the method is suitable for the automatic construction of feeders of a power distribution network which is wired in any way; 2) the practicability is high, the impedance parameters of the equipment of the distribution network are not required and the power flow calculation module is not required to be called; and 3) the power supply restoration can be separately conducted to the non-fault sections, so as to reduce the power outage range and decrease the poweroutage duration as much as possible.

Description

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Claims

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Application Information

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Owner HUNAN ELECTRIC POWER CORP RES INST
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