An active power distribution network short-circuit fault locating method
By disconnecting the DG connection in an active distribution network and using the DG to generate a transient current signal, and combining the signal peak ratio to determine the fault location, the problem of difficulty in locating faults in active distribution networks using traditional methods is solved, achieving efficient and accurate fault location.
CN116500381BActive Publication Date: 2026-07-24STATE GRID FUJIAN ELECTRIC POWER CO LTD +2
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID FUJIAN ELECTRIC POWER CO LTD
- Filing Date
- 2023-06-10
- Publication Date
- 2026-07-24
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Figure CN116500381B_ABST
Abstract
The application relates to a kind of active distribution network short-circuit fault locating methods. First, disconnect all DGs and lines on the distribution line after the line is tripped due to short-circuit fault;Subsequently, control a single DG to access the fault line for a short time to generate a transient current signal;Finally, use the monitoring points on the line to collect the transient current signal, upload the peak value of the transient current signal to the master station through the distribution automation system, and determine the fault location by the master station.
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