Optimized configuration method of voltage sag monitoring node
A technology for monitoring nodes and optimizing configuration, which is applied in the direction of fault location, etc.
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[0058] When a short-circuit fault occurs in a power grid component, the fault resistance exists widely and objectively, and its resistance value is affected by factors such as the type of short-circuit medium, the distance between phases, and the conductivity of the ground, and often presents strong random and uncertain characteristics. From the optimal configuration method of the traditional voltage sag monitoring node described in the background art, it can be seen that the assumption of the optimal configuration of the monitoring node based on the MRA principle is that the fault resistance value of the short-circuit fault point must be zero.
[0059] The fault resistance value has a significant impact on the voltage sag amplitude of the short-circuit fault point. The larger the fault resistance value is, the smaller the MRA range corresponding to each monitoring node is. If the monitoring node is configured in the whole network based on the optimal configuration method of th...
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