Fault positioning method and system based on positive sequence voltage distribution characteristics
A positive-sequence voltage, fault location technology, applied in the fault location, fault detection according to conductor type, measurement of electricity and other directions, can solve the problems of distance measurement result error, low voltage curve steepness, etc., to reduce the range of positioning error, obvious characteristics , improve reliability and accuracy
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[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0060] like figure 1 As shown, the embodiment of the present invention provides a fault location method based on positive sequence voltage distribution characteristics, including:
[0061] S1. Perform real-time detection on the distribution network, and extract the positive sequence voltage, positive sequence current, line impedance and admittance parameters at both ends of the line at the time...
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