Power distribution network fault monitoring method

Abstract

The invention discloses a power distribution network fault monitoring method and relates to the field of power systems. The method comprises steps as follows: firstly, first system data in each faultmode of a power distribution network are tracked and measured in real time respectively in an experimental state, a first output data column and a first input matrix are acquired, and fault recognition parameters of each fault mode are solved; then, second system data in the actual operation mode are tracked and measured in real time, a second output data column and a second input matrix are acquired, and system operation recognition parameters of the power distribution network in the actual operation mode are solved; and finally, Euclidean distances between the system operation recognition parameters and each fault recognition parameter are solved, and the fault mode corresponding to the minimum value of the Euclidean distances is line fault of the power distribution network in current actual operation. On the basis of the provided scheme, fault of the power distribution network can be rapidly monitored, the fault mode of the power distribution network can be recognized, and the powerdistribution network is convenient to maintain.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a fault monitoring method for a distribution network. Background technique [0002] With the rapid development of my country's economy, the demand for electric energy and the requirements for electric energy quality are also increasing, and electric energy has become a necessity for the existence and development of society. However, due to the influence of various factors, power grid accidents still exist in some areas of our country. Power grid accidents not only have a large impact, fast speed, and serious consequences, but also directly affect the country's production and construction and people's living order. [0003] In the existing technology, the active signal injection method for fault monitoring of the distribution network identifies the faults of the distribution network, and the accuracy is high, but the cost also increases accordingly; the efficiency and accuracy of the ...

AI Technical Summary

Problems solved by technology

However, due to the influence of various factors, power grid accidents still exist in some areas of our country. Power grid accidents not only have a large impact, fast speed, and serious consequences, but also directly affect the production and construction of the country and the people's living order.

[0003] In the existing technology, the active signal injection method for fault monitoring of the distribution network identifies the faults of the distribution network, and the accuracy is high, but the cost is also correspondingly increased; the efficiency and accuracy of the traditional passive distribution network fault identification have room for improvement

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