Power distribution network fault monitoring device installation position determination method and system

A distribution network fault, installation location technology, applied in the direction of fault location, measuring device, information technology support system, etc., can solve problems such as failure of fault location device, inconsistent length of section lines, interference, etc., to achieve optimal determination and effective recognition effect

Inactive Publication Date: 2020-07-14
SHANDONG UNIV OF TECH
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Problems solved by technology

[0002] There are many branch lines in my country's distribution network, the length of the section line is inconsistent, and there are many types of loads at the end of the line. In order to monitor the distribution network fault, it is necessary to install a fault monitoring device in the network, and due to factors such as maintenance, cost, and monitoring efficiency It is impossible to install monitoring devices at every branch node and load access point of the whole network. In order to realize the observable faults of the whole network, the current fault monitoring devices are generally installed at the end of the line and each branch line.
The main problem of this installation is: due to the complex structure of the distribution network, when the transient high-frequency signal generated by the fault has undergone multiple refraction and reflection at the br

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  • Power distribution network fault monitoring device installation position determination method and system
  • Power distribution network fault monitoring device installation position determination method and system
  • Power distribution network fault monitoring device installation position determination method and system

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[0066] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0067] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Description...

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Abstract

The invention discloses a power distribution network fault monitoring device installation position determination method and system. The method comprises the following steps: carrying out matrix standardization processing on an SCADA data set of the fault monitoring device; performing singular value decomposition processing on the standardized data matrix; calculating a covariance matrix of the data set; calculating a composite index and a composite index threshold; determining the installation position of the fault monitoring device according to whether the composite index is within the composite index threshold range. The method achieves the recognition of the sensitive position of the power distribution network to the state change, and achieves the optimal determination and effective recognition of the installation position of the fault monitoring device of the power distribution network.

Description

technical field [0001] The invention relates to a method and system for determining the installation position of a distribution network fault monitoring device, belonging to the technical field of distribution network fault monitoring. Background technique [0002] There are many branch lines in my country's distribution network, the length of the section line is inconsistent, and there are many types of loads at the end of the line. In order to monitor the fault of the distribution network, it is necessary to install a fault monitoring device in the network. Due to factors such as maintenance, cost, and monitoring efficiency It is impossible to install monitoring devices at every branch node and load access point of the whole network. In order to realize the observability of faults in the whole network, fault monitoring devices are generally installed at the end of the line and each branch line at present. The main problem of this installation is: due to the complex structur...

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Application Information

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IPC IPC(8): G01R31/08G06F17/18
CPCG01R31/086G01R31/088G06F17/18Y04S10/52
Inventor 刘洋王蕾胡明峰徐丙垠张新慧陈羽赵艳雷
Owner SHANDONG UNIV OF TECH
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