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Phase group estimation device, phase group estimation method, and recording medium

A technology of measuring devices and phase groups, which is applied in the directions of measuring devices, measuring electrical variables, and measuring time integration, etc. It can solve the problems of unable to manage which connection mode and difficult to determine the scope of influence, etc.

Active Publication Date: 2021-12-10
MITSUBISHI ELECTRIC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The connection method of each pole-mounted transformer depends on each process of installing the pole-mounted transformer. Since it cannot be managed as a whole, it is also impossible to manage the connection method of each load connected to each pole-mounted transformer.
Therefore, when a disconnection occurs in the distribution line of a certain phase, it is difficult to determine the extent of the influence caused by the disconnection.

Method used

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  • Phase group estimation device, phase group estimation method, and recording medium
  • Phase group estimation device, phase group estimation method, and recording medium
  • Phase group estimation device, phase group estimation method, and recording medium

Examples

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Embodiment approach

[0029] figure 1 It is a diagram showing a configuration example of a smart meter system to which the phase group estimation device according to the embodiment of the present invention is connected. The smart meter system of this embodiment includes a smart meter network, a head end system (HES: Head End System) 7 and a meter data management system (MDMS: Meter Data Management System) 8 . like figure 1 As shown, the phase group estimation device 10 of this embodiment is connected so as to be communicable with the MDMS8. Alternatively, the phase group estimation device 10 of this embodiment may also be configured as one application software of the MDMS8.

[0030] The smart meter network includes smart meters 1-1 to 1-13. figure 1 In the illustration, 13 smart meters are shown, but the number of smart meters is not limited to figure 1 In the example shown, several units are also possible. Hereinafter, when the smart meters 1-1 to 1-13 are shown without distinction, they are ...

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Abstract

The phase group estimation device (10) according to the present invention includes: a data acquisition unit (11) that acquires data sent from a smart meter; and stores device information indicating the correspondence between the smart meter and the pole-mounted transformer corresponding to the smart meter and based on the equipment information and data, for the section corresponding to each pole-mounted transformer, that is, the processing section, classify the processing section into a phase group estimation of a phase group that supplies power from a power distribution line of the same phase Department (13).

Description

technical field [0001] The present invention relates to a phase group estimation device, a phase group estimation method, and a recording medium for estimating a phase group to which each section of a power distribution line belongs. Background technique [0002] In the past, in the multi-phase AC power distribution system, there was usually no management on which phase of the power distribution line each pole-mounted transformer was connected to. Hereinafter, pole-mounted transformers and loads connected to the same phase are referred to as pole-mounted transformers and loads belonging to the same phase group, respectively. For example, in a three-phase 3-wire distribution line, the pole-mounted transformer obtains one of the following three connection modes, namely: the first connection mode connected to U-phase and V-phase, the first connection mode connected to V-phase and V-phase The second connection form of the W phase, and the third connection form of the W phase an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/18
CPCG01R29/18G01R22/063G01R11/40G01R11/25
Inventor 古田裕久北村圣一
Owner MITSUBISHI ELECTRIC CORP
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