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Phase group estimation device, phase group estimation method, and phase group estimation program

A technology of measuring device and phase group, applied in the direction of measuring device, phase sequence/synchronization indication, measuring electrical variables, etc., which can solve the problems of which connection method cannot be managed, and it is difficult to determine the scope of influence.

Active Publication Date: 2019-11-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • 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 phase group estimation program
  • Phase group estimation device, phase group estimation method, and phase group estimation program
  • Phase group estimation device, phase group estimation method, and phase group estimation program

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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

A phase group estimation device (10) according to the present invention is provided with a data acquisition unit (11) for acquiring data transmitted from smart meters, a storage unit (15) for storingequipment information indicating the correspondence between smart meters and pole transformers corresponding to the smart meters, and a phase group estimation unit (13) for grouping, on the basis of the equipment information and data, each processing section corresponding to a pole transformer into a phase group to which power is supplied from distribution lines of the same phase.

Description

technical field [0001] The present invention relates to a phase group estimation device, a phase group estimation method, and a phase group estimation program 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 unit obtains one of the following three connection methods, namely: the first connection method for connecting to U-phase and V-phase, and the first connection method for connecting to V-phase The second connection method to the W phase, and the third conn...

Claims

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Application Information

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