Display device and display method of electric power system information

Patent metadata

Field	Value
Publication number	US-10090704-B2
Application number	US-201214377021-A
Country	US
Kind code	B2
Filing date	Feb 21, 2012
Priority date	Feb 21, 2012
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A display device of electric power system information comprises a display unit including a display screen; and a screen display control unit for controlling the display unit. The display screen includes a display area that is divided into a plurality of display cells each of which has a mapping function for showing relative positional relations. The display unit includes an electric power system diagram display function unit for displaying an electric system diagram that embodies the state of an electric power system being a monitoring target, a mapping item display function unit for displaying mapping display items in the background of the electric power system diagram using the display cells, and a menu display function for displaying menus and icons, which are used for selecting the mapping display items, on the display screen, and for accepting selection operations to the menus and icons on the display cells on the display screen. The mapping display items represent information of state quantities regarding the state of the electric power system being the monitoring target, and the mapping display items are displayed per display cell with different colors in accordance with the corresponding values of state quantities.

First claim

The invention claimed is:

1. A display device of electric power system information comprising:
a display device including a display screen; and
a screen display controller programmed to control the display device,
wherein the display screen includes a display area that is divided into a plurality of display cells each of which has a mapping function for showing relative positional relations,
wherein the display device is configured to display
an electric power system diagram that embodies the state of an electric power system, which is a monitoring target, on the display cells on the display screen,
mapping display items in the background of the electric power system diagram using the display cells, and
menus and icons, which are used for selecting the mapping display items, on the display screen,

wherein the electric power system, which is the monitoring target, includes distributed electric power sources,
wherein the mapping display items represent information of state quantities regarding the state of the electric power system, which is the monitoring target, the state quantities are superimposed onto the electric power system diagram using the display cells that display the relative positional relations, and the mapping display items are displayed per display cell with different colors in accordance with the values of the corresponding state quantities, and
wherein the state quantities include voltage distribution, temperature distribution, solar radiation amount distribution, distributed electric power source distribution, and power consumption distribution per consumer, and predicted future values thereof.

2. The display device of electric power system information according to claim 1 , wherein the electric power system includes a power distribution system having power distribution lines and incoming lines,
wherein the mapping display items include information about the state quantities of the power distribution lines and information about positional relations of the power distribution lines, information about the state quantities of the incoming lines and information about positional relations of the incoming lines, and information about the state quantities of consumers connected to the incoming lines and information about positional relations of the consumers,
wherein the state quantities of the consumers include information about the distributed electric power sources,
wherein the display device displays the state quantities of the power distribution system on the electric power system diagram, and
wherein the display device displays the state quantities about the power distribution lines, the incoming lines, and the consumers per display cell.

3. The display device of electric power system information according to claim 2 , wherein the electric power system diagram displays the state of the electric power system, which is the monitoring target, in a hierarchical structure, and the electric power system comprises at least one high-voltage system, and a plurality of low-voltage systems belonging to the high-voltage system,
wherein, in the lowest level of the hierarchical structure, one low-voltage system forming the power distribution system and a final consumer coupled to the low-voltage system are displayed so as to corresponds to each other one-on-one per display cell, and
wherein, in the middle level of the hierarchical structure, information about the state quantities and information about the positional relations of the lowest level are displayed in a degenerate form.

4. The display device of electric power system information according to claim 2 , wherein the display device has a function to superimposedly display the system lines of the electric power system and a plurality of display elements, which is used for selection of the genesis phenomena in the electric power system, onto the electric power system diagram,
wherein at least one of the voltage, current, and phase of the electric system can be selected as a state of the electric power system, and
wherein, on the basis of the fact that at least one of the display elements is selected, information included in the display element is superimposedly displayed onto the electric power system.

5. The display device of electric power system information according to claim 2 , wherein the power distribution system, which is the monitoring target, is a power distribution system in an electric power system simulation device, and
wherein the electric power system simulation device includes a simulation control unit, simulation models having the model of the electric power system, a database, and an operator terminal having the display screen.

6. The display device of electric power system information according to claim 5 , wherein the power distribution system, which is the monitoring target, is an electric power system control device which takes control over a power distribution system of a real system and into which the electric power system simulation device is incorporated, and
wherein the electric power system control device includes a real system online monitoring/controlling program and the operator terminal having the display screen, and is configured to be able to control the power distribution system of the real system which is a controlling target.

7. The display device of electric power system information according to claim 2 , wherein, as for displaying the different colors, if the values of the state quantity colors are strong or high, the colors are displayed by warm colors, and if the values of state quantities are weak or low, the colors are displayed by cool colors.

8. The display device of electric power system information according to claim 2 , wherein the power distribution system, which is a monitoring target, includes a controller that monitors and controls independent distributed electric powers, and
wherein the mapping item display function unit displays SVRs or PCSs installed along the power distribution lines, and makes the displays of SVRs or PCSs function as icons for operation inputs.

9. The display device of electric power system information according to claim 1 , further comprising a function for processing information displayed on the display device and a function for browsing the processed information via a communication network in a functionally-distributed way.

10. A display device of electric power system information comprising:
a display device including a display screen; and
a screen display controller programmed to control the display device, wherein a microgrid, which is a monitoring target, includes a controller that monitors and controls independent distributed electric powers,
wherein the display screen includes a display area that is divided into a plurality of display cells each of which has a mapping function for showing relative positional relations in the microgrid,
wherein the display device is configured to display an electric power system diagram that embodies the state of an electric power system in the microgrid on the display cells on the display screen,
mapping display items in the background of the electric power system diagram using the display cells, and
menus and icons, which are used for selecting the mapping display items, on the display screen and for accepting selection operations to the menus and icons,

wherein the microgrid, which is the monitoring target, includes distributed electric power sources, and
wherein the mapping display items represent information of state quantities regarding the state of the electric power system of the microgrid, which is the monitoring target, the state quantities are superimposed onto the electric power system diagram using the

Assignees

• Inuzuka Tatsuki
• Matsubara Takashi
• Kurosawa Yuichi
• Tsukijishin Kenta
• Kobayashi Hideyuki
• Hitachi Ltd

Inventors

• Inuzuka Tatsuki
• Matsubara Takashi
• Kurosawa Yuichi
• Tsukijishin Kenta
• Kobayashi Hideyuki

Classifications

• G06T11/26

  Drawing of charts or graphs · CPC title

• H02J13/10

  characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems · CPC title

• Y04S10/40

  Display of information, e.g. of data or controls · CPC title

• H02J13/00 Primary

  Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network · CPC title

• H02J13/333 Primary

  the equipment forming part of substations · CPC title