Display Device and Display Method of Electric Power System Information

• US 20150054830A1
• Filed: 02/21/2012
• Published: 02/26/2015
• Est. Priority Date: 02/21/2012
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Inuzuka, Tatsuki, Matsubara, Takashi, Kurosawa, Yuichi, Tsukijishin, Kenta, Kobayashi, Hideyuki
• Granted Patent: US 10,090,704 B2
• Time in Patent Office: Days
• US Class Current: 345/440
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: H02J 13/00 Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: Y04S 10/40 Display of information, e.g. of data or controls

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.

Claims

1. A display device of electric power system information comprising:

a display unit including a display screen; and

a screen display control unit for controlling the display unit,

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 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, which is a monitoring target, on the display cells on the display screen,

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,

wherein the electric power system, 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, which is the monitoring target, and the mapping display items are displayed per display cell with different colors in accordance with the values of the corresponding state quantities.

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 electric power system diagram display function unit displays the state quantities of the power distribution system on the electric power system diagram, and

wherein the mapping item display function unit 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 unit 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 one of state quantities is a state quantity of any of the voltage distribution, temperature distribution, solar radiation amount distribution, distributed electric power source distribution, and power consumption distribution per consumer, and the state quantity includes a predicted value in the future.

8. 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.

9. The display device of electric power system information according to claim 2,

wherein the power distribution system, which is a monitoring target, includes a monitoring/controlling device for 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.

12. The display device of electric power system information according to claim 1, further comprising a function for processing information displayed on the display unit 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 unit including a display screen; and

a screen display control unit for controlling the display unit,

wherein a microgrid, which is a monitoring target, includes a monitoring/controlling device for 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 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 in the microgrid on the display cells on the display screen,

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,

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, and the mapping display items are displayed per display cell with different colors in accordance with the corresponding values of state quantities.

11. The display device of electric power system information according to claim 10,

wherein the electric power system of the microgrid 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 electric power system diagram display function unit displays the state quantities of the power distribution system on the electric power system diagram, and

wherein the mapping item display function unit displays the state quantities about the power distribution lines, the incoming lines, and the consumers per display cell.

13. A display method of electric power system information, the display method being executed by a display unit including a display screen;

and a screen display control unit for controlling the display unit,

wherein the display screen includes a first display area located in the middle part and a second display area located in the peripheral part,

wherein the first display area 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, in the first display area, an embodied energy system diagram and a plurality of spots, which are selectably disposed on the energy system diagram, are displayed,

wherein, in the second display area, an energy distribution between at least two points selected out of the spots on the energy system diagram is displayed, and

wherein, in the first display area, energy states around the plurality of spots are displayed with different colors in accordance with the corresponding values of state quantities in the background of the energy system diagram using the plurality of display cells.

14. The display method of electric power system information according to claim 13,

wherein at least a voltage distribution, a temperature, a solar radiation amount are selectably displayed on a display selection menu as an item to be displayed on the display cells in the first display area, and

wherein the energy states around the plurality of spots are displayed in response to an item selected on the display selection menu using the plurality of display cells.

15. The display method of electric power system information according to claim 14,

wherein, as a display method for displaying the energy system diagram on the display cells, there are two methods that can be switched to each other using the display selection menu:

one is a method in which a real system diagram, which is processed by an electric power system control device and an electric power system simulation device, and the energy system diagram on a simulator are displayed on the basis of a coordinate system on a virtual map, and

the other is a method in which a real system diagram on the virtual map and an electric power system diagram on the simulator are respectively converted into a real system diagram and an electric power system diagram on the coordinate system of a real map to be displayed.