Dynamic Clustering for Power Grid Visualization

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Solution Overview

Problem

Visualizing power grids with dozens or hundreds of power lines and control stations is challenging for human operators, as existing methods fail to provide a clear overview, leading to information overload and difficulty in discerning relevant data.

Innovation Solution

A dynamic clustering method that abstracts power grid features into larger entities, allowing operators to control the degree of abstraction, enabling the presentation of hundreds of stations and power lines as graphical symbols on an operator terminal, with the ability to move groups closer to or further from condensation points based on user selection or automatic changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If individual power lines and control stations are displayed in detail, then information completeness is improved, but visual clarity and overview capability deteriorate due to information overload

Engineering Contradiction:
Improveinformation completenessVSAvoidoverview capability
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The display is segmented into multiple hierarchical levels (individual stations, clusters of stations, regional groups). Operators can navigate between these segments to view appropriate detail levels. Each level maintains complete information for its scope while avoiding the information overload of displaying all details simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a hierarchical dimension to the visualization, allowing operators to navigate from individual station level up through multiple levels of clustering. This dimensional approach enables complete information to be organized in a structured manner that maintains overview capability while preserving access to detailed data when needed.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If dynamic clustering is implemented to improve overview, then visual clarity is improved, but access to detailed information may be lost

Engineering Contradiction:
Improvevisual clarityVSAvoidaccess to detailed information
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The clustering structure is dynamic and adjustable. Operators can modify cluster formations, expand clusters to see individual stations, or reconfigure clustering based on operational needs. This dynamic capability ensures that visual clarity is maintained while detailed information remains accessible when required.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a nested hierarchical structure where individual control stations are nested within clusters, which are nested within larger regional groups. This nesting allows operators to view clustered representations for overview while being able to expand any level to access detailed information about individual stations, preserving both visual clarity and information accessibility.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If multiple layers are added to hide or show different power line types, then information organization is improved, but visual complexity and difficulty in seeing trends increases

Engineering Contradiction:
Improveinformation organizationVSAvoidvisual complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Different visual properties and organizational approaches are applied to different parts of the display based on their functional importance and operational context. Critical power lines and stations receive enhanced visual treatment while less critical elements are integrated into clustered representations, reducing overall visual complexity while maintaining adaptability for different operational scenarios.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8560949B2Power grid visualization
Publication Date: 2013.10.15 HITACHI ENERGY LTD
  • US8560949B2 patent drawing
  • US8560949B2 patent drawing
  • US8560949B2 patent drawing

AI summary

A method in a power transmission or distribution system, an operator terminal in such a system as well as to a computer program product from such an operator terminal, wherein the operator terminal presents graphical objects representing electrical power transmission control stations together with graphical objects representing power lines on a display, and changes the degree of abstraction of the presentation based on an operator selection or an own selection. A change from a lower to a higher degree involves moving a group of graphical objects including control stations closer to a condensation center point on a power line that is common for this group, and a change from a higher to a lower condensation degree involves moving the group away from the condensation center point.