Power Node Carbon Intensity Mapping on Grid Topology
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Solution Overview
Problem
Existing methods for monitoring carbon emissions in the power industry only provide regional carbon intensity, failing to track and trace carbon emissions at individual power nodes due to low particle size analysis.
Innovation Solution
A method and apparatus for calculating and displaying node carbon intensity at power nodes within a power system by processing power flow data based on a carbon balance relationship, using a topological graph to visually represent carbon flow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If regional carbon intensity calculation is used based on net power generation amount and fuel consumption, then the monitoring scope covers the entire power industry, but the analysis granularity is low and individual power node tracking is lost
Solution Approach 1:
The patent segments the power system into discrete power nodes (power stations, transmission stations, load stations) and calculates carbon intensity for each node individually. This segmentation transforms the aggregate regional calculation into node-level measurements, achieving fine-grained monitoring while maintaining system-wide coverage through the topological graph structure.
Solution Approach 2:
The patent introduces power flow data as an intermediary element to trace carbon emissions through the power system. By using power flow data to establish carbon balance relationships at each node, the system can track carbon intensity transmission from power stations through transmission stations to load stations, enabling precise node-level monitoring without requiring direct measurement at each point.
2Loss of information
If node-level carbon intensity monitoring is implemented, then carbon emissions can be tracked and traced at each power node, but the data processing and calculation complexity increases
Solution Approach 1:
The patent applies a universal carbon balance relationship formula that can be used at all power nodes regardless of their specific function (power station, transmission station, or load station). This universal approach simplifies the calculation process by using the same methodological framework across different node types, reducing overall system complexity despite the increased granularity of monitoring.
Solution Approach 2:
The patent establishes carbon balance relationships that create feedback loops at each power node, where carbon intensity information flows back from downstream nodes to upstream nodes. This feedback mechanism enables continuous tracking and verification of carbon emissions throughout the power system, ensuring information completeness while maintaining calculation efficiency through iterative refinement.
3Loss of information
If visual display of node carbon intensity is implemented on topological graph, then carbon flow distribution becomes visible, but the information presentation complexity increases
Solution Approach 1:
The patent uses color-coded visual indicators on the topological graph to represent different levels of carbon intensity at various power nodes. By mapping carbon intensity values to visual properties (such as color intensity or node shading), the system transforms complex numerical data into intuitive visual information that can be easily interpreted, reducing the operational complexity of understanding carbon flow distribution.
Solution Approach 2:
The patent adds a visual dimension to carbon intensity data by displaying it on a topological graph representation of the power system. This dimensional transformation converts tabular numerical data into spatial visual information, where the position, size, and visual attributes of nodes on the graph convey carbon intensity levels, making carbon flow distribution immediately perceivable without complex data manipulation.
Data Source
AI summary
Disclosed are a method for displaying carbon intensities and apparatus. The method includes: acquiring power flow data of power nodes in a power system, wherein the power nodes include a power station node, a transmission station node, and a load station node; processing the power flow data based on a carbon balance relationship to acquire node carbon intensity of each of the power nodes, wherein the node carbon intensity is a carbon emission on a power generation side when the power node generates, transmits or consumes a unit amount of power, and the carbon balance relationship indicates a balance between a total carbon emission corresponding to a power consumption of the power system and a total carbon emission from power generation by the power system; and displaying the node carbon intensity of each of the power nodes on a topological graph of the power nodes, wherein the topological graph of the power nodes indicates a connection relationship between the power nodes.