Power Procurement Planning for Transmission Congestion Bottlenecks
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Solution Overview
Problem
Power transmission bottlenecks caused by congestion in the electric power system lead to increased procurement costs for demand/supply adjustment power, as the system operator may not receive power from low-cost suppliers, and existing methods fail to effectively identify and address these bottlenecks, limiting the ability to procure power at the lowest generation price.
Innovation Solution
A power demand/supply adjustment power procurement plan support device and system that analyzes actual power supply and demand data to determine a target transmittable capacity, minimizing total procurement costs by identifying and addressing power transmission bottlenecks through added power transmission capacity analysis and target power transmittable capacity determination, while ensuring system stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power transmission capacity is increased to eliminate bottlenecks, then procurement cost is reduced, but device complexity increases
Solution Approach 1:
The system performs preliminary identification of power transmission bottlenecks using historical data and machine learning models before actual power procurement. By predicting bottleneck locations and characteristics in advance, the system can plan optimal power transmission paths and capacity requirements, thereby reducing procurement costs while avoiding ad-hoc complex system modifications.
Solution Approach 2:
The patent introduces a bottleneck identification device as an intermediary component that analyzes power flow data, transmission capacity, and load characteristics to determine bottleneck locations. This intermediary device provides structured information to the procurement system, enabling cost-effective decisions without directly increasing the complexity of the entire power system.
2Measurement precision
If actual power supply data is used for bottleneck identification, then identification accuracy is improved, but loss of information increases
Solution Approach 1:
The system extracts only the essential features and patterns from large volumes of historical power supply data that are relevant to bottleneck identification. By focusing on key parameters such as power flow characteristics, transmission capacity utilization, and load patterns, the system achieves high identification accuracy while minimizing the storage of redundant information.
Solution Approach 2:
The patent transforms raw historical power supply data into processed parameters and features that are specifically relevant for bottleneck analysis. By changing the data representation from raw measurements to meaningful parameters, the system improves identification accuracy while reducing the volume of data that needs to be stored and processed.
Data Source
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AI summary
The invention eliminates a power transmission bottleneck due to power transmission congestion and supports planning of procuring power demand/supply adjustment power in the market at lower cost. A power demand/supply adjustment power procurement plan support device supports a power demand/supply adjustment power procurement plan of a power system through a power transaction in the power market and is characterized by being provided with an added power transmission capacity analysis means and a target power transmittable capacity determination means. The added power transmission capacity analysis means obtains: actual power supply data including a power supply having supplied power to the power system and the actual value of a power supply amount; an actual power system stabilization data including a power supply performing power supply restriction for power system stabilization, an electric control amount or a customer facility performing a load restriction, and the actual value of a load control amount; and an actual power demand/supply adjustment power procurement data including a procurement amount of the power demand/supply adjustment power of a power supply participating in the power market and the actual value of the total procurement cost. The added power transmission capacity analysis means then performs added power transmission capacity analysis on a power transmittable capacity of each consignment route of the power system and the power supply amount of each power supply in the total procurement cost of the power demand/supply adjustment power to obtain an added power transmission capacity. The target power transmittable capacity determination means determines a target power transmittable capacity for minimizing the total procurement cost from a current power transmittable capacity and a power supply plan on the basis of the added power transmission capacity obtained from the added power transmission capacity analysis means.