Power Trading Control Using Communication-Time Facility Matching
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Solution Overview
Problem
In power trading markets, real-time power transactions between facilities connected to low-voltage power grids can disrupt the balance between supply and demand, as the timing of reverse power flow and power flow from the grid may not align, leading to potential imbalances if not managed effectively.
Innovation Solution
A power management system and method that includes a controller and communication unit to determine a facility to sell power and calculate a score based on communication time in the communication path between facilities, ensuring appropriate matching of power purchasing and selling facilities, particularly in scenarios where the distance to the base power supply exceeds a threshold, thereby managing real-time power transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If real-time power transactions are enabled between facilities connected to low-voltage power grids, then power trading flexibility and market participation are improved, but power supply-demand balance stability deteriorates due to timing misalignment between reverse power flow and grid power flow
Solution Approach 1:
The system implements a feedback mechanism by calculating scores based on communication time and using this information to determine facility matching. The controller receives communication time data from the communication unit, processes this feedback to evaluate facility compatibility, and adjusts power transaction decisions accordingly. This closed-loop feedback ensures that timing misalignment issues are continuously monitored and corrected, maintaining power balance stability while enabling flexible real-time trading.
Solution Approach 2:
The power management server acts as an intermediary between facilities engaged in real-time power transactions. It receives transaction requests, calculates communication times, determines facility matching based on these times, and coordinates the actual power flow. This intermediary role allows the system to maintain trading flexibility while ensuring that timing constraints are properly managed and power balance is preserved through centralized coordination.
2Productivity
If facility matching is performed without considering communication time, then transaction speed is improved, but matching accuracy deteriorates leading to suboptimal power transaction decisions
Solution Approach 1:
The system performs preliminary calculation of communication times between facilities before finalizing power transactions. The controller proactively receives communication time data from the communication unit and uses this pre-calculated information to determine facility matching. By performing this evaluation in advance, the system prepares matching decisions ahead of time, ensuring both rapid execution and high accuracy without compromising transaction speed.
3Measurement precision
If communication time is used as a scoring criterion for facility evaluation, then facility matching accuracy is improved, but system complexity increases due to additional communication monitoring requirements
Solution Approach 1:
The communication unit serves multiple functions: it not only facilitates power transaction communications between facilities but also monitors and measures communication times for scoring purposes. The controller similarly performs dual roles by both managing transaction coordination and calculating facility scores based on communication time data. This multi-functionality reduces the need for separate dedicated monitoring systems, thereby limiting the increase in system complexity while maintaining high matching accuracy.
Data Source
AI summary
A power management system for providing a mechanism of power transaction between two or more facilities connected to a power grid, the system includes a controller configured to extract, from the two or more facilities, a power selling facility other than a power purchasing facility by an input from a user terminal corresponding to the power purchasing facility which is one of the two or more facilities, and calculate a score indicating a value of the power transaction based on a communication time in a communication path between the power selling facility and the power purchasing facility, and a notification unit configured to notify the user terminal of the score.