AC Power Line Management Device for Mobile Energy Resource Prediction
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Solution Overview
Problem
Existing power management systems lack the ability to effectively monitor and predict the supply-demand relationship of mobile energy resources connected to AC power lines, such as electric vehicles and portable power devices, due to their mobile nature and changing connection situations.
Innovation Solution
A management device connected to AC power lines with multiple connection ports, equipped with a measurement unit to detect electric signals, a determination unit to identify the type of connected devices, and a prediction unit to estimate power supply or demand based on these measurements, allowing for improved monitoring and prediction of energy dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile power devices are used to form a VPP, then energy resource flexibility is improved, but connection stability deteriorates due to mobile nature and changing connection situations
Solution Approach 1:
The management device continuously monitors electric signals on the AC power line to detect connection status and device types. This feedback mechanism allows the system to adapt to changing connection situations of mobile power devices, maintaining system stability despite their mobile nature by dynamically adjusting management strategies based on real-time detection results.
Solution Approach 2:
The management device acts as an intermediary between mobile power devices and the VPP control system. It bridges the gap by monitoring and managing the unpredictable connections of mobile devices, translating their variable connection status into manageable information for the VPP, thus resolving the contradiction between flexibility and stability.
2Adaptability or versatility
If mobile power devices connect to AC power lines at unspecified places, then energy resource accessibility is improved, but monitoring capability deteriorates due to lack of fixed connection points
Solution Approach 1:
The management device is designed with multi-functionality to handle various connection scenarios at unspecified locations. It can detect different device types (electric vehicles, portable generators, portable batteries) and adapt its monitoring approach accordingly, enabling effective monitoring despite the lack of fixed connection points and enhancing the system's ability to manage mobile power resources anywhere on the AC power line.
3Adaptability or versatility
If connection situations constantly change, then system adaptability is improved, but prediction accuracy deteriorates due to variable supply-demand relationships
Solution Approach 1:
The management device performs preliminary detection of device types and connection status before supply-demand fluctuations occur. By anticipating changes based on detected device characteristics, the system can prepare prediction models in advance, improving prediction accuracy despite constantly changing connection situations. The device proactively gathers information about connected devices to forecast their power supply and demand behavior.
Data Source
AI summary
A management device is connected to an AC power line provided with a plurality of connection ports, each of which can be connected to an electric device including a power storage unit. The management device includes a measurement unit configured to measure an electric signal on the AC power line, a determination unit configured to determine a type of the electric device connected to the AC power line via a connection port in the plurality of connection ports based on a measurement result of the measurement unit, and a first prediction unit configured to predict an amount of power supply on the AC power line due to discharge of the power storage unit based on a determination result of the determination unit.