Vehicle DR Priority Control Under Unreliable Battery Communication
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Solution Overview
Problem
Existing power management systems struggle to ensure appropriate adjustment of supply and demand of electric power in response to demand response (DR) requests due to poor communication conditions between vehicles equipped with batteries and the power management apparatus, leading to potential penalties for customers.
Innovation Solution
A power management apparatus and method that includes a communication apparatus, an acquisition unit, and a control unit. The acquisition unit obtains history information and state of charge information from vehicles, and the control unit determines priorities for power adjustment resources. If history information is not obtained despite changes in the state of charge, the control unit lowers the priority of the vehicle to avoid selection for DR requests, thereby mitigating the impact of communication reliability degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicles are selected for DR requests based on state of charge changes, then power adjustment capability is improved, but communication reliability degradation leads to inappropriate selection and customer penalties
Solution Approach 1:
The system implements feedback by monitoring whether history information is successfully obtained from vehicles. When history information is not obtained despite state of charge changes, the system infers communication issues and adjusts vehicle priority accordingly, creating a closed-loop control mechanism that adapts to communication conditions
Solution Approach 2:
The vehicle priority is made dynamic rather than static. The control unit continuously adjusts vehicle priority based on real-time communication status and state of charge information, allowing the system to adaptively respond to changing communication reliability conditions while managing demand response resources
2Adaptability or versatility
If the system actively uses vehicles with batteries for DR, then power adjustment flexibility is improved, but poor wireless communication conditions prevent appropriate information exchange
Solution Approach 1:
The system performs preliminary assessment of communication reliability by checking whether history information is obtained before fully relying on state of charge data for DR selection. This preliminary check prevents information loss by identifying vehicles with communication issues before they are selected for DR requests
Solution Approach 2:
The history information serves as an intermediary indicator to assess communication reliability. Rather than directly measuring communication quality, the system uses the presence or absence of history information as a proxy to infer communication status and adjust vehicle selection accordingly
Data Source
AI summary
In a server, an acquisition unit obtains, from a vehicle through a communication apparatus, history information indicating that demand and supply of electric power has been performed for a power grid PG, and information on the state of charge of a battery. A control unit determines priorities of a plurality of DERs for a DR request. The control unit determines a priority of the vehicle so that the vehicle is less likely to be selected for the DR request, when the SOC obtained by the acquisition unit has changed although the acquisition unit has not received the history information.