EV Battery Power Exchange Control via Resource Aggregators
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Solution Overview
Problem
Existing systems do not effectively utilize on-board batteries of electric vehicles as energy resources for demand response in power utility grids, limiting the flexibility and efficiency of power management.
Innovation Solution
A system that allows electric vehicles to selectively interchanged electric power with charging and discharging facilities through a resource aggregator, enabling users to set conditions for power exchange, and a server to manage and facilitate this interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electric vehicles are connected to charging and discharging facilities without a selection mechanism, then the facilities can charge/discharge vehicles, but the resource aggregator cannot effectively utilize vehicles as energy resources for demand response
Solution Approach 1:
The patent introduces a resource aggregator as an intermediary between electric vehicles and charging/discharging facilities. The aggregator manages and coordinates power exchange operations, enabling vehicles to be utilized as energy resources without requiring direct complex interactions between vehicles and facilities. This mediator handles the complexity of demand response coordination while keeping individual vehicle-facility interactions simple.
Solution Approach 2:
The patent implements automatic selection mechanisms where electric vehicles autonomously determine whether to permit power interchange based on their own conditions (battery state, user preferences, etc.). This self-service approach eliminates the need for manual intervention and simplifies the overall system operation while enabling effective utilization of vehicles as energy resources.
2Ease of operation
If users have full control over power interchange conditions, then users can protect their interests, but the resource aggregator cannot efficiently manage demand response
Solution Approach 1:
The patent implements a partial control approach where users set basic conditions and preferences for power interchange, but the resource aggregator handles the detailed management and optimization. This partial action division allows users to maintain control over their interests while the aggregator efficiently manages demand response operations without requiring full user involvement in every decision.
Solution Approach 2:
The system incorporates feedback mechanisms where the resource aggregator monitors power interchange conditions, battery states, and demand response requirements, then adjusts operations accordingly while respecting user-set constraints. This feedback loop enables efficient demand response management while maintaining user control over fundamental parameters.
Data Source
AI summary
A new system is provided that enables a resource aggregator to smoothly use on-board batteries of electric vehicles as an energy resource. A user is allowed to select whether or not to permit interchange of electric power between a charging and discharging facility and an electric vehicle through the resource aggregator when the electric vehicle is connected to the charging and discharging facility.