Bidirectional EV Charging Control for Grid-Aware Energy Trading
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Solution Overview
Problem
The increasing adoption of electric vehicles charged with renewable energy sources leads to grid congestion and volatility due to intermittent energy supplies, necessitating a more efficient energy management system to optimize energy distribution and usage.
Innovation Solution
An energy management system that includes a processor and memory to determine available energy resources, unit prices, and initiate energy transfers between vehicles and charging stations based on market demand and defined criteria, enabling bidirectional energy flow and efficient resource allocation through a bidding mechanism and green energy rating algorithm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If more electric vehicles use renewable energy sources for charging, then environmental benefits increase, but electrical grid congestion and volatility increase
Solution Approach 1:
The system performs preliminary actions by predicting future energy resource availability and pricing trends, then proactively scheduling energy transfers before grid congestion occurs. The energy management system analyzes forecasted renewable energy generation and market prices to determine optimal charging/discharging times, executing energy transfers in advance of peak demand periods to avoid grid volatility while maintaining high renewable energy utilization
Solution Approach 2:
The system dynamically adjusts energy transfer timing and pricing based on real-time grid conditions, renewable energy availability, and market demand. The bidirectional charging station and energy management system continuously monitor grid state and modify charging schedules, prices, and energy flow directions adaptively, allowing the system to respond to changing conditions and maintain grid stability while maximizing renewable energy usage
2Loss of energy
If energy transfers are initiated based on real-time market demand and pricing, then charging costs are reduced, but system complexity increases
Solution Approach 1:
The energy management system acts as an intermediary layer between the bidirectional charging station, renewable energy sources, and the electrical grid. This intermediary component consolidates the complexity of analyzing market prices, predicting energy availability, and optimizing transfer timing into a single centralized system, shielding individual vehicles and charging stations from complex decision-making while achieving cost-effective energy transfers through coordinated management
Data Source
AI summary
Aggregated energy management (e.g., using a computerized tool) is enabled. For example, a vehicle can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise an energy component that determines an energy resource available to a bidirectional charging station electrically coupled to a vehicle, and based on current energy market demand, a unit price applicable to the energy resource, and a charging component that, based upon a defined charging criterion being determined to be satisfied, initiates a transfer of the energy resource between the vehicle and the bidirectional charging station according to the unit price.