EV Charging Station Balancing in Microgrid Networks
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Solution Overview
Problem
The limited infrastructure for electric vehicle charging stations hinders the widespread adoption of electric vehicles due to inconvenience and high recharging times, as well as the need for commercial charging stations to support cross-country travel and home charging limitations.
Innovation Solution
A system that includes a cloud server, electric vehicle charging stations, and a network link facilitated by a mobile device for communication, enabling charge transfer management, validation of credit card information, and adjustment of charging parameters such as rate and time, with options for econocharging and green energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple charging stations are deployed to support cross-country travel, then the infrastructure coverage is improved, but the system complexity and coordination requirements increase
Solution Approach 1:
The patent divides the charging network into autonomous charging stations, each capable of independent operation and local decision-making. Each station manages its own charging sessions and can autonomously transfer charges to neighboring stations, reducing the need for centralized coordination while expanding geographic coverage.
Solution Approach 2:
The patent implements a hierarchical control structure where individual charging stations operate autonomously at the local level, while simultaneously being part of a larger networked system. The charge balancing protocol operates at the network level, coordinating between autonomous station-level decisions, creating a nested control architecture that manages complexity.
2Reliability
If charge balancing is implemented between multiple charging stations, then the reliability of charge transfer is improved, but the communication and coordination overhead increases
Solution Approach 1:
The patent pre-establishes charge balancing agreements and communication protocols between neighboring charging stations before actual charging sessions occur. Stations exchange capability information and pricing structures in advance, allowing them to autonomously execute charge transfers without real-time centralized coordination, reducing communication overhead while maintaining reliability.
3Productivity
If dynamic pricing and charge balancing are implemented, then the productivity of the charging network is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamic pricing and charge balancing mechanisms that automatically adjust based on real-time network conditions, station utilization, and energy availability. The system continuously optimizes charge routing and pricing without requiring complex manual intervention, improving network productivity through adaptive algorithms that run autonomously at each station.
Data Source
AI summary
A system for controlling a charging of an electric vehicle, wherein a charging at one electric vehicle charging station affect a charging at another electric vehicle charging station is disclosed. The system includes: an electric power grid, a first electric vehicle charging station connected to the electric power grid, and a second electric vehicle charging station connected to the electric power grid, wherein the first electric vehicle charging station facilitates a charge transfer for an electric vehicle at the second electric vehicle charging station using a mobile device. The mobile device relays communication from the electric vehicle charging stations to the cloud server. The charge transfer request received at the cloud server is authorized using identification information and credit account information received from the mobile device. The charge transfer at the first electric vehicle charging station is adjusted based on a charging level at the second electric vehicle charging station.