EV Grid Code Control for Location-Based V2G Compliance

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Solution Overview

Problem

The implementation of electric vehicles as power generators is complicated by the need to comply with location-specific grid codes, which can change due to their mobile nature, and existing systems lack efficient methods for remote control and compliance with these codes.

Innovation Solution

A system onboard the electric vehicle, comprising a memory and processor, receives instructions from a remote system to enable or disable vehicle-to-grid operations, determines the vehicle's location, and implements appropriate grid codes to ensure compliance with local regulations, enabling the vehicle to function as a power source for the energy grid.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If electric vehicles are implemented as power generators, then energy storage and transmission capability is improved, but compliance complexity with location-specific grid codes increases

Engineering Contradiction:
Improveenergy transmission capabilityVSAvoidcompliance complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

A remote system acts as an intermediary between the electric vehicle and the energy grid, managing grid code compliance centrally. The system receives the vehicle's location, determines applicable grid codes, and transmits appropriate grid code data to the vehicle, thereby resolving the complexity of location-specific compliance without burdening the vehicle itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs preliminary actions by pre-determining applicable grid codes based on the vehicle's location before the vehicle actually connects to the grid. This advance preparation ensures compliance is already configured when energy transmission begins, preventing compliance issues during operation.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If remote control of V2G operation is implemented, then system manageability is improved, but communication requirements and system complexity increase

Engineering Contradiction:
Improvesystem manageabilityVSAvoidcommunication system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The remote system performs multiple functions through a single integrated platform: it receives location data from the vehicle, determines applicable grid codes based on that location, stores the appropriate grid code data, and transmits it back to the vehicle. This multi-functional approach consolidates what could be separate complex systems into one coordinated platform.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250319793A1Remote storage and implementation of grid codes for controlling charging/discharging an electric vehicle
Publication Date: 2025.10.16 VOLVO CAR CORP
  • US20250319793A1 patent drawing
  • US20250319793A1 patent drawing
  • US20250319793A1 patent drawing

AI summary

Operation of an electric vehicle (EV) is monitored and controlled to enable operation in a vehicle to grid (V2G) configuration. During bidirectional power transfer, energy stored in batteries onboard the electric vehicle can be transferred to the grid. During a period of high energy input into the grid, e.g., energy sourced from wind turbines/solar, the energy can be stored in the onboard batteries. During low energy input, the energy stored in the batteries can be transferred to the grid. V2G operation is conducted in accordance with a grid code(s) implemented at the grid. Grid codes can be forwarded from respective grid operators to a central system (remotely located from the EV), and subsequently forwarded for implementation to the EV. Based on EV location, the central system can control which grid code is forwarded to the EV and also whether the EV can perform V2G operation(s).