V2G Discharge Schedule Communication for Cumulative Cost Billing
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Solution Overview
Problem
Current vehicle-to-grid (V2G) technologies lack a standardized communication interface for effectively managing discharge schedules, which hinders efficient billing policies and grid operation.
Innovation Solution
A method for communicating between an electric vehicle, supply equipment, and a power grid operation server, involving the transmission of a discharge schedule including energy discharge amount, start time, and finish time, and the calculation of a discharge cost with an additional calculation cost applied when the total energy discharge exceeds a reference energy discharge amount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If discharge cost is calculated based on individual vehicle discharge amount, then calculation simplicity is maintained, but billing policy effectiveness deteriorates
Solution Approach 1:
The patent merges the discharge amounts of multiple electric vehicles to calculate a cumulative discharge amount. When this cumulative amount reaches or exceeds a reference value, an additional calculation cost is applied to the discharge cost. This combining approach improves billing policy effectiveness by encouraging coordinated discharge while maintaining relatively simple calculation procedures.
2Productivity
If additional calculation cost is applied based on cumulative discharge amount, then billing policy effectiveness is improved, but calculation complexity increases
Solution Approach 1:
The patent applies an additional calculation cost only when the cumulative discharge amount reaches or exceeds a reference value, rather than continuously adjusting costs based on precise individual contributions. This partial action approach achieves effective billing policy implementation without requiring complex real-time tracking and calculation of each vehicle's exact discharge amount.
3Adaptability or versatility
If discharge schedule is not standardized, then communication flexibility is maintained, but V2G system efficiency deteriorates
Solution Approach 1:
The patent establishes a standardized discharge schedule communication interface that can be universally applied across different electric vehicles and supply equipment. The schedule includes standardized parameters such as discharge start time, discharge finish time, and discharge amount, enabling efficient V2G operations while maintaining the flexibility to accommodate different vehicle types and grid requirements through a unified communication protocol.
Data Source
AI summary
A method of communicating between an electric vehicle, a supply equipment, and a power grid includes transmitting, by an electric vehicle communication controller of the electric vehicle, a discharge schedule including an amount of energy discharge, a discharge start time, and a discharge finish time to a supply equipment communication controller of the supply equipment or a power grid communication controller of the power grid operation server, and receiving a discharge cost calculated according to the discharge schedule from the supply equipment communication controller or the power grid communication controller, wherein the discharge cost including an additional calculation cost, in response to a sum of the amount of energy discharge of the electric vehicle and an amount of energy discharge of another electric vehicle being greater than or equal to a reference energy discharge amount.