Master Vehicle Control for Stable Multi-Vehicle Power Supply
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Solution Overview
Problem
Existing systems fail to maintain frequency stability when supplying electric power from multiple vehicles to a facility due to unbalanced demand and supply, as highlighted in Japanese Unexamined Patent Application Publication No. 2017-112806.
Innovation Solution
A control device and server that identify a master vehicle based on power supply and demand information to manage and stabilize electric power distribution among vehicles, using a processor to control electric energy supply to maintain frequency constancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple vehicles supply electric power to a facility without centralized control, then the quantity of supplied electric energy increases, but frequency stability deteriorates due to unbalanced demand and supply
Solution Approach 1:
The patent introduces a master vehicle as an intermediary control entity among multiple power-supplying vehicles. The master vehicle receives power supply information from all vehicles, performs centralized calculations to determine optimal power distribution, and sends control instructions back to each vehicle. This intermediary structure enables coordinated control that maintains frequency stability while aggregating power from multiple sources.
Solution Approach 2:
The system dynamically adjusts the electric energy supply parameters of individual vehicles based on real-time frequency conditions and demand-supply balance. The master vehicle modifies power output parameters of each vehicle to maintain overall frequency stability, transforming the control approach from static to adaptive parameter adjustment.
2Ease of operation
If electric power supply from multiple vehicles is controlled individually, then each vehicle can operate independently, but overall frequency stability deteriorates due to lack of coordination
Solution Approach 1:
The control system is segmented into a master vehicle that performs centralized calculation and multiple slave vehicles that execute control instructions. This segmentation allows individual vehicles to maintain operational simplicity while the master vehicle ensures overall system stability through coordinated management of power distribution.
3Reliability
If a master vehicle is introduced to coordinate power supply, then frequency stability is maintained, but system complexity increases
Solution Approach 1:
The master vehicle utilizes its own computing resources and communication capabilities to perform the coordination function, rather than requiring an external centralized control system. This self-service approach maintains frequency stability while avoiding the additional infrastructure complexity that would arise from introducing a separate control facility.
Data Source
AI summary
A control device includes a processor configured to: acquire electric power supply information indicating suppliable electric energy by each of a plurality of vehicles and electric power demand information indicating demanded electric energy of a facility to which each of the vehicles supply electric power; fix a master vehicle that controls electric power supply of each of the vehicles from among the vehicles based on the electric power supply information; and control electric energy when each of the vehicles supplies the electric power to the facility based on the electric power supply information of the master vehicle and the electric power demand information.