Power Management System Using Value Indices for EV Energy Exchange
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Solution Overview
Problem
As electric vehicles become more prevalent, there is a need to effectively utilize power stored in them at different times and locations, but existing systems face challenges due to power conversion losses when vehicles supply or receive power, leading to inefficiencies and potential losses for companies operating power stations.
Innovation Solution
A power management system that converts power amounts used or received by vehicles into value indices, allowing users to make flexible decisions based on these values, and adjusts these indices based on location, power supply-demand situations, and state of charge, encouraging efficient use and transportation of power storage devices between stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vehicle supplies power to a power installation and the user is allowed to receive the same power amount at another time or location, then the user can use the power flexibly, but power conversion loss occurs for the company operating the power installations
Solution Approach 1:
The patent introduces a server as an intermediary that manages power transactions between vehicles and power installations. The server issues value indices that represent power amounts, allowing users to exchange power flexibly without direct physical power transfer. This mediator system enables the company to track and manage power conversions centrally, preventing energy loss while maintaining user flexibility.
Solution Approach 2:
The patent changes the parameter representation from physical power amount to a value index. Instead of tracking actual power amounts directly, the system uses value indices that can be issued, transferred, and redeemed across different times and locations. This parameter transformation allows flexible power usage while the company maintains control over the total power supply and avoids conversion losses.
2Ease of operation
If the company manages power amount directly without conversion to value index, then power tracking is straightforward, but flexible operation based on power value during use is limited
Solution Approach 1:
The server acts as an intermediary that handles the complex power management tasks. It issues value indices to users based on power supplied to vehicles, and processes power reception requests by redeeming these value indices. This centralizes the complexity in the server while keeping the vehicle and power installation operations simple and flexible.
Solution Approach 2:
The system transforms power amount management into value index management. The value index serves as a virtual representation of power that can be easily issued, transferred, and redeemed. This parameter change simplifies the operation for users while enabling flexible power usage across different times and locations.
3Productivity
If power is exchanged directly between vehicle and power installation, then the process is simple, but power conversion loss in the vehicle or power installation occurs
Solution Approach 1:
The server serves as an intermediary that eliminates direct power conversion between vehicle and power installation. Instead of physical power transfer requiring conversion, the system uses value indices that are issued when power is supplied to the vehicle and redeemed when power is received. This virtual exchange mechanism eliminates conversion losses while maintaining efficient power exchange.
Solution Approach 2:
The patent creates a virtual copy of the power transaction through value indices. When a vehicle supplies power, the server issues a value index that copies the power amount information. This virtual copy can be transferred and redeemed without physical power conversion, eliminating conversion losses while maintaining the essence of the power exchange.
Data Source
AI summary
A power management system includes a plurality of power stations, a plurality of vehicles capable of exchanging power with any of the power stations, and a server configured to communicate with the plurality of vehicles and the plurality of power stations. When each power station receives power from the vehicle or supplies power to the vehicle, each power station associates a power amount received from the vehicle or a power amount supplied to the vehicle with a user ID of the vehicle, and transmits the power amount to the server. The server sets a value point based on the power amount received from the power station, and provides the value point to the user having the user ID associated with the power amount.