EV Charging Reservation Control for Demand Response Participation
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Solution Overview
Problem
The challenge is to increase the participation of users in supply and demand balancing in a power grid among users who rent parking spaces with charging apparatuses, as a growing number of remote workers park for extended periods, leading to negative contributions to electric power supply and demand balancing.
Innovation Solution
An information management system and method that includes a controller and communication apparatus to manage reservations for charging and discharging stands, allowing vehicles to participate in supply and demand balancing by performing reservation processing based on state of charge (SOC) and permission/rejection information, with provisional reservations for non-participating vehicles and notifications for overlapping periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parking spaces with charging apparatuses are rented to electrically powered vehicles, then power storage can be charged during parking, but the proportion of users participating in supply and demand balancing remains low
Solution Approach 1:
The system performs preliminary actions by obtaining permission information about supply and demand balancing participation before making the reservation. The controller checks whether the vehicle has permission to participate in supply and demand balancing during the reservation target period, and only makes reservations for vehicles that have such permission. This ensures that reserved parking spaces are pre-identified as available for supply and demand balancing operations.
Solution Approach 2:
The system implements feedback mechanisms by obtaining permission information from vehicles regarding their willingness to participate in supply and demand balancing. The terminal device receives this permission information and transmits it to the server, which then uses this feedback to determine whether to make a reservation. This feedback loop enables the system to adapt reservations based on user participation intent.
2Ease of operation
If remote workers rent parking spaces for extended periods, then they can work remotely in their vehicles, but participation in supply and demand balancing decreases
Solution Approach 1:
The system performs preliminary verification by obtaining permission information about supply and demand balancing participation before making reservations. For parking spaces reserved for extended periods (such as overnight parking where users work remotely), the system checks in advance whether the vehicle has permission to participate in supply and demand balancing during the reservation target period, ensuring that even long-duration reservations contribute to grid balancing when permitted.
3Device complexity
If reservations are made without checking supply and demand balancing permission, then parking space allocation is simplified, but vehicles cannot be utilized for supply and demand balancing
Solution Approach 1:
The system performs the permission check as a preliminary action before making the reservation. The controller obtains permission information from the terminal device about whether the vehicle has permission to participate in supply and demand balancing during the reservation target period. Only after confirming this permission does the controller proceed to make the reservation, ensuring that reservation processing integrates supply and demand balancing utilization without excessive complexity.
Data Source
AI summary
A management server performs processing including registering reservation information when it accepts the reservation information, when a period of use covers all time frames of a DR request, when an intention to participate in DR is indicated, and when a reservation can be made, canceling a tentative reservation when the reservation cannot be made but when a reservation can be made in a tentative reservation time slot, and registering tentative reservation information when the intention to participate in DR is not indicated and when a reservation can be made.