EV Charging Plan Control Under Limited Parking Lot Capacity
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Solution Overview
Problem
Insufficient charging infrastructure in parking lots can lead to vehicles being unable to charge, resulting in electricity shortages.
Innovation Solution
A control apparatus that determines charging plans based on vehicle data and charging device capabilities, ensuring all vehicles receive a minimum charge amount to prevent electricity shortages, including alternative charging plans if initial plans are unfeasible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging devices are installed in parking lots to charge vehicle batteries, then vehicles can be charged, but the charging infrastructure may be insufficient leading to electricity shortages
Solution Approach 1:
The control apparatus creates charging plans in advance that guarantee a lower limit charge amount for each vehicle. By pre-calculating and allocating charging resources before the charging actually occurs, the system ensures that even when charging infrastructure is insufficient, each vehicle will receive at least the minimum required charge, thus preventing electricity shortages and maintaining reliable power supply to all vehicles.
2Productivity
If charging plans are created to allocate charge amounts to each vehicle, then charging efficiency is improved, but the system complexity increases
Solution Approach 1:
The control apparatus automatically performs charging plan creation and adjustment without requiring manual intervention. The system self-manages the complex task of allocating charging resources by autonomously calculating optimal charge amounts, monitoring charging status, and adjusting plans when vehicles depart, thereby reducing the need for complex manual control while maintaining high charging efficiency.
Solution Approach 2:
The system dynamically adjusts charging parameters such as charge amount and charging rate based on real-time conditions. By changing these parameters automatically in response to vehicle departures and charging status, the system simplifies control operations while optimizing charging efficiency and ensuring fair resource allocation among multiple vehicles.
3Reliability
If the charging plan guarantees a lower limit charge amount for all vehicles, then electricity shortages are prevented, but the charging infrastructure utilization becomes suboptimal
Solution Approach 1:
The control apparatus implements a two-tier charging strategy: it first guarantees a lower limit charge amount for each vehicle to prevent electricity shortages, then allocates remaining charging capacity to additional vehicles based on available infrastructure. This partial action approach ensures reliable power supply to all vehicles while optimizing infrastructure utilization by serving more vehicles than the minimum required when resources permit.
Data Source
AI summary
A control apparatus for a charging system that is configured to charge batteries of respective vehicles includes one or more processors and one or more memories. The control apparatus includes one or more processors, and one or more memories coupled to the one or more processors. The one or more processors are configured to: acquire, from each of the vehicles, charging data comprising at least data on a target charge amount; determine, based on the charging data acquired from each of the vehicles, a charging plan comprising at least an actual charge amount to be actually allocated to each of the vehicles; and control a charging device to cause all the vehicles to be charged based on a lower limit charge amount or more, when the determined charging plan is unachievable.