EV Fleet Energy Management for Immediate Charging Deviations
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Solution Overview
Problem
Existing energy management systems for electrified vehicles face deviations in chargeable and dischargeable amounts due to unpredicted charging, leading to inefficiencies and power losses during power transfer between vehicles.
Innovation Solution
A management system that includes a first management device to determine immediate charging needs and acquire chargeable and dischargeable amounts, reducing the likelihood of unpredicted charging by implementing remote control for immediate charging and optimizing energy management plans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power transfer between electrified vehicles is used to offset deviations in chargeable and dischargeable amounts, then the deviation is reduced, but energy loss increases due to charging/discharging losses
Solution Approach 1:
The management device determines whether immediate charging is required before calculating the chargeable and dischargeable amount. By identifying vehicles needing immediate charging in advance and excluding them from VPP calculations, the system prevents unplanned charging events that would cause deviations, thereby eliminating the need for compensatory power transfer and associated energy losses.
2Device complexity
If the chargeable and dischargeable amount is calculated without considering immediate charging needs, then calculation simplicity is maintained, but deviation occurs due to unplanned charging
Solution Approach 1:
The system performs a preliminary determination step before calculation to identify vehicles requiring immediate charging. This simple yes/no check for each vehicle prevents unplanned charging by proactively managing charging requests, ensuring the calculated chargeable and dischargeable amounts accurately reflect actual VPP capabilities without adding complex calculation methodologies.
3Ease of operation
If immediate charging is not determined in advance, then system operation is simpler, but unpredicted charging causes deviation from transmitted energy management data
Solution Approach 1:
The management device executes a preliminary determination process to identify vehicles needing immediate charging before calculating and transmitting chargeable and dischargeable amounts. This advance identification ensures that all charging needs are accounted for in the transmitted data, preventing information loss and deviations caused by unplanned charging events while maintaining straightforward system operation.
Data Source
AI summary
A management system includes a first management device that manages a vehicle group including a plurality of electrified vehicle, and a second management device that requests the first management device for energy management related to the power system PG. The first management device determines whether there is an electrified vehicle present within the vehicle group that requires immediate charging, when determination is made that there is an electrified vehicle present within the vehicle group that requires immediate charging, on an assumption that the electrified vehicle performs immediate charging, the first management device is configured to acquire information that shows a chargeable and dischargeable amount including at least one of a power amount that enables the vehicle group to be charged and a power amount that enables the vehicle group to be discharged, and transmit information that shows the acquired chargeable and dischargeable amount to the second management device.