EV Charging Schedule Control for Peak Load Shifting
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Solution Overview
Problem
The simultaneous charging of multiple electric vehicles can overwhelm the electric source, especially when many vehicles charge at the same time, leading to potential overload and high electricity costs.
Innovation Solution
An electric vehicle charging control device with an electronic dynamic charging schedule generator that adjusts charging schedules based on vehicle and building profiles, using an electronic controller to determine user access, generate schedules, and control charging ports to optimize power usage and reduce peak demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple electric vehicles are charged simultaneously, then charging speed and user convenience are improved, but the electric source becomes overwhelmed and system reliability deteriorates
Solution Approach 1:
The charging control device dynamically adjusts charging schedules based on real-time monitoring of electric source capacity, building load, and vehicle needs. The system transitions from static simultaneous charging to dynamic sequential charging, where charging rates and timing are continuously optimized to prevent source overload while meeting user demands.
Solution Approach 2:
The system performs preliminary assessment of electric source capacity and building load conditions before initiating charging. By pre-calculating optimal charging schedules and sequencing vehicle charging based on predicted source availability, the system prevents overload conditions before they occur while ensuring efficient charging when capacity is available.
2Ease of operation
If charging is concentrated during peak periods when vehicles arrive simultaneously, then user access is improved, but electricity costs increase and harmful effects on the electric source occur
Solution Approach 1:
The system implements periodic charging cycles that distribute vehicle charging across different time periods based on electric source capacity patterns. By identifying low-load periods and scheduling charging during these windows, the system maintains user access while avoiding peak-period overload conditions and high electricity cost periods.
Solution Approach 2:
The charging control device continuously monitors electric source capacity, building load, and charging progress, using this feedback to dynamically adjust charging schedules. When source capacity is sufficient, charging proceeds; when capacity is constrained, the system pauses or reduces charging rates, preventing overload and high-cost period usage while maintaining user access.
3Loss of energy
If dynamic charging schedules are generated and implemented, then energy use is optimized and peak demand is reduced, but device complexity increases
Solution Approach 1:
The charging control device autonomously generates and implements charging schedules by self-monitoring electric source capacity, building load conditions, and vehicle charging needs. The system independently makes scheduling decisions without requiring complex external coordination, achieving energy optimization through self-directed dynamic scheduling while managing complexity through automated decision-making algorithms.
Data Source
AI summary
An electric vehicle charging control device includes an electronic dynamic charging schedule generator, a non-transitory computer readable medium and an electronic communicator. The non-transitory computer readable medium stores vehicle profile data and building profile data. The electronic communicator is configured to receive profile updates to the vehicle profile data from an electronic user interface. The electronic controller is programmed to generate a driver charging profile based on the vehicle profile data and the building profile data. The electronic controller is programmed to update the driver charging profile based on the electric vehicle user's behavior. The electronic controller is programmed to generate a charging schedule for the electric vehicle based on the updated driver charging profile. The electronic controller is programmed to controlling the charging port in accordance with the charging schedule upon the electric vehicle user confirming acceptance of the charging schedule on the electronic user interface.