Facility EV Charging Control for Contract Power Limits
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Solution Overview
Problem
Charging management devices in designated facilities face challenges in managing power contracts due to the need for excess power supply during operation times, leading to increased costs and inefficiencies.
Innovation Solution
A charging management device that prohibits charging during facility operation times and permits charging using alternative power sources outside these times, adjusting power usage based on contract power and weather conditions to optimize power allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging equipment is provided in a designated facility, then charging service is available to users, but contract power must be increased to cover both facility operation and charging needs
Solution Approach 1:
The patent segments power usage into two distinct time periods: facility operation time and non-operation time. During operation time, only facility power needs are met. During non-operation time, charging operations can utilize available power capacity. This temporal segmentation allows the same power infrastructure to serve dual purposes without requiring excessive contract power capacity.
Solution Approach 2:
The system dynamically adjusts charging availability based on facility operation status. The charging management device monitors facility operation time and automatically permits or prohibits charging operations accordingly. This dynamic control enables flexible power allocation that adapts to changing operational requirements, optimizing power utilization without increasing contract power.
2Ease of operation
If charging is permitted during facility operation time, then user convenience is improved, but power costs and contract requirements increase
Solution Approach 1:
The system implements periodic charging opportunities during non-operation time periods. Instead of allowing continuous charging that would conflict with facility operations, charging is permitted in specific time windows when the facility is closed. This periodic approach maintains user convenience by providing regular charging access while avoiding power cost increases associated with simultaneous facility and charging operations.
3Power
If charging is restricted to non-operation time only, then contract power can be minimized, but charging availability to users is reduced
Solution Approach 1:
The system performs preliminary planning of charging schedules during non-operation time periods. Users can plan their charging sessions in advance during times when the facility is closed and power is available. This preliminary action ensures that charging needs are met without conflicting with facility operations, maintaining charging availability while minimizing contract power requirements.
Data Source
AI summary
A charging management device of a designated facility for concurrently providing a parking space for charging in which a charging device for charging a vehicle-mounted battery is installed, acquires an operation time of a designated facility, prohibits charging by the charging device in the parking space for charging during the operation time of the designated facility, and permits charging by the charging device in the parking space for charging using a designated power outside the operation time of the designated facility.