Charging Control Apparatus Peak Demand Management
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Solution Overview
Problem
The existing vehicle charging systems face issues when a large number of users select fast charging, leading to an increase in supply power demand that exceeds contracted amounts, causing breakers to trip and disrupting power supply to vehicle charging stations.
Innovation Solution
A charging control apparatus with an electrical storage section and power management system that calculates and controls the supply power based on remaining charge and contractual limits, using supplemental storage to reduce peak demand and prevent overcurrent, allowing continued power supply to vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a large number of users select fast charging, then charging speed is improved, but supply power demand exceeds contractual limits causing breaker tripping
Solution Approach 1:
The charging control apparatus performs preliminary calculation of the supply power amount by acquiring charging power information from multiple charging apparatuses and calculating the total supply power amount before actual charging begins. This allows the system to predict peak demand and take preventive measures to avoid breaker tripping while still enabling fast charging when power availability permits.
Solution Approach 2:
The charging control apparatus acts as an intermediary between the power source section and multiple charging apparatuses. It receives charging power information from charging apparatuses, calculates the total supply power amount, and compares it with the contractual power amount to mediate power distribution and prevent overcurrent conditions.
2Reliability
If supply power amount is reduced to prevent breaker tripping, then power supply stability is improved, but charging speed decreases
Solution Approach 1:
The system dynamically adjusts power distribution based on real-time conditions. The charging control apparatus continuously monitors the supply power amount and compares it with the contractual power amount, dynamically controlling the charging power to be supplied to each charging apparatus. This dynamic control allows the system to maintain power supply stability while maximizing charging speed within available power constraints.
Solution Approach 2:
The system changes the parameter of charging power based on the calculated supply power amount. When the supply power amount exceeds the contractual power amount, the charging control apparatus adjusts the charging power parameters to ensure total power consumption remains within contractual limits, thereby maintaining power supply stability while still providing charging services.
3Loss of time
If charging power is increased for fast charging, then charging time is reduced, but total power consumption exceeds contractual limits
Solution Approach 1:
The system implements partial fast charging by allocating charging power to multiple charging apparatuses based on available power capacity. Instead of providing full fast charging power to all apparatuses simultaneously, the charging control apparatus distributes power partially across multiple devices, enabling faster charging than standard rates while keeping total power consumption within contractual limits.
Solution Approach 2:
The charging control apparatus uses feedback from charging power information acquired from multiple charging apparatuses to adjust power distribution. By continuously monitoring the charging status and power consumption of each apparatus, the system can optimize power allocation to achieve the fastest possible charging rates across the network while maintaining total power consumption within contractual limits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures continuous power supply to vehicles during peak demand periods by reducing the load on the primary power source, preventing breaker tripping and optimizing energy usage, thereby maintaining efficient charging operations.
Implementation Method 1
an electrical storage section that stores power supplied from a power source
Data Source
AI summary
A charging control apparatus (1) that controls charging of a plurality of vehicles connected via a power line is provided with an electrical storage section (41) that stores power supplied from a power source, a communication section that receives information relating to supply power from the plurality of vehicles, a power amount calculation section (43) that calculates a supply power amount for the plurality of vehicles based on the information, and a control section that, if the supply power amount exceeds a second threshold value combining a remaining charge amount of the electrical storage section (41) and a contractual power amount, controls supply power for the plurality of vehicles so as to become smaller than the second threshold value.