Master Charging Pile Power Allocation During Cloud Disconnection
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Solution Overview
Problem
The existing charging systems for electric vehicles are prone to network disconnection issues, leading to unreliable power distribution and potential overload in local power grids, which can result in fuse failures and decreased reliability.
Innovation Solution
A dynamic power distribution system where a master charging pile, connected to both slave charging piles and a cloud server, acquires power parameters from a power distribution controller and calculates power distribution information using a dynamic algorithm, allowing for independent operation even when the network connection with the cloud server is lost, ensuring local information security and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If cloud server is used to centrally control charging piles, then power distribution can be managed centrally, but the system becomes excessively dependent on cloud connection and local information security is compromised
Solution Approach 1:
The system divides power distribution control into two segments: centralized cloud management for configuration and monitoring, and local master charging pile for real-time power distribution decisions. This segmentation allows the master charging pile to operate independently when disconnected from the cloud, ensuring system reliability while maintaining centralized control capabilities when connected.
Solution Approach 2:
The master charging pile is equipped with local power distribution algorithms and parameters, enabling it to make autonomous power distribution decisions based on local grid conditions. This local quality enhancement ensures that the system can maintain reliable operation even when cloud connection is lost, while still benefiting from centralized updates when available.
2Extent of automation
If cloud server is used for centralized control, then power distribution can be managed uniformly, but the system fails when network connection is lost
Solution Approach 1:
The master charging pile pre-stores power distribution algorithms, parameters, and local grid capacity information locally before cloud disconnection occurs. This preliminary action ensures that the system has all necessary resources to perform autonomous power distribution when the cloud connection is lost, maintaining operational reliability.
Solution Approach 2:
The master charging pile is designed to self-manage power distribution using locally stored algorithms and real-time measurements of grid capacity and charging pile power consumption. This self-service capability allows the system to continue operating reliably without cloud server assistance when network connection is unavailable.
3Loss of information
If charging piles transmit all information to cloud server, then centralized monitoring is achieved, but local information security is compromised
Solution Approach 1:
The system extracts and retains critical power distribution algorithms, parameters, and calculation capabilities locally at the master charging pile, while only transmitting necessary operational data to the cloud server. This extraction of essential functions to the local level protects sensitive information from being transmitted to the cloud, enhancing information security while maintaining centralized monitoring capabilities.
Data Source
AI summary
Provided is a charging system, including at least one group of charging sets, where each charging set includes a master charging pile and a plurality of slave charging piles, and the master charging pile is respectively connected to the plurality of slave charging piles; and a cloud server, where the cloud server is configured to be in a communication connection with the master charging pile in the at least one group of charging sets; and the master charging pile is connected to a power distribution controller of a power grid and is configured to acquire a power parameter from the power distribution controller, to determine a distributable power for each charging set. The problem of not being able to calculate a charging power in the case of network disconnection may be solved; moreover, a configuration may be updated when a network is connected.