EV Charging Module Grouping for Distributed Power Allocation
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Solution Overview
Problem
Existing electric vehicle charging infrastructure faces issues with centralized power distribution systems, where a main charger's failure disrupts sub-chargers, communication is limited, and installation and maintenance costs are high, while Energy Storage Systems (ESS) require advanced power management.
Innovation Solution
A method and apparatus that groups charging modules connected to the same power source, allowing them to share power information and determine power distribution equally, rather than relying on a main charger, to optimize power supply to each module within the power source's capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a centralized main charger controls multiple sub-chargers, then power distribution can be managed, but installation cost and maintenance cost increase significantly
Solution Approach 1:
The patent divides the charging system into independent charging modules that can operate autonomously. Each module has its own control capabilities and can manage power distribution independently, eliminating the need for a centralized main charger. This segmentation reduces installation and maintenance costs while maintaining power distribution functionality.
Solution Approach 2:
Each charging module is equipped with self-management capabilities, including autonomous power reception control and peer-to-peer communication. The modules can independently determine their power needs and negotiate power allocation with other modules, eliminating dependency on a centralized controller and reducing maintenance requirements.
2Power
If a centralized main charger manages power supply, then power allocation can be controlled, but reliability decreases when the main charger fails
Solution Approach 1:
By dividing the system into independent charging modules, the patent eliminates the single point of failure represented by the centralized main charger. Each module can continue operating independently even if other modules fail, significantly improving system reliability while maintaining power allocation control through peer-to-peer negotiation.
Solution Approach 2:
The patent changes the control architecture from centralized to distributed, fundamentally altering how power allocation is managed. Instead of a single controller making all decisions, each module autonomously determines its power needs and negotiates with neighbors, providing both control capability and fault tolerance.
3Ease of operation
If sub-chargers communicate through a main charger, then coordination is possible, but communication between sub-chargers becomes difficult
Solution Approach 1:
The patent introduces a peer-to-peer communication mechanism where charging modules can directly exchange information without requiring a centralized intermediary. This enables modules to coordinate power reception and share status information directly, improving communication efficiency and reducing information loss.
4Speed
If power is rapidly released from ESS to reduce burden, then charging speed increases, but power distribution efficiency decreases
Solution Approach 1:
The patent implements dynamic power distribution where each charging module autonomously adjusts its power reception based on real-time conditions and negotiations with neighboring modules. This dynamic approach allows the system to optimize both charging speed and overall power source utilization, preventing any single module from monopolizing power capacity.
Solution Approach 2:
The patent incorporates feedback mechanisms where charging modules continuously monitor power reception status and adjust their behavior accordingly. Modules provide feedback to neighbors about their charging needs and power availability, enabling the system to optimize power distribution efficiency while maintaining high charging speeds through coordinated power release from ESS.
Data Source
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AI summary
A method, apparatus and computer program for supplying power through grouping of charging modules for electric vehicle are provided. A method for supplying power through grouping of charging modules for electric vehicle according to various embodiments of the present disclosure, the method being performed by a computing apparatus, the method includes outputting a first signal in response to receiving power from a power source; collecting a plurality of second signals output in response to each of external plurality of charging modules receiving power; and selecting at least one charging module from among the plurality of charging modules using a parameter of the first signal and the plurality of second signals, and grouping into one group with the selected at least one charging module.