DC Power Sharing Bus for Flexible EV Charging Output Allocation
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Solution Overview
Problem
The inefficiency in charging new energy vehicles due to fully charged vehicles occupying charging piles, leading to wasted resources and reduced charging efficiency, as existing charging systems lack flexibility in power allocation and compatibility, resulting in higher operational costs and low usage of charging piles.
Innovation Solution
A charging system with direct current-to-direct current conversion modules, power sharing buses, and multiple output ends that allow flexible power allocation and utilization, enabling the system to adapt to different charging power requirements and optimize resource utilization by sharing power between modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional charging piles are deployed to meet charging requirements, then charging capacity is improved, but operating costs increase
Solution Approach 1:
The charging pile is designed with multiple output ends that can serve different charging power requirements. The system can dynamically allocate power to different vehicles based on their needs, allowing a single charging pile to replace multiple dedicated charging piles, thereby reducing deployment costs while maintaining charging capacity.
Solution Approach 2:
The charging system implements dynamic power allocation where the charging pile can adjust its output power in real-time based on the charging status and requirements of connected vehicles. This dynamic capability allows flexible resource utilization without requiring additional fixed infrastructure.
2Adaptability or versatility
If charging piles are occupied by fully charged vehicles, then charging resources are wasted, but charging efficiency decreases
Solution Approach 1:
The charging pile enables continuous charging operations by allowing multiple vehicles to be charged simultaneously through different output ends. When one vehicle completes charging, another vehicle can immediately utilize the available power output, ensuring continuous useful action and eliminating idle time.
Solution Approach 2:
Multiple charging functions are merged into a single charging pile through the power sharing bus architecture. Different output ends can serve multiple vehicles concurrently, combining what would traditionally require separate charging piles into one integrated system, thereby improving resource utilization and charging efficiency.
3Adaptability or versatility
If charging systems lack flexibility in power allocation, then compatibility is reduced, but device complexity increases
Solution Approach 1:
The charging system is segmented into multiple independent output ends, each capable of providing different power levels. This segmentation allows the system to accommodate various charging requirements without requiring a completely different system architecture, maintaining simplicity while enhancing compatibility.
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
Improves charging efficiency by allowing flexible power allocation and utilization, reducing waste and operational costs, and enhancing compatibility, thereby optimizing the use of charging resources.
Implementation Method 1
one or more direct current-to-direct current conversion modules, a first power sharing bus, a second power sharing bus
Data Source
AI summary
A charging system includes one or more direct current-to-direct current conversion modules, a first power sharing bus, a second power sharing bus, at least one first output end, and at least one second output end. The direct current-to-direct current conversion module includes at least one first energy supply unit and at least one second energy supply unit. The first energy supply unit is coupled to the first power sharing bus. The second energy supply unit is coupled to the first power sharing bus and the second power sharing bus. The first output end is coupled to the first power sharing bus. The second output end is coupled to the second power sharing bus. A maximum output power of the first output end is different from a maximum output power of the second output end.