Contactless Power Feeding with Phase-Synced Redundant Boards
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional contactless power feeding systems fail to maintain stable power supply to mobile bodies when one power supply component fails.
Innovation Solution
A contactless power feeding apparatus with multiple power supply boards and a power distribution circuit that distributes power to multiple lines, allowing power to be supplied even if one board fails, and synchronizes phases using a clock signal to ensure stable power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single power supply board is used in the contactless power feeding system, then the device complexity is reduced, but the reliability of power supply deteriorates because power supply stops when the board fails
Solution Approach 1:
The power supply system is segmented into multiple independent power supply boards (first power supply board, second power supply board, etc.), each capable of independently supplying power to the power supply line. This segmentation allows the system to maintain power supply functionality even when one board fails, thereby improving reliability while managing complexity through modular design.
Solution Approach 2:
The system incorporates redundant power supply boards in advance to cushion against potential failures. By having backup power supply boards ready before any failure occurs, the system ensures continuous power supply to the mobile body, preventing service interruption and maintaining reliability without requiring complex real-time switching mechanisms.
2Reliability
If multiple power supply boards are used to improve reliability, then the reliability of power supply is improved, but the device complexity increases
Solution Approach 1:
Multiple power supply boards are merged into a unified power distribution system where their outputs are combined at the power supply line. The power distribution circuit integrates the power from multiple boards, allowing them to work together as a single system while maintaining the redundancy benefit, thus managing complexity through unified distribution architecture.
Solution Approach 2:
Each power supply board is designed with universal functionality to perform the same power generation and distribution task. This multi-functionality allows any board to replace another in case of failure, simplifying the overall system design while maintaining reliability, as the same standardized component serves multiple potential roles in the power supply chain.
3Power
If power from multiple power supply boards is supplied simultaneously without phase synchronization, then the power supply capacity is increased, but the stability of power supply deteriorates due to phase differences
Solution Approach 1:
The system employs phase difference detection to monitor the synchronization status of power from multiple boards. By continuously detecting phase differences and providing feedback control, the system adjusts the power supply parameters to maintain stable operation, ensuring that the combined power output remains stable while utilizing the full capacity of all power supply boards.
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
Stable power supply to mobile bodies is maintained by aligning phases of AC power from multiple boards, enabling continuous operation even with board failures.
Implementation Method 1
one power supply board set to a first operation mode that is one of the power supply boards, generates AC power by driving an inverter circuit of the one power supply board
Implementation Method 2
a power distribution circuit to distribute and supply the power generated by the power supply boards to the power supply lines
Implementation Method 3
a plurality of power supply lines to supply power in a contactless manner to a power receiver provided on a mobile body
Data Source
AI summary
A contactless power feeding system includes power supply lines to supply power in a contactless manner to a power receiver on a mobile body, power supply boards to generate power, and a power distribution circuit to distribute and supply the power generated by the power supply boards to the power supply lines.