Contactless Power Feeder Coupler Layout for Interference Suppression
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Solution Overview
Problem
Existing contactless power feeders experience interference power between adjacent induction lines due to phase differences, leading to voltage fluctuations and potential system abnormalities, and require complex synchronization systems that increase cost and installation space.
Innovation Solution
A contactless power feeder design with a coupler that holds adjacent feed lines to oppose the current directions in specific sections, reducing interference power without synchronizing phases, using a simpler structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synchronization systems are used to synchronize alternating currents through adjacent induction lines, then voltage stability is improved, but device complexity and installation space increase
Solution Approach 1:
The invention converts the harmful phase difference between adjacent induction lines into a beneficial arrangement by positioning feed lines such that the phase difference causes currents to flow in opposite directions in adjacent sections. This opposite flow direction causes magnetic fields to cancel each other out, reducing interference power and eliminating the need for complex synchronization systems while maintaining voltage stability
2Adaptability or versatility
If multiple induction lines are used to supply power along the travel path, then power supply coverage is improved, but interference power between adjacent lines increases
Solution Approach 1:
The invention applies different current flow directions to different sections of adjacent feed lines based on their local positions. Specifically, in adjacent first sections, currents flow in opposite directions to cancel magnetic fields, while in adjacent second sections, currents flow in the same direction. This localized differentiation reduces interference power while maintaining comprehensive power supply coverage along the travel path
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
The design effectively minimizes interference power between adjacent feed lines, stabilizing power supply and reducing system complexity and cost by eliminating the need for synchronization circuits and associated components.
Implementation Method 1
The first feed line and the second feed line are arranged in the coupler to cause a direction of a current through the first section of the second feed line relative to a direction of a current through the first section of the first feed line to be opposite to a direction of a current through the second section of the second feed line relative to a direction of a current through the second section of the first feed line
Data Source
AI summary
A contactless power feeder including multiple feed lines includes a coupler disposed between a first feed line and a second feed line adjacent to each other and holding a first section and a second section of each of the first feed line and the second feed line facing each other. The first feed line and the second feed line are arranged in the coupler to cause a direction of a current through the first section of the second feed line relative to a direction of a current through the first section of the first feed line to be opposite to a direction of a current through the second section of the second feed line relative to a direction of a current through the second section of the first feed line.