Triangular High-Frequency Transformer for Symmetric Three-Phase Flux
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Solution Overview
Problem
Existing high-frequency transformers with single-phase structures are inefficient and bulky due to asymmetrical magnetic circuits, leading to increased losses and complex wiring when attempting to achieve three-phase operation, as they require multiple independent iron cores.
Innovation Solution
A high-frequency transformer with an integrated equilateral triangle iron core and symmetrically distributed primary and secondary windings, allowing for symmetrical three-phase magnetic circuits and reducing losses by counteracting fundamental wave components, while using a single transformer to simplify wiring and reduce volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If three single-phase transformers are used to achieve three-phase input, then the symmetry of three-phase magnetic circuits is realized, but the device complexity, volume, and loss increase
Solution Approach 1:
The patent merges three separate single-phase transformers into a single integrated three-phase transformer with one unified iron core. The iron core contains three magnetic circuits that are spatially symmetrically arranged, allowing three-phase input to be processed simultaneously. This integration eliminates the need for separate transformers and reduces wiring complexity while maintaining magnetic circuit symmetry.
Solution Approach 2:
The unified iron core serves multiple functions by containing three distinct magnetic circuits within a single structure. Each magnetic circuit handles one phase of the three-phase input, allowing the single transformer to perform the work of three separate transformers while sharing common structural components and magnetic path materials.
2Stability of the object's composition
If three single-phase transformers are used to achieve three-phase input, then the symmetry of three-phase magnetic circuits is realized, but the volume increases
Solution Approach 1:
The patent merges three separate single-phase transformers into a single integrated three-phase transformer with one unified iron core. The iron core contains three magnetic circuits that are spatially symmetrically arranged, allowing three-phase input to be processed simultaneously. This integration eliminates the need for separate transformers and reduces wiring complexity while maintaining magnetic circuit symmetry.
3Ease of manufacture
If rectangular or C-shaped iron cores are spliced to form the iron core, then the iron core can be manufactured, but air gaps and leakage inductance are introduced
Solution Approach 1:
The patent employs an iron core with curved or rounded corners instead of sharp rectangular angles. This curvature design eliminates the air gaps that would form at the joints of spliced rectangular or C-shaped cores. The continuous curved path provides uninterrupted magnetic flux flow, reducing leakage inductance while maintaining ease of manufacturing through standardized core sections.
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 solution effectively reduces losses and simplifies the transformer's structure, achieving efficient three-phase operation with reduced volume and complexity, and enhancing the transformer's efficiency and service life by eliminating air gaps and leakage inductance.
Implementation Method 1
a high-frequency transformer is a core device for an alternating current (AC)/direct current (DC) hybrid distribution network to realize AC/AC and DC/DC power transformation
Implementation Method 2
an iron core, primary windings and secondary windings. The iron core is of an integrated equilateral triangle structure
Data Source
AI summary
A high-frequency transformer includes: an iron core, primary windings and secondary windings, wherein the iron core is of an integrated equilateral triangle structure, the primary windings and the secondary windings are uniformly wound around three sides of the iron core, and the primary windings and/or the secondary windings are symmetrically distributed on the three sides.