Rhombus Zigzag Transformer Wiring for Non-Uniform Voltage Control
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Solution Overview
Problem
Existing three-phase transformers face inefficiencies and safety issues due to overlapping lead connection wires, especially at high voltages, leading to potential damage and reduced capacity utilization.
Innovation Solution
A three-phase rhombus wiring transformer with symmetrical zigzag connections is proposed, where lead wires are spatially separated and connected to form a zigzag structure on both sides, ensuring coils are wound in the same direction and avoiding wire intersections, thus enhancing safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional three-phase transformer wiring is used, then the transformer can handle basic power transformation, but the lead connection wires overlap and intersect, causing safety issues and potential damage at high voltages
Solution Approach 1:
The patent applies rhombus wiring configuration that spatially separates lead connection wires by utilizing three-dimensional space arrangement. The lead wires are connected through a rhombus-shaped path that prevents intersection, transforming the traditional planar wiring into a three-dimensional spatial configuration that eliminates wire contact while maintaining electrical connectivity.
Solution Approach 2:
The patent divides the winding structure into multiple segments with distinct lead connection points. By segmenting the winding paths and creating separate connection zones, the lead wires are naturally separated in space, preventing intersection and improving safety without requiring additional insulation or protective measures.
2Reliability
If more windings are added to handle harmonics and phase recovery, then power quality improves, but the transformer size increases and efficiency decreases
Solution Approach 1:
The patent implements a multi-functional winding structure where the same windings simultaneously perform power transformation, harmonic filtering, and phase recovery functions. The rhombus wiring configuration enables the transformer to handle multiple objectives using the same physical components, eliminating the need for separate harmonic filters or phase recovery devices, thus maintaining high efficiency while improving power quality.
Solution Approach 2:
The patent merges multiple functions (power transformation, harmonic attenuation, phase recovery) into a single integrated transformer structure. By combining these functions in one device rather than using separate components, the overall system efficiency is maintained while achieving comprehensive power quality improvement.
3Reliability
If zigzag wiring structure is used for harmonic filtering, then harmonic attenuation improves, but the lead wires must cross and overlap, creating safety hazards
Solution Approach 1:
The patent modifies the traditional zigzag wiring by implementing a rhombus configuration that utilizes three-dimensional spatial arrangement. This dimensional change allows the wiring to achieve the harmonic filtering benefits of zigzag connection while preventing lead wire intersection through proper spatial separation of connection points and paths.
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 proposed design effectively handles uneven voltages with a smaller size and stronger phase recovery capability, reducing the risk of damage and improving power quality by eliminating wire crossings and enhancing power factor control.
Implementation Method 1
a three-phase power transformer includes: a plurality of zigzag wiring parts that are symmetrically-structured and are connected to a power source system having three-phase wiring for supplying an alternating current power source to a load
Data Source
AI summary
An active power transformer for controlling non-uniform voltage, of the present invention, comprises a plurality of zigzag wiring parts that are symmetrically-structured and are connected to a power source system having three-phase wiring for supplying an alternating current power source to a load, wherein the plurality of zigzag wiring parts has a core having three legs, four windings of a three-phase transformer are wound around each leg in the same direction so as to be symmetrical to each other, a second lead wire of a winding of a neighboring phase is connected to a first lead wire of a winding for the transformer, which is wound around a leg of each phase, through a lead connection wire so as to form a terminal of each phase, and the lead wires of the remaining windings are connected to a neutral point, and the respective lead connection wires do not intersect with each other, and thus a safer active power transformer for controlling non-uniform voltage is possible.