コアレス変圧器の遺伝的アルゴリズムに基づくパラメータ最適化設計に関する研究
Wenshuang Qin1, Yi Zhang1, Yufang Lu2
1School of Computer Science and Engineering, Guilin University of Technology, Guilin, 541004, Guangxi, China.
Scientific reports
|December 15, 2025
まとめ
遺伝的アルゴリズムを用いたコアレス変圧器の設計最適化により、伝送効率(η)が大幅に向上する。この手法は71.7%の効率を達成し、パフォーマンスを54%以上改善した。
科学分野:
- 電気工学
- パワーエレクトロニクス
- 電磁気学
背景:
- コアレス変圧器における伝送効率(η)は、複数のパラメータに影響される。
- 主な要因は、コイル間隔(H)、動作周波数(f₀)、負荷(R<0xE2><0x82><0x97>)、および実際の動作周波数(f)である。
研究 の 目的:
- 伝送効率(η)を最大化するためのコアレス変圧器の最適化設計を開発する。
- 変圧器の性能に対する設計パラメータの影響を調査する。
主な方法:
- 主要パラメータに基づいて伝送効率(η)を予測するためにランダムフォレスト回帰モデルを利用した。
- これらのパラメータ(f₀、H、R<0xE2><0x82><0x97>、f)を最大効率のために最適化するために遺伝的アルゴリズムを採用した。
- プロトタイプの平面コアレス変圧器回路を設計、シミュレーション、製造、テストした。
主要な成果:
- 最適化された平面コアレス変圧器は、71.7%の伝送効率(η)を達成した。
- これは、最適化されていない回路と比較して54.8%の改善を表す。
- 直接設計された非最適化回路と比較して、効率が17.7%向上したことを示した。
結論:
- 提案された遺伝的アルゴリズム最適化アプローチは、コアレス変圧器の効率を高める上で非常に効果的である。
- 最適化された設計は、電力伝送回路のパフォーマンスを大幅に向上させる。
関連する概念動画
Equivalent Circuits for Practical Transformers
1.3K
The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
1.3K
Energy Losses in Transformers
1.3K
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary winding. However, in reality, the transformers always have some energy losses, and, hence, the output power obtained at the secondary winding is less than the input power at the primary winding due to energy losses.
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
There are four main reasons for energy losses in transformers.
The first cause can be the high resistance of the...
1.3K
Three-Winding Transformers
655
Three identical single-phase transformers can be configured to form a three-phase transformer connection, which involves high-voltage and low-voltage windings. The high-voltage windings are denoted by capital letters A-B-C, while the low-voltage windings are labeled with lowercase letters a-b-c, representing their respective phases. This notation helps distinguish between the high and low voltage sides of the transformer.
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
655
The Ideal Transformer
1.3K
In single-phase two-winding transformers, two windings are coiled around a magnetic core characterized by cross-sectional area A and magnetic permeability μ. A phasor current i1 enters the left winding while i2 exits the right winding, establishing the fundamental working of the transformer through electromagnetic principles.
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's tangential...
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's tangential...
1.3K
Types Of Transformers
1.4K
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
1.4K
Generator Voltage Control
602
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand, use...
602


