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Design Optimization and Electromagnetic Performance Investigation of a Magnetically Integrated Transformer-Type Controllable Reactor for Reactive Power Compensation

無効電力補償用磁気集積変圧器型可制御リアクトルの設計最適化と電磁性能調査 (AI 翻訳)

Wang X, Shen M, Fu P

Research Squareプレプリント2026-05-20#エネルギー転換経営インパクト: コスト削減対象セクター: power
DOI: 10.21203/rs.3.rs-9591934/v1
原典: https://doi.org/10.21203/rs.3.rs-9591934/v1

🤖 gxceed AI 要約

日本語

本論文は、再生可能エネルギー導入に伴う系統の無効電力補償ニーズに対応するため、磁気集積変圧器型可制御リアクトル（MI-TCR）を提案し、遺伝的アルゴリズムによる設計最適化と電磁・熱・構造連成FEM解析を行った。最適化により、±15MVARの無効電力調整範囲、80ms未満の応答時間、2.3%未満の高調波歪み、従来比18.7%の鉄損低減を達成し、10kVA試作機で4.2%の誤差で検証した。

English

This paper proposes a magnetically integrated transformer-type controllable reactor (MI-TCR) for reactive power compensation in power systems with high renewable penetration. Using genetic algorithm-based design optimization and multi-physics FEM, the MI-TCR achieves ±15 MVAR regulation, <80 ms response, <2.3% harmonic distortion, and 18.7% lower core losses than conventional designs, validated on a 10 kVA prototype within 4.2% error.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本では再生可能エネルギーの大量導入に伴い、配電系統の電圧維持や無効電力管理が重要課題となっており、本技術は系統安定化に寄与する可能性がある。ただし、実用化には更なる実証とコスト評価が必要。

In the global GX context

Globally, the integration of renewables increases the need for fast and reliable reactive power compensation. This paper offers a novel integrated transformer-reactor design that could improve grid stability and reduce losses, relevant for distribution network operators and equipment manufacturers.

👥 読者別の含意

🔬研究者:Provides a design optimization methodology for integrated electromagnetic devices, useful for further research in power electronics and grid stability.

🏢実務担当者:Offers a potential solution for reactive power compensation in distribution networks, but requires validation at larger scales.

🏛政策担当者:Highlights the importance of advanced reactive power compensation for renewable integration, informing grid planning and technology support policies.

📄 Abstract（原文）

<title>Abstract</title> <p>These increases in the application of renewable energy sources and nonlinear loads to the modern power systems have exacerbated the need to have rapid, dependable, and continuously variable reactive power compensation devices. Traditional solutions, including thyristor-controlled reactors and static VAR compensators, are plagued by harmonic distortion, multi-bulky multi-device topologies, and slow transient response. The current paper introduces the design optimization and detailed electromagnetic performance analysis of a magnetically integrated transformer-type controllable reactor (MI-TCR), which combines both voltage transformation and reactive power regulation by a smooth voltage with a single compact electromagnetic system. The proposed MI-TCR takes advantage of the saturation properties of a specially designed multi-limb iron core, whereby a DC-bias winding is used to adjust the operating point of the core to continuously adjust the effective AC inductance between rated and near-zero values. A multi-physics finite element model (FEM) system that is a combination of electromagnetic, thermal, and structural systems is developed to optimize the core geometry, winding arrangement, and air-gap allocation. A parametric search guided by a genetic algorithm is used to find parametric designs that are Pareto-optimal and reduce core losses, enhance reactive power regulation range, and minimize vibration noise. The results of the simulation show that the optimized MI-TCR would provide a reactive power regulation of +15 MVAR to -15 MVAR with a response time of less than 80 ms, harmonic distortion of less than 2.3 percent, and core losses of 18.7 percent less than those of conventional magnetically controlled reactor designs. The predictions in the FEA are supported by experimental validation on a 10 kVA laboratory prototype within a 4.2% error margin. The suggested design methodology provides a scalable route to the next generation of integrated electromagnetic devices to stabilize the distribution network voltage and reactive power in distribution networks.</p>

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