Conceptual design of a high reactive-power ferroelectric fast reactive tuner

IF 1.5 3区 物理与天体物理 Q3 PHYSICS, NUCLEAR
Ilan Ben-Zvi, Graeme Burt, Alejandro Castilla, Alick Macpherson, Nicholas Shipman
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Abstract

We present a novel design of a ferroelectric fast reactive tuner (FE-FRT) capable of modulating mega-VAR reactive power on a submicrosecond timescale. The high reactive power capability of our design extends the range of applications of reactive tuners to numerous applications. We present a detailed analytical model of the performance of a megawatt-class reactive power device and benchmark it against finite-element method eigenmode and frequency domain electromagnetic simulations. We introduce new features, including an annulus design for the ferroelectric capacitors and capacitive window coupling to the cavity. We consider thermal design issues and nonlinear effects in the ferroelectric. The model covers several configurations, allowing control of the frequency of superconducting and normal-conducting cavities in a variety of applications and frequencies. We calculate that the FE-FRT designed should be capable of handling around 0.45 MVAR of reactive power with around 3 kW of resistive losses, providing a frequency tuning range of 8 kHz in an example of 400 MHz cavity geometry.

Abstract Image

高反应功率铁电快速反应调谐器的概念设计
我们提出了一种新颖的铁电快速无功调谐器(FE-FRT)设计,它能够在亚微秒级调制兆伏特无功功率。我们设计的高无功功率能力将无功调谐器的应用范围扩展到众多应用领域。我们介绍了兆瓦级无功功率装置性能的详细分析模型,并将其与有限元法特征模式和频域电磁模拟进行了比较。我们引入了新功能,包括铁电电容器的环形设计和与空腔的电容窗口耦合。我们考虑了铁电的热设计问题和非线性效应。该模型涵盖多种配置,允许在各种应用和频率下控制超导和常导空腔的频率。根据我们的计算,所设计的 FE-FRT 应能处理约 0.45 MVAR 的无功功率和约 3 kW 的电阻损耗,在 400 MHz 的腔体几何示例中提供 8 kHz 的频率调节范围。
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来源期刊
Physical Review Accelerators and Beams
Physical Review Accelerators and Beams Physics and Astronomy-Surfaces and Interfaces
CiteScore
3.90
自引率
23.50%
发文量
158
审稿时长
23 weeks
期刊介绍: Physical Review Special Topics - Accelerators and Beams (PRST-AB) is a peer-reviewed, purely electronic journal, distributed without charge to readers and funded by sponsors from national and international laboratories and other partners. The articles are published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. It covers the full range of accelerator science and technology; subsystem and component technologies; beam dynamics; accelerator applications; and design, operation, and improvement of accelerators used in science and industry. This includes accelerators for high-energy and nuclear physics, synchrotron-radiation production, spallation neutron sources, medical therapy, and intense-beam applications.
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