A simple modification to improve the immunity of linear electromagnetic actuators against disturbing magnetic field

Wang, Rumeng; Yang, Yong; Lu, Yiwei; Zhang, Ming

doi:10.1016/j.jmmm.2022.169125

Cited by 3 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…By now, a small test platform was established at J-TEXT, as shown in figure 12(a). It can generate a magnetic field over 200 mT in a cubic space with a side length of 0.3 m, and the field inhomogeneity is only 1.05 [73]. A 2.1 m test platform was built at ASIPP, as shown in figure 12(b).…”

Section: Magnetic Field Immunity Test Platformmentioning

confidence: 99%

“…The immunity of the LEA against an SMF can also be enhanced by optimizing its structure. An optimized LEA structure, by simply adding two small iron legs, as shown in figure 14, is proposed in [73]. The iron legs change the magnetic field distribution in the LEA, and significantly reduce the MFI of the LEA.…”

Section: Failure Of Linear Electromagnetic Actuators (Lea)mentioning

confidence: 99%

See 1 more Smart Citation

Fusion power supply advances by the J-TEXT engineering team

Zhang¹,

Zhang²,

Wang³

et al. 2022

Plasma Sci. Technol.

Self Cite

View full text Add to dashboard Cite

In order to meet the stringent requirements of fusion power supply for large-scale fusion devices, the J-TEXT engineering team has carried out key technology research and applications in several important directions of fusion power supply. This article presents the advances made by the J-TEXT engineering team in recent years in the following areas: (1) high-voltage power supply for auxiliary heating system; (2) breakdown protection device for auxiliary heating power supply; (3) magnetic field compatibility; (4) high-voltage pulsed power supply for field reversed configuration; (5) large physics experimental facility control system. The research backgrounds, technical progress, test results, applications, summaries and prospects are described in detail in each part. These innovative research results and valuable engineering experience can promote the progress of fusion power supply technology, and also lay a foundation for the development of power supplies with higher parameters in the future.

show abstract

Section: Magnetic Field Immunity Test Platformmentioning

confidence: 99%

Section: Failure Of Linear Electromagnetic Actuators (Lea)mentioning

confidence: 99%

Fusion power supply advances by the J-TEXT engineering team

Zhang¹,

Zhang²,

Wang³

et al. 2022

Plasma Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…К основным методам модификации полимеров, способствующим изменению морфологии поверхности, относятся: облучение, деформация, воздействие электромагнитными полями, обработка химическими реагентами и т.д. [37][38][39] [54]), при физическом воздействии (напылении металлического покрытия [55]), структура макромолекул самого полимера остается неизменной. Таким образом, выбирая способ и режим модификации поверхности, адгезионными, лиофильными, трибологическими и многими другими свойствами полимерных материалов можно управлять эффективно [56][57][58].…”

Section: Introductionunclassified

A Biomimetic Approach to the Creation of Polymer Materials with Improved Tribological Properties

Grigoriev,

Isaev,

Pervukhin

et al. 2024

Math.Biol.Bioinf.

View full text Add to dashboard Cite

The work is devoted to the use of methods of applied mathematics and statistics for the formalization and mathematical modeling of the structure of shark skin as a prototype of new polymer materials for shipbuilding purposes. A technique for mathematical modeling of biological objects is described, and a method for using a biomimetic approach for the design of planar composite polymer materials with improved lyophilic adhesion properties is proposed. Because of studying images of shark skin obtained using high-resolution optical (HRO) and scanning electron (SEM) microscopy, we found that its texture is anisotropic. Quantitative analysis of BOM and SEM images made it possible to rationalize the choice of synthetic digital models intended for simulation prototyping of maximally and minimally texturally isotropic polymer samples using 3D printing and gas-phase surface modification.

show abstract

“…The ITER organization conducted a SMF analysis that shows that 50 mT magnetic field contour will occupy a space with a radius over 25 m, where a lot of electrical and electronic devices will be mounted [2]. Such a high SMF will affect the reliable operation of electrical and electronic devices mounted around the tokamak, which will, in turn, affect the reliable operation of the tokamak device [5].…”

Section: Introductionmentioning

confidence: 99%

Dynamic performance of linear electromagnetic actuators in a stray magnetic field: theoretical analysis and experimental verification

Wang

Yang²,

Wang³

et al. 2022

Plasma Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Linear electromagnetic actuators (LEAs) are widely used in tokamaks, but they are extremely sensitive to and are prone to fail in high-strength stray magnetic field (SMF) which is usually a concomitant with tokamaks. In this paper, a multi-physics coupling analysis model of LEA including magnetic field, electric circuit and mechanical motion is proposed, and the dynamic characteristics of LEA in SMF are studied in detail based on the proposed model. The failure mechanism of LEA in SMF is revealed, and the influence of SMF on the dynamic performance of LEA is studied and quantified. It is shown that, the failure threshold of the LEA selected in this work under the rated condition is 27 mT and 14 mT in the positive and negative direction, respectively. Under a typical SMF of 10 mT in the negative direction, the closing time of the LEA will be extended 40%, while its opening time will be shortened about 10%. Experimental tests are also conducted, which verify the validity of the proposed model and the analysis results. This paper provides a basis for the diamagnetic optimization design of LEA, and it is of great significance to ensure the reliable operation of tokamak.

show abstract

A simple modification to improve the immunity of linear electromagnetic actuators against disturbing magnetic field

Cited by 3 publications

References 31 publications

Fusion power supply advances by the J-TEXT engineering team

Fusion power supply advances by the J-TEXT engineering team

A Biomimetic Approach to the Creation of Polymer Materials with Improved Tribological Properties

Dynamic performance of linear electromagnetic actuators in a stray magnetic field: theoretical analysis and experimental verification

Contact Info

Product

Resources

About