Electromagnetic Forces on a Metal Disk in an Alternating Magnetic Field

Basu, Samir; Srivastava, K. D.

doi:10.1109/tpas.1969.292478

Cited by 24 publications

(21 citation statements)

References 6 publications

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“…Namely, critical parameters determined for the IDD not only cannot lead to permanent destruction of any of the drive components (coil, disc), but even elastic deformations mainly of the disc must be limited to small values in order to ensure proper cooperation with the hybrid switch. Therefore, in most papers in which not only electromagnetic but also thermal and mechanical phenomena were analyzed, it was assumed that the conditions under which the IDD should operate justify treating the coupling between these phenomena as a weak interaction [3,4,52]. Owing to the use of IDD in hybrid circuit breakers, solutions [42][43][44][45] were developed which allow for arc-free switching-off of short-circuit currents.…”

Section: Inductive Dynamic Drive (Idd)mentioning

confidence: 99%

“…The equation describing the magnetic field in the conductive region was obtained: An attempt to analytically solve the problem from the circumferential-field perspective for a system with cylindrical symmetry was undertaken in [3,52]. The authors of these papers, in order to determine the equivalent inductance L E of the coil-disc system, also used the method of current filaments performing a single-layer discretization of the disc.…”

mentioning

confidence: 99%

“…In [52], the concept of determining the vector potential as the sum of the potentials generated by the coil and the eddy currents of the disc was adopted:…”

mentioning

confidence: 99%

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Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

et al. 2022

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This article is a study of the research development of electrodynamic phenomena occurring in ultra-fast electrodynamic drives. These types of linear drives are among the fastest, not only because of the huge accelerations achieved, but, above all, because of the extremely short reaction time. For this reason, electrodynamic drives are used in hybrid short-circuit breakers. The phenomena occurring in this type of drive are actually magneto-thermo-elastic in nature, but the coupling of these phenomena should be considered weak if the criteria for repeatable operation in a hybrid circuit breaker system are met. The authors have been researching this type of drive for many years through not only experimental studies, but also primarily simulation studies developing models of such drives. The authors present the history of the development starting from the first works of Thomson, and Kesserling and ending with the most current models, including mainly their own. This article presents mainly works studying electrodynamic phenomena. Thermal and mechanical phenomena were comprehensively presented by the authors in previous papers.

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Section: Inductive Dynamic Drive (Idd)mentioning

confidence: 99%

mentioning

confidence: 99%

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Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

et al. 2022

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“…Assuming that the spatial and temporal dependences can be separated in equation (10), the loadF will be treated as a linear combination of a series of timedependent static loads…”

Section: Governing Equations For Dynamic Stress and Strain Calculationmentioning

confidence: 99%

“…For example, S. Basu and K.D. Srivastava 10,11 proposed a simple theoretical analysis of electromagnetic force and eddy current in the actuator based on the equivalent inductance, in which all magnetic flux of the coil is treated as passing through the metal plate without leakage. W. Li et al 12,13 developed an equivalent circuit model to analyze the dynamic characteristics of actuator by dividing the metal plate into multi segments.…”

Section: Introductionmentioning

confidence: 99%

Analysis of structure strength for direct current high-speed switch based on flexible body theory

Gong²,

et al. 2020

Advances in Mechanical Engineering

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The Thomson coil actuator has an important application prospect in direct current high-speed switch due to its short respond time and fast operation speed. However, the large electromagnetic impact force during the opening process may bring the stress deformation of movable components and thus cause damage to the mechanism. Therefore, the dynamic stress and strain evaluation of the moving parts is very important for the design and optimization of direct current high-speed switch. In this article, a novel method of structure strength analysis based on the flexible body theory is established for direct current high-speed switch. The electromagnetic and buffer forces in the rapid opening process are calculated, and then the stress and strain distribution of the key components are obtained. Finally, the strain test circuit of the key components is built. By comparing the simulation and experimental results of dynamic strain, the validity of the established simulation model is verified.

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Vacuum Switching Technology for Future of Power Systems

Yao

Wang

et al. 2022

Engineering

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Electromagnetic Forces on a Metal Disk in an Alternating Magnetic Field

Cited by 24 publications

References 6 publications

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

Analysis of structure strength for direct current high-speed switch based on flexible body theory

Vacuum Switching Technology for Future of Power Systems

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