Fast modeling of flux trapping cascaded explosively driven magnetic flux compression generators

To predict the performance of flux trapping cascaded flux compression generators, a calculation model based on an equivalent circuit is investigated. The system circuit is analyzed according to its operation characteristics in different steps. Flux conservation coefficients are added to the driving...

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Bibliographic Details
Published in:Review of scientific instruments 2013-01, Vol.84 (1), p.014703-014703
Main Authors: Wang, Yuwei, Zhang, Jiande, Chen, Dongqun, Cao, Shengguang, Li, Da, Liu, Chebo
Format: Article
Language:English
Subjects:
Circuits
Compressing
Computer programs
Computer simulation
Flux
Generators
Mathematical models
Trapping
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Summary:To predict the performance of flux trapping cascaded flux compression generators, a calculation model based on an equivalent circuit is investigated. The system circuit is analyzed according to its operation characteristics in different steps. Flux conservation coefficients are added to the driving terms of circuit differential equations to account for intrinsic flux losses. To calculate the currents in the circuit by solving the circuit equations, a simple zero-dimensional model is used to calculate the time-varying inductance and dc resistance of the generator. Then a fast computer code is programmed based on this calculation model. As an example, a two-staged flux trapping generator is simulated by using this computer code. Good agreements are achieved by comparing the simulation results with the measurements. Furthermore, it is obvious that this fast calculation model can be easily applied to predict performances of other flux trapping cascaded flux compression generators with complex structures such as conical stator or conical armature sections and so on for design purpose.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4775488