Study on a Magnetic Switch for Pulsed Power Conditioning System

Author

Fuchang, Lin ; Yi, Liu ; Xibo, Feng ; Gang, Liu

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., HuaZhong Univ. of Sci. & Technol. (HUST), Wuhan, China

Volume

40

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

1183

Lastpage

1189

Abstract

In order to protect the key elements (e.g., Xe flashlamps) from being damaged by the trigger impulse in pulsed power conditioning system (PPCS), a magnetic switch is used for isolating the high-voltage nanosecond impulse. The magnetic switch in PPCS is working along with the initial magnetization curve. The working principle and performance of the magnetic switch in PPCS is presented. Fe-based nanocrystalline is adopted as the material of magnetic core. According to the specific application, the dynamic characteristics of Fe-based nanocrystalline under nanosecond impulses were obtained experimentally. As the magnetization rate increases, the average relative permeability decreases due to magnetic viscosity and eddy current. The measured parameters of unsaturated inductance, saturated inductance, and saturation time are in agreement with the calculation ones. Finally, the experimental results of the magnetic switch in PPCS are presented.

Keywords

eddy currents; magnetic aftereffect; magnetic cores; magnetic permeability; magnetic switching; magnetisation; nanomagnetics; nanostructured materials; plasma switches; plasma transport processes; power system protection; pulsed power supplies; pulsed power switches; spark gaps; xenon; eddy current; high-voltage nanosecond impulse; magnetic core; magnetic permeability; magnetic switch; magnetic viscosity; magnetization curve; nanocrystalline materials; pulsed power conditioning system; saturated inductance; saturation time; trigger impulse; unsaturated inductance; Inductance; Magnetic circuits; Magnetic cores; Magnetomechanical effects; Saturation magnetization; Switches; Toroidal magnetic fields; Fe-based nanocrystalline; magnetic switch; magnetization curve; pulsed power conditioning system (PPCS);

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2012.2187355

Filename

6163412