New injection kicker modulators for HLS ring

Author

Shang, L. ; Wang, X.Q. ; Wang, L. ; Fan, K.J. ; Zhao, F. ; Feng, G.Y.

Author_Institution

NSRL, Hefei, China

Volume

5

fYear

2001

fDate

2001

Firstpage

4059

Abstract

This paper describes the new injection kicker modulators for HLS ring. In the new injection system, each kicker drives two kicker magnets in a parallel mode. The modulators can deliver a half-sine wave current with a bottom width of 3.5 μs, a peak current of 10 kA at the max repetition rate of 2 Hz. The 27 kV capacitor-charging circuit is based on constant-current, series-resonant, switching techniques. Simulated and measured waveforms of charging circuit are given. Basic formulae of designing a switching-mode series-resonant charging circuit are provided. Local control of the modulators is based on PLCs. Ladder Relay Logic program and performance of PLC controlling is described too

Keywords

electron accelerators; modulators; nuclear electronics; particle beam injection; storage rings; synchrotron radiation; 10 kA; 2 Hz; 27 kV; 3.5 mus; HLS storage ring; PLC control; injection kicker modulator; ladder relay logic; switching-mode constant-current series-resonant capacitor charging circuit; Coaxial components; Damping; High level synthesis; Inductance; Magnets; RLC circuits; Resonance; Switching circuits; Thyratrons; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.988344

Filename

988344