A 12 kV solid state high voltage pulse generator for a bench top PEF machine

Author

Wang, Changjiang ; Zhang, Q.H. ; Streaker, Charles

Author_Institution

Dept. of Food Sci. & Technol., Ohio State Univ., Columbus, OH, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

1347

Abstract

High voltage pulsed electric field (PEF) is increasingly used for nonthermal food processes. This paper presents a design of an IGBT based 12 kV solid state high voltage pulse generator. A simple main circuit topology is employed in this pulse generator to reduce the cost and meanwhile still to meet specified requirements for PEF food processing. Intelligent IGBT modules, rated 1200 V and 1200 A, are used as power switches in the inverter circuit. A sophisticated grounding system is implemented to solve EMI caused by high integration of the equipment. In order to shape output pulse voltage wave, a dedicated DC bus for the inverter is developed to minimize stray inductance in the current loops. Experimental results are shown in this paper

Keywords

DC-AC power convertors; bipolar transistor switches; electric fields; insulated gate bipolar transistors; invertors; power semiconductor switches; pulse generators; pulsed power supplies; pulsed power switches; switching circuits; 12 kV; 1200 A; 1200 V; EMI; IGBT; bench top PEF machine; circuit topology; current loops; grounding system; inverter circuit; nonthermal food processes; power switches; pulsed electric field; solid-state high-voltage pulse generator; stray inductance; Circuit topology; Costs; Electromagnetic interference; Grounding; Insulated gate bipolar transistors; Inverters; Pulse generation; Shape; Solid state circuits; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.883047

Filename

883047