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Realization of solid state modulator for application in PEF-based food processing

STSM by Yassine Bellebna, PhD Student

Period of mission: from 24/04/2014 to 23/06/2014

Home institution: APELEC Laboratory, Djillali Liabes University, Sidi Bel Abbes, Algeria

Host institution: Laboratory of Pulsed Power Advanced Applications Research Group, ISEL (Instituto Superior de Engenharia de Lisboa), Lisbon, Portugal

There are many types of commercially available, high voltage, (>several kilovolts), pulse generators. These generators vary widely in performance and should be chosen according to load requirements. Examples of performance parameters are voltage output, rise time, pulse width, fall time, repetition rate, peak power, and average power. These generators also differ in circuit design and switch type. Circuit designs are categorized into two types of energy storage methods: 1) capacitive and 2) inductive. The most common switch types are reed, spark gap, and solid state. In most cases, the switch type determines the generator performance. The purpose of the STSM was the realization of a pulse generator of several kilo volts (up to 6 kV) by the method of energy storage capacitive. This pulse generator used a fast switch half bridge which formed two MOSFETs in series. A necessary prior study was done according to value of the load to choose the adequate capacity; this study has allowed an optimal functioning of pulse generator. The mission was finished by studying voltage drop of impulsion depending on the load, the pulse duration and frequency of repetition In order to design a high-voltage pulse generator with minimum voltage drop. This pulse generator will use later in applications of food processing.

Poster presentation(s) originating from this mission

Event 1st World Congress on Electroporation and Pulsed Electric Fields in Biology, Medicine and Food & Environmental Technologies
Location Portorož/Slovenia
Period

06/09 - 10/09/2015

Authors Mohammed Hamza Bermaki, Abdelkader Semmak, Matej Reberšek, Yassine Bellebna, Damijan Miklavčič, Amar Tilmatine
Title Development of a Marx-type PEF generator using IGBT switches

 


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