A class-E amplifier for a loosely coupled inductive power transfer system with multiple receivers

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Sutor A, Heining M, Buchholz R
Zeitschrift: Energies
Jahr der Veröffentlichung: 2019
Band: 12
Heftnummer: 6
ISSN: 1996-1073


Abstract

We present a method for optimizing the electronic power system for a new type of photobioreactor or photoreactor in general. In the case of photobioreactors, photosynthetic active microorganisms or cells are grown. A novel concept for the illumination of photobioreactors was necessary, as the external illumination of those reactors leads to a limited penetration depth of light. Due to the limited penetration depth, no standard reactors can be use for cultivation, but custom made reactors with very small volume to surface ratio have to be used. This still prevents the technology from a large scale industrial impact. The solution we propose in this paper is an internal illumination via Wireless Light Emitters. This increases the manageable culture volume of photosynthetic active microorganisms or cells. The illumination system is based on floating light emitters, which are powered wirelessly by near field resonant inductive coupling. The floating light emitters are able to illuminate a photobioreactor more homogeneously than external illumination systems do. We designed a class-E amplifier and field coils to produce an intermediate frequency electromagnetic field inside the reactor. An appropriate magnetic flux density was found to be approx. B = 1mT and the driving frequency is f = 176 kHz. We conducted experiments with a laboratory size photoreactor. The cultivation volume was 30 L containing up to 3000 WLEs. The maximum electric power input was more than 300W and we calculated an efficiency of up to 76%.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Buchholz, Rainer Prof. Dr.
Lehrstuhl für Bioverfahrenstechnik
Heining, Martin
Lehrstuhl für Bioverfahrenstechnik


Einrichtungen weiterer Autorinnen und Autoren

UMIT - Private Universität für Gesundheitswissenschaften, Medizinische Informatik und Technik GmbH


Zitierweisen

APA:
Sutor, A., Heining, M., & Buchholz, R. (2019). A class-E amplifier for a loosely coupled inductive power transfer system with multiple receivers. Energies, 12(6). https://dx.doi.org/10.3390/en12061165

MLA:
Sutor, Alexander, Martin Heining, and Rainer Buchholz. "A class-E amplifier for a loosely coupled inductive power transfer system with multiple receivers." Energies 12.6 (2019).

BibTeX: 

Zuletzt aktualisiert 2019-11-05 um 08:08