NDLI: Current sourcing isolated grid connected inverter

Content Provider	IEEE Xplore Digital Library
Author	Zeltser, I. Ben-Yaakov, S.
Copyright Year	2010
Description	Author affiliation: Power Electronics Laboratory, Department of Electrical and Computer Engineering Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel (Zeltser, I.; Ben-Yaakov, S.)
Abstract	This study proposes a soft switched Output Current Sourcing (OCS) grid connected inverter that applies a high frequency isolation transformer. Current sourcing at the output implies that, ideally, the injected current will be independent of the load voltage. The current injected to the line is controlled by varying the switching frequency and PWM at low currents. The system does not require the sensing of the output current or even the line voltage — except for synchronization. This is in contrast to the conventional voltage sourcing inverters where the small disturbance at the line voltage may lead to current run away and consequently a tight current feedback loop must be applied. The proposed topology and several proposed control approaches were analyzed and verified by simulations and by experiments. The simulation and experimental results confirm the theoretical analysis and show that the proposed inverter can be operated with no sensing of the line current or voltage except for synchronization.
Starting Page	2203
Ending Page	2206
File Size	249693
Page Count	4
File Format	PDF
ISBN	9781424453085
DOI	10.1109/ISCAS.2010.5537202
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-30
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pulse width modulation inverters Voltage Inductors Frequency synchronization Topology Resonance Bridge circuits Rectifiers Switching frequency Pulse width modulation
Content Type	Text
Resource Type	Article

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