NDLI: A startup scheme for zero-voltage-switching PV inverter

Content Provider	IEEE Xplore Digital Library
Author	Jiangbei Xi Yenan Chen Min Chen Pingping Chen Dehong Xu
Copyright Year	2015
Description	Author affiliation: Inst. of Power Electron., Zhejiang Univ., Hangzhou, China (Jiangbei Xi; Yenan Chen; Min Chen; Pingping Chen; Dehong Xu)
Abstract	In order to guarantee all the switching devices of the inverter working in the safe operation area, zero voltage switching (ZVS) operation is needed even at the startup stage. To help the ZVS inverter achieving completely soft switching at the startup stage, a startup scheme is proposed. The startup scheme adds a pre-charge stage before the general startup stage. The pre-charge stage is realized by a simple pre-charge circuit and a ZVS pre-charge pulse sequence. The pre-charge circuit works before the general startup stage only and is guaranteed by principle to be deactivated during the normal operation stage. The pre-charge pulse sequence is designed to achieve ZVS operation in the pre-charge stage. The experiment on a 3kW prototype shows the startup scheme realizes ZVS operation at the startup stage and the voltage stress on the power devices is minimized.
Starting Page	2333
Ending Page	2340
File Size	1672373
Page Count	8
File Format	PDF
ISBN	9781479967353
DOI	10.1109/APEC.2015.7104674
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Zero voltage switching Switches Inverters Capacitors Inductors Clamps Stress pre-charge pulse sequence startup scheme zero voltage switching PV inverter pre-charge circuit
Content Type	Text
Resource Type	Article

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