NDLI: Research of a single-stage buck-boost inverter under dual mode modulation

Content Provider	IEEE Xplore Digital Library
Author	Yu Tang Yaohua He Xianmei Dong Shaojun Xie
Copyright Year	2013
Description	Author affiliation: Jiangsu key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China (Yu Tang; Yaohua He; Xianmei Dong; Shaojun Xie)
Abstract	The output voltage range of photovoltaic (PV) cell is widely influenced by the light, temperature and so on. The inverter used in PV system must achieve inversion with a wide range of DC input voltage. A single-stage buck-boost inverter with fewer inductors and capacitors is proposed in this paper based on the topology of full bridge+Boost AC/AC, which is just suitable for PV system, achieving inversion and boosting with a wide range of input. Two modulation methods are compared: constant step-up ratio modulation and dual mode modulation. Along with the relationship of the input DC voltage and the reference AC voltage, the converter complete buck or boost inversion with different equivalent circuits and there are fewer switches working at high frequency in dual mode modulation, which is in favor of the system with high efficiency. Simulation and experimental results are presented to verify the proposed topology can achieve dual mode operation with wide range of input voltage in single-stage power conversion.
Sponsorship	IEEE Ind. Electron. Soc.
Starting Page	1230
Ending Page	1235
File Size	1141091
Page Count	6
File Format	PDF
ISBN	9781479902248
ISSN	1553572X
DOI	10.1109/IECON.2013.6699308
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-10
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Inductors Inverters Bridge circuits Equivalent circuits Frequency modulation Switches dual-mode PV single-stage inverter buck-boost inverter
Content Type	Text
Resource Type	Article

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