NDLI: The PWM strategies of grid-connected distributed generation active NPC inverters

Content Provider	IEEE Xplore Digital Library
Author	Lin Ma Xinmin Jin Kerekes, T. Liserre, M. Teodorescu, R. Rodriguez, P.
Copyright Year	2009
Description	Author affiliation: Dipartimento di Elettrotecnica ed, Elettronica Politecnico di Bari, E. Orabona 4-70125, Italy (Liserre, M.) \|\| Beijing Jiao Tong University, No.3 of Shangyuan Residence, Haidian District, 10004, China (Lin Ma; Xinmin Jin) \|\| Aalborg University, Pontoppidanstraede 101, 9220 Aalborg East, Denmark (Kerekes, T.; Teodorescu, R.) \|\| IEEE Department of Electrical Engineering, Technical University of Catalonia, Barcelona, Spain (Rodriguez, P.)
Abstract	The Neutral Point Clamped topology due to high efficiency, low leakage current and EMI, its integration is widely used in the distributed generation (DG) systems. However the main disadvantage of the NPC inverter is given by an unequal distribution of the losses in the semiconductor devices, which leads to an unequal distribution of temperature. By using the Active NPC topology, the power losses distribution problem is alleviated. The modulation strategy is a key issue for losses distribution in this topology. In this paper two known strategies are discussed and a new proposed PWM strategy, namely the Adjustable Losses Distribution (ALD) PWM strategy is proposed for better losses distribution in the Active NPC (ANPC) topology. Simulations using Simulink and the PLECS toolbox have been done for evaluating efficiency of different NPC topologies and some experimental results are presented in this paper to validate the operation of the different strategies.
Starting Page	920
Ending Page	927
File Size	1157096
Page Count	8
File Format	PDF
ISBN	9781424428939
DOI	10.1109/ECCE.2009.5316449
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic systems Temperature distribution Semiconductor devices Multilevel systems Pulse width modulation Topology Lead compounds Solar power generation Pulse modulation Pulse width modulation inverters Distributed control Leakage current Photovoltaic power systems
Content Type	Text
Resource Type	Article

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