NDLI: Characterisation and assessment of the harmonic emission of grid-connected photovoltaic systems

Content Provider	IEEE Xplore Digital Library
Author	Chicco, G. Schlabbach, J. Spertino, A.F.
Copyright Year	2005
Description	Author affiliation: Politec. di Torino, Turin (Chicco, G.; Schlabbach, J.)
Abstract	This paper presents and discusses the results of several measurements carried out on photovoltaic systems connected to LV-grid, from the harmonic distortion viewpoint. The PV-system inverters are characterised by different ratings, in the range of 850 W up to 3 kW, and different structures, including low-frequency and high-frequency transformers. The harmonics emission and the total harmonic distortion (THD) were measured over a period of several days having different solar radiation and by this different generated power. The results indicated a strong dependency between the THD and the generated power, in such a way that the THD is always high when the generated power is low. The influence of network impedance measuring signal and of the modulation of the pulse width modulation (PWM) is analysed and discussed. Procedures to assess the connection of the PV-systems to the grid as per international standards are presented. The results indicated that, in practical cases, the measured harmonic emission may exceed the typical values obtained in laboratory tests.
Starting Page	1
Ending Page	7
File Size	589729
Page Count	7
File Format	PDF
ISBN	9785932080344
DOI	10.1109/PTC.2005.4524744
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-27
Publisher Place	Russia
Access Restriction	Subscribed
Rights Holder	Energy Systems Institute
Subject Keyword	Photovoltaic systems Pulse width modulation Power generation Solar power generation Distortion measurement Pulse measurements Harmonic distortion Pulse width modulation inverters Transformers Power system harmonics grid connection harmonic emission
Content Type	Text
Resource Type	Article

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