Reference : Online Determination of Grid Impedance Spectrum through Pseudo-Random Excitation of a...
Scientific congresses, symposiums and conference proceedings : Paper published in a journal
Engineering, computing & technology : Energy
http://hdl.handle.net/10993/16348
Online Determination of Grid Impedance Spectrum through Pseudo-Random Excitation of a Pulse Width Modulator
English
Neshvad, Surena mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Sachau, Jürgen mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
2014
Renewable Energy & Power Quality Journal
European Association for the Development of Renewable Energies, Environment and Power Quality
No
International
2172-038X
2172-038X
Spain
ICREPQ'14
7-4-2014 to 10-4-2014
European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ)
Cordoba
Spain
[en] Impedance ; PRBS ; PWM
[en] The last decade has seen a dramatic rise in renewable energy converters connected to the grid, consisting mostly of intermittent distributed generators on the medium or low voltage grid. Due to this evolution in energy transmission, improved monitoring and control of the distribution grid is becoming mandatory in order to efficiently integrate the new power sources and guarantee power quality, efficiency and reliability. Our paper describes a reliable and precise power grid impedance estimation method using an innovative scheme to control the Pulse Width Modulator’s pulse pattern on the inverters, in order to inject broad spectrum identification patterns. The generated harmonics and inter-harmonics will allow the online computation of the complete spectrum of the grid impedance at the Point of Common Coupling during normal operation. Simulations in typical grid situations verify that the proposed algorithm is robust to a realistic environment and can be used for automated feedback control.
Fonds National de la Recherche - FnR ; Creos
Researchers ; Professionals ; Students
http://hdl.handle.net/10993/16348

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