Article | Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016 | Hardware-in-the-Loop Emulation of Three-Phase Grid Impedance for Characterizing Impedance-Based Instability Linköping University Electronic Press Conference Proceedings
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Title:
Hardware-in-the-Loop Emulation of Three-Phase Grid Impedance for Characterizing Impedance-Based Instability
Author:
Tuomas Messo: Department of Electrical Engineering, Tampere University of Technology, Finland Jussi Sihvo: Department of Electrical Engineering, Tampere University of Technology, Finland Tomi Roinila: Department of Automation Sciences and Engineering, Tampere University of Technology, Finland Tommi Reinikka: Department of Automation Sciences and Engineering, Tampere University of Technology, Finland Roni Luhtala: Department of Automation Sciences and Engineering, Tampere University of Technology, Finland
DOI:
10.3384/ecp17142129
Download:
Full text (pdf)
Year:
2018
Conference:
Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016
Issue:
142
Article no.:
018
Pages:
129-134
No. of pages:
6
Publication type:
Abstract and Fulltext
Published:
2018-12-19
ISBN:
978-91-7685-399-3
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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The amount of grid-connected power electronic converters is increasing as the world’s energy production shifts toward sustainable sources. Poor power quality and harmonic resonances have been reported which have been shown to be caused by grid-connected converters. Accurate modeling tools are required to characterize the conditions for instability and to design stable power-electronics-based power systems. Unstable behavior can be identi?ed by using models implemented in circuit simulators or using power-hardware-in-the-loop setups. The unstable resonance occurs when inverter control system interacts with the grid impedance. However, a very wide impedance-bank is required in the laboratory to test inverter stability when grid impedance is expected to vary signi?cantly. Moreover, stability tests are often limited to cases where grid impedance is approximated as an inductance. This paper proposes a method for emulating the grid impedance in a hardware-in-the-loop setup which eliminates the need for bulky passive components and allows arbitrary grid impedance to be emulated. As a result, the inverter can be tested with a varying grid impedance to determine the exact conditions for unstable behavior. Moreover, the grid impedance can be changed online to emulate the behavior of a time-varying power grid in real time.

Keywords: hardware-in-the-loop, grid impedance, emulation

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
Tuomas Messo, Jussi Sihvo, Tomi Roinila, Tommi Reinikka, Roni Luhtala
Title:
Hardware-in-the-Loop Emulation of Three-Phase Grid Impedance for Characterizing Impedance-Based Instability
DOI:
http://dx.doi.org/10.3384/ecp17142129
References:
No references available

Proceedings of The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, The 57th SIMS Conference on Simulation and Modelling SIMS 2016

Author:
Tuomas Messo, Jussi Sihvo, Tomi Roinila, Tommi Reinikka, Roni Luhtala
Title:
Hardware-in-the-Loop Emulation of Three-Phase Grid Impedance for Characterizing Impedance-Based Instability
DOI:
https://doi.org10.3384/ecp17142129
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