Characterization of silicon based photovoltaic cells using broadband impedance spectroscopy

TY - GEN

T1 - Characterization of silicon based photovoltaic cells using broadband impedance spectroscopy

AU - Olayiwola, Olufemi I.

AU - Barendse, Paul S.

N1 - Publisher Copyright: © 2016 IEEE.

PY - 2016

Y1 - 2016

N2 - The growth in photovoltaic installations makes characterization and condition monitoring essential. In this paper, broadband impedance spectroscopy is implemented for characterization and performance monitoring of silicon solar cells for near real-time operation. An optimized quasi-logarithmic broadband signal is designed to estimate the impedance response of the cells. Electrochemical equivalent circuits of the frequency response are then modelled from the obtained Nyquist plots and the cell parameters are extracted using complex nonlinear least squares. This procedure can be applied for direct estimation of the internal parameters of the silicon solar cells/module at different operating points. Results show that the implemented broadband characterization yields good correlation to the conventional electrochemical impedance spectroscopy at significantly reduced procedural time and equipment cost.

AB - The growth in photovoltaic installations makes characterization and condition monitoring essential. In this paper, broadband impedance spectroscopy is implemented for characterization and performance monitoring of silicon solar cells for near real-time operation. An optimized quasi-logarithmic broadband signal is designed to estimate the impedance response of the cells. Electrochemical equivalent circuits of the frequency response are then modelled from the obtained Nyquist plots and the cell parameters are extracted using complex nonlinear least squares. This procedure can be applied for direct estimation of the internal parameters of the silicon solar cells/module at different operating points. Results show that the implemented broadband characterization yields good correlation to the conventional electrochemical impedance spectroscopy at significantly reduced procedural time and equipment cost.

KW - broadband

KW - characterization

KW - impedance

KW - optimization

KW - Photovoltaic

KW - silicon

UR - http://www.scopus.com/inward/record.url?scp=85015356794&partnerID=8YFLogxK

U2 - 10.1109/ECCE.2016.7854913

DO - 10.1109/ECCE.2016.7854913

M3 - Conference contribution

AN - SCOPUS:85015356794

T3 - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings

BT - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016

Y2 - 18 September 2016 through 22 September 2016

ER -