Ira Devi Sara, Norzanah Binti Rosmin
This paper analyses the effects of uncertainties in the spectral response (SR) measurement using the polychromatic filter (PF) method on the SR measurement result. The advantage of using polychromatic filter method in the SR measurement is that the beam intensity illuminating the device under test becomes much higher compared to the conventional monochromatic filter (MF) method. The PF method only requires a set of measured short-circuit currents, a set of irradiance spectra corresponding to the measured currents, a spectral response model, and a fitting algorithm for SR determination. The SR characteristic curve of a solar photovoltaic device is obtained by fitting the device measured current to the photocurrent formula. The contribution of the uncertainty of different input parameters to the SR determination can be quantified and understood by using the Monte Carlo method. The sensitivity analysis shows that the accuracy of the SR determination obtained using the PF method significantly depends on the uncertainty in choosing appropriate initial values for the coefficients of the chosen SR model. © 2021 IEEE.
Syiah Kuala University, Electrical Engineering and Computer Systems Dept, 23111, Indonesia; UTM, Faculty of Electrical Engineering, Power Department, Skudai, Johor, Malaysia
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