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Kari Lappalainen
Kari Lappalainen
Assistant Professor (tenure track), Tampere University
Dirección de correo verificada de tuni.fi - Página principal
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Output power variation of different PV array configurations during irradiance transitions caused by moving clouds
K Lappalainen, S Valkealahti
Applied energy 190, 902-910, 2017
972017
Photovoltaic mismatch losses caused by moving clouds
K Lappalainen, S Valkealahti
Solar Energy 158, 455-461, 2017
782017
Operation of TUT solar PV power station research plant under partial shading caused by snow and buildings
D Torres Lobera, A Mäki, J Huusari, K Lappalainen, T Suntio, ...
International journal of photoenergy 2013, 2013
762013
Recognition and modelling of irradiance transitions caused by moving clouds
K Lappalainen, S Valkealahti
Solar Energy 112, 55-67, 2015
672015
Analysis of shading periods caused by moving clouds
K Lappalainen, S Valkealahti
Solar Energy 135, 188-196, 2016
602016
Characteristics of the cloud enhancement phenomenon and PV power plants
M Järvelä, K Lappalainen, S Valkealahti
Solar Energy 196, 137-145, 2020
562020
Effects of PV array layout, electrical configuration and geographic orientation on mismatch losses caused by moving clouds
K Lappalainen, S Valkealahti
Solar Energy 144, 548-555, 2017
552017
Effects of irradiance transition characteristics on the mismatch losses of different electrical PV array configurations
K Lappalainen, S Valkealahti
IET Renewable Power Generation 11 (2), 248-254, 2017
532017
Estimation of the largest expected photovoltaic power ramp rates
K Lappalainen, GC Wang, J Kleissl
Applied Energy 278, 115636, 2020
322020
Apparent velocity of shadow edges caused by moving clouds
K Lappalainen, S Valkealahti
Solar Energy 138, 47-52, 2016
322016
Number of maximum power points in photovoltaic arrays during partial shading events by clouds
K Lappalainen, S Valkealahti
Renewable energy 152, 812-822, 2020
292020
Analysis of the cloud enhancement phenomenon and its effects on photovoltaic generators based on cloud speed sensor measurements
K Lappalainen, J Kleissl
Journal of Renewable and Sustainable Energy 12 (4), 2020
282020
A novel procedure for identifying the parameters of the single-diode model and the operating conditions of a photovoltaic module from measured current–voltage curves
H Kalliojärvi-Viljakainen, K Lappalainen, S Valkealahti
Energy Reports 8, 4633-4640, 2022
252022
Experimental study of the maximum power point characteristics of partially shaded photovoltaic strings
K Lappalainen, S Valkealahti
Applied Energy 301, 117436, 2021
242021
Effects of the sharpness of shadows on the mismatch losses of PV generators under partial shading conditions caused by moving clouds
K Lappalainen, A Mäki, S Valkealahti
Proceedings of 28th European photovoltaic solar energy conference, 4081-4086, 2013
192013
Virtual sensing of photovoltaic module operating parameters
K Lappalainen, P Manganiello, M Piliougine, G Spagnuolo, S Valkealahti
IEEE Journal of Photovoltaics 10 (3), 852-862, 2020
172020
Fluctuation of PV array global maximum power point voltage during irradiance transitions caused by clouds
K Lappalainen, S Valkealahti
IET Renewable Power Generation 13 (15), 2864-2870, 2019
152019
Experimental comparison between various fitting approaches based on RMSE minimization for photovoltaic module parametric identification
K Lappalainen, M Piliougine, G Spagnuolo
Energy Conversion and Management 258, 115526, 2022
142022
Effects of the size of PV arrays on mismatch losses under partial shading conditions caused by moving clouds
K Lappalainen, A Mäki, S Valkealahti
no. September, 2013
142013
Effects of irradiance transitions on the output power fluctuations of different PV array configurations
K Lappalainen, S Valkealahti
2016 IEEE Innovative Smart Grid Technologies-Asia (ISGT-Asia), 705-711, 2016
132016
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