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 | 98 | 2017 |
Photovoltaic mismatch losses caused by moving clouds K Lappalainen, S Valkealahti Solar Energy 158, 455-461, 2017 | 80 | 2017 |
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 | 76 | 2013 |
Recognition and modelling of irradiance transitions caused by moving clouds K Lappalainen, S Valkealahti Solar Energy 112, 55-67, 2015 | 67 | 2015 |
Analysis of shading periods caused by moving clouds K Lappalainen, S Valkealahti Solar Energy 135, 188-196, 2016 | 61 | 2016 |
Characteristics of the cloud enhancement phenomenon and PV power plants M Järvelä, K Lappalainen, S Valkealahti Solar Energy 196, 137-145, 2020 | 58 | 2020 |
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 | 55 | 2017 |
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 | 54 | 2017 |
Estimation of the largest expected photovoltaic power ramp rates K Lappalainen, GC Wang, J Kleissl Applied Energy 278, 115636, 2020 | 33 | 2020 |
Apparent velocity of shadow edges caused by moving clouds K Lappalainen, S Valkealahti Solar Energy 138, 47-52, 2016 | 32 | 2016 |
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 | 29 | 2020 |
Number of maximum power points in photovoltaic arrays during partial shading events by clouds K Lappalainen, S Valkealahti Renewable energy 152, 812-822, 2020 | 29 | 2020 |
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 | 25 | 2022 |
Experimental study of the maximum power point characteristics of partially shaded photovoltaic strings K Lappalainen, S Valkealahti Applied Energy 301, 117436, 2021 | 24 | 2021 |
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 | 21 | 2020 |
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 | 19 | 2013 |
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 | 15 | 2019 |
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 | 14 | 2022 |
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 | 14 | 2016 |
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 | 14 | 2013 |