Tampere University of Technology

TUTCRIS Research Portal

Kari Lappalainen

  1. 2019
  2. Published

    Fluctuation of PV array global maximum power point voltage during irradiance transitions caused by clouds

    Lappalainen, K. & Valkealahti, S., 18 Nov 2019, In : IET Renewable Power Generation. 13, 15, p. 2864-2870 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Photovoltaic Module Parametric Identification

    Spagnuolo, G., Lappalainen, K., Valkealahti, S. & Manganiello, P., 4 Nov 2019, 2019 International Conference on Clean Electrical Power (ICCEP). IEEE, p. 302-305 4 p. (International Conference on Clean Electrical Power).

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  4. E-pub ahead of print

    Characteristics of the cloud enhancement phenomenon and PV power plants

    Järvelä, M., Lappalainen, K. & Valkealahti, S., 2019, In : Solar Energy. 196, p. 137-145 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

  5. Published

    Identification and Diagnosis of a Photovoltaic Module Based on Outdoor Measurements

    Spagnuolo, G., Lappalainen, K., Valkealahti, S. & Manganiello, P., 2019, 2019 IEEE Milan PowerTech. IEEE, 6 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  6. 2018
  7. Published

    Cloud Enhancement Phenomenon and its Effect on PV Generators

    Järvelä, M., Lappalainen, K. & Valkealahti, S., 25 Sep 2018, 35th European Photovoltaic Solar Energy Conference and Exhibition (35th EU PVSEC), 24–28 September, 2018, Brussels, Belgium. p. 1964-1968

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  8. Published

    Size of a Basic Simulation Unit in PV System Partial Shading Studies

    Lappalainen, K. & Valkealahti, S., 2018, 35th European Photovoltaic Solar Energy Conference and Exhibition (35th EU PVSEC), 24–28 September, 2018, Brussels, Belgium. p. 1647-1651 5 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  9. Published

    Smoothing of Output Power Variation with Increasing PV Array Size

    Lappalainen, K. & Valkealahti, S., 2018, IEEE PES Innovative Smart Grid Technologies 2018 Asia Conference, Singapore. IEEE, p. 190-195 6 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  10. 2017
  11. Published

    Number of MPPs in PV Generators during Irradiance Transitions Caused by Moving Clouds

    Lappalainen, K. & Valkealahti, S., 7 Dec 2017, IEEE PES Innovative Smart Grid Technologies 2017 Asia Conference, Auckland, New Zealand. Auckland, New Zealand: IEEE, 7 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

  12. Published

    Output Power Variation and Mismatch Losses of Photovoltaic Power Generators Caused by Moving Clouds

    Lappalainen, K., 17 Nov 2017, Tampere University of Technology. 116 p. (Tampere University of Technology. Publication; vol. 1506)

    Research output: Book/ReportDoctoral thesisMonograph

  13. Published

    Output power variation of different PV array configurations during irradiance transitions caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 15 Mar 2017, In : Applied Energy. 190, p. 902-910 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

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