Tampere University of Technology

TUTCRIS Research Portal

Kari Lappalainen

  1. 2013
  2. Published

    Effects of the Sharpness of Shadows on the Mismatch Losses of PV Generators under Partial Shading Conditions Caused by Moving Clouds

    Lappalainen, K., Mäki, A. & Valkealahti, S., 2013, 28th European Photovoltaic Solar Energy Conference and Exhibition, 30 September - 4 October 2013, Paris. p. 4081-4086 6 p. (European Photovoltaic Solar Energy Conference).

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

  3. Published

    Effects of the Size of PV Arrays on Mismatch Losses under Partial Shading Conditions Caused by Moving Clouds

    Lappalainen, K., Mäki, A. & Valkealahti, S., 2013, 28th European Photovoltaic Solar Energy Conference and Exhibition, 30 September - 4 October 2013, Paris. p. 4071-4076 6 p. (European Photovoltaic Solar Energy Conference).

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

  4. Published

    Operation of TUT Solar PV Power Station Research Plant under Partial Shading Caused by Snow and Buildings

    Lobera, D. T., Mäki, A., Huusari, J., Lappalainen, K., Suntio, T. & Valkealahti, S., 2013, In : International Journal of Photoenergy. 2013, p. 1-13 13 p., 837310.

    Research output: Contribution to journalArticleScientificpeer-review

  5. 2014
  6. Published

    Aurinkokennoista saadaan paras tuotto kirkkaalla, kylmällä säällä

    Lappalainen, K., 2014, In : Sähköala. 1-2, p. 40-42 3 p.

    Research output: Contribution to journalArticleProfessional

  7. Published

    Recognition of irradiance transitions caused by moving clouds harmful to the operation of PV systems

    Lappalainen, K. & Valkealahti, S., 2014, 29th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2014, Proceedings of the international Conference, September 22 - September 26, 2014, Amsterdam, The Netherlands. Bokhoven, T. P., Jäger-Waldau, A. & Helm, P. (eds.). Munich, Germany: WIP, p. 2650-2653 4 p.

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

  8. Published

    Sizing energy storage to be used in parallel with grid connected PV inverters to balance the output power fluctuations due to varying insolation

    Reaz Sunny, M., Lappalainen, K. & Valkealahti, S., 2014, Proceedings of the 29th European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC, September 22 - September 26, 2014, Amsterdam, The Netherlands. Bokhoven, T. P., Jäger-Waldau, A. & Helm, P. (eds.). Munich, Germany: WIP, p. 2880-2883 4 p.

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

  9. 2015
  10. Published

    Recognition and modelling of irradiance transitions caused by moving clouds

    Lappalainen, K. & Valkealahti, S., Feb 2015, In : Solar Energy. 112, p. 55-67 13 p.

    Research output: Contribution to journalArticleScientificpeer-review

  11. Published

    Recognition of shading events caused by moving clouds and determination of shadow velocity from solar radiation measurements

    Lappalainen, K. & Valkealahti, S., 14 Sep 2015, 31st European Photovoltaic Solar Energy Conference and Exhibition (31st EU PVSEC), 14– 18 September, 2015, Hamburg, Germany . p. 1568-1573 6 p.

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

  12. 2016
  13. Published

    Mathematical Parametrisation of Irradiance Transitions Caused by Moving Clouds for PV System Analysis

    Lappalainen, K. & Valkealahti, S., 2016, 32nd European Photovoltaic Solar Energy Conference and Exhibition (32nd EU PVSEC), 20–24 June, 2016, Munich, Germany . p. 1485-1489 5 p.

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

  14. Published

    Analysis of shading periods caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 1 Oct 2016, In : Solar Energy. 135, p. 188-196 9 p.

    Research output: Contribution to journalArticleScientificpeer-review

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