Tampere University of Technology

TUTCRIS Research Portal

Kari Lappalainen

  1. 2017
  2. Published

    Effects of irradiance transition characteristics on the mismatch losses of different electrical PV array configurations

    Lappalainen, K. & Valkealahti, S., 2017, In : IET Renewable Power Generation. 11, 2, p. 248-254

    Research output: Contribution to journalArticleScientificpeer-review

  3. Published

    Photovoltaic mismatch losses caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 2017, In : Solar Energy. 158, p. 455-461 7 p.

    Research output: Contribution to journalArticleScientificpeer-review

  4. Published

    Simulation Resolution of PV System Partial Shading Studies

    Lappalainen, K. & Valkealahti, S., 2017, 33rd European Photovoltaic Solar Energy Conference and Exhibition (33rd EU PVSEC), 25–29 September, 2017, Amsterdam, The Netherlands. p. 1973-1977 5 p.

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

  5. 2016
  6. Published

    Apparent velocity of shadow edges caused by moving clouds

    Lappalainen, K. & Valkealahti, S., 15 Nov 2016, In : Solar Energy. 138, p. 47-52 6 p.

    Research output: Contribution to journalArticleScientificpeer-review

  7. Published

    Effects of irradiance transitions on the output power fluctuations of different PV array configurations

    Lappalainen, K. & Valkealahti, S., Nov 2016, 2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia). IEEE, p. 705-711 7 p.

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

  8. 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

  9. 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

  10. 2015
  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. 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

  13. 2014
  14. 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

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