Kari Lappalainen

Latest publications

• Effects of the Operating Point of Photovoltaic Strings on Sizing of DC- and AC-Connected Energy Storage Systems for Power Smoothing

  Lappalainen, K., Oct 2024, (E-pub ahead of print) In: Advanced Energy and Sustainability Research. 12 p., 2400199.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Photovoltaic module series resistance identification at its maximum power production

  Lappalainen, K., Piliougine, M., Valkealahti, S. & Spagnuolo, G., 2024, In: Mathematics and Computers in Simulation. 224, Part A, p. 50-62

  Research output: Contribution to journal › Article › Scientific › peer-review

• Comparing solar inverter design rules to subhourly solar resource simulations

  Zamora Zapata, M., Lappalainen, K., Kankiewicz, A. & Kleissl, J., Sept 2023, In: Journal of Renewable and Sustainable Energy. 15, 5, 10 p., 053501.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Comparison between Decentralized and Centralized Energy Storage Systems for Power Ramp Rate Control of PV Systems

  Lappalainen, K. & Kleissl, J., 2023, 40th European Photovoltaic Solar Energy Conference and Exhibition. EU PVSEC, 6 p. (Proceedings (EU PVSEC)).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

• Effects of Capacity Factor on Sizing of Energy Storage Systems for Electric Vehicle Charging Plazas

  Lappalainen, K. & Kleissl, J., Dec 2023, 2023 IEEE PES Innovative Smart Grid Technologies - Asia (ISGT Asia). IEEE, 5 p. (IEEE Innovative Smart Grid Technologies - Asia).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

• Effects of Control Strategy on Sizing of Energy Storage Systems for PV-Wind Power Plants

  Talvi, M. & Lappalainen, K., 2023, 40th European Photovoltaic Solar Energy Conference and Exhibition. EU PVSEC, 7 p. (Proceedings (EU PVSEC)).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

• Effects of Ramp Rate Limit on Sizing of Energy Storage System for PV-Wind Power System

  Talvi, M., Roinila, T. & Lappalainen, K., 2023, Automaatiopäivät 2023 - Automation Days 2023 Proceedings. Suomen Automaatioseura, 3 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

• Effects of Ramp Rate Limit on Sizing of Energy Storage Systems for PV, Wind and PV–Wind Power Plants

  Talvi, M., Roinila, T. & Lappalainen, K., 2023, In: Energies. 16, 11, 18 p., 4313.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Sizing of stationary energy storage systems for electric vehicle charging plazas

  Lappalainen, K. & Kleissl, J., 2023, In: Applied Energy. 347, 8 p., 121496.

  Research output: Contribution to journal › Article › Scientific › peer-review

• Analysis of the operation of PV strings at the MPP closest to the nominal MPP voltage instead of the global MPP based on measured current–voltage curves

  Lappalainen, K. & Valkealahti, S., 20 Jan 2022, In: EPJ Photovoltaics. 13, 10 p., 4.

  Research output: Contribution to journal › Article › Scientific › peer-review