Evaluation of Dynamic Var Support from PV Systems under Uncertain Weather Conditions

Eita Mizukami, Akihisa Kaneko, Yuji Takenobu, Satoru Akagi, Shinya Yoshizawa, Hideo Ishii, Yasuhiro Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Voltage ride-through (VRT) and dynamic voltage support (DVS) are advanced functions of photovoltaic (PV) systems that are expected to improve future power system stability. Toward the improvement in system stability, it is valuable for power system operators (PSOs) to evaluate the effects of these functions. However, it is not straightforward to evaluate the amount of volt-ampere reactive (var) injection from PV systems because var injection depends on weather conditions and on the terminal voltages of the PV systems during voltage sag. In addition, it is equally important to analyze var support from distribution systems (DSs) to accurately determine the amount of var injection in a power system since numerous PV systems are connected to DSs. In this study, we evaluate the var support at a substation of a DS with PV during a voltage sag under various weather conditions. The var injection was analyzed for several time zones and seasons to consider a change in solar radiation. A numerical simulation was conducted based on IEEE 13 Node Test Feeder Model with PV systems. The results indicated that there is a large variation in var support depending on seasons or time zones with different solar irradiance.

Original languageEnglish
Title of host publication7th International Youth Conference on Energy, IYCE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728139234
DOIs
Publication statusPublished - 2019 Jul
Event7th International Youth Conference on Energy, IYCE 2019 - Bled, Slovenia
Duration: 2019 Jul 32019 Jul 6

Publication series

Name7th International Youth Conference on Energy, IYCE 2019

Conference

Conference7th International Youth Conference on Energy, IYCE 2019
CountrySlovenia
CityBled
Period19/7/319/7/6

Keywords

  • Distribution Systems
  • Dynamic Voltage Support
  • Photovoltaic Systems
  • Var Support
  • Voltage Ride-Through

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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  • Cite this

    Mizukami, E., Kaneko, A., Takenobu, Y., Akagi, S., Yoshizawa, S., Ishii, H., & Hayashi, Y. (2019). Evaluation of Dynamic Var Support from PV Systems under Uncertain Weather Conditions. In 7th International Youth Conference on Energy, IYCE 2019 [8991569] (7th International Youth Conference on Energy, IYCE 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IYCE45807.2019.8991569