Frequency Stability of Hierarchically Controlled Hybrid Photovoltaic-Battery-Hydropower Microgrids

Yajuan Guan, Juan Carlos Vasquez, Josep M. Guerrero, Dan Wu, Wei Feng, Yibo Wang

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Abstract

Hybrid photovolvaic battery-hydropower microgrids can increase electricity accessibility and availability in remote areas. In those microgrids with grid-connected and islanded modes capabilities, seamless transition between both modes is needed as well. However, the different resources with conventional constant P/Q and P/V controls coexisting in the microgrid may affect frequency stability. In this paper, a hierarchical control is proposed to perform power sharing among PV voltage source inverters (VSIs), while injecting the dispatched power to the main grid. Further, frequency stability analysis is presented based on small signal models of the hybrid PV-HP microgrid, including 2 MWp PV station, 15.2 MWh battery storage system, and 12.8 MVA hydropower plant. Simulation results of the microgrid and experimental results on a scaled-down laboratory prototype verify the effectiveness of the proposed hierarchical controller.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages8
PublisherIEEE Press
Publication dateSep 2014
Pages1573-1580
DOIs
Publication statusPublished - Sep 2014
Event2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, United States
Duration: 14 Sep 201418 Sep 2014

Conference

Conference2014 IEEE Energy Conversion Congress and Exposition (ECCE)
LocationPittsburgh
CountryUnited States
CityPittsburgh
Period14/09/201418/09/2014

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Keywords

  • Hybrid hydro-PV microgrid
  • Frequency stability
  • Hierarchical control

Cite this

Guan, Y., Vasquez, J. C., Guerrero, J. M., Wu, D., Feng, W., & Wang, Y. (2014). Frequency Stability of Hierarchically Controlled Hybrid Photovoltaic-Battery-Hydropower Microgrids. In Proceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE) (pp. 1573-1580). IEEE Press. https://doi.org/10.1109/ECCE.2014.6953606