Providing Ancillary Services with Photovoltaic Generation in Multi-Timescale Grid Operation: Preprint

Xin Fang, Jin Tan, Haoyu Yuan, Shengfei Yin, Jianhui Wang

Research output: Contribution to conferencePaper

Abstract

With photovoltaic (PV) generation substantially increases, electric power systems need more flexible resources that can provide ancillary services to mitigate the variability and uncertainty of the PV generation. On the one hand, the increase of PV generation necessitates the needs of more flexible resources. On the other hand, PV generation, because of its low operation cost, has been replacing the conventional generation in the system which is the main flexible resources in the current system. Consequently, there is a trend to require the renewable generation including PV to provide flexible ancillary services to further accommodate more PV integration. This paper proposes a multi-timescale grid operation model considering the various control strategies of PV providing different ancillary services. Numerical case studies demonstrate that with PV providing both regulation reserve and primary frequency reserve, the system operating costs and PV curtailment will be reduced significantly. It shows that not only the system reliability but also PV's profitability can be improved with PV providing more ancillary services.
Original languageAmerican English
Number of pages8
StatePublished - 2021
Event2020 IEEE Power and Energy Society General Meeting (IEEE PES GM) -
Duration: 3 Aug 20206 Aug 2020

Conference

Conference2020 IEEE Power and Energy Society General Meeting (IEEE PES GM)
Period3/08/206/08/20

NREL Publication Number

  • NREL/CP-5D00-75321

Keywords

  • ancillary services
  • multi-timescale grid operation
  • PV generation

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