Power ramp-rates of utility-scale PV systems under passing clouds: Module-level emulation with cloud shadow modeling

Xiaoyang Chen, Yang Du, Enggee Lim, Huiqing Wen, Ke Yan and James Kirtley

Applied Energy, 2020, vol. 268, issue C, No S030626192030492X

Abstract: The short-term power output variability of solar photovoltaic (PV) systems caused by passing clouds is becoming a major concern for grid operators. As the penetration of utility-scale PV systems boosts, the rapid power fluctuations greatly challenge the grid transient stability. In this regard, the concept of power ramp-rate (RR) has been recently imposed to quantify the PV fluctuations, and a series of ramp regulations are implemented by utilities. However, due to the limitations in terms of high-resolution simulation of utility-scale PV systems and reproducing cloud shadow natures, current studies still show deficiencies in comprehensively investigating the RRs rising from both endogenous and exogenous factors during cloud shadow transitions.

Keywords: Photovoltaic; Solar variability; Ramp-rate; Partial shading; Cloud shadow modeling (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (17)

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DOI: 10.1016/j.apenergy.2020.114980

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