Abstract
SUMMARYPenetration of photovoltaic (PV) generation system into the power system may have some negative effects on stable operations of the power system; for example, on frequency control. Therefore, investigation of the short‐term fluctuations of PV generation is important as a precaution for further PV penetration. Since PV generation is approximately proportional to the incident solar radiation, this paper develops static and dynamic characteristic models for short‐term fluctuations of global solar radiation. The static characteristic model is a set of standard deviations which have been statistically estimated based on past observed data. The dynamic characteristic model consists of autoregressive models which are designed for actually observed time‐sequential short‐term fluctuation data. In both models, the clearness index is used to eliminate seasonal variation of solar radiation. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 186(2): 10–20, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22469
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