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Estimation of Total Output of Solar Photovoltaic Generators Widely Distributed in Future Power Systems
Author(s) -
Kataoka Yoshihiko
Publication year - 2014
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22560
Subject(s) - photovoltaic system , function (biology) , power (physics) , mean squared error , control theory (sociology) , computer science , signal (programming language) , frequency band , electronic engineering , mathematics , engineering , statistics , physics , telecommunications , electrical engineering , bandwidth (computing) , control (management) , quantum mechanics , evolutionary biology , artificial intelligence , biology , programming language
SUMMARY This paper deals with estimation of total output of solar photovoltaic (PV) generators widely distributed in future power systems. In the proposed framework of estimation, the estimated signal in each frequency band is a linear combination of observed signals. The observation gain for each observed signal in each frequency band is designed through following two steps. First, an estimation error function is defined using assumed root mean square of output of PVs, predicted distribution of future PVs in the area, and correlation coefficients, which are identified in advance based on actual synchronized measurements of PVs. Second, observation gain in each frequency band is designed so as to minimize the estimation error function. The appropriateness of the proposed framework of estimation is demonstrated in small‐ and large‐scale examples.