PHOTOVOLTAIC POWER GENERATOR OUTPUT ESTIMATION METHOD AND DEVICE, AND POWER SYSTEM MONITORING DEVICE USING SAME

Title:

PHOTOVOLTAIC POWER GENERATOR OUTPUT ESTIMATION METHOD AND DEVICE, AND POWER SYSTEM MONITORING DEVICE USING SAME

Document Type and Number:

WIPO Patent Application WO/2015/111473

Kind Code:

A1

Abstract:

In order to estimate the output of a photovoltaic power generator, from solar radiation values measured at limited points, the solar radiation amount in a location different from the solar radiation measurement points is estimated and an estimated error amount is calculated. This photovoltaic power generator output estimation method is for estimating the output of a photovoltaic power generator on the basis of measured solar radiation values, and involves: a first estimation method for estimating, from solar radiation meter installation point information, solar radiation meter measured values and photovoltaic power generator installation point information, the solar radiation amount at a photovoltaic power generator installation point; a second estimation method, other than the first estimation method, for estimating the solar radiation amount at the photovoltaic power generator installation point; an output estimation method for estimating the output of the photovoltaic power generator from the estimated solar radiation amounts and the rated capacity of the photovoltaic power generator; and an error estimation method for calculating an estimated error of the photovoltaic power generator output from the difference between the results of the first and second estimation method.

Inventors:

WATANABE MASAHIRO (JP)
YAMANE KENICHIRO (JP)
MATSUMOTO TAKUYA (JP)
KUMAGAI MASATOSHI (JP)
OONISHI TSUKASA (JP)
EGASHIRA RYO (JP)
MATSUDA KATSUHIRO (JP)
MURAKOSHI JUN (JP)
SATO TOMOYA (JP)

Application Number:

PCT/JP2015/050727

Publication Date:

July 30, 2015

Filing Date:

January 14, 2015

Export Citation:

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Assignee:

HITACHI LTD (JP)
TOHOKU ELECTRIC POWER CO (JP)
TOHOKU ELECTRIC MFG CO LTD (JP)

International Classes:

H02S50/00; H02J3/00; H02J13/00

Foreign References:

JP2006033908A	2006-02-02
JP2013253805A	2013-12-19
JP2013009492A	2013-01-10
JP2012044089A	2012-03-01
JP2011058814A	2011-03-24
JP2012010508A	2012-01-12

Attorney, Agent or Firm:

POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)

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