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Equalizing effect of the fluctuation in areal irradiance; Chiikinai ni okeru shugo nissha no hendo yokusei koka

Abstract

Aggravation in electric power quality is concerned because of irregular output power caused by a large number of photovoltaic power generation systems connected with the power grids. However, averaging of the irregularity may be expected in a wide area due to time-based shift in cloud movements. In order to identify this effect, insolation data were measured in terms of planes at multiple points in the city of Tsukuba to discuss the fluctuation equalizing effect. The system is composed of nine instruments to measure insolation plane characteristics, nine terminal station units, and a base station unit. The insolation data express the horizontal plane insolation intensity at a sampling interval of one minute. Insolation fluctuation (standard deviation of insolation fluctuation components) was defined as an index of the insolation fluctuation. Based on the index, an averaging effect when the photovoltaic systems are installed in a number of locations was considered by using statistic estimation. As a result, the averaging effect was obtained even in an area with a radius of several kilometers. In addition, the measurement data revealed that there is an upper limit in the effect depending on the number of system installation. It was also made clear that the data  More>>
Authors:
Minowa, J; Kurokawa, K; [1]  Otani, K; Tsuda, I; Sakuta, K [2] 
  1. Tokyo University of Agriculture and Technology, Tokyo (Japan)
  2. Electrotechnical Laboratory, Tsukuba (Japan)
Publication Date:
Nov 25, 1997
Product Type:
Miscellaneous
Report Number:
ETDE/JP-98753622; CONF-9711143-
Reference Number:
SCA: 140100; 140600; PA: JP-98:0G1091; EDB-98:072254; SN: 98001948781
Resource Relation:
Conference: 1997 JSES/JWEA joint conference, Taiyo/furyoku energy koen, Aichi (Japan), 28-29 Nov 1997; Other Information: PBD: 25 Nov 1997; Related Information: Is Part Of Proceedings of JSES/JWEA Joint Conference (1997); PB: 454 p.; Taiyo/Furyoku energy koen ronbunshu (1997)
Subject:
14 SOLAR ENERGY; INSOLATION; STATISTICAL DATA; FLUCTUATIONS; REGIONAL ANALYSIS; INHIBITION; PHOTOVOLTAIC POWER PLANTS; INTERCONNECTED POWER SYSTEMS; CLOUDS; ISOTROPY; PYRHELIOMETERS; SOLAR FLUX; PYRANOMETERS; SAMPLING; STOCHASTIC PROCESSES
OSTI ID:
625355
Research Organizations:
Japan Solar Energy Society, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98753622; TRN: JN98G1091
Availability:
Available from Japan Solar Energy Society, 44-14, Yoyogi 2-chome, Shibuya-ku, Tokyo, (Japan); OSTI as DE98753622
Submitting Site:
NEDO
Size:
pp. 301-304
Announcement Date:
Jul 30, 1998

Citation Formats

Minowa, J, Kurokawa, K, Otani, K, Tsuda, I, and Sakuta, K. Equalizing effect of the fluctuation in areal irradiance; Chiikinai ni okeru shugo nissha no hendo yokusei koka. Japan: N. p., 1997. Web.
Minowa, J, Kurokawa, K, Otani, K, Tsuda, I, & Sakuta, K. Equalizing effect of the fluctuation in areal irradiance; Chiikinai ni okeru shugo nissha no hendo yokusei koka. Japan.
Minowa, J, Kurokawa, K, Otani, K, Tsuda, I, and Sakuta, K. 1997. "Equalizing effect of the fluctuation in areal irradiance; Chiikinai ni okeru shugo nissha no hendo yokusei koka." Japan.
@misc{etde_625355,
title = {Equalizing effect of the fluctuation in areal irradiance; Chiikinai ni okeru shugo nissha no hendo yokusei koka}
author = {Minowa, J, Kurokawa, K, Otani, K, Tsuda, I, and Sakuta, K}
abstractNote = {Aggravation in electric power quality is concerned because of irregular output power caused by a large number of photovoltaic power generation systems connected with the power grids. However, averaging of the irregularity may be expected in a wide area due to time-based shift in cloud movements. In order to identify this effect, insolation data were measured in terms of planes at multiple points in the city of Tsukuba to discuss the fluctuation equalizing effect. The system is composed of nine instruments to measure insolation plane characteristics, nine terminal station units, and a base station unit. The insolation data express the horizontal plane insolation intensity at a sampling interval of one minute. Insolation fluctuation (standard deviation of insolation fluctuation components) was defined as an index of the insolation fluctuation. Based on the index, an averaging effect when the photovoltaic systems are installed in a number of locations was considered by using statistic estimation. As a result, the averaging effect was obtained even in an area with a radius of several kilometers. In addition, the measurement data revealed that there is an upper limit in the effect depending on the number of system installation. It was also made clear that the data are affected by distances to connect the photovoltaic power generation systems with each other and by climatic conditions. 3 refs., 6 figs.}
place = {Japan}
year = {1997}
month = {Nov}
}