著者
七原 俊也
出版者
一般社団法人 電気学会
雑誌
電気学会誌 (ISSN:13405551)
巻号頁・発行日
vol.140, no.1, pp.12-13, 2020-01-01 (Released:2020-01-01)

1.はじめに上田睆亮氏は,電気回路の非線型振動に関わる研究に携わり,後にカオスと呼ばれるようになった現象を世界に先駆けて発見された。また同期機と電力系統の相互作用にかかわる研究など幅広い分野で研究を行い,成果を挙げてこられた。これらの分野の研究・教育を通じ,多数の後進の
著者
七原 俊也
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)
巻号頁・発行日
vol.129, no.5, pp.645-652, 2009-05-01 (Released:2009-05-01)
参考文献数
14
被引用文献数
7 13

Wind power provokes increasing concerns on its impacts on a power system as many wind power generators have been integrated to a power system. One of the concerns is a challenge to keep supply-and-demand balance in a power system.Battery energy storage systems (BESS) installed at a wind farm are considered as a promising option for the challenge. Two types of operation strategies were proposed for its operation: fluctuation mitigation and scheduled output types. On the other hand, in order to constitute an economical BESS, selecting battery size as small as possible is vital. However, for the scheduled output operation, no study has been published both on the required battery size and on a methodology to examine the size.This paper proposes a methodology to evaluate the required kWh capacity of battery for the scheduled output operation using accumulated prediction error of a wind farm. The methodology evaluates a standard deviation of accumulated prediction error with autocovariance functions of prediction error. Based upon the statistical characteristics obtained for actual prediction error of wind power, the paper presents results of a sample study to show the effectiveness of the methodology.