著者
石橋 亜友
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.135, no.3, pp.NL3_3-NL3_6, 2015 (Released:2015-03-01)
参考文献数
3

I am the chemistry girl. I discussed and took local issue as a big theme. And I focused on problem of solved in Lake Shinji. Discussing how to use solved.  I took it as a electric batteries.  From now I am going to explain the experiment I did.
著者
岡本 浩
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.128, no.7, pp.431-434, 2008-07-01 (Released:2008-07-01)
参考文献数
3
被引用文献数
2 2

本記事に「抄録」はありません。
著者
神谷 淳文 大村 愛花 佐藤 匠悟 白崎 圭亮
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.141, no.1, pp.36-39, 2021-01-01 (Released:2021-01-01)
参考文献数
1

1.はじめに電気・機械系の大学や大学院を卒業した後の就職先としてはさまざまなものがある。例えば,電気機械製品を製作しているメーカに焦点を当てた場合,大きくは発電設備から,小さくはスマートフォンの電子回路まで,現代の暮らしを豊かにするための製品作りが行われている。これらの
著者
新田目 倖造
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.141, no.8, pp.551-558, 2021-08-01 (Released:2021-08-01)
参考文献数
10
被引用文献数
1

According to rapid increase of photovoltaic (PV) and wind generations in recent power system of Japan, the cases arise that power generation exceeds demand, so PV generations must be curtailed in some area. Hereafter, part of PV and wind generations may be curtailed in other areas too. In Europe and America too, similar surplus electricity are genetated and capacity of battery to withdraw surplus electricity are researched. This paper analyzes basic supplying characteristics of PV and wind generations in the simplified model system based on the actual power system in north-east area in Japan. As a result, when penetration ratio of PV or wind generation exceed 10~20%, surplus energy arise. It needs much capacity of battery to withdraw surplus energy, so supplying cost including battery is several ten times of cost of generation alone. If minimum output of stable generations except PV and wind generations could be lowered, surplus energy, capacity of battery and supplying cost will lower remarkably. But unit supplying cost of stable generations increases. According to introduction of much PV and wind generations, more coordination of power system and PV, wind generations is necessary, i.e. scaling up and cost down of energy storage, extension of power control range of stable generations, demand side management, etc.
著者
藤井 信男 小川 幸吉 千田 誠
出版者
一般社団法人 電気学会
雑誌
電気学会論文誌D(産業応用部門誌) (ISSN:09136339)
巻号頁・発行日
vol.117, no.6, pp.768-775, 1997-05-20 (Released:2008-12-19)
参考文献数
9
被引用文献数
1 2 1

The authors had proposed the revolving permanent magnet type magnetic wheel called the “magnet wheel”, which have both functions of induction repulsive type magnetic levitation and thrust. In this paper, the relation between magnetic poles and lift force or thrust characteristics is examined to grasp the performance. Five types of magnet wheels are discussed in the experimental study and four more types are used in the theoretical study with the three-dimensional numerical analysis. The following parameters are considered, they are magnetomotive force (mmf) of permanent magnet, thickness of magnet in magnetizing direction and the total volume of magnets, fundamental factor and distortion factor of the space mmf distribution of poles, pole pitch, diameter of magnet wheel, mechanical clearance, thickness and resistivity of conducting plate, etc. The result cleared the following. 1. The lift force per magnet volume is nearly proportional to the fundamental factor of space mmf distribution of pole. The low degree space harmonic mmf is effective to increase lift force. 2. The driving power per lift force is almost independent of configuration of the primary member including pole arrangement and position against the secondary conducting plate respectively, and only depends on the resistance of conducting plate. 3. In both the “partial overlap type” and “tilt type” magnet wheels, many number of poles with the sufficiently large pole pitch is useful. In the tilt type the use with a small tilt angle is desirable.
著者
後藤 真孝
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.132, no.9, pp.630-633, 2012-09-01 (Released:2012-09-01)
参考文献数
11
被引用文献数
1 1

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著者
伊勢田 哲治
出版者
一般社団法人 電気学会
雑誌
電気学会研究会資料. FIE, 教育フロンティア研究会
巻号頁・発行日
pp.21-26, 2014-12

<教育フロンティア研究会> 京都大学吉田キャンパス総合研究11号館, 12月13日(土) 13:00〜17:30, テーマ「技術倫理」
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.125, no.1, pp.29-33, 2005 (Released:2007-02-02)

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