著者

松岡 孝一 近藤 稔 清水 康弘

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.124, no.2, pp.175-182, 2004 (Released:2004-05-01)

参考文献数

12

被引用文献数

8 11

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Ventilated type traction motors are widely used for railway vehicles. However, they require overhauls to clean up inside them. Besides, they are a major noise source in railway vehicles. To solve these problems, we propose a totally-enclosed type traction motor using permanent magnet synchronous motor, that have the same weight power ratio as that of conventional ventilated type traction motor. In this paper, we report the test results of the proposed motor. The test results demonstrates that the temperature rise values are within its limit and the noise level is decreased by 10 dB compared to conventional motor.

著者

松岡 孝一 近藤 圭一郎 小林 芳隆 白石 茂智

出版者

The Institute of Electrical Engineers of Japan

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.121, no.11, pp.1176-1184, 2001-11-01 (Released:2008-12-19)

参考文献数

6

被引用文献数

1 6

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In the conventional rail vehicle, traction motor is mounted on the truck frame, and the shaft torque is transmitted to the wheel set via flexible coupling and reduction gearing. The reduction gearing is effective to increase the torque, but gives rise to maintenance, noise and transmission loss. To overcome these problems and simplify the truck structure, we conceived an idea of wheel mounted direct drive traction motor system without the reduction gearing, and started the development.In this system, the traction motor is required to produce more torque and reduce the mass. So we introduced permanent magnet synchronous motor for the first time in the rail vehicle. Here, we propose fundamental structures of the wheel mounted direct drive traction motors, and present a prototype wheel mounted traction motor model, which is manufactured by trial as the first step of the development. We overcame the problem of temperature rise of permanent magnet, through analysis and improvement of the magnetic structure.

著者

松岡孝一郎 講述

出版者

東京精神医学会

巻号頁・発行日

vol.第2巻, 1925

著者

松岡 孝一 小片 富美子

出版者

医学書院

巻号頁・発行日

pp.391-398, 1984-04-15

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抄録 甲状腺機能亢進症ないしバセドウ病に伴う精神症状はよく知られている。また,その病象は原因の如何にかかわらず,過活動を中心としたある共通した特徴を持っていることも周知の事実である。しかし稀にではあるが,本来の病像とは逆の,すなわち能動性が減退し,感情の表出に乏しく,挙動も遅鈍で活気を欠き,だらしなく無関心な生活態度を示すといったapathetic stateを示すものが存在するという。著者は若年者で,この稀な臨床症状を呈し抗甲状腺剤で精神身体症状の消失した2症例を経験した。症例を検討すると思春期という心身の発達的過程の時期でありapathetic stateの発症に心因あるいは心的外傷体験が状況因子として密接に関連していることが推測された。そこで症例を報告するとともに本来の過活動性を示す甲状腺機能亢進症との相違を検討し,若干の考察を加えた。

著者

松岡 孝一

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.126, no.11, pp.729-731, 2006-11-01 (Released:2007-02-06)

参考文献数

14

被引用文献数

2 2

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本記事に「抄録」はありません。

著者

近藤 圭一郎 秦 広 結城 和明 長沼 克範 松岡 孝一 長谷部 寿郎

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 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society (ISSN:09136339)

巻号頁・発行日

vol.125, no.4, pp.348-354, 2005-04-01

参考文献数

3

被引用文献数

2 3

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This paper is aimed at providing the designing method of a permanent magnet synchronous motor (PMSM) control system for the high-speed and the single-phase AC powered Gauge Changing Train (GCT). The state-of-the-art electrical motive unit is equipped with downsized direct drive type PMSMs for the simplified gauge changeable truck. Due to the feeding the AC single phase power, we propose a beat-less control for PMSMs. We verify the development results of designing procedures by the experimental results of operation on a high-speed test line in Colorado, USA.

著者

松岡 孝一 村本 宏美

出版者

The Institute of Electrical Engineers of Japan

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.9, pp.1049-1053, 1997-08-20 (Released:2008-12-19)

参考文献数

11

著者

近藤 圭一郎 秦 広 結城 和明 長沼 克範 松岡 孝一 長谷部 寿郎

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.125, no.4, pp.348-354, 2005 (Released:2005-07-01)

参考文献数

6

被引用文献数

2 3

---

This paper is aimed at providing the designing method of a permanent magnet synchronous motor (PMSM) control system for the high-speed and the single-phase AC powered Gauge Changing Train (GCT). The state-of-the-art electrical motive unit is equipped with downsized direct drive type PMSMs for the simplified gauge changeable truck. Due to the feeding the AC single phase power, we propose a beat-less control for PMSMs. We verify the development results of designing procedures by the experimental results of operation on a high-speed test line in Colorado, USA.

著者

近藤 圭一郎 松岡 孝一 中沢 洋介

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.118, no.7-8, pp.900-907, 1998-07-01 (Released:2008-12-19)

参考文献数

10

被引用文献数

6 24

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We have been studying the aplication of permanent magnet synchronous motor (PMSM) for railway vehicle traction in order to reduce the weight and size of direct drive traction motor. As a part of this study establishing a current control system of PMSM suitable for railway vehicle traction should be investigated.In this paper we discuss about designing method of current control system mentioned above and suggest a method which is available under the condition of railway vehicle traction, low switching frequency and long digital calculating period. Next we investigate how to decide current response time constant Td and reach a conclusion that it is about 10ms is appropriate under some assumed condition. Then we checked this current control system for railway vehicle traction through experiments and studies of influence of parameter changing. Consequently we can recognize the current control system has satisfactory performance for railway vehicle traction.