松嶋 徹 (マツシマ トオル)

MATSUSHIMA Tohlu

写真a

職名

准教授

研究室住所

福岡県北九州市戸畑区仙水町1-1

研究分野・キーワード

EMC, 環境電磁工学

取得学位 【 表示 / 非表示

  • 岡山大学 -  博士(工学)  2009年09月

学内職務経歴 【 表示 / 非表示

  • 2018年02月
    -
    継続中

    九州工業大学   大学院工学研究院   電気電子工学研究系   准教授  

 

論文 【 表示 / 非表示

  • Influence of S_{{cd}21} Characteristics of Common-Mode Filter on Radiated Emission from UTP Cable

    Kikuchi K., Matsushima T., Ishibashi K., Kuwabara N., Fukumoto Y.

    2020 IEEE International Symposium on Electromagnetic Compatibility and Signal/Power Integrity, EMCSI 2020      386 - 391   2020年07月  [査読有り]

     概要を見る

    © 2020 IEEE. The common-mode filter (CMF) is a key device for suppressing emissions radiated from telecommunication cables. Recent serial interfaces deliver the necessity of considering that common-mode (CM) disturbances are converted from the differential mode (DM) telecommunication signals by a CMF. To examine this phenomenon, this study investigated the S_{\text{cd}21} characteristic, which is one of the mixed-mode S-parameters. Two types of CMFs whose S_{\text{cd}21} were different were examined. A signal was supplied to an unshielded twisted pair (UTP) cable through the CMF. The emission from the cable was measured using a setup complying with CISPR 25. Then, the relationship between the ratio of CM to DM signals and the emission level was investigated. The results showed that the emission level decreased as a result of employing the lower S_{\text{cd}21} CMF and that the emission level was linearly proportional to the ratio of the CM to DM signals. The results indicate that {S}_{\text{cd}21} is an essential parameter with which to evaluate CMFs used in telecommunication ports of serial interfaces.

    DOI Scopus

  • Measurement of Differential Mode Impedance and Longitudinal Conversion Loss for In-Factory High-Speed PLC System using Three-Phase Power Distribution System

    Wakisaka T., Matsushima T., Okumura H., Koga H., Kuwabara N., Fukumoto Y.

    2020 IEEE International Symposium on Power Line Communications and its Applications, ISPLC 2020      2020年05月  [査読有り]

     概要を見る

    © 2020 IEEE. The differential mode impedance (DMZ) and the longitudinal conversion loss (LCL) are important parameters to introduce high-speed power line communication (PLC) systems. Therefore, we should evaluate the DMZ and LCL in a factory environment because the three-phase power distribution system has been employed in factories. The admittance matrix elements at the power distribution board were determined from S-parameter measured with a vector network analyzer. An isolation probe was developed to measure S-parameters under high voltage applying conditions. Measurements were carried out at 60 points in 4 factories. The admittance matrix was represented by the equivalent circuit composed by six impedances, then the DMZ and the LCL were calculated from the mean value of the impedances. The results showed that the absolute value of DMZ was lower than the characteristic impedance of the PLC transmission line, and the LCL value was similar to the LCL in house environment where a two-phase power distribution system was employed.

    DOI Scopus

  • 実規模配電系統での事故点標定のための電柱径間長に対応できる分解能を持つTDR測定

    大恵 慎平, 上嶋 宏明, 笹岡 毅志, 松嶋 徹, 久門 尚史, 和田 修己

    電気学会論文誌B(電力・エネルギー部門誌)  ( 一般社団法人 電気学会 )  140 ( 9 ) 662 - 667   2020年01月  [査読有り]

     概要を見る

    <p>The authors propose a new and more efficient method to search for fault points by injected short pulse with high frequency into distribution line. This method, which is called as TDR measurement, enables to find the fault point easily by measuring propagation time of the pulse reflected due to impedance change at the fault point. In this paper, the proposed method is experimented in real-scale distribution system with about 700m distance which is isolated by DAS (Distribution Automation System) as outage area. The measurement result shows that an injected pulse with corresponding to utility pole span resolution is able to propagate through about 700m distance, and each reflected wave by several brunches and terminals is observed clearly in the real-scale distribution system. And the measurement result corresponds with the simulation result of the test equivalent circuit model. Moreover, the authors measured reflected waves from a fault point (short circuit, broken wire, or grounding) in test circuit. As the results, reflected waves from every fault point were confirmed by simulation, and they depend on the fault type. We calculated the fault location from the pulse velocity and the propagation time of the reflected wave, and the result nearly corresponded to the actual setting. In addition, the measured wave corresponds to the simulation result using equivalent circuit model of each fault point.</p>

    DOI CiNii

  • Method of implementing radiation resistance to analysis model for radiated emission using chain parameter matrix

    Kuwabara Nobuo, Matsushima Tohlu, Fukumoto Yuki

    IEICE Communications Express  ( 一般社団法人 電子情報通信学会 )    2020年01月  [査読有り]

     概要を見る

    <p>The analysis method using the chain parameter matrix (F-matrix) has been proposed for calculating radiated emission from the cable used by power line communication (PLC). In this paper, the radiation resistance was implemented to the F-matrix as the load of the common mode current which was converted from the differential mode PLC signal by the unbalance of the transmission system and was considered as the emission source. The calculated result for the simple cable model was compared to the measurement value and to the calculation value of which the radiation resistance was not considered. The investigation result indicated that the influence of radiation resistance appeared at the frequency where the high radiated emission was observed.</p>

    DOI CiNii

  • Experimental investigation of communication quality degradation of 1000BASE-T1 by pulse disturbance

    Yano Yusuke, Matsushima Tohlu, Wada Osami

    IEICE Communications Express  ( 一般社団法人 電子情報通信学会 )    2020年01月  [査読有り]

     概要を見る

    <p>Adverse effect of pulse disturbances on the communication quality is investigated experimentally on in-vehicle Ethernet (1000BASE-T1, IEEE 802.3bp). Common- and differential-mode pulse disturbances were injected into communication cables by a method referring to the coupling network described in IEC 62228-5. As a result, it was revealed that steep change of differential signal due to pulse disturbance degrades the communication quality at a specific pulse width.</p>

    DOI CiNii

全件表示 >>

学術関係受賞 【 表示 / 非表示

  • エレクトロニクス実装学会論文賞

    2019年05月23日   一般社団法人 エレクトロニクス実装学会   グラウンド端に近接した差動伝送路を対象とした平衡度不整合モデルに基づくコモンモード電流低減量予測法の検証   日本国

    受賞者:  松嶋徹, 和田修己, 渡辺哲史, 豊田啓孝, 古賀隆治

 

担当授業科目 【 表示 / 非表示

  • 2019年度  環境電磁工学特論

  • 2019年度  電磁気学Ⅳ

  • 2019年度  電気電子工学実験Ⅰ

  • 2019年度  電磁気学Ⅰ

  • 2019年度  電磁気学Ⅰ

全件表示 >>

教育活動に関する受賞・指導学生の受賞など 【 表示 / 非表示

  • 日本電磁環境測定協会賞受賞

    2019年12月   電子情報通信学会環境電磁工学専門委員会