電気学会論文誌Ｄ（産業応用部門誌）
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
検索
詳細検索
OR
閲覧
検索
134 巻, 7 号
選択された号の論文の20件中1～20を表示しています
すべての抄録を表示する
    • |<
    • <
    • 1
    • >
    • >|
論文
  • 極低オン電圧半導体素子を用いたインバータ励磁下における電磁鋼板の鉄損特性に関する一考察
    小田原 峻也, 萱森 大輔, 藤﨑 敬介
    2014 年 134 巻 7 号 p. 649-655
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.649
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    In this study, it is demonstrated that the iron loss from the SiC-MOSFET, which is a new power semiconductor with an extremely low on-voltage for electric machine drives is almost the same as that from Si-IGBT, which is a conventional power semiconductor. In order to evaluate the iron loss characteristics when a SiC device is used, two single-phase PWM inverters are built and used for the excitation of a ring made of electrical steel sheets. One of the inverter employs a SiC-MOSFET, and the other inverter employs a Si-IGBT. Then, the iron losses for the two inverters are compared.
    抄録全体を表示
    PDF形式でダウンロード (2538K)
  • スイッチトリラクタンスモータのモータ効率を向上させる設計法
    中沢 吉博, 大山 和宏, 能塚 和磨, 藤井 裕昭, 上原 一士, 百武 康
    2014 年 134 巻 7 号 p. 656-666
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.656
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    The motor efficiencies of switched reluctance motors (SRMs) are inferior to those of permanent-magnet synchronous motors. This paper describes the design procedure of an SRM to obtain high motor efficiency. The first step in the design procedure makes the principle of improving the motor efficiency clear. The cross-sectional and axial shapes of the rotor and stator cores are designed by using a magnetic field analysis with 2D and 3D finite element methods. A high-efficiency SRM with 12 stator poles and eight rotor poles is designed. The designed SRM is produced experimentally, and it is tested to certify its performance. Its motor efficiency is improved in comparison to the standard SRM having six stator poles and four rotor poles.
    抄録全体を表示
    PDF形式でダウンロード (9122K)
  • 目標軌道のオンライン補正に基づく精密位置決め制御
    奥山 淳
    2014 年 134 巻 7 号 p. 667-674
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.667
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    A control method for improving the tracking performance with respect to the reference trajectory has been developed. The proposed control system has an inner/outer control structure. The inner control system is the existing control system based on the conventional PID controller, which is designed in advance, independent of the outer control system. In order to improve the tracking performance, the outer control system is designed based on optimal preview control theory and is added to the outside of the inner control system. The polynomial trajectory is used as the reference trajectory and is fed to the outer control system. The reference trajectory is modified on-line to minimize the tracking error. The modified reference trajectory is derived as a control input signal of the outer control system and is fed to the inner control system. The effectiveness of the proposed control method is confirmed by numerical simulations of the benchmark problem for hard disk drives (HDDs).
    抄録全体を表示
    PDF形式でダウンロード (4181K)
  • 電化道路をタイヤ集電で走行する電気自動車の1/32スケールモデル試作実験
    鈴木 良輝, 水谷 豊, 杉浦 貴光, 坂井 尚貴, 大平 孝
    2014 年 134 巻 7 号 p. 675-682
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.675
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    Electric vehicles (EVs) are expected to play a leading role in the changeover from fossil fuels to clean energy. However, EVs are currently not very popular. This is because of their short cruising distance and long charging time. Wireless power transfer from infrastructure to running EVs is expected to be the solution to these problems. Electric Vehicle on Electrified Roadway (EVER) has been proposed as a wireless power transfer system to EVs in motion. Via-wheel power transfer (V-WPT) is expected to be a wireless power transfer scheme for EVER. We designed and prototyped a 1/32 scaled model of a V-WPT system that comprises an RF inverter, an electrified roadway, a rectifier, and DC-motor EV. The output power of the prototype RF inverter is 5.9W, and the DC-RF conversion efficiency is 36.6%. LC matching circuits for the V-WPT are designed with two-port conjugate matching because the S11 of the V-WPT was intrinsically -0.06dB. After matching, the S11 value is reduced to -21.5dB. The power transmission efficiency of the V-WPT system is 75%. The RF-DC conversion efficiency of the rectifier is 62%. The total efficiency of EVER system is 24.2%.
    抄録全体を表示
    PDF形式でダウンロード (3327K)
  • 回転と直動の複合ダイレクトドライブを可能にするθZモータ
    牧野 省吾, 鹿山 透, 室北 幾磨, 矢原 春樹, 大戸 基道
    2014 年 134 巻 7 号 p. 683-690
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.683
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    A multi-dimensional positioning mechanism, along with high speed and high accuracy, is necessary for an industrial machine. The positioning machine operates precisely in both vertical linear motion (z-axis) and rotary motion (θ-axis). A ball screw mechanism is used for the z-axis whereas a servo motor is used for the θ-axis.  We developed a direct drive θ-z motor for rotary and linear motion. Torque and thrust are generated directly by the mover; thus high speed, high accuracy, and miniaturization are achieved without using machine elements such as ball screw and belt.  In this paper, we described the structure and operating principle of the θ-z motor, and the sensor which can detect the θ-axis angle and the z-axis position. In addition, we consider the design method for the minimization of copper loss by the shape of permanent magnet and coil. Furthermore, we inspected the characteristics of torque, thrust, and repeatability by using the prototype.
    抄録全体を表示
    PDF形式でダウンロード (3041K)
  • 電流指令急変と高速回転の両者に起因する電圧飽和に対応したPMサーボモータの電流指令補正方法
    江頭 洋一, 原川 雅哉, 尾崎 隆之, 竹居 寛人, 葉石 敦生, 長野 鉄明, 小山 正人
    2014 年 134 巻 7 号 p. 691-698
    発行日: 2014年
    公開日: 2014/07/01
    DOIhttps://doi.org/10.1541/ieejias.134.691
    ジャーナル フリー
    抄録を表示する抄録を非表示にする
    This paper proposes a new anti-windup method for PM (permanent magnet) servo motor control that compensates for the current commands based on both the amount of transient voltage saturation at high acceleration calculated from the proportional current control model and the amount of voltage saturation of the PI current controller at high speed. Experimental results show that our proposed method can suppress the wind-up phenomenon and maintain stability under voltage saturation caused by high speed, high response, high acceleration, and severe voltage sag. Thus, the proposed method can improve the productivity of industrial machines, and is especially effective for PM servo motor control that has a large inductance, such as DDM (direct drive motor) and the IPM (interior permanent magnet) motor.
    抄録全体を表示
    PDF形式でダウンロード (2823K)
研究開発レター
 
ニュースレター
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top