研究者詳細 - 竹本　真紹

論文 - 竹本　真紹

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フェライト磁石を用いたレアアースフリーモータの開発

竹本真紹

電気学会誌 132 ( 8 ) 2012年

Test Results of High Torque and High Efficiency SRMs designed for 50kW Hybrid Electric Vehicle 査読

Motoki Takeno, Kyohei Kiyota, Yuta Murakami, Akira Chiba, Nobukazu Hoshi, Masatsugu Takemoto, Satoshi Ogasawara

2012 IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2012年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

This paper reports a comparison of the experimental results and analysis of the SRMs. Two Switched Reluctance Motors (SRMs) have been designed, constructed, and tested. The iron core of these machines is made of 6.5% silicon steel and conventional 3.5% silicon steel. The performance of these SRMs has been investigated in full loading tests. Efficiency of both SRMs has reached more than 90% and output power has reached more than 50 kW.

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Rotor Structure Suppressing Suspension Force Ripple in an IPM Type Bearingless Motor with 2-pole Motor Windings and 4-pole Suspension Windings 査読

Tatsuya Matsuzaki, Masatsugu Takemoto, Satoshi Ogasawara, Satoru Ota, Kazunobu Oi, Daiki Matsuhashi

2012 XXTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM) 744 - 750 2012年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

A bearingless motor has integrated characteristics of an electrical motor and a magnetic bearing. In general, surface permanent magnet (SPM) type rotor structure with a ring magnet magnetized in parallel is employed in high-speed PM type bearingless motors. However, in case of increasing motor size for high output, this rotor structure has problems of insufficient suspension force due to a wide air gap and high cost by using the large-diameter ring magnet magnetized in parallel. Therefore, this paper discusses a novel interior permanent magnet (IPM) type rotor structure for the high-speed and high-output bearingless motor. In the novel IPM type rotor structure, suspension force ripple is suppressed by means of arranging flux barriers at the suitable position in a rotor. It is confirmed with 2D-FEM that the proposed rotor structure using the flux barriers is effective in suppressing the suspension force ripple.

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Fundamental Analysis for a Ferrite Permanent Magnet Axial Gap Motor with Coreless Rotor Structure 査読

Kazuya Chiba, Shinji Chino, Masatsugu Takemoto, Satoshi Ogasawara

2012 15TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2012) 3 ( 1 ) 47 - 54 2012年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE

In general, a rare-earth permanent magnet that has large energy product is used for traction motors mounted on hybrid electric vehicles (HEVs). However, it is necessary to develop rare-earth-free motors for the HEV traction motors owing to several problems such as price hike and export restriction of rare-earth materials. In this paper, a ferrite permanent magnet axial gap motor with coreless rotor structure is introduced as the rare-earth-free motor. In addition, the motor structure and the results of 3D-FEA are described in detail.

DOI： 10.1541/ieejjia.3.47

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A Feedback-Type Dead-Time Compensation Method for High-Frequency PWM Inverter - Delay and Pulse Width Characteristics 査読

Masashi Ogawa, Satoshi Ogasawara, Masatsugu Takemoto

2012 TWENTY-SEVENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) 100 - 105 2012年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

This paper discusses a dead-time compensation method for high-frequency pulse-width modulation (PWM) inverters. Feedback-type dead-time compensation can eliminate error in the inverter output voltage. With next-generation switching devices using SiC, the switching frequency of inverters is expected to improve to 10-fold that of conventional inverters. However, as switching frequency increases, dead time will more strongly affect output voltage error. This paper proposes a new compensation method, which can reduce the minimum output pulse width and the phase delay of the inverter output voltage. An experimental system was constructed and tested, using highspeed power MOSFETs and a field-programmable gate array controller. Experimental results support the validity and usefulness of the proposed compensation method.

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Examination of an Interior Permanent Magnet Type Axial Gap Motor for the Hybrid Electric Vehicle 査読

Arakawa Tatsuro, Takemoto Masatsugu, Ogasawara Satoshi, Inoue Koji, Ozaki Osamu, Hojo Hirofumi, Mitani Hiroyuki

IEEE TRANSACTIONS ON MAGNETICS 47 ( 10 ) 3602 - 3605 2011年10月

A test result of a 50kW switched reluctance motor designed for a Hybrid Electric Vehicle 査読

Motoki Takeno, Yuichi Takano, Akira Chiba, Nobukazu Hoshi, Masatsugu Takemoto, Satoshi Ogasawara

2011 IEEE Power and Energy Society General Meeting 2011年7月

HEV用50kW SRMのヨーク部の磁気飽和を考慮したトルク性能の向上査読

竹野元貴, 千葉明, 星伸一, 小笠原悟司, 竹本真紹

日本AEM学会誌 19 ( 2 ) 372 - 377 2011年6月

5軸能動制御形ベアリングレスキャンドモータポンプの開発査読

山本直人, 竹本真紹, 小笠原悟司, 平櫛真男

日本AEM学会誌 19 ( 2 ) 146 - 152 2011年6月

ハイブリッド自動車用フェライト磁石アキシャルギャップモータのスロット数に関する検討査読

茅野真治, 三浦昂彦, 竹本真紹, 小笠原悟司, 千葉明, 星伸一

日本AEM学会誌 19 ( 2 ) 121 - 127 2011年6月

次世代ハイブリッド自動車用フェライト磁石アキシャルギャップモータの構造と基礎特性査読

三浦昂彦, 茅野真治, 竹本真紹, 小笠原悟司, 千葉明, 星伸一

日本AEM学会誌 19 ( 2 ) 128 - 133 2011年6月

スイッチトリラクタンスモータの駆動方式が振動に与える影響査読

今川聖, 星伸一, 千葉明, 竹本真紹, 小笠原悟司

日本AEM学会誌 19 ( 2 ) 90 - 96 2011年6月

Torque Density and Efficiency Improvements of a Switched Reluctance Motor Without Rare-Earth Material for Hybrid Vehicles 査読

Akira Chiba, Yuichi Takano, Motoki Takeno, Takashi Imakawa, Nobukazu Hoshi, Masatsugu Takemoto, Satoshi Ogasawara

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS 47 ( 3 ) 1240 - 1246 2011年5月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an interior permanent-magnet (IPM) synchronous motor (IPMSM) in a hybrid electric vehicle (Toyota Prius 2003) has been investigated. A torque of 400 N . m is set as a target with an outer diameter of 269 mm with an axial length of 156 mm, including coil end lengths. In addition, a 50-kW field weakening capability must be competitive to the IPMSM. The highest efficiency of 95% is also aimed. Stator and rotor structures and iron material are investigated. Test machines are built. Static and light load tests are carried out.

DOI： 10.1109/TIA.2011.2125770

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Equivalency of series-parallel hybrid system using planetary gear and hybrid system using EVT 査読

Yuki Kubo, Satoshi Ogasawara, Masatsugu Takemoto

8th International Conference on Power Electronics - ECCE Asia 2011年5月

Experimental estimation of a 5-axis active control type bearingless canned motor pump 査読

Naoto Yamamoto, Masatsugu Takemoto, Satoshi Ogasawara, Masao Hiragushi

2011 IEEE International Electric Machines & Drives Conference (IEMDC) 2011年5月

レアアースを使わない新構造永久磁石モータの最新動向

竹本真紹

電気学会誌 131 ( 11 ) 2011年

技術開発レポート:フェライト磁石を用いたHEV用ロータセグメント形アキシャルギャップモータの開発

竹本真紹

電気学会論文誌 D 131 ( 4 ) 2011年

Novel Switched Reluctance Motor Drive Circuit with Voltage Boost Function without Additional Reactor 査読

Yujiro Kido, Nobukazu Hoshi, Akira Chiba, Satoshi Ogasawara, Masatsugu Takemoto

PROCEEDINGS OF THE 2011-14TH EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE 2011) 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

Switched reluctance motor (SRM) is attractive for the driving motor of electric vehicles (EVs) and hybrid electric vehicles (HEVs) from the view point which does not use rare-earth materials. However, special drive circuit, which is different from general three-phase inverter used for permanent magnet synchronous motor and induction motor, is required in order to drive SRM. By the way, in some of commercial HEVs, boost chopper combined with three-phase inverter is used in order to apply high voltage to motor windings at high-speed range. In this system, the size of the additional reactor, which is required in boost chopper, is a problem. Then, this paper proposes a novel drive circuit with voltage boost function without additional reactor for SRM. In addition, control scheme and controller configuration for the proposed circuit are described. Moreover, the effectiveness of the proposed circuit is verified by simulation and experimental results.

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Fundamental Characteristics of a Ferrite Permanent Magnet Axial gap Motor with Segmented Rotor Structure for the Hybrid Electric Vehicle 査読

Shinji Chino, Takahiko Miura, Masatsugu Takemoto, Satoshi Ogasawara, Akira Chiba, Nobukazu Hoshi

2011 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) 2805 - 2811 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

In newest hybrid electric vehicle (HEV) propulsion systems, permanent magnet synchronous motors (PMSMs) using high-performance rare-earth permanent magnets play an important role. However, rare earth materials employed in the high-performance rare-earth permanent magnets have problems such as price rise and export restriction. Thus, it is necessary to develop a rare-earth-free motor for the HEVs. In this paper, a novel ferrite permanent magnet axial gap motor with segmented rotor structure is introduced. In order to obtain the fundamental characteristics of this motor, a prototype is fabricated and tested. The experiment results of the prototype are shown in detail. It can be confirmed with the experiment results of the prototype that the proposed motor with the segmented rotor structure has the possibility of the development of the rare-earth-free motor enough.

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Power and Efficiency Measurements and Design Improvement of a 50kW witched Reluctance Motor for Hybrid Electric Vehicles 査読

Motoki Takeno, Akira Chiba, Nobukazu Hoshi, Satoshi Ogasawara, Masatsugu Takemoto

2011 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) 1495 - 1501 2011年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

A switched reluctance motor is one of possible candidates of rare-earth-free-motors. A prototype machine has been designed, having competitive dimensions, torque, power, and efficiency with respect to the IPMSM employed in the HEVs (Toyota Prius 2003). In this paper, test results are presented including a full load test. It is found that competitive power and efficiency of 50kW and 95%, respectively, are achieved, although 85% of the target torque is possible. Despite of the maximum torque, the most speed-torque region is found to be covered by the test SRM. The cause of discrepancy in the measured and calculated torque values is examined. Considering the discrepancy a new machine is designed for the second stage development.

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