Search Results - "Tsunata, Ren"

Variable Flux Memory Motor Employing Double-Layer Delta-Type PM Arrangement and Large Flux Barrier for Traction Applications by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Orikawa, Koji

“…This article consists of two important topics regarding variable flux memory motors (VFMMs). The first topic is magnetization characteristic analysis of VFMMs…”
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SMC Development Guidelines for Axial Flux PM Machines Employing Coreless Rotor Structure for Enhancing Efficiency Based on Experimental Results by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Saito, Tatsuya, Ueno, Tomoyuki

“…In recent years, there has been growing demand for flat electrical machines in order to minimize system size while also maintaining high efficiency. In…”
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Designing and Prototyping an Axial-Flux Machine Using Ferrite PM and Round Wire for Traction Applications: Comparison With a Radial-Flux Machine Using Nd-Fe-B PM and Rectangular Wire by Tsunata, Ren, Izumiya, Kosuke, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This paper proposes a novel axial-flux permanent magnet machine (AFPM) employing ferrite permanent magnets (PMs) and round copper wire. The proposed AFPM…”
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Comparison of Thermal Characteristics in Various Aspect Ratios for Radial-Flux and Axial-Flux Permanent Magnet Machines by Tsunata, Ren, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This paper proposes an axial-flux permanent magnet machine (AFPM) that uses a neodymium-bonded permanent magnet (Nd-bonded PM) and a coreless rotor structure…”
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Development and Evaluation of an Axial Gap Motor Using Neodymium Bonded Magnet by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Watanabe, Asako, Ueno, Tomoyuki, Yamada, Koji

“…In general, radial gap motors employing neodymium sintered permanent magnet (Nd sintered PM) are used to achieve high torque density in many applications…”
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Novel Rotor Structure Employing Large Flux Barrier and Disproportional Airgap for Enhancing Efficiency of IPMSM Adopting Concentrated Winding Structure by Tao, Xianji, Takemoto, Masatsugu, Tsunata, Ren, Ogasawara, Satoshi

“…Interior permanent magnetic synchronous motors (IPMSMs) adopting concentrated windings have been widely used in industrial applications. To reduce operating…”
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Design and Analysis of Hybrid-Excitation Variable Flux Memory Motor for Traction Applications: Improving Output Power in High-Speed Area During Six-Step Operation Mode by Tsunata, Ren, Yokomichi, Keito, Takemoto, Masatsugu, Imai, Jun

“…Variable flux motors with adjustable magnetic flux have been gaining attention because of their capability to simultaneously achieve a high torque density and…”
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Reduction in Eddy Current Loss of Special Rectangular Windings in High-Torque IPMSM Used for Wind Generator by Tao, Xianji, Takemoto, Masatsugu, Tsunata, Ren, Ogasawara, Satoshi

“…A special rectangular winding structure, which has different cross-sectional shape but the same cross-sectional area for each turn, has been adopted in a…”
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A Proposal of an Axial-Flux Permanent-Magnet Machine Employing SMC Core With Tooth-Tips Constructed by One-Pressing Process: Improving Torque and Manufacturability by Tsunata, Ren, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This study aims to improve the torque performance and manufacturability of axial-flux permanent magnet (AFPM) machines. Hence, we propose a novel AFPM machine…”
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Teaching Method for Electrical Machines Focusing on Differences Between Simulation and Experimental Verification by Tsunata, Ren, Takemoto, Masatsugu

“…In modern times, electrical machines are used in a wide range of fields such as home appliances and automobile industries, so it is important for the…”
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Proposal of a Novel Air-Gap Structure for Magnet-Less 3-Axis Active Control-Type Magnetic Bearing with Cylindrical Rotor: Reducing Axial Length of Turbomachinery System by Sho, Yuto, Takemoto, Masatsugu, Tsunata, Ren, Imai, Jun

“…This paper proposes a novel airgap structure for magnetic bearing (MB) that realizes 70% smaller lower side coil space area than that of a conventional MB for…”
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The Superiority of Efficiency Considering Harmonic Current caused by PWM inverter in Axial-Flux PM Machine Using Ferrite PM for Traction applications: Comparison to Radial-Flux PM Machines Using NdFeB PM by Tsunata, Ren, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This paper evaluates the harmonic current caused by PWM inverter how it affects efficiency of our proposed novel axial flux permanent magnet machine using…”
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Skewing Technology for Permanent Magnet Synchronous Motors: A Comprehensive Review and Recent Trends by Tsunata, Ren, Takemoto, Masatsugu

“…This paper gives a comprehensive overview of the current research trends in the skewing technique for permanent magnet synchronous motors (PMSMs). The skewing…”
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Investigation of Enhancing Reluctance Torque of a Delta-Type Variable Flux Memory Motor Having Large Flux Barrier for EV/HEV Traction by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Orikawa, Koji

“…Delta-type permanent magnet (PM) arrangement and extended flux barriers are very effective in improving magnetization characteristics of variable flux memory…”
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Superior Efficiency Under PWM Harmonic Current in an Axial-Flux PM Machine for HEV/EV Traction: Comparison With a Radial-Flux PM Machine by Tsunata, Ren, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This paper evaluates the harmonic current caused by a pulse width modulation (PWM) inverter and how it affects the efficiency of a novel axial-flux…”
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Comparison of Thermal Characteristics in Various Aspect Ratios of Radial-Flux and Axial-Flux Permanent Magnet Machines by Tsunata, Ren, Takemoto, Masatsugu, Imai, Jun, Saito, Tatsuya, Ueno, Tomoyuki

“…This paper provides comprehensive comparison including thermal and electromagnetic properties between axial-flux permanent magnet machines (AFPMs) and…”
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Investigation of Dy-Free Hybrid PM Motor Based on Spoke-Type Rotor for Automotive Applications by Park, Jiseong, Tsunata, Ren, Takemoto, Masatsugu, Orikawa, Koji, Ogasawara, Satoshi

“…NdFeB permanent magnets (Nd-PM) can achieve a coercivity of up to 21 kOe without dysprosium due to the development of manufacturing technology. However, due to…”
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Development Policy of SMC to Improve Efficiency of Axial Gap Motor Employing Coreless Rotor Structure by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Saito, Tatsuya, Ueno, Tomoyuki

“…In recent years, electric motors having flat shape are desired in order to minimize system size as well as enhancing the efficiency. Therefore, axial gap…”
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A Proposal of Ultra-Flat Axial Gap Motor Employing C-type SMC Core by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Ueno, Tomoyuki, Saitoh, Tatsuya

“…In recent years, permanent magnet synchronous motors (PMSMs) are used for many applications because of their high output density and high efficiency. On the…”
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Investigation of enhancing efficiency and acceleration in a flat shape axial gap motor having high torque characteristic by Tsunata, Ren, Takemoto, Masatsugu, Ogasawara, Satoshi, Watanabe, Asako, Ueno, Tomoyuki, Yamada, Koji

“…In recent years, flat shape motors are desired for many industrial applications such as robot arm, automobiles and so on. Thus, this paper discusses axial gap…”
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