EPE Association: EPE 2013 - LS5f: Switched Reluctance Machines

EPE 2013 - LS5f: Switched Reluctance Machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 10: Electrical machines > EPE 2013 - LS5f: Switched Reluctance Machines

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   Automated Copper Loss Calculation for Switched Reluctance Machines
By Mareike HUEBNER, Rik W. DE DONCKER [View]
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Abstract: Copper loss calculation in switched reluctance machines is important to predict efficiency and to predicttemperature hotspots in the machine. Established calculation methods for alternating current (AC)copper losses are either inaccurate or time consuming. This paper presents a tool chain for copper loss calculation which enables fast and accurate model building and simulation procedure. Employment of the tool chain requires only a few minutes of attention by the design engineer, but provides high accuracy. The losses of each conductor are calculated seperately over time. This enables detailed analysis of the winding design and the identification of the cause of the losses. With this method, an improved winding design can be easily identified.

   Development of High Torque Density Axial-gap Switched Reluctance Motor for In-wheel Direct-Drive EV
By Hiroki GOTO, Toru SHIBAMOTO, Kenji NAKAMURA, Osamu ICHINOKURA [View]
[Download]

Abstract: Switched reluctance (SR) motors attract attention as a machine without rare-earth materials. And it is a candidate technology for electric vehicle application. However, torque density of SR motors is smaller than that of Permanent Magnet Synchronous Machines (PMSMs). Recently, an axial-gap structure is attention on possibility of effective utilization of in-wheel flat motor space. In the paper, a new flat volume axial-gap SR motor as high torque density for in-wheel direct-drive EV is designed. The characteristics of the proto-type machines are measured and compared with FEA results. The characteristics agree with simulation results. Finally, the proto-type machines are mounted on an 8-passenger 2,000 kg vehicle like small bus. The test drive of the in-wheel direct-drive axial gap SR motor vehicle is succeeded.

   Improvement of Efficiency of Switched Reluctance Motor by Single Pulse Control Based on Linear Torque Equation
By Yoshihiro NAKAZAWA, Kazuhiro OHYAMA, Hiroaki FUJII, Hitoshi UEHARA, Yasushi HYAKUTAKE [View]
[Download]

Abstract: The three magnetization modes in which the magnetization region is shifted according to load basedon a linear torque equation are proposed. Efficiency comparison test of the proposed method and avoltage PWM control method is conducted with a real system.

EPE 2013 - LS5f: Switched Reluctance Machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 10: Electrical machines > EPE 2013 - LS5f: Switched Reluctance Machines
	[return to parent folder]

	Automated Copper Loss Calculation for Switched Reluctance Machines By Mareike HUEBNER, Rik W. DE DONCKER	[View] [Download]
Abstract: Copper loss calculation in switched reluctance machines is important to predict efficiency and to predicttemperature hotspots in the machine. Established calculation methods for alternating current (AC)copper losses are either inaccurate or time consuming. This paper presents a tool chain for copper loss calculation which enables fast and accurate model building and simulation procedure. Employment of the tool chain requires only a few minutes of attention by the design engineer, but provides high accuracy. The losses of each conductor are calculated seperately over time. This enables detailed analysis of the winding design and the identification of the cause of the losses. With this method, an improved winding design can be easily identified.

	Development of High Torque Density Axial-gap Switched Reluctance Motor for In-wheel Direct-Drive EV By Hiroki GOTO, Toru SHIBAMOTO, Kenji NAKAMURA, Osamu ICHINOKURA	[View] [Download]
Abstract: Switched reluctance (SR) motors attract attention as a machine without rare-earth materials. And it is a candidate technology for electric vehicle application. However, torque density of SR motors is smaller than that of Permanent Magnet Synchronous Machines (PMSMs). Recently, an axial-gap structure is attention on possibility of effective utilization of in-wheel flat motor space. In the paper, a new flat volume axial-gap SR motor as high torque density for in-wheel direct-drive EV is designed. The characteristics of the proto-type machines are measured and compared with FEA results. The characteristics agree with simulation results. Finally, the proto-type machines are mounted on an 8-passenger 2,000 kg vehicle like small bus. The test drive of the in-wheel direct-drive axial gap SR motor vehicle is succeeded.

	Improvement of Efficiency of Switched Reluctance Motor by Single Pulse Control Based on Linear Torque Equation By Yoshihiro NAKAZAWA, Kazuhiro OHYAMA, Hiroaki FUJII, Hitoshi UEHARA, Yasushi HYAKUTAKE	[View] [Download]
Abstract: The three magnetization modes in which the magnetization region is shifted according to load basedon a linear torque equation are proposed. Efficiency comparison test of the proposed method and avoltage PWM control method is conducted with a real system.