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Warat Sriwannarat, Pattasad Seangwong, Vannakone Lounthavong, Sirote Khunkitti, Apirat Siritaratiwat and Pirat Khunkitti
The doubly salient permanent magnet (DSPM) machines are very attractive for low-speed power generation. In this work, we propose a design technique to improve the output power of the DSPM generator by an adjustment of pole configuration. The number of st...
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Xiang Shen, Xu Deng, Barrie Mecrow, Rafal Wrobel and Richard Whalley
The work specifically targets the enhancement of cooling mechanisms in high-power permanent magnet electrical machines, with a direct application in improving the thermal management of stator windings in such devices. This advancement can significantly b...
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Alexandre Richard, Xavier Roboam, Florent Rougier, Nicolas Roux and Hubert Piquet
This paper proposes an electric powertrain architecture for future hybrid electric aircrafts which structure is only composed of permanent magnet synchronous machines for both generators (PMSG) and motors (PMSM). The direct connection through an AC bus o...
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Ibrahim M. Allafi and Shanelle N. Foster
Direct-torque-control-driven permanent magnet synchronous machines eliminate the need for a position sensor while providing improved torque dynamics. However, the structure, regulation principle and nature of compensation of hysteresis-based controllers ...
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Christian Monissen, Oliver Kusche, Michael Schröder and Jakob Andert
The power density of electric machines for future battery electric vehicles must be further increased to improve customer benefits. To this end, this paper compares two state-of-the art electrical traction machines and evaluates the potential for increas...
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Ibrahim M. Allafi and Shanelle N. Foster
Condition monitoring and preventative maintenance are essential for reliable and efficient operation of permanent magnet synchronous machines driven by inverters. There are two types of industrial inverter drives available: field oriented control and dir...
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Wenjuan Hao, Gong Zhang, Wenbo Liu, Hui Liu and Yu Wang
Permanent magnet (PM) machines inevitably suffer from cogging force, which does not contribute to the average output torque (force) but contributes as a type of torque (force) ripple. This paper provides an overview of the cogging force reduction methods...
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Wentao Gao, Yufeng Zhang, Guanghui Du, Tao Pu and Niumei Li
For high-speed permanent magnet machines (HSPMMs), many design schemes of rotor length?diameter ratios can satisfy the constraints of multiple physical fields during the motor design period. The rotor length?diameter ratio greatly impacts the comprehensi...
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Gan Zhang, Qing Tong, Anjian Qiu, Xiaohan Xu, Wei Hua and Zhihong Chen
Parameter sensitivity analysis is usually required to select the key parameters with high sensitivity to the optimal goal before the optimization is carried out, especially for flux-switching permanent magnet (FSPM) machines where lot of design parameter...
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Pawel Prajzendanc and Piotr Paplicki
Variable speed, permanent magnet synchronous machines with hybrid excitation have attracted much attention due to their flux-control potential. In this paper, a design of permanent magnet axial flux machines with iron poles in the rotor and an additional...
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Andrea Floris, Mario Porru, Alfonso Damiano and Alessandro Serpi
This paper presents the energy management and control system design of an integrated flywheel energy storage system (FESS) for residential users. The proposed FESS is able to draw/deliver 8 kWh at 8 kW, and relies on a large-airgap surface-mounted perman...
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Guohui Yang and Chengning Zhang
This paper proposes a computationally efficient approach for mapping permanent magnet (PM) power loss in permanent magnet synchronous machines (PMSMs). The PM loss mapping method here uses time-step finite element analysis (FEA) to determine the function...
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Eulalie Fleurot, Franck Scuiller and Jean-Frédéric Charpentier
In this paper original analytical models to determine the electromagnetic performances of segmented permanent magnet synchronous machines (with removed active parts in the stator or the rotor) are presented. These models are adapted to PMSM with large ai...
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Natalia Radwan-Praglowska, Tomasz Wegiel and Dariusz Borkowski
In this paper, an application of the Harmonic Balance Method (HBM) for analysis of Axial Flux Permanent Magnet Generator (AFPMG) is carried out. Particular attention was paid to development of mathematical model equations allowing to estimate the machine...
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Steven Hayslett and Elias Strangas
A computationally efficient design of interior permanent magnet (IPM) motor rotor features is investigated utilizing analytical methods. Over the broad operating range of IPM machines, interactions of MMF sources, permeances, and currents result in torqu...
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Carlos Candelo-Zuluaga, Jordi-Roger Riba and Antoni Garcia
During the last decades, a wide variety of methods to estimate permanent magnet synchronous motor (PMSM) performance have been developed. These methodologies have several advantages over conventional procedures, saving time and economic costs. This paper...
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Ali Akay and Paul Lefley
This paper presents a novel method to control sinusoidal distributed winding or sinusoidal back electromotive force (back-EMF) multi-phase permanent magnet (PM) machines under open-circuit fault conditions. In this study, five different fault conditions ...
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Jeong-In Lee, Kyung-Hun Shin, Tae-Kyoung Bang, Kyong-Hwan Kim, Key-Yong Hong and Jang-Young Choi
In this study, analysis of core-loss occurring in the magnetic flux modulation core of a linear magnetic gear and the core of each mover is presented, using an analytical method. Losses in electric machines were generally calculated and analyzed using th...
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Carlos Candelo-Zuluaga, Jordi-Roger Riba, Dinesh V. Thangamuthu and Antoni Garcia
This paper analyzes partial demagnetization faults in a five-phase permanent magnet assisted synchronous reluctance motor (fPMa-SynRM) incorporating ferrite permanent magnets (PMs). These faults are relevant because of the application of field weakening,...
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Alessandro Acquaviva, Stefan Skoog, Emma Grunditz and Torbjörn Thiringer
Tooth coil winding machines offer a low cost manufacturing process, high efficiency and high power density, making these attractive for traction applications. Using direct oil cooling in combination with tooth coil windings is an effective way of reachin...
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