Results 31 to 40 of about 1,718,853 (194)
Development of low translator mass linear Vernier machine for wave energy power take off
The Journal of Engineering, 2019 This article proposes a new topology of double-sided linear Vernier permanent magnet (LVPM) machine with segmented translator structure. A combination of a typical Halbach array consists of two horizontally magnetised permanent magnets (PMs) sandwiched ...
Mohammad A.H. Raihan +3 more
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Characterization of bulk piezoelectric element-based ultrasonic motors
ROBOMECH Journal, 2020 We propose miniature ultrasonic motors using stators made of a single bulk piezoelectric element. The bulk piezoelectric stator has the potential to increase output by reducing the dissipation that occurs in the adhesion layer between the PZTs and a ...
Shunsuke Izuhara, Tomoaki Mashimo
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The Journal of Engineering, 2019 Here, static and dynamic (rotating) misalignments between the low-speed rotor (LSR) and the stator of axial flux magnetically geared machines are studied with the aid of 3-D finite element analysis (FEA).
Mohammed F. Hamad Khatab +3 more
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Novel partitioned stator hybrid excited machines with magnets on slot openings
The Journal of Engineering, 2019 In this study, a novel partitioned stator hybrid excited machine is proposed, in which the excitation sources including both permanent magnets (PMs) and field windings are allocated on the secondary stator that is separated from the original stator ...
Hao Hua, Z.Q. Zhu
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Machine Learning-Based Stator Current Data-Driven PMSM Stator Winding Fault Diagnosis
Sensors, 2022 Permanent magnet synchronous motors (PMSMs) have become one of the most important components of modern drive systems. Therefore, fault diagnosis and condition monitoring of these machines have been the subject of many studies in recent years. This article presents an intelligent stator current-data driven PMSM stator winding fault detection and ...
Przemyslaw Pietrzak, Marcin Wolkiewicz
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Mass reduction of superconducting power generators for large wind turbines
The Journal of Engineering, 2019 High temperature superconductors (HTS) enable very compact electric machines with high power density. Here, an HTS power generator based on authors’ previous double claw pole design is studied and improved.
Kevin Kails +3 more
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The Journal of Engineering, 2019 This study proposes a fault-tolerant matrix-converter-controlled IPMSM-drive system, in which a predictive speed-loop controller and a predictive current-loop controller are implemented to improve its dynamic responses, including transient responses and ...
Tian-Hua Liu, Shuo-Feng Chang
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Sliding observer-based demagnetisation fault-tolerant control in permanent magnet synchronous motors
The Journal of Engineering, 2017 This study proposes a fault-tolerant control method for permanent magnet synchronous motors (PMSMs) based on the active flux linkage concept, which addresses permanent magnet (PM) demagnetisation faults in PMSMs. First, a mathematical model for a PMSM is
Changfan Zhang +3 more
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Study of the assembly, build and test of a linear transverse flux machine
The Journal of Engineering, 2019 This study discusses the topology development of a cylindrical transverse flux linear machine for use with a free piston engine. Despite its three-dimensional flux path, the stator of this topology can be made from regular laminated components and only ...
Junnan Wang +3 more
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The Journal of Engineering, 2020 This study analyses a double Y shaft 30° winding for six-phase fault-tolerant permanent magnet synchronous motors and introduces a novel modular 18-slot stator topology used in high-performance electric vehicles with unequal teeth width and unequal slot ...
Zhong An Yu +3 more
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