Design and Application of Electrical Machines

Pałka, Ryszard; Wardach, Marcin

doi:10.3390/en15020523

Cited by 6 publications

(3 citation statements)

References 22 publications

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“…Typically, stator slots are straight while rotor slots are slightly inclined. This configuration serves to reduce harmonic components within the air gap, thereby reducing vibrational effects [8,[21][22][23]. The analysis and calculation of the tilt effect can be done using the winding factor.…”

Section: Tilting Leakage Inductancementioning

confidence: 99%

Increased Efficiency by Changing the Slot Topology of a Light Electric Vehicle Three-Phase Induction Motor.

Roberto,

Caetano

2023

Preprint

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Electric vehicles have become more widely used in the market given their numerous benefits. Electric motors should be optimized for optimal development and application. High-performance slot topologies, including rounded, rectangular, or mixed configurations, have already become established in the market, showing excellent results in terms of final induction motor performance. Consequently, new slot topologies, be they for the stator or for the rotor, can offer several advantages. These new topologies may facilitate greater magnetic flux or reduce magnetic flux dispersions. These enhancements result in increased efficiency for electric vehicle induction motor applications. This study examines the performance of a three-phase induction motor intended for use in a light electric vehicle propulsion system. The focus is on altering the stator slot plate topology to gauge its impact. The analyses compared the magnetic flux dispersion for three different slot topologies. The original stator slot design featured a flared shape, which was compared with a rectangular slot design. The COMSOL software program allowed us to visually represent the generated magnetic field lines within the induction motor. This included the magnetic flux dispersion lines, categorized as either gap dispersion, slot dispersion, coil head dispersion, slot tooth dispersion, and slope dispersion. With the MATLAB software program, we performed a quantitative analysis of the magnetic flux dispersion for the three stator slot topologies. The induction motor equipped with the rectangular slot showed a 0.13 \% efficiency gain compared to the motor with the original slot design.

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Section: Tilting Leakage Inductancementioning

confidence: 99%

Increased Efficiency by Changing the Slot Topology of a Light Electric Vehicle Three-Phase Induction Motor.

Roberto,

Caetano

2023

Preprint

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“…The production technology of electrical machine windings always seeks for easily produced solutions with higher performance and lower cost. The manufacturing of machine windings basically depends on three main factors which are the electrical conductors, thermal and mechanical properties [4]. The selection of the electrical conductor usually is based on the electrical properties of the material such as the electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Electrical Machines Winding Technology: Latest Advancements for Transportation Electrification

2022

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The ever-increasing demand for higher-power dense electrical machines has resulted in different electrical, mechanical, and thermal stresses, which can eventually cause machine failure. For this reason, the management of stresses and losses must be thoughtfully investigated to have a highly reliable electrical machine. The literature agrees that winding losses are the dominant loss mechanism in many electrical machines. However, statements vary on how to mitigate these losses along with the aforementioned stresses. To avoid winding failure, a study of the various winding topologies would allow for a better consideration of the challenges and limitations in the performance of different electrical machines. To this aim, this paper introduces a comprehensive review for different winding topologies. Many reported cases in the literature are summarized and compared. Moreover, the utilization of additive manufacturing (AM) in the production of the machine windings is presented, showing a high level of maturity of this emerging technology. Finally, different challenges facing the design of machine windings are introduced including the AC high frequency losses, thermal management, mechanical and acoustic problems, insulation aging, automated production, and winding manufacturability.

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“…The design of electric motors by incorporating both lightweight and cooling systems facilitates the development of efficient electric motors. These design and optimization methods have already been used by the authors in the construction of various machines with permanent magnets, including hybrid excited machines [13][14][15]. These papers indicated the use of soft magnetic materials [16][17][18] to optimize the magnetic cores of machines in order to obtain the optimal distribution of the magnetic field, as well as to reduce the mass of the machines.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Electric Motors Using Lightweight Materials

et al. 2022

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Electric motors are utilitarian devices of great potential as they can limit the amount of pollution by drastically reducing the release of harmful gases. The implementation of the right type of advanced materials plays a vital role in the amelioration of modern automobiles while maintaining and/or improving the performance and efficiency of the electric motor. The use of lightweight materials could result in a better-performing vehicle that can be much less heavy. The replacement of regular cast iron, steel, and aluminum with lightweight materials such as fiber-reinforced polymer, carbon fiber, and polymer composites can reduce the weight of the motor without impacting its performance and improve its energy-saving capacity. This paper explores a way to reduce motor weight by employing a PA6GF30 30% glass fiber-reinforced polymer casing to reduce the weight of the motor while making cooling system modifications. This material was applied to the motor casing, which resulted in a significant reduction in weight compared to the water-cooled electric motor of aluminum (Alloy 195 cast) casing.

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Design and Application of Electrical Machines

Cited by 6 publications

References 22 publications

Increased Efficiency by Changing the Slot Topology of a Light Electric Vehicle Three-Phase Induction Motor.

Increased Efficiency by Changing the Slot Topology of a Light Electric Vehicle Three-Phase Induction Motor.

Electrical Machines Winding Technology: Latest Advancements for Transportation Electrification

Modeling and Simulation of Electric Motors Using Lightweight Materials

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