Torque Performance Comparison Between Slotted and Non-Slotted Axial Flux PCB Winding Machine

2021 ◽  
Author(s):  
Yigit Karabulut ◽  
Erkan Mese
Keyword(s):  
Performance Comparison ◽  
Axial Flux ◽  
Winding Machine

Electromagnetic Performance Comparison of Axial Flux Machine with different PM Shapes for Electric Vehicles

2021 ◽  
Author(s):  
Ziaul Islam ◽  
Faisal Khan ◽  
Basharat Ullah ◽  
Muhammad Yousuf ◽  
Shahid Hussain ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Performance Comparison ◽  
Axial Flux ◽  
Electromagnetic Performance

Performance Comparison of AFDS PMSG during Voltage Regulation by mechanical field-weakening in Extended-Speed-Range

2019 ◽  
Vol 13 ◽  
Author(s):  
Shailendra Kumar Gupta ◽  
Rakesh Kumar Srivastava
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Voltage Regulation ◽  
Performance Comparison ◽  
High Coercivity ◽  
Axial Flux ◽  
Field Weakening ◽  
Mechanical Field ◽  
Mechanical Methods ◽  
Speed Range

: Axial-flux permanent magnet generators have been found suitable in wind energy conversion system and electrical vehicle owing to its compactness, high torque to inertia ratio, modular geometry, and high magnet usability index. Such applications require the generator to operate in extended speed range. In extended speed range, voltage regulation of the generator is achieved by field-weakening of the generator. Usually, field-weakening is achieved by injecting negative d-axis current in the armature winding of the generator. However, in the axial-flux machine field-weakening by current injection is not substantial due to the low inductance of the machine and use of permanent magnets with high coercivity. Therefore, this paper emphasizes field-weakening using mechanical methods. This paper compares the performance of different axial-flux dual-stator permanent magnet generator (AFDS PMG) topologies on the basis of voltage regulation by mechanical-field-weakening-technique. Field-weakening in the generator is achieved by angularly displacing one of the stators with respect to other via a mechanical actuator. Experimental test results on proof-of-concept generators have been presented to conclude that AFDS PMSG with perfect sinusoidal back-emf characteristic is best suited for mechanical field-weakening-based voltage regulation in ESR.

scholarly journals Design of Slotted and Slotless AFPM Synchronous Generators and their Performance Comparison Analysis by using FEA Method

2015 ◽  
Vol 5 (4) ◽  
pp. 810
Author(s):  
Saint Saint Soe ◽  
Yan Aung Oo
Keyword(s):  
Finite Element ◽  
Permanent Magnet ◽  
Synchronous Generator ◽  
Performance Comparison ◽  
Low Noise ◽  
Machine Design ◽  
Magnetic Flux Density ◽  
Permanent Magnet Machines ◽  
Axial Flux ◽  
Element Analysis

Axial-flux permanent magnet machines are popular and widely used for many applications due to their attractive features such as light weight, low noise, high torque, robust and higher efficiency due to lack of field excitation. The main essence of this paper is to perform slotted and slotless axial-flux permanent magnet synchronous generator design based on theoretical sizing equations and then finite element analysis is reinforcement in order to get a more reliable and accuracy machine design. A comparative study of machine design and performances over the same rating but different configurations i.e., slotted and slotless are also discussed. And then, finite-element method (FEM) software was made for the slotted stator and slotless stator (AFPMSG) in order to compare their magnetic flux density and efficiency. The AFPMSG topology considered in this paper is a three-phase double-rotor single-stator topology with 16 pole-pairs, 2kW rated power and 188 rpm rated speed.

Comparison of 8/6 radial and axial flux switched reluctance machines

2019 ◽  
Vol 38 (6) ◽  
pp. 1756-1769
Author(s):  
Racha Aydoun ◽  
Guillaume Parent ◽  
Mounaim Tounzi ◽  
Jean-Philippe Lecointe ◽  
Krzysztof Komeza
Keyword(s):  
Numerical Models ◽  
Performance Comparison ◽  
Electromagnetic Torque ◽  
Switched Reluctance Machine ◽  
Axial Flux ◽  
Content Type ◽  
Switched Reluctance ◽  
Active Surfaces ◽  
Reluctance Machine ◽  
The Impact

Purpose This paper aims to deal with a performance comparison of an 8/6 radial-flux switched reluctance machine (RFSRM) and an axial-flux switched reluctance machine (AFSRM), presenting equivalent active surfaces. Design/methodology/approach An axial machine was designed based on the equivalent active surfaces of a radial one. After estimating the machine inductances with a reluctance network, finite elements numerical models have been implemented for a more precise inductance determination and to estimate the electromagnetic torque for both machines. Finally, the AFSRM was thoroughly examined by analyzing the impact of some geometric parameters on its performance. Findings The comparison of the RFSRM and AFSRM at equivalent active surfaces showed that the obtained axial machine is more compact along with an improvement in the electromagnetic torque. Practical implications The equivalent AFSRM is more compact, therefore more interesting for transport and on-board applications. Originality/value The RFSRM and AFSRM performance comparison using the same active surfaces has not been done. Moreover, the AFSRM presented has a rare design with no rotor yoke and where the rotor teeth are encapsulated in a nonmagnetic structure, allowing a more compact design.

scholarly journals Performance comparison of axial-flux switched reluctance machines with non-oriented and grain-oriented electrical steel rotors

Open Physics ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 981-988
Author(s):  
Racha Aydoun ◽  
Guillaume Parent ◽  
Abdelmounaïm Tounzi ◽  
Jean-Philippe Lecointe
Keyword(s):  
Electrical Steel ◽  
Performance Comparison ◽  
Axial Flux ◽  
Switched Reluctance ◽  
Machine Performance ◽  
Rotating Machine ◽  
Reluctance Machine ◽  
Switched Reluctance Machines ◽  
The Impact ◽  
Static Torque

Abstract This paper studies the performance of an axial-flux switched reluctance machine (AFSRM) using GOES (grain-oriented electrical steel) in its rotor and comparing it to a NOES (non-oriented electrical steel) rotor. Indeed, the AFSRM structure lends itself well to the use of GOES, especially at the rotor. In order to evaluate the intrinsic capabilities of the AFSRM, self-inductance versus rotor position and static torque were numerically simulated at a given operating point and used as indicators for the NOES and GOES performance comparison. The static torque is also used to determine and compare the torque per volume ratios and grasp the impact of GOES use in a 3D rotating structure. The introduction of GOES in a rotating machine leads to an improvement of the electromagnetic torque mean and maximum values, allowing to evaluate the GOES impact on the machine performance.

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