The Experts below are selected from a list of 1905 Experts worldwide ranked by ideXlab platform
Robert D Lorenz - One of the best experts on this subject based on the ideXlab platform.
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analysis of iron and magnet losses in surface permanent magnet machines resulting from injection based self sensing position estimation
IEEE Transactions on Industry Applications, 2012Co-Authors: Shihchin Yang, Robert D LorenzAbstract:This paper presents a systematic analysis of iron and magnet losses in surface-permanent-magnet (SPM) machines for the position estimation using high-frequency (HF) signal injection. Standard SPM machines with cylindrical rotors are analyzed. It is shown that the magnet eddy current loss due to the superimposed HF signal should be considered for SPM-machine injection-based position estimation. With a proper machine design, the resulting HF Armature Flux linkage in the magnet can convert to the HF leakage Flux in the stator. The decreased magnet eddy current loss can be achieved, leading to better performance on both power conversion and injection-based position estimation. This paper includes the experimental evaluation of two SPM machines with different winding configurations.
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analysis of iron and magnet losses in surface permanent magnet machines resulting from injection based self sensing position estimation
Energy Conversion Congress and Exposition, 2011Co-Authors: Shihchin Yang, Robert D LorenzAbstract:This paper presents a systematic analysis of iron and magnet losses in surface permanent magnet (SPM) machines for the self-sensing (sensorless) position estimation using HF signal injection. It is shown that the magnet eddy current losses due to the superimposed HF signal are significant and should be considered for SPM machine injection-based self-sensing drives. When a SPM machine uses concentrated windings (CW), the resulting HF Armature Flux linkage component is reduced because of the rich HF Armature leakage Fluxes in the stator. The decreased magnet eddy current losses can be achieved, resulting in better performance on both power conversion and self-sensing estimation. Two SPM machine prototypes with different winding configurations are used for experimental evaluation.
Shihchin Yang - One of the best experts on this subject based on the ideXlab platform.
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analysis of iron and magnet losses in surface permanent magnet machines resulting from injection based self sensing position estimation
IEEE Transactions on Industry Applications, 2012Co-Authors: Shihchin Yang, Robert D LorenzAbstract:This paper presents a systematic analysis of iron and magnet losses in surface-permanent-magnet (SPM) machines for the position estimation using high-frequency (HF) signal injection. Standard SPM machines with cylindrical rotors are analyzed. It is shown that the magnet eddy current loss due to the superimposed HF signal should be considered for SPM-machine injection-based position estimation. With a proper machine design, the resulting HF Armature Flux linkage in the magnet can convert to the HF leakage Flux in the stator. The decreased magnet eddy current loss can be achieved, leading to better performance on both power conversion and injection-based position estimation. This paper includes the experimental evaluation of two SPM machines with different winding configurations.
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analysis of iron and magnet losses in surface permanent magnet machines resulting from injection based self sensing position estimation
Energy Conversion Congress and Exposition, 2011Co-Authors: Shihchin Yang, Robert D LorenzAbstract:This paper presents a systematic analysis of iron and magnet losses in surface permanent magnet (SPM) machines for the self-sensing (sensorless) position estimation using HF signal injection. It is shown that the magnet eddy current losses due to the superimposed HF signal are significant and should be considered for SPM machine injection-based self-sensing drives. When a SPM machine uses concentrated windings (CW), the resulting HF Armature Flux linkage component is reduced because of the rich HF Armature leakage Fluxes in the stator. The decreased magnet eddy current losses can be achieved, resulting in better performance on both power conversion and self-sensing estimation. Two SPM machine prototypes with different winding configurations are used for experimental evaluation.
Abdolreza Esmaeli - One of the best experts on this subject based on the ideXlab platform.
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To Cite This Article: Abdolreza Esmaeli, Hossein Farahmand, Mojtaba Khanalizadeh., Comparison of Conventional Salient-Pole Synchronous Generators and Permanent-Magnet-Assisted Salient-Pole Synchronous Generators based on Finite Element Analysis
2020Co-Authors: Abdolreza Esmaeli, Hossein Farahmand, Mojtaba KhanalizadehAbstract:This paper presents a new salient pole synchronous generator. Due to saturation of conventional synchronous generators (SGs), permanent-magnet-assisted salient-pole synchronous generators (PMa-SGs) are presented. PMa-SGs are a new type of salientpole synchronous machines that has permanent magnets (PMs) between the adjacent pole shoes. Placing PMs between adjacent pole shoes leads to a reduction in Flux saturation plus an increase in Armature Flux linkage. In other words, machine can operate at higher capacity. In this paper, a comparative study is carried out between conventional SGs and PMa-SGs based on finite element analysis (FEA). This is done via simulation of a PMa-SG compared to a traditional SG. Simulation Results show superiority of PMa-SGs over SGs
Mojtaba Khanalizadeh - One of the best experts on this subject based on the ideXlab platform.
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To Cite This Article: Abdolreza Esmaeli, Hossein Farahmand, Mojtaba Khanalizadeh., Comparison of Conventional Salient-Pole Synchronous Generators and Permanent-Magnet-Assisted Salient-Pole Synchronous Generators based on Finite Element Analysis
2020Co-Authors: Abdolreza Esmaeli, Hossein Farahmand, Mojtaba KhanalizadehAbstract:This paper presents a new salient pole synchronous generator. Due to saturation of conventional synchronous generators (SGs), permanent-magnet-assisted salient-pole synchronous generators (PMa-SGs) are presented. PMa-SGs are a new type of salientpole synchronous machines that has permanent magnets (PMs) between the adjacent pole shoes. Placing PMs between adjacent pole shoes leads to a reduction in Flux saturation plus an increase in Armature Flux linkage. In other words, machine can operate at higher capacity. In this paper, a comparative study is carried out between conventional SGs and PMa-SGs based on finite element analysis (FEA). This is done via simulation of a PMa-SG compared to a traditional SG. Simulation Results show superiority of PMa-SGs over SGs
M Z Ahmad - One of the best experts on this subject based on the ideXlab platform.
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coil test analysis of wound field three phase Flux switching machine with non overlapping winding and salient rotor
IEEE International Power Engineering and Optimization Conference, 2014Co-Authors: Faisal Khan, Erwan Sulaiman, M Z AhmadAbstract:Topologies for three-phase salient rotor Flux-switching machines having DC field winding are presented and coil test analysis, peak Armature Flux linkage, cogging torque, induced emf and average torque are examined. Salient rotor is used to modulate and switch the polarity of the Flux linkage in the Armature winding and this is the basic principle of operation of these types of machines. Non-overlapping winding and toothed-rotor are the clear advantages of these topologies as the copper losses gets reduce and rotor becomes more robust. Finite Element Analysis (FEA) is used to examine the three phase topology of proposed Wound-field Flux switching motor with non-overlapping winding and salient rotor.