Sensitivity analysis on electrical parameters for Permanent Magnet Synchronous Machine manufacturing tolerances in EV and HEV

Khreis, Hussein; Deflorio, Andrea; Voelz, Karsten; Schmuelling, Benedikt

doi:10.1109/itec.2016.7520221

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Many studies have been carried out to investigate the impact of mechanical tolerance on electrical parameters. Reference [11] has conducted a sensitivity analysis to determine its impact on the electrical parameters of PMG using the finite element method (FEM) by changing the design variable in the range of tolerance values. Research to investigate the effect of tolerances and manufacturing limits on permanent magnet generators with large dimensions has also been carried out by [12].…”

Section: Introductionmentioning

confidence: 99%

Geometrical and dimensional tolerance analysis for the radial flux type of permanent magnet generator design

Hikmawan

Wibowo

Kasim

2021

J. Mechatron. Electr. Power Veh. Technol.

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Mechanical tolerance is something that should be carefully taken into consideration and cannot be avoided in a product for manufacturing and assembly needs, especially in the design stage, to avoid excessive dimensional and geometric deviations of the components made. This paper discusses how to determine and allocate dimensional and geometric tolerances in the design of a 10 kW, 500 rpm radial flux permanent magnet generator prototype components. The electrical and mechanical design results in the form of the detailed nominal dimensions of the generator components, and the allowable air gap range are used as input parameters for tolerance analysis. The values of tolerance allocation and re-allocation process are carried out by considering the capability of the production machine and the ease level of the manufacturing process. The tolerance stack-up analysis method based on the worst case (WC) scenario is used to determine the cumulative effect on the air gap distance due to the allocated tolerance and to ensure that the cumulative effect is acceptable so as to guarantee the generator's functionality. The calculations and simulations results show that with an air gap of 1 ± 0.2 mm, the maximum air gap value obtained is 1.1785 mm, and the minimum is 0.8 mm. The smallest tolerance value allocation is 1 µm on the shaft precisely on the FSBS/SRBS feature and the rotor on the RPMS feature. In addition, the manufacturing process required to achieve the smallest tolerance allocation value is grinding, lapping, and polishing processes.

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Section: Introductionmentioning

confidence: 99%

Geometrical and dimensional tolerance analysis for the radial flux type of permanent magnet generator design

Hikmawan

Wibowo

Kasim

2021

J. Mechatron. Electr. Power Veh. Technol.

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“…The tolerances on the material properties have been taken into account mainly in Permanent Magnet (PM) motors, [9], [10]. Robust design methods accounting for PM properties deviation are proposed in [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

A Robust Design Methodology for Synchronous Reluctance Motors

Credo

Fabri

Villani

et al. 2020

IEEE Trans. Energy Convers.

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The improvement of the robustness of the performance of electrical machines in presence of neglected features, such as manufacturing tolerances and deviations in material properties and parameters, is increasingly demanded. The available optimization procedures do not account for manufacturing tolerances, leaving the decision process incomplete. The paper proposes a methodology for the selection of the more robust design towards manufacturing tolerances among the best candidates, detected by an optimization procedure. Statistical tools for tolerance analysis and worst-case analysis are discussed and adopted for the scope. The proposed methodology is used to select a robust design with respect to torque ripple deviations due to geometric tolerances in the laminations of a Synchronous Reluctance Motor with fluid shaped barriers. The statistical performance analysis and the worst-case analysis provide an estimation of the performance deterioration in the presence of the tolerances in the manufacturing process.

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Investigation of DC‐bus control modes and impacts on energy yield for a modular HVDC wind drive train

da Rocha,

Verkroost,

Vansompel

et al. 2024

IET Renewable Power Gen

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This article aims to investigate different dc‐bus voltage balancing control modes for a modular HVDC drive train applied to offshore wind energy. The modular structure discussed consists of a stacked polyphase bridge converter connected to the modules of a segmented generator. Three voltage control modes are analysed: non‐voltage balancing, voltage balancing allowing overcurrent, and voltage balancing with power derating. Assembly imperfections and operation differences can cause parametric deviations across modules leading to generation unbalance. When operating with voltage balancing with power derating, none has ac overcurrent or dc overvoltage. However, when the turbine is already operating at nominal power, a reduction in total power is required for this to occur. On the other hand, non‐voltage balancing or voltage balancing allowing overcurrent could bring more generated power to the system as the optimal output power allows dc overvoltage or ac overcurrent in some of the modules, respectively. Therefore, there is a trade‐off between efficiency and oversizing the system's components. A sensitivity analysis is performed to identify the expected dc‐bus voltage deviation. Experimental results in a low‐power prototype validate the voltage balancing control modes and a case study demonstrates the impact on energy yield in an offshore wind turbine.

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Sensitivity analysis on electrical parameters for Permanent Magnet Synchronous Machine manufacturing tolerances in EV and HEV

Cited by 4 publications

References 13 publications

Geometrical and dimensional tolerance analysis for the radial flux type of permanent magnet generator design

Geometrical and dimensional tolerance analysis for the radial flux type of permanent magnet generator design

A Robust Design Methodology for Synchronous Reluctance Motors

Investigation of DC‐bus control modes and impacts on energy yield for a modular HVDC wind drive train

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