A General and Accurate Iron Loss Calculation Method Considering Harmonics Based on Loss Surface Hysteresis Model and Finite-Element Method

Zhu, Qiuguo; Wu, Quanpeng; Li, Wei; Pham, Minh-Trien; Zhu, Lixun

doi:10.1109/tia.2020.3036017

Cited by 15 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where k h , k c , and k e are the coefficients of the hysteresis loss, eddy current loss, and additional loss, respectively. Assuming that there are no minor loops present in the hysteresis loop, the hysteresis loss depends on the peak of the magnetic flux density only [31]. B py and B py are the peaks of magnetic flux density on the hysteresis loop inside the yoke and tooth, respectively.…”

Section: B Iron Lossmentioning

confidence: 99%

Cooling Improvement for High-Power-Density Shell-Mounted Underwater Propulsion Motors with Heat Bridges

Ou,

Hu,

Mao

et al. 2024

JMSE

View full text Add to dashboard Cite

Subject to an autonomous underwater vehicle (AUV) with rigorously limited space and weight, the high-power-density propulsion motor urgently needs an efficient cooling method to improve reliability and stability. In this paper, a cooling improvement method based on heat bridges (HBs) is proposed for the shell-mounted propulsion motor (SmPM) of the AUVs. First, the electromagnetic and thermal characteristics of a 150 kW SmPM are analyzed using a numerical method. Then, a prototype was developed and tested to verify the accuracy of the numerical calculation. Subsequently, in order to further improve the cooling performance of the motor with minimal weight increment, this paper proposes HBs mounted on the end winding. The maximum winding temperature of the motor containing the proposed HBs is decreased by 20 K at the rated operation state. Based on the validated numerical method, the effects of topologies, materials, and geometric parameters on the cooling effect are investigated. Furthermore, according to the required operating time, the SmPM is optimized based on the cooling performance improvement provided by the proposed HBs. The results show that in addition to the benefit of the cooling improvement contributed by the proposed HB, the weight of the propulsion motor is reduced by 7.14%.

show abstract

Section: B Iron Lossmentioning

confidence: 99%

Cooling Improvement for High-Power-Density Shell-Mounted Underwater Propulsion Motors with Heat Bridges

Ou,

Hu,

Mao

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…Thus, some doubts arose if higher iron losses will be obtained for the new design or not. As the accurate iron loss calculation in case of multiple flux density harmonics is non-trivial and still an open research topic [29], [30], [31], it was decided to not consider the iron losses for efficiency determination.…”

Section: E Current Waveform Optimizationmentioning

confidence: 99%

Optimization of PMSMs Considering Multi-Harmonic Current Waveforms: Theory, Design Aspects, and Experimental Verification

Bramerdorfer

Amrhein

2023

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

This article is about investigating the potential of multi-harmonic design of permanent magnet synchronous machines. Thereby, multi-harmonic refers to the temporal periodic characteristics of linked fluxes and currents of the stator phases in order to ensure high-efficient operation with very low torque ripple. At first, a suitable model allowing for multi-harmonic currents evaluation is derived. Consequently, an interior-rotor IPM machine is studied. In order to have a fair comparison with conventional PMSMs featuring sinusoidal currents, an optimization scenario is defined where the same outer dimensions as well as magnet and copper volume for both design variants are considered. The use of multiple current harmonics requires a dedicated strategy for evaluating machine designs, as the conventional dq-grid analysis cannot be utilized. The introduced approach is applied and results of the optimization are illustrated. Prototypes were manufactured and machine designs were subsequently evaluated through experiments. A valuable lesson learned during practical implementation regarding rotor angle determination is highlighted. Measurement results reveal that adding more degrees of freedom in terms of multiple harmonics can give significant improvements for performance measures efficiency and torque ripple. This particularly holds if the harmonics are already considered throughout the machine design and optimization process, rather than only at post-processing stage.

show abstract

“…1 (a)-(b) show the NL-test results. Detailed step-wise procedure for these test in line with IEC-60034-3-2 is discussed in [19], [20]. Given the fact that, SL-estimation is highly sensitive to the torque and current measurements [29], the equipments used are selected in compliance with IEEE 112-B (i.e, 0.2% accuracy for voltage and current measurements and, 0.5% accuracy for toque and speed measurements).…”

Section: B Measurement Proceduresmentioning

confidence: 99%

“…here, X mi and, X lRi are the magnetising and rotor-leakage reactances w.r.t. i-th harmonic, P Out = P Sha f t + P Windage + P Bearing (20) and, P Sha f t = T Sha f t ω r (21)…”

Section: B Measurement Proceduresmentioning

confidence: 99%

Formulation of Stray Loss in Medium Power Inverter-fed Induction Motors

Kumar¹,

Sah²,

Kumar³

2021

Preprint

View full text Add to dashboard Cite

<div>The work presents a fast and accurate empirical stray loss model for inverter fed three-phase induction motors (IMs). The model is intended to quantify the SL both at the design stage and, normal operation of the IM. The development of the model considers the variations of frequency, switching frequency and motor’s loading. Test data of 128 operating points of two training IMs are used to develop the model. The accuracy and prediction capability of the proposed model is presented with the measured SL values for 128 operating points of another set of two IMs of the same specifications and different geometries.</div>

show abstract

A General and Accurate Iron Loss Calculation Method Considering Harmonics Based on Loss Surface Hysteresis Model and Finite-Element Method

Cited by 15 publications

References 24 publications

Cooling Improvement for High-Power-Density Shell-Mounted Underwater Propulsion Motors with Heat Bridges

Cooling Improvement for High-Power-Density Shell-Mounted Underwater Propulsion Motors with Heat Bridges

Optimization of PMSMs Considering Multi-Harmonic Current Waveforms: Theory, Design Aspects, and Experimental Verification

Formulation of Stray Loss in Medium Power Inverter-fed Induction Motors

Contact Info

Product

Resources

About