Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions

Yang, Guohui; Zhang, Shuo; Zhang, Chengning

doi:10.3390/app10207232

Cited by 8 publications

(5 citation statements)

References 24 publications

(28 reference statements)

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“…In contrast to works [3,4,8], in this study (Fig. 6, 8) the results were obtained, which show the mutual influence of individual sheets of the charged magnetic core on each other at different frequencies of remagnetization processes.…”

Section: Discussion Of the Results Of Mathematical Modeling Of Physic...contrasting

confidence: 78%

“…This must be taken into account when designing electric machines in accordance with real research projects. In [3], the characteristic operating points of the magnetization curve under different operating conditions at different power supply frequencies are distinguished. A harmonic analysis of the flux density in the air gap, phase current, losses in the core was carried out and a detailed comparative analysis was performed.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

Research of high-frequency remagnetization model in laminated magnetic cores of electromechanical and electromagnetic energy converters

Kovalenko,

Chumack,

Tymoshchuk

et al. 2023

EEJET

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The object of research in the work is charged magnetic conductors of electric machines and transformers. Laminated magnetic wire together with windings are important active parts of electric machines that participate in electromechanical energy conversion. The reliability of the entire machine is mainly determined by the actual condition of the inter-sheet insulation. Violation of the insulation causes parasitic eddy current circuits, which increases the specific losses, and also significantly affects the additional heating of the magnet wire and winding. The normative method for determining the quality of the charged core is the assessment of specific losses at a frequency of 50 Hz and an induction of 1 T, which should not exceed 2.5–4 W/kg. To determine local damage to the core, methods of local heating and fixation of overheating sites are used, which should not exceed 45 °C compared to the main part of the magnetic core. In the work, a two-dimensional field mathematical model of a charged magnetic circuit is developed. This makes it possible to carry out electromagnetic calculations in a near-real magnetic conductor, taking into account the variability of magnetic permeability, hysteresis, and the interaction of currents in adjacent plates of the magnetic conductor with each other, the so-called "proximity effect". On the basis of the developed models, graphs of current distribution and distribution of magnetic induction in one, two and three sheets were obtained. The resulting graphs show how the effect of current displacement increases with increasing frequency, where at a frequency of 100 kHz the magnetic induction density in the middle of the sheet goes to zero. The results of the research confirm the correctness of the model development in comparison with the classical calculation models also given, which allows them to be used for further research of high-frequency processes in charged magnetic circuits of electric machines

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Section: Discussion Of the Results Of Mathematical Modeling Of Physic...contrasting

confidence: 78%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Research of high-frequency remagnetization model in laminated magnetic cores of electromechanical and electromagnetic energy converters

Kovalenko,

Chumack,

Tymoshchuk

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…Various additional terms for flux density are used to offset the increased hysteresis and eddy current loss resulting from the non-linear behavior of the magnetic chain in the silicon steel sheet and the higher harmonic magnetic field. This issue has been extensively discussed in reference [13]. It is widely assumed that the three phase windings of the stator exhibit symmetrical characteristics [14].…”

Section: Motor Continuous State-space Model and State Variables For Mpcmentioning

confidence: 99%

Active Disturbance Rejection Control Based Sensorless Model Predictive Control for PMSM

Dahnoun,

Bourek,

Ammar

et al. 2024

JESA

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Improving tracking performance in speed controllers for permanent-magnet synchronous motor (PMSM) drive systems is critical due to internal challenges such as parameter variations, model uncertainty, and external disturbances like load changes. This paper proposes a new method that combines sensorless model predictive control (MPC) with active disturbance rejection control (ADRC), employing an extended state observer (ESO) as a key component of the ADRC. Notably, the proposed ADRC-MPC control integrates the advantages of MPC, such as good time response, high robustness against load variation, and a low effect of parameter variation in comparison to conventional control methods like field-oriented control (FOC). The ADRC-MPC reduces torque and flux ripples and also reduces torque and flux irregularities as well as current harmonics, which presents a major drawback in direct torque control (DTC). The proposed control with finite set model predictive control (FS-MPC) eliminates the PWM modulation and the complexity of continuous control set model predictive control (CCS-MPC). In the outer loop, the ADRC-MPC and the ESO present a very good solution. It presents a lower processing requirement than other controllers, especially the fuzzy logic controller (FLC), and also presents a consistent dynamic behavior across the entire operating range, contrary to the PID. The ADRC with ESO presents a promising solution to these challenges. The effectiveness of the proposed method is demonstrated through numerical simulations using MATLAB/Simulink software and experiments on a 3-kW surface-mounted PMSM drive system. both simulation and experimental results under different conditions show the effectiveness of the proposed approach.

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“…Limiting the minimum pulse length decreases the losses caused by the current-collapse and increases the motor losses. The increase in motor losses is caused mainly by the additional iron losses since the voltage distortion introduces the current distortion, leading to distorted flux density distribution in the machine core [25]. Therefore, the aim is to find an optimum minimum pulse length that mitigates the negative influence of current-collapse and, at the same time, does not significantly increase the machine losses.…”

Section: Drive Losses Analysismentioning

confidence: 99%

Current Collapse Conduction Losses Minimization in GaN Based PMSM Drive

2022

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The ever-increasing demands on the efficiency and power density of power electronics converters lead to the replacement of traditional silicon-based components with new structures. One of the promising technologies represents devices based on Gallium-Nitride (GaN). Compared to silicon transistors, GaN semiconductor switches offer superior performance in high-frequency converters, since their fast switching process significantly decreases the switching losses. However, when used in hard-switched converters such as voltage-source inverters (VSI) for motor control applications, GaN transistors increase the power dissipated due to the current conduction. The loss increase is caused by the current-collapse phenomenon, which increases the dynamic drain-source resistance of the device shortly after the turn-on. This disadvantage makes it hard for GaN converters to compete with other technologies in electric drives. Therefore, this paper offers a purely software-based solution to mitigate the negative consequences of the current-collapse phenomenon. The proposed method is based on the minimum pulse length optimization of the classical 7-segment space-vector modulation (SVM) and is verified within a field-oriented control (FOC) of a three-phase permanent magnet synchronous motor (PMSM) supplied by a two-level GaN VSI. The compensation in the control algorithm utilizes an offline measured look-up table dependent on the machine input power.

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Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions

Cited by 8 publications

References 24 publications

Research of high-frequency remagnetization model in laminated magnetic cores of electromechanical and electromagnetic energy converters

Research of high-frequency remagnetization model in laminated magnetic cores of electromechanical and electromagnetic energy converters

Active Disturbance Rejection Control Based Sensorless Model Predictive Control for PMSM

Current Collapse Conduction Losses Minimization in GaN Based PMSM Drive

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