A5035918715- Electric Motor Design and Analysis
- Magnetic Bearings and Levitation Dynamics
- Wireless Power Transfer Systems
- Magnetic Properties and Applications
- Energy Harvesting in Wireless Networks
- Advanced Battery Technologies Research
- Induction Heating and Inverter Technology
- Multilevel Inverters and Converters
- Advanced DC-DC Converters
- Sensorless Control of Electric Motors
- Silicon Carbide Semiconductor Technologies
- RFID technology advancements
- Wind Turbine Control Systems
- Microgrid Control and Optimization
- Real-time simulation and control systems
- Non-Destructive Testing Techniques
- Electric Vehicles and Infrastructure
- Machine Fault Diagnosis Techniques
- Frequency Control in Power Systems
- Innovative Energy Harvesting Technologies
- Tribology and Lubrication Engineering
- Electric and Hybrid Vehicle Technologies
- Phase Change Materials Research
- Electric Power Systems and Control
- Hydraulic and Pneumatic Systems
Delft University of Technology
2017-2025
North China Electric Power University
2023-2024
McMaster University
2017-2021
Flanders Make (Belgium)
2020
Changchun University of Science and Technology
2018
University of Tasmania
2017
Southeast University
2011-2016
Anyang Normal University
2016
Anyang Institute of Technology
2016
North Dakota State University
2000
Abstract. This paper presents the state-of-the-art technologies and development trends of wind turbine drivetrains – system that converts kinetic energy to electrical in different stages their life cycle: design, manufacturing, installation, operation, lifetime extension, decommissioning recycling. Offshore digitalization are also a focal point this study. Drivetrain context includes whole power conversion system: main bearing, shafts, gearbox, generator converter. The aim article is review...
In this paper, core loss characteristics of stator permanent-magnet (PM) machines are analyzed and calculated, in which the unique dc-biased magnetic induction is taken into account. The flux density variation patterns some key points a doubly salient PM (DSPM) machine by two-dimensional time-stepping finite-element method. To calculate other minor hysteresis loops under dc bias, silicon steel sheet condition first tested simple test system based on traditional Epstein frame functional...
This paper presents a comprehensive state-of-the-art review of the modeling and analysis methods for multidisciplinary design electric motors various applications including vehicular power propulsion systems electrified powertrains. It covers important aspects different engineering domains, such as dynamic modeling, loss calculations, demagnetization analysis, thermal acoustic noise vibration mechanical stress modeling. intends to guide motor designers through examples results on how apply...
This paper investigates the surface-mounted permanent-magnet (SPM) and interior (IPM) motors for high-speed applications. An SPM motor an IPM are designed with same power/speed rate key dimensions. Finite-element analysis is used to compare mechanical, electromagnetic, antidemagnetization performances of two motors, lumped parameter thermal networks involved their performances. It can be concluded from comparisons that has comparable electromagnetic in operations, its costs torque per PM...
In this article, an improved deadbeat predictive current control (DPCC) method with parameters identification for surface-mounted permanent magnet synchronous machines (SPMSMs) is proposed. With the proposed DPCC method, zero steady-state error and dynamic response could be achieved, even inaccurate initial motor parameters. On basis of conventional a novel stator resistance inductance developed, which main contribution article. The works based on reconstructed characteristic vector from...
Inductive power transfer (IPT) is becoming increasingly popular in stationary electric vehicle (EV) charging systems. In this paper, the influence of different IPT coupler geometries on performance factors such as efficiency, density, misalignment tolerance, and stray field studied. Four topologies, namely circular, rectangular, double-D (DD-DD), transmitter with double-D-quadrature receiver (DD-DDQ) are considered study. The electromagnetic behavior couplers modeled using three-dimensional...
Offshore wind energy (OWE) is a cornerstone of future clean development. Yet, research into global OWE material demand has generally been limited to few materials and/or low technological resolution. In this study, we assess the primary raw and secondary supply OWE. It includes wide assortment materials, including bulk rare earth elements, key metals, other for manufacturing offshore turbines foundations. Our development scenarios consider important drivers such as growing turbine size,...
Core-loss prediction is an important issue in design and analysis of permanent-magnet (PM) motors. Because the diverse structure, flux distribution, rotational variation flux, it difficult to predict core loss a machine exactly. In this paper, core-loss model for PM motor introduced which loci different parts are predicted by carrying out finite-element transient analysis. Since pattern complicated, improved equation based on conventional three-term expression used calculation. The developed...
This paper investigates the losses of a high-speed permanent magnet motor. The iron are calculated by model that can consider skin effect and rotational loss. rotor eddy current estimated fast hybrid method end effect. Pulse-width modulation (PWM) harmonics brought voltage source inverter (VSI) considered in loss calculations. Then temperature distribution motor is evaluated using results computational fluid dynamic (CFD) modeling. Finally, based on CFD results, structure optimized to...
This paper investigates the electromagnetic and thermal performances of open-circuit air cooled high-speed permanent magnet motor (HSPMM) with Gramme ring windings. Take a 36 kr/min, 75 kW HSPMM as an example, losses, in particular rotor eddy current loss stator iron are calculated. The influences switching frequency gap length on these losses studied. Then, computational fluid dynamics (CFD) model is composed to calculate its coolant flow parameters temperature distribution. Based CFD...
The health management of batteries is a key enabler for the adoption Electric Vertical Take-off and Landing vehicles (eVTOLs). Currently, few studies consider eVTOL batteries. One distinct characteristic eVTOLs that discharge rates are significantly larger during take-off landing, compared with battery needed automotives. Such protocols expected to impact long-run This paper proposes data-driven machine learning framework estimate state-of-health remaining-useful-lifetime under varying...
A three-dimensional analytical modeling of the magnetic field stator-ironless axial flux permanent magnet (AFPM) machine under open-circuit condition is presented in this paper. It involves solution governing equations region between back-irons cylindrical coordinate, which magnets are assumed to be axially magnetized and have constant relative recoil permeability. The proposed method applied a specific AFPM machine, results good agreement with those finite element analysis (FEA).
This paper presents a novel switched-flux memory motor (SFMM) by artfully incorporating the flux-mnemonic concept into conventional permanent magnet machine. The magnetic susceptibility of AlNiCo PM provides flexible online controllability air-gap flux imposing transient current pulse. To uniformize magnetization levels PMs, time-divisional strategy (TDMS) is proposed. Due to uniqueness hysteresis nonlinearity and instability regarding operating point, time-stepping finite element method...
In this article, a position sensorless drive and online parameter estimation method for surface-mounted permanent magnet synchronous machines-based on adaptive full-state feedback current control is proposed. The established by the detection of back-electromotive force in γδ reference frame, which effective at medium-speed high-speed range. Besides, accurate winding resistance, stator inductance, flux linkage PM achieved independently. Compared with traditional recursive-least-square...
This paper proposes an analytical model for the prediction of airgap magnetic field distribution axial flux permanent magnet (AFPM) machine with partial demagnetization. The AFPM geometry is first converted to a polar representation. Consequently, subdomain based on current sheet technique developed. Then representation PM derived consider demagnetization using superposition principle. back electromagnetic forces and cogging torque are obtained accordingly Maxwell's equations. results show...
Due to the urgent desire for a fast, convenient, and efficient battery charging technology electric vehicle (EV) users, extensive research has been conducted into design of high-power inductive power transfer (IPT) systems. However, there are few studies that formulate as multiobjective optimization (MOO) question considering both aligned misaligned performances validate optimal results in full-scale prototype. This article presents comprehensive MOO guideline highly IPT systems demonstrates...
This paper presents a detailed magnetic equivalent circuit (MEC) to improve the analysis accuracy and reduce computation time in modeling of axial flux permanent magnet machines. In proposed MEC model, saturation, armature reaction, leakage flux, rotor rotation are considered calculate machine's static characteristics. The investigated machine structure feature first introduced. Then, air-gap density distribution, back electromotive force waveform, average torque calculated with method....
This paper presents a method to calculate the acoustic noise of conventional switched reluctance motor (CSRM) and mutually coupled (MCSRM). is based on dynamic electromagnetic models, combined with analytical estimation stator eigenmodes radiation efficiency, considering switching effects frame effects. The proposed applied predict compare performances CSRM an MCSRM in wide speed range. results are validated using commercial finite element analysis software, JMAG for electromagnetics ACTRAN...
In this paper, a new hybrid model is proposed for the prediction of air gap magnetic field distribution (MFD) in interior permanent magnet machines with any rotor configuration. The slotless first predicted by finite-element method (FEM) automatic scripting MATLAB to consider saturation iron. Afterward, conformal mapping viz., Schwarz-Christoffel introduced take slotting effect into account. Consequently, MFD could be calculated. back electromagnetic forces, cogging torque, and output torque...
This article presents a parameter recognition-based impedance tuning method for the mismatch caused by capacitance drift and coil misalignment in series–series-compensated wireless power transfer (WPT) systems. First, recognition is proposed to identify unknown parameters of resonant circuits only measuring rms values currents. No phase detection auxiliary measurement coils are required. Furthermore, according recognized parameters, reactance on both sides minimized simultaneously regulating...
Flux-switching permanent magnet (FSPM) machine is a relatively novel brushless machine, which exhibits inherently sinusoidal PM flux-linkage, back-EMF waveforms and high torque capability. However, the air-gap field density difficult to be regulated since it produced by stator magnets alone. Hence, hybrid-excited flux-switching (HEFS) proposed introducing set of windings into an original FSPM machine. in HEFS machines flux linkages armature vary inverse proportion when significantly...
In this paper, a nonlinear magnetic network model (NMNM) is proposed to predict the electromagnetic performance of hybrid-excitation flux-switching (HEFS) machine, in which modeling motive forces (MMF) due field windings specifically investigated. The NMNM enables predictions air-gap flux-density distributions, flux linkage, back-electromotive force (back-EMF), and inductances both armature under different excitation conditions, including pure magnets, currents, hybrid excitations. predicted...