Coupled Electromagnetic-Thermal Analysis for Predicting Traction Motor Characteristics According to Electric Vehicle Driving Cycle

Hwang, Sung-Woo; Ryu, Jun-Yeol; Chin, Jun-Woo; Park, Soo-Hwan; Kim, Dae‐Kee; Lim, Myung-Seop

doi:10.1109/tvt.2021.3071943

Cited by 24 publications

(9 citation statements)

References 45 publications

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“…Literature [5] analyzed the two-dimensional temperature field of motor, ignoring the distribution and change of the motor along the axis. Literature [6] used equivalent thermal network method and finite element method respectively to calculate the stable temperature rise and transient temperature rise of an electric vehicle motor under rated working conditions, and verified the adaptability and compatibility of the two methods. In literature [7], the effect of rotor pole optimization on the loss and temperature rise of interior permanent magnet synchronous motor was studied, and then verified by finite element magnetic thermal coupling analysis.…”

Section: Introductionmentioning

confidence: 93%

“…The use of magneto-thermal coupling finite element analysis can save the simulation time, while having a better computational accuracy. Generally, there are two schemes for the coupling of the electromagnetic field and the temperature field, unidirectional coupling and bidirectional coupling [17][18] . In unidirectional coupling, the electromagnetic field calculation and the temperature field calculation are carried out separately, and the results of the electromagnetic field are directly used in the calculation of the temperature field.…”

Section: Magneto-thermal Bi-directional Coupling Finite Element Simul...mentioning

confidence: 99%

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Analytical Modeling of Eddy Current Loss and Thermal Analysis of Non-Uniform Air Gap Combined Pole Permanent Magnet Motors for Electric Vehicles

Ma,

Chen,

et al. 2024

Preprint

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In order to solve the problem of large eddy current loss and high temperature rise caused by large amount of permanent magnet, a new type of combined magnetic pole permanent magnet motor is proposed in this paper. The sinusoidal distribution subdomain model of non-uniform air gap rotor is established by using Laplace equation, and the analytical expression of eddy current loss of rotor in uniform air-gap and non-uniform air-gap is derived. The effect of rotor eccentricity on eddy current loss is obtained. According to the characteristics of distributed winding of non-uniform air gap combined pole permanent magnet motor, equivalent treatment is performed to obtain the equivalent thermal conductivity, so as to establish equivalent thermal network model of motor, calculate the temperature value of each component of the motor, and verify the correctness of the thermal network model through the method of magnetothermal bidirectional coupling. Finally, an experimental platform is set up to carry out temperature rise experiments on the two prototypes respectively. Experimental results show that the non-uniform air-gap rotor structure can effectively reduce the rotor eddy current loss and motor temperature rise, and also verify the accuracy of the analytical model calculation results.

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Section: Introductionmentioning

confidence: 93%

Section: Magneto-thermal Bi-directional Coupling Finite Element Simul...mentioning

confidence: 99%

Analytical Modeling of Eddy Current Loss and Thermal Analysis of Non-Uniform Air Gap Combined Pole Permanent Magnet Motors for Electric Vehicles

Ma,

Chen,

et al. 2024

Preprint

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“…Currently, electric vehicles report their range according to the WLTP standard (Worldwide Harmonised Light Vehicles Test Procedure), which is a dynamometer test [33,34]. Electric vehicles available in the Polish market (the market covered by the research presented in this paper) are characterized by different maximum vehicle ranges, defined according to the mentioned standard (Figure 5).…”

Section: Energy Consumption Of Electric Vehicle In Real Driving Conditions (Rdc)mentioning

confidence: 99%

Capabilities of Nearly Zero Energy Building (nZEB) Electricity Generation to Charge Electric Vehicle (EV) Operating in Real Driving Conditions (RDC)

et al. 2021

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The growing number of electric vehicles in recent years is observable in almost all countries. The country’s energy transition should accompany this rise in electromobility if it is currently generated from non-renewable sources. Only electric vehicles powered by renewable energy sources can be considered zero-emission. Therefore, it is essential to conduct interdisciplinary research on the feasibility of combining energy recovery/generation structures and testing the energy consumption of electric vehicles under real driving conditions. This work presents a comprehensive approach for evaluating the energy consumption of a modern public building–electric vehicle system within a specific location. The original methodology developed includes surveys that demonstrate the required mobility range to be provided to occupants of the building under consideration. In the next step, an energy balance was performed for a novel near-zero energy building equipped with a 199.8 kWp photovoltaic installation, the energy from which can be used to charge an electric vehicle. The analysis considered the variation in vehicle energy consumption by season (winter/summer), the actual charging profile of the vehicle, and the parking periods required to achieve the target range for the user.

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“…Various co-simulations have been performed to ensure that the designed motor performs optimally in the applied system. An analysis method that combines electromagnetic and thermal analyses for the accurate analysis of heat-generation characteristics of a motor [6][7][8] and various co-simulation methods that combine the optimization technique with the motor design [9][10][11] have been reported. In addition, combined research on motor design and motor control to obtain a detailed analysis of a motor's behavior has received considerable attention.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of an Inverter-Fed PMSM for a Brake System Considering Variation in Motor Control Parameters and Input Voltage

Hwang

Yoon

2022

Applied Sciences

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This study proposes an optimal design approach for an inverter-fed permanent magnet synchronous motor (PMSM) considering the variation in motor control parameters and input voltage (inverter output voltage), which vary with respect to the temperature and loading conditions, in an integrated brake system. In an integrated brake system, a quick response to load changes is crucial. Therefore, in this study, to consider the fluctuation in control variables and input voltage, the motor control parameters and input voltage were first calculated according to the operating temperature and loading condition. Subsequently, based on the calculated conditions and the approximated motor input voltage and control parameters, the objective functions corresponding to motor characteristics in transient and steady states were formulated using design-of-experiment (DOE), the moving least square method (MLSM), and the finite element method (FEM). Finally, the optimal design was performed using the genetic algorithm (GA). The validity of the proposed optimal design approach was verified by comparing its optimization results with the FEM analysis results. Thus, it was confirmed that a motor can be designed for an integrated brake system by considering the motor control parameters and motor input voltage, which vary with the driving conditions.

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Coupled Electromagnetic-Thermal Analysis for Predicting Traction Motor Characteristics According to Electric Vehicle Driving Cycle

Cited by 24 publications

References 45 publications

Analytical Modeling of Eddy Current Loss and Thermal Analysis of Non-Uniform Air Gap Combined Pole Permanent Magnet Motors for Electric Vehicles

Analytical Modeling of Eddy Current Loss and Thermal Analysis of Non-Uniform Air Gap Combined Pole Permanent Magnet Motors for Electric Vehicles

Capabilities of Nearly Zero Energy Building (nZEB) Electricity Generation to Charge Electric Vehicle (EV) Operating in Real Driving Conditions (RDC)

Optimal Design of an Inverter-Fed PMSM for a Brake System Considering Variation in Motor Control Parameters and Input Voltage

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