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Mr. Hyo-Seob Shin
Chungnam National University, Republic of Korea

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0 generator
0 PMSM control
0 motor design
0 PMSM design
0 PMSM multi-objective optimization

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Journal article
Published: 23 August 2021 in Electronics
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In this study, a magnetic field is analyzed using an analytical method and compared with the electromagnetic characteristics of 8-pole 9-slot and 8-pole 12-slot permanent magnet synchronous machines considering rotor eccentricity. The magnetic flux density and back electromotive force (EMF) are derived using perturbation theory and electromagnetic theory. First, the Fourier modeling of a permanent magnet is performed through magnetization modeling, and two analysis regions are set based on several assumptions for applying the analytical method. Accordingly, the governing equations of the analysis regions are derived in the form of Poisson and Laplace equations. In addition, the undefined coefficients of the general solutions are calculated through general solutions and appropriate boundary conditions, and the magnetic flux density and back EMF of the air gap region are derived based on the definition of the magnetic vector potential. The results obtained using the analytical method are compared with the finite element method and experimental results. In addition, we perform a torque analysis considering rotor eccentricity and analyze the torque ripple based on rotor eccentricity for two cases involving the pole/slot combination.

ACS Style

Hoon-Ki Lee; Tae-Kyoung Bang; Jeong-In Lee; Jong-Hyeon Woo; Hyo-Seob Shin; Ick-Jae Yoon; Jang-Young Choi. Analytical Study and Comparison of Electromagnetic Characteristics of 8-Pole 9-Slot and 8-Pole 12-Slot Permanent Magnet Synchronous Machines Considering Rotor Eccentricity. Electronics 2021, 10, 2036 .

AMA Style

Hoon-Ki Lee, Tae-Kyoung Bang, Jeong-In Lee, Jong-Hyeon Woo, Hyo-Seob Shin, Ick-Jae Yoon, Jang-Young Choi. Analytical Study and Comparison of Electromagnetic Characteristics of 8-Pole 9-Slot and 8-Pole 12-Slot Permanent Magnet Synchronous Machines Considering Rotor Eccentricity. Electronics. 2021; 10 (16):2036.

Chicago/Turabian Style

Hoon-Ki Lee; Tae-Kyoung Bang; Jeong-In Lee; Jong-Hyeon Woo; Hyo-Seob Shin; Ick-Jae Yoon; Jang-Young Choi. 2021. "Analytical Study and Comparison of Electromagnetic Characteristics of 8-Pole 9-Slot and 8-Pole 12-Slot Permanent Magnet Synchronous Machines Considering Rotor Eccentricity." Electronics 10, no. 16: 2036.

Communication
Published: 29 March 2021 in Machines
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In this study, the iron losses of high flux density concentrated winding-type interior permanent magnet synchronous motors for three different magnet shapes (single-V, single-flat, and dual-delta) and rotor structures are analyzed and compared. Iron loss is analyzed using the classical Steinmetz equation (CSE) based on the frequency separation approach using the iron loss material table, and each rotor type is compared. In addition, to validate the hysteresis loss for each rotor type, two additional analyses are performed. In the methods considered, the number of minor loops is counted, and the area is calculated based on DC bias. The eddy current loss is compared using two approaches: CSE base frequency separation and the homogenization method considering the skin effect. This study primarily focuses on the comparison of relative iron losses based on different rotor topologies instead of absolute comparisons.

ACS Style

Chan-Ho Baek; Hyo-Seob Shin; Jang-Young Choi. Iron Loss Analysis of a Concentrated Winding Type Interior Permanent Magnet Synchronous Motor with Single and Dual Layer Magnet Shape. Machines 2021, 9, 74 .

AMA Style

Chan-Ho Baek, Hyo-Seob Shin, Jang-Young Choi. Iron Loss Analysis of a Concentrated Winding Type Interior Permanent Magnet Synchronous Motor with Single and Dual Layer Magnet Shape. Machines. 2021; 9 (4):74.

Chicago/Turabian Style

Chan-Ho Baek; Hyo-Seob Shin; Jang-Young Choi. 2021. "Iron Loss Analysis of a Concentrated Winding Type Interior Permanent Magnet Synchronous Motor with Single and Dual Layer Magnet Shape." Machines 9, no. 4: 74.

Communication
Published: 17 January 2021 in Machines
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This study presents an optimal double-pole magnetization brushless DC (BLDC) motor design, compared to a single-pole magnetization BLDC motor in terms of electromagnetic performance. Initially, a double-pole model is selected based on the permanent magnet (PM) of the single-pole model. The pole separation space, which is generated in the magnetization process of the double-pole PM, is selected based on the pole space of the single-pole model. Moreover, the PM offset is selected considering the PM volume of the single-pole model. Further, an optimal model is selected using the multiple response optimal method, which is a type of response surface methodology (RSM). The objective of the optimal design is to maintain the back EMF and decrease the cogging torque; the design variables include the pole separation space and PM offset. The experimental points of the initial model are designed using the central composite method (CCD). Finally, the optimization is verified by comparing the experimental and analysis results of the single-pole model with the analysis results of the optimal model.

ACS Style

Hyo-Seob Shin; Gang-Hyeon Jang; Kyung-Hun Jung; Seong-Kook Cho; Jang-Young Choi; Hyeon-Jae Shin. Optimal Design of Double-Pole Magnetization BLDC Motor and Comparison with Single-Pole Magnetization BLDC Motor in Terms of Electromagnetic Performance. Machines 2021, 9, 18 .

AMA Style

Hyo-Seob Shin, Gang-Hyeon Jang, Kyung-Hun Jung, Seong-Kook Cho, Jang-Young Choi, Hyeon-Jae Shin. Optimal Design of Double-Pole Magnetization BLDC Motor and Comparison with Single-Pole Magnetization BLDC Motor in Terms of Electromagnetic Performance. Machines. 2021; 9 (1):18.

Chicago/Turabian Style

Hyo-Seob Shin; Gang-Hyeon Jang; Kyung-Hun Jung; Seong-Kook Cho; Jang-Young Choi; Hyeon-Jae Shin. 2021. "Optimal Design of Double-Pole Magnetization BLDC Motor and Comparison with Single-Pole Magnetization BLDC Motor in Terms of Electromagnetic Performance." Machines 9, no. 1: 18.

Journal article
Published: 27 November 2020 in Applied Sciences
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In this study, we performed an electromagnetic characteristic analysis of a permanent magnet synchronous machine considering the current waveform based on static rotor eccentricity. First, the characteristics of the back electromotive force were analyzed through the no-load analysis of the analysis model according to static rotor eccentricity. Next, a dynamic analysis was performed through mathematical modeling of a permanent magnet synchronous motor and PWM method. The input current during operation was derived through the dynamic analysis, and the core loss analysis was performed using derived input current. The core loss analysis was performed using the case where the fundamental wave current was applied and the input current derived through the dynamic analysis, and the results were compared.

ACS Style

Hoon Ki Lee; Tae Kyoung Bang; Jong Hyeon Woo; Hyo Seob Shin; Jang Young Choi. Electromagnetic Characteristic Analysis of Permanent Magnet Synchronous Machine Considering Current Waveform According to Static Rotor Eccentricity. Applied Sciences 2020, 10, 8453 .

AMA Style

Hoon Ki Lee, Tae Kyoung Bang, Jong Hyeon Woo, Hyo Seob Shin, Jang Young Choi. Electromagnetic Characteristic Analysis of Permanent Magnet Synchronous Machine Considering Current Waveform According to Static Rotor Eccentricity. Applied Sciences. 2020; 10 (23):8453.

Chicago/Turabian Style

Hoon Ki Lee; Tae Kyoung Bang; Jong Hyeon Woo; Hyo Seob Shin; Jang Young Choi. 2020. "Electromagnetic Characteristic Analysis of Permanent Magnet Synchronous Machine Considering Current Waveform According to Static Rotor Eccentricity." Applied Sciences 10, no. 23: 8453.

Journal article
Published: 07 February 2020 in IEEE Transactions on Applied Superconductivity
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ACS Style

Hyo-Seob Shin; Kyung-Hun Shin; Gang-Hyeon Jang; Seong-Kook Cho; Kyung-Hun Jung; Jang-Young Choi. Experimental Verification and 2D Equivalent Analysis Techniques of BLDC Motor With Permanent Magnet Overhang and Housing-Integrated Rotor Core. IEEE Transactions on Applied Superconductivity 2020, 30, 1 -5.

AMA Style

Hyo-Seob Shin, Kyung-Hun Shin, Gang-Hyeon Jang, Seong-Kook Cho, Kyung-Hun Jung, Jang-Young Choi. Experimental Verification and 2D Equivalent Analysis Techniques of BLDC Motor With Permanent Magnet Overhang and Housing-Integrated Rotor Core. IEEE Transactions on Applied Superconductivity. 2020; 30 (4):1-5.

Chicago/Turabian Style

Hyo-Seob Shin; Kyung-Hun Shin; Gang-Hyeon Jang; Seong-Kook Cho; Kyung-Hun Jung; Jang-Young Choi. 2020. "Experimental Verification and 2D Equivalent Analysis Techniques of BLDC Motor With Permanent Magnet Overhang and Housing-Integrated Rotor Core." IEEE Transactions on Applied Superconductivity 30, no. 4: 1-5.

Journal article
Published: 01 January 2020 in AIP Advances
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This paper presents a quasi-3D electromagnetic analysis of the multi-pole magnetization BLDC motor. The permanent magnet (PM) of a multi-pole magnetization BLDC motor has several poles in a magnet. The polar separation section of the multi-pole PM is implemented through the magnetization pattern function. The analysis model of this study, as the outer rotor type, has two 3D structures: the PM overhang and housing-integrated rotor core. Because the 3D analysis is time consuming, 3D structures are corrected to 2D analysis model. The PM overhang is corrected by considering the magnitude of magnetic energy, and the housing-integrated rotor core is corrected by considering the radial direction flux of the rotor core. Finally, the corrected 2D analysis model of a multi-pole magnetization BLDC motor is verified experimentally.This paper presents a quasi-3D electromagnetic analysis of the multi-pole magnetization BLDC motor. The permanent magnet (PM) of a multi-pole magnetization BLDC motor has several poles in a magnet. The polar separation section of the multi-pole PM is implemented through the magnetization pattern function. The analysis model of this study, as the outer rotor type, has two 3D structures: the PM overhang and housing-integrated rotor core. Because the 3D analysis is time consuming, 3D structures are corrected to 2D analysis model. The PM overhang is corrected by considering the magnitude of magnetic energy, and the housing-integrated rotor core is corrected by considering the radial direction flux of the rotor core. Finally, the corrected 2D analysis model of a multi-pole magnetization BLDC motor is verified experimentally.

ACS Style

Hyo-Seob Shin; Gang-Hyeon Jang; Jang-Young Choi. Quasi-3D electromagnetic analysis and experimental verification of multi-pole magnetization BLDC motor. AIP Advances 2020, 10, 015218 .

AMA Style

Hyo-Seob Shin, Gang-Hyeon Jang, Jang-Young Choi. Quasi-3D electromagnetic analysis and experimental verification of multi-pole magnetization BLDC motor. AIP Advances. 2020; 10 (1):015218.

Chicago/Turabian Style

Hyo-Seob Shin; Gang-Hyeon Jang; Jang-Young Choi. 2020. "Quasi-3D electromagnetic analysis and experimental verification of multi-pole magnetization BLDC motor." AIP Advances 10, no. 1: 015218.