• 2024.12 Transactions on Energy Conversion

J. Lee, J. Yoo* and S. -K. Sul, "Thermal Monitoring of Induction Motors with DC Injection Considering Inverter Nonlinearity Compensation Error," in IEEE Transactions on Energy Conversion, vol. 39, no. 4, pp. 2581-2590, Dec. 2024.

• 2024.01 Transactions on Power Electronics

J. Yoo, J. -H. Lee* and S. -K. Sul, "FEA-Assisted Experimental Parameter Map Identification of Induction Motor for Wide-Range Field-Oriented Control," in IEEE Transactions on Power Electronics, vol. 39, no. 1, pp. 1353-1363, Jan. 2024.

• 2023.05 Transactions on Power Electronics

J. Yun, J. Yoo, S. Cui* and S. -K. Sul, "Model Predictive Control for Six-Step Operation of PMSM Based on Adapted Fast Gradient Method," in IEEE Transactions on Power Electronics, vol. 38, no. 5, pp. 5952-5962, May 2023.

• 2023.01 Transactions on Power Electronics

Y. -R. Lee*, J. Yoo, I. Hwang and S. -K. Sul*, "Analysis of Position Estimation Error in Signal-Injection Sensorless Control Induced by Inverter dv/dt-Based Current Measurement Noise," in IEEE Transactions on Power Electronics, vol. 38, no. 1, pp. 839-851, Jan. 2023.

• 2022.10 Transactions on Power Electronics

J. Yoo, H. -S. Kim and S. -K. Sul, "MTPA Tracking Control of Sensorless IPMSM Based on Square-Wave Voltage Signal Injection," in IEEE Transactions on Power Electronics, vol. 37, no. 10, pp. 12525-12537, Oct. 2022.

• 2022.06 Transactions on Power Electronics

J. Yoo and S. -K. Sul, "Dynamic Overmodulation Scheme for Improved Current Regulation in PMSM Drives," in IEEE Transactions on Power Electronics, vol. 37, no. 6, pp. 7132-7144, June 2022.

• 2022.04 Transactions on Industrial Electronics

J. Yoo, H. -S. Kim and S. -K. Sul, "Design of Frequency-Adaptive Flux Observer in PMSM Drives Robust to Discretization Error," in IEEE Transactions on Industrial Electronics, vol. 69, no. 4, pp. 3334-3344, April 2022.

• 2022.04 Transactions on Power Electronics

H. -S. Kim, J. Yoo and S. -K. Sul, "Online MTPA Operation of IPMSM Based on Dual-Loop Control in Polar Coordinates," in IEEE Transactions on Power Electronics, vol. 37, no. 4, pp. 4431-4441, April 2022.

• 2021.09 Transactions on Power Electronics

J. Yoo, J. Lee and S. Sul, "Analysis of Instability in Torque Control of Sensorless PMSM Drives in Flux Weakening Region," in IEEE Transactions on Power Electronics, vol. 36, no. 9, pp. 10815-10826, Sept. 2021.

• ECCE 2025

To be presented.

• ICEMS 2025

To be presented.

• ECCE 2022

J. Yun, J. Yoo, S. Cui and S. -K. Sul, "Fast Gradient Method Based on Dynamic Programming in Model Predictive Control for PMSM Drives," 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2022, pp. 1-7.

J. Yoo, Y. -R. Lee, H. Kim and S. -K. Sul, "Shielding Technique for Noise Reduction in Hall-Effect Current Sensor of Voltage Source Inverter," 2022 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2022, pp. 1-5.

• ECCE 2021

Y. -R. Lee, J. Yoo and S. -K. Sul, "Switching Frequency Signal-Injection Sensorless Control Robust to Non-Ideal Characteristics of Inverter System for Dual Three-Phase PMSM," 2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021, pp. 4761-4768.

J. Yoo, I. Hwang, Y. -R. Lee and S. -K. Sul, "Gain Scheduling of Full-Order Flux Observer for Sensorless PMSM Drives Considering Magnetic Spatial Harmonics," 2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021, pp. 4769-4774.

• ITEC 2021

J. Yoo and S. -K. Sul, "Stability Analysis of PI-Controller-Type Position Estimator for Sensorless PMSM Drives in Flux Weakening Region," 2021 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2021, pp. 434-438.

• ECCE Asia 2020 (IPEMC 2020)

J. Yoo and S. -K. Sul, "Analysis of Torque Control Stability of PMSM Sensorless Drives in Flux Weakening Region," 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), Nanjing, China, 2020, pp. 1493-1498.

• ECCE 2020

J. Lee, J. Yoo and S. -K. Sul, "Stator Resistance Estimation using DC Injection Robust to Inverter Nonlinearity in Induction Motors," 2020 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2020, pp. 2425-2430.

J. Yoo and S. -K. Sul, "Dynamic Overmodulation for Improved Current Regulation of PMSM," 2020 IEEE Energy Conversion Congress and Exposition (ECCE), Detroit, MI, USA, 2020, pp. 5368-5374.

• ECCE 2019

J. Yoo, J. Lee, S. -K. Sul and N. A. Baloch, "Torque Ripple Reduction in Stator Resistance Estimation using DC Current Injection for Induction Motor Sensorless Drives," 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA, 2019, pp. 7057-7063.