Publications

International Conferences

2024

S. Moon, J. Park, D. Kim and S. Cui, "Generator Operation Strategy for Naval Vessels with MVDC Distribution in Combat Situations," 2025 IEEE Electric Ship Technologies Symposium (ESTS), Alexandria, VA, USA, 2025, pp. 149-153, doi: 10.1109/ESTS62818.2025.11152412.

J. Park et al., "MMC-Based High-Power Motor Emulator for Testing of Electrical Propulsion System," 2025 IEEE Electric Ship Technologies Symposium (ESTS), Alexandria, VA, USA, 2025, pp. 162-169, doi: 10.1109/ESTS62818.2025.11152450. 

J. Yun, J. Park, S. Moon, G. De Carne and S. Cui, "Resource-Efficient Real-Time Simulation of Multi-Active Bridge Converters Using Modular Programming," 2025 IEEE Kiel PowerTech, Kiel, Germany, 2025, pp. 1-6, doi: 10.1109/PowerTech59965.2025.11180564.

J. Lee, J. -J. Jung and S. Cui, "Equivalent Virtual Inductance Method Without Differential Operation for Current-Limiting Control of Grid-Forming Converters," 2025 IEEE 16th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Nanjing, China, 2025, pp. 1-6, doi: 10.1109/PEDG62294.2025.11060241. 

Y. Chung, J. Lee, C. Lee, H. Kim, D. Kim and S. Cui, "Bipolar DC/DC Converter for HVDC to MVDC Connection with MMC and Zig-Zag Transformer," 2024 International Conference on HVDC (HVDC), Urumqi, China, 2024, pp. 129-133, doi: 10.1109/HVDC62448.2024.10723010.

J. Maeng, J. -J. Jung and S. Cui, "Enhanced Current-limiting Method for Grid-forming Converters based on Virtual Admittance Matrix," 2024 9th IEEE Workshop on the Electronic Grid (eGRID), Santa Fe, NM, USA, 2024, pp. 1-6, doi: 10.1109/eGRID62045.2024.10842930.

K. -H. Kim, S. Cui and J. -J. Jung, "A Novel Voltage based Synchronization Method for Maximum Power Factor Injection of Grid-Tied Converter in Extremely Weak Grid," 2024 9th IEEE Workshop on the Electronic Grid (eGRID), Santa Fe, NM, USA, 2024, pp. 1-5, doi: 10.1109/eGRID62045.2024.10842776.

J. Lee, J. Yun, H. Kim and S. Cui, "High-Fidelity FEA-Based Circuit Simulation for Multi-Active Bridge Converter," 2024 IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, USA, 2024, pp. 3765-3770, doi: 10.1109/ECCE55643.2024.10861206.

G. Park, H. Kim and S. Cui, "Optimization of Transformer Design Parameters of a 20kW SiC-Based Dual-Active Bridge Converter for Enhanced Efficiency," 2024 IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, USA, 2024, pp. 3034-3039, doi: 10.1109/ECCE55643.2024.10861215.

S. Ko, S. Cui, and S.-K. Sul, “Instantaneous Optimal Zero-Sequence Voltage Injection of Modular Multilevel Converter for Maximum Output Voltage Synthesis”, 2024 IEEE International Power Electronics and Motion Control Conference (IPEMC 2024 - ECCE Asia) , Chengdu, China, 2024, doi : 10.1109/IPEMC-ECCEAsia60879.2024.10567192

D. Kim, S.-K. Sul, and S. Cui, “Indirect-Modulated MMC Current Control with Voltage Disturbance Estimation and Compensation”, 2024 IEEE International Power Electronics and Motion Control Conference (IPEMC 2024 - ECCE Asia) , Chengdu, China, 2024, doi : 10.1109/IPEMC-ECCEAsia60879.2024.10567926

Y. Kim, S. Cui and J. -J. Jung, "Balancing Control of Cluster Energy in Star-Connected Multilevel Power Conversion System Using Zigzag Transformer," 2024 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2024, pp. 1434-1440, doi: 10.1109/APEC48139.2024.10509341

J. Maeng, and S. Cui, “Enhanced Fault Ride-Through of Grid-Forming Converter with Extra Internal Voltage Source Rotation”, 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) , Long Beach, CA, USA, 2024, doi : 10.1109/APEC48139.2024.10509523 

G. Park, J. Park, S. Cui, and S.-K. Sul, “Nonlinear Optimization-Based Power-Voltage Control of Grid-Connected Converter in Weak Grid”, 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) , Long Beach, CA, USA, 2024, doi: 10.1109/APEC48139.2024.10509166 

J. Yun, S. Cui, and S.-K. Sul, “Generalized Instantaneous Dual Flux Control for Three-Phase Dual-Active Bridge Converter”, 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) , Long Beach, CA, USA, 2024, doi: 10.1109/APEC48139.2024.10509056 

J. Ham, H. Kim, J. Maeng, and S. Cui, “Vector Control of AC Motor in Six-Step Operation Based on Variable DC-Link Voltage”, 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) , Long Beach, CA, USA, 2024, doi: 10.1109/APEC48139.2024.10509231 

I. Hwang, J. Lee, and S. Cui, “Grid Voltage Sensorless Control of 3.2kW Bridgeless Totem-Pole PFC Converter with Pre-estimation and Seamless Mode-Transition”, 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) , Long Beach, CA, USA, 2024, doi: 10.1109/APEC48139.2024.10509019

J. -M. Kim, S. Cui and J. -J. Jung, "A Star-Connected Multilevel Converter with Zigzag Transformer for E-STATCOM," 2024 Energy Conversion Congress & Expo Europe (ECCE Europe), Darmstadt, Germany, 2024, pp. 1-6, doi: 10.1109/ECCEEurope62508.2024.10751832

S. Kim, K. -H. Kim, S. Cui and J. -J. Jung, "Enhancement Methods for Transient Stability of Grid-Forming Converters with Low Damping," 2024 Energy Conversion Congress & Expo Europe (ECCE Europe), Darmstadt, Germany, 2024, pp. 1-7, doi: 10.1109/ECCEEurope62508.2024.10751947.

2023

J. Yun, S. Cui and S. -K. Sul, "Instantaneous Dual Flux Control for Three-Phase Dual-Active Bridge," 2023 IEEE Energy Conversion Congress and Exposition (ECCE), Nashville, TN, USA, 2023, pp. 2747-2751, doi: 10.1109/ECCE53617.2023.10361971.

I. Hwang, J. Lee and S. Cui, "Time-Step-Adaptive-Bilinear (TSAB) Second-Order Digital Filter Design for Variable Sampling Frequency Control of Power Converter," 2023 IEEE Energy Conversion Congress and Exposition (ECCE), Nashville, TN, USA, 2023, pp. 6571-6573, doi: 10.1109/ECCE53617.2023.10362719. 

J. Hu, S. Cui and Y. He, "Universal Flux Balancing Control to Suppress Transient DC-Bias of Phase-Shift Modulated Multi-Active-Bridge Converters," 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), Jeju Island, Korea, Republic of, 2023, pp. 1898-1905, doi: 10.23919/ICPE2023-ECCEAsia54778.2023.10213677. 

S. -Y. Lee, S. Cui and J. -J. Jung, "Enhanced Voltage Injection Control for Capacitor Voltage Balancing of MMC Under Low-Frequency Operation," 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), Jeju Island, Korea, Republic of, 2023, pp. 2643-2648, doi: 10.23919/ICPE2023-ECCEAsia54778.2023.10213656. 

G. S. Song, S. Cui and J. -J. Jung, "Split Capacitor Ripple Reduction Method of 3-Level NPC Converter Using Zigzag Transformer," 2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), Jeju Island, Korea, Republic of, 2023, pp. 1906-1911, doi: 10.23919/ICPE2023-ECCEAsia54778.2023.10213597. 

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, doi: 10.1109/ECCE50734.2022.9947839. 

2021

Y. -R. Kim, S. -Y. Lee, S. Cui and J. -J. Jung, "Improvement of DC Voltage Control Dynamics with Bipolar DC Circuits Using a Zigzag Transformer," 2021 24th International Conference on Electrical Machines and Systems (ICEMS), Gyeongju, Korea, Republic of, 2021, pp. 2060-2064, doi: 10.23919/ICEMS52562.2021.9634640. 

S. Zhao, S. Cui, J. Hu and Y. Chen, "Bipolar Operation Scheme of Modular Multilevel DC-DC Converter (MMDC) for Resilient MVDC Distribution Systems," 2021 IEEE 1st International Power Electronics and Application Symposium (PEAS), Shanghai, China, 2021, pp. 1-7, doi: 10.1109/PEAS53589.2021.9628426. 

S. Cui, J. Hu and S. Zhao, "Enhanced Dual-Active Bridge Converter with Inherent Bipolar Operation Capability for LVDC Distribution Systems," 2021 IEEE 1st International Power Electronics and Application Symposium (PEAS), Shanghai, China, 2021, pp. 1-6, doi: 10.1109/PEAS53589.2021.9628858. 

M. Jia, S. Cui, P. Joebges and R. W. D. Doncker, "A Modular Multilevel Converter as a Grid Emulator in Balanced and Unbalanced Scenarios Using a Delta-Wye Transformer," 2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021, pp. 2950-2957, doi: 10.1109/ECCE47101.2021.9595175. 

M. Jia, S. Cui, K. Hetzenecker, J. Hu and R. W. De Doncker, "Control of a Three-Phase Four-Wire Modular Multilevel Converter as a Grid Emulator in Fault Scenarios," 2021 IEEE Energy Conversion Congress and Exposition (ECCE), Vancouver, BC, Canada, 2021, pp. 624-631, doi: 10.1109/ECCE47101.2021.9595592. 

2020

S. Cui, J. Hu and R. W. De Doncker, "Monopole Operation of On-Load Faulty Valves Replacement of Modular Multilevel Converters (MMCs) in Bipolar MVDC Grids," 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), 2020, pp. 888-891, doi: 10.1109/IPEMC-ECCEAsia48364.2020.9367904.

J. Hu, Z. Quan, S. Cui, Y. Li and R. W. De Doncker, "Modular Triple-Active Bridge DC-DC Converters for Utility-Scale Photovoltaics-Plus-Battery Storage Systems Connected to MVDC Grids," 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia), Nanjing, China, 2020, pp. 880-887, doi: 10.1109/IPEMC-ECCEAsia48364.2020.9368139. 

Z. Yang, C. Shah, J. Teichrib, S. Cui and R. W. De Doncker, "Passivity-Based Virtual Damping Control of Three-Phase Grid-Tied PV Inverters," 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL), Aalborg, Denmark, 2020, pp. 1-8, doi: 10.1109/COMPEL49091.2020.9265827. 

2019

S. Cui, J. Hu and R. W. De Doncker, "Onshore AC Grid Low Voltage Ride-Through (LVRT) of Diode-Rectifier Units based HVDC Transmission Systems for Offshore Wind Farms," 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2019, pp. 934-938, doi: 10.1109/PEDG.2019.8807512.

J. Hu, Y. Zhang, S. Cui, P. Joebges and R. W. De Doncker, "A Partial-Power Regulated Hybrid Modular DC-DC Converter to Interconnect MVDC and LVDC Grids," 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Xi'an, China, 2019, pp. 1030-1035, doi: 10.1109/PEDG.2019.8807702. 

2018

S. Cui, J. Hu, M. Stieneker and R. W. De Doncker, "An Isolated Soft-Switching Hybrid-Source DC-DC Converter for DC Offshore Wind Farms," 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), 2018, pp. 2484-2489, doi: 10.23919/IPEC.2018.8507553.

J. Hu, Z. An, S. Cui, N. R. Averous and R. W. De Doncker, "Impedance Modeling and Stability Analysis of Dual-Active Bridge Converter Interfacing DC Grids," 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, OR, USA, 2018, pp. 4907-4914, doi: 10.1109/ECCE.2018.8557791. 

J. Hu, S. Cui and R. W. De Doncker, "DC Fault Ride-Through of a Three-Phase Dual-Active Bridge Converter for DC Grids," 2018 International Power Electronics Conference (IPEC-Niigata 2018 -ECCE Asia), Niigata, Japan, 2018, pp. 2250-2256, doi: 10.23919/IPEC.2018.8507672. 

2017

S. Cui, N. Soltau and R. W. De Doncker, "Dynamic performance and fault-tolerant capability of a TLC-MMC hybrid DC-DC converter for interconnection of MVDC and HVDC grids," 2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017, pp. 1622-1628, doi: 10.1109/ECCE.2017.8095986.

2016

S. Cui, N. Soltau and R. W. De Doncker, "A high step-up ratio soft-switching DC-DC converter for interconnection of MVDC and HVDC grids," 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, USA, 2016, pp. 1-8, doi: 10.1109/ECCE.2016.7854698. 

J. -J. Jung, S. Cui and S. -K. Sul, "A new topology of multilevel VSC converter for hybrid HVDC transmission system," 2016 IEEE Applied Power Electronics Conference and Exposition (APEC), Long Beach, CA, USA, 2016, pp. 2620-2628, doi: 10.1109/APEC.2016.7468234. 

2015

S. Cui, H. Lee, J. Jung, Y. Lee and S. Sul, "A comprehensive AC side single line to ground fault ride through strategy of a modular multilevel converter for HVDC system," 2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015, pp. 5378-5385, doi: 10.1109/ECCE.2015.7310416.

Shenghui Cui, Jae-Jung Jung, Younggi Lee and Seung-Ki Sul, "A novel control strategy of a modular multilevel converter (MMC) based VSC-HVDC transmission system," 2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 2015, pp. 972-979, doi: 10.1109/APEC.2015.7104467.

S. Cui, J. -J. Jung, Y. Lee and S. -K. Sul, "Principles and dynamics of natural arm capacitor voltage balancing of a direct modulated modular multilevel converter," 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015, pp. 259-267, doi: 10.1109/ICPE.2015.7167796.

J. -J. Jung, S. Cui, Y. Lee and S. -K. Sul, "A cell capacitor energy balancing control of MMC-HVDC under the AC grid faults," 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), Seoul, Korea (South), 2015, pp. 1-8, doi: 10.1109/ICPE.2015.7167758.

2014

S. Cui, S. Kim, J. -J. Jung and S. -K. Sul, "A comprehensive cell capacitor energy control strategy of a modular multilevel converter (MMC) without a stiff DC bus voltage source," 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, 2014, pp. 602-609, doi: 10.1109/APEC.2014.6803370.

S. Cui, S. Kim, J. -J. Jung and S. -K. Sul, "Principle, control and comparison of modular multilevel converters (MMCs) with DC short circuit fault ride-through capability," 2014 IEEE Applied Power Electronics Conference and Exposition - APEC 2014, 2014, pp. 610-616, doi: 10.1109/APEC.2014.6803371.

Y. Lee, S. Cui, S. Kim and S. -K. Sul, "Control of hybrid HVDC transmission system with LCC and FB-MMC," 2014 IEEE Energy Conversion Congress and Exposition (ECCE), Pittsburgh, PA, USA, 2014, pp. 475-482, doi: 10.1109/ECCE.2014.6953432. 

S. Kim, S. Cui and S. -K. Sul, "Modular multilevel converter based on full bridge cells for Multi-Terminal DC transmission," 2014 16th European Conference on Power Electronics and Applications, Lappeenranta, Finland, 2014, pp. 1-10, doi: 10.1109/EPE.2014.6910868.

2012

S. Cui, D. He, Z. Chen and T. G. Habetler, "A wide input voltage range ZVS isolated bidirectional DC-DC converter for ultra-capacitor application in hybrid and electric vehicles," 2012 IEEE International Electric Vehicle Conference, 2012, pp. 1-6, doi: 10.1109/IEVC.2012.6183239.

Shenghui Cui, Dawei He, Mingxuan Li, Haifeng Lu and T. G. Habetler, "Design of a dual half bridge DC-DC converter for an ultra-capacitor based auxiliary power source in electric vehicles," 2012 IEEE Transportation Electrification Conference and Expo (ITEC), 2012, pp. 1-7, doi: 10.1109/ITEC.2012.6243490.