Publications

International Conferences

2024

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

2023

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.

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. 

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.