Energy System Control and Operation (ESCO) Laboratory
Optimization of Iron and Steel Manufacturing Plant Considering Electricity Price Tariff and Electric Arc Furnace Control
Author: Seok-Young Lee, Gyu-Sub Lee*, Seung-Il Moon, and Yong-Tae Yoon
Year/Month: 10/2023
Source: IET Generation, Transmission, and Distribution, pp. 1-14
Bus Impedance Matrix Estimation Using Non-PMU Measurements
Author: Jae-Won Chang, Gyu-Sub Lee*, and Seaseung Oh
Year/Month: 03/2023
Source: IEEE Transactions on Power Systems, vol. 38, no. 2, pp. 1743-1746
A New Communication-free Grid Frequency and AC Voltage Control of Hybrid LCC-VSC-HVDC Systems for Offshore Wind Farm Integration
Author: Gyu-Sub Lee, Do-Hoon Kwon, Yong-Kyu Kim, and Seung-Il Moon
Year/Month: 03/2023
Source: IEEE Transactions on Power Systems, vol. 38, no. 2, pp. 1309-1321
Distributed Optimal Power Sharing Strategy in an Islanded Hybrid AC/DC Microgrid to Improve Efficiency
Author: Jae-Won Chang, Suyong Chae, and Gyu-Sub Lee*
Year/Month: 02/2023
Source: IEEE Transactions on Power Delivery, vol. 38, no. 1, pp. 724-737
Evaluation for Maximum Allowable Capacity of Renewable Energy Source Considering AC System Strength Measures
Author: Yong-Kyu Kim, Gyu-Sub Lee*, Jong-Su Yoon, and Seung-Il Moon
Year/Month: 04/2022
Source: IEEE Transactions on Sustainable Energy, vol. 13, no. 2, pp. 1123-1134
An Improved AC System Strength Measure for Evaluation of Power Stability and Temporary Overvoltage in Hybrid Multi-infeed HVDC Systems
Author: Yong-Kyu Kim, Gyu-Sub Lee*, Chan-Ki Kim, and Seung-Il Moon
Year/Month: 02/2022
Source: IEEE Transactions on Power Delivery, vol. 37, no. 1, pp. 638-649
A Novel Distributed Control Method for Interlinking Converters in an Islanded Hybrid AC/DC Microgrid
Author: Jae-Won Chang, Gyu-Sub Lee, Pyeong-Ik Hwang, and Seung-Il Moon
Year/Month: 09/2021
Source: IEEE Transactions on Smart Grid, vol. 12, no. 5, pp. 3765-3779
Reactive Power Control of Hybrid Multi-terminal HVDC Systems Considering the Interaction Between the AC Network and Multiple LCCs
Author: Gyu-Sub Lee, Pyeong-Ik Hwang, and Seung-Il Moon
Year/Month: 09/2021
Source: IEEE Transactions on Power Systems, vol. 36, no. 5, pp. 4562-4574
DC Current and Voltage Droop Control Method of Hybrid HVDC Systems for an Offshore Wind Farm Connection to Enhance AC Voltage Stability
Author: Gyu-Sub Lee, Do-Hoon Kwon, and Seung-Il Moon
Year/Month: 03/2021
Source: IEEE Transactions on Energy Conversion, vol. 36, no. 1, pp. 468-479
Solution to Fault of Multi-terminal DC Transmission Systems based on High Temperature Superconducting DC Cables
Author: Chun-Kwon Lee, Gyu-Sub Lee, and Seung-Jin Chang
Year/Month: 02/2021
Source: Energies, vol. 14, no. 1292
Voltage-sensitivity-approach-based Adaptive Droop Control Strategy of Hybrid STATCOM
Author: Seong-Yoon Song, Chang-Hee Han, Gyu-Sub Lee, R. McCann, and Gil-Soo Jang
Year/Month: 01/2021
Source: IEEE Transactions on Power Systems, vol. 36, no. 1, pp. 389-401
Loss Minimization of Electrified Railway Traction Systems Using SVC Based on Particle Swarm Optimization
Author: Gyu-Sub Lee, Byeong-Gon Lee, Pyeong-Ik Hwang, and Seung-Il Moon
Year/Month: 12/2020
Source: IEEE Access, vol. 8, pp. 219680-219689
Method for Determining the Droop Coefficients of Hybrid Multi-terminal HVDC Systems to Suppress AC Voltage Fluctuations
Author: Gyu-Sub Lee, Do-Hoon Kwon, and Seung-Il Moon
Year/Month: 11/2020
Source: IEEE Transactions on Power Systems, vol. 35, no. 6, pp. 4944-4947
A Coordinated Control Strategy of LCC HVDC Systems for Frequency Support with Suppression of AC Voltage Fluctuations
Author: Gyu-Sub Lee, Do-Hoon Kwon, Seung-Il Moon, and Pyeong-Ik Hwang
Year/Month: 07/2020
Source: IEEE Transactions on Power Systems, vol. 35, no. 4, pp. 2804-2815
A New Local Control Method of Interlinking Converters to Improve Global Power Sharing in an Islanded Hybrid AC/DC Microgrid
Author: Jae-Won Chang, Seung-Il Moon, Gyu-Sub Lee, and Pyeong-Il Hwang
Year/Month: 06/2020
Source: IEEE Transactions on Energy Conversion, vol. 35, no. 6, pp. 1014-1025
Reactive Power Control Method for the LCC Rectifier Side of a Hybrid HVDC System Exploiting DC Voltage Adjustment and Switched Shunt Device Control
Author: Gyu-Sub Lee, Do-Hoon Kwon, Seung-Il Moon, and Pyeong-Ik Hwang
Year/Month: 06/2020
Source: IEEE Transactions on Power Delivery, vol. 35, no. 3, pp. 1575-1587
Optimal Operation of Critical Peak Pricing for an Energy Retailer Considering Balancing Costs
Author: Hye-Yoon Song, Gyu-Sub Lee*, and Yong-Tae Yoon
Year/Month: 12/2019
Source: Energies, vol. 12, no. 4658
Coordinated Frequency and State-of-Charge Control with Multi-Battery Energy Storage Systems and Diesel Generators in an Isolated Microgrid
Author: Jae-Won Chang, Gyu-Sub Lee*, Hyeon-Jin Moon, Mark. B. Glick, and Seung-Il Moon
Year/Month: 04/2019
Source: Energies, vol. 12, no. 1614
A Frequency-Power Droop Coefficient Determination Method of Mixed Line-Commutated and Voltage Sourced Converter Multi-Infeed, High-voltage, Direct Current Systems: An Actual Case Study in Korea
Author: Gyu-Sub Lee, Pyeong-Ik Hwang, and Seung-Il Moon
Year/Month: 02/2019
Source: Applied Sciences, vol. 9, no. 606