Yeongsu Bak and Kyo-Beum Lee, "Development of PCS to utilize differential pressure energy in district heating systems with reduced DC‑link voltage variation," Journal of Power Electronics, vol. 20, no. 4, pp. 1109–1118, Jul. 2020. -SCIE > Paper

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International Journals Yeongsu Bak and Kyo-Beum Lee, "Development of PCS to utilize differential pressure energy in district heating systems with reduced DC‑link voltage variation," Journal of Power Electronics, vol. 20, no. 4, pp. 1109–1118, Jul. 2020. -SCIE

2020

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This paper proposes the development of a power conversion system (PCS) for utilizing differential pressure (DP) energy in district

heating systems with reduced DC-link voltage variation. A differential pressure control valve (DPCV) is usually used to regulate heat

transmission pressure to remote areas in district heating systems. However, a high probability of DPCV malfunction and/or failure

caused by cavitation exists because high-pressure fluids are used in district heating systems. Therefore, in this paper, a PCS for

utilizing DP energy in district heating systems by replacing the DPCV is proposed. Furthermore, PCS DC-link voltage fluctuates when

the hydraulic turbine experiences any sudden changes; and is effectively relieved by using a feed-forward control method. The PCS

effectiveness for utilizing DP energy in district heating systems with reduced DC-link voltage variation is verified by both simulation

and experimental results.

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번호 년도 논문명
208 2020 International Journals
Ibrahim Mohd Alsofyani, Yeongsu Bak, and Kyo-Beum Lee, "Improved Finite Set-Predictive Torque Control of PMSM Fed by Indirect Matrix Converter with Discrete Space Vector Modulation," Electronics, vol. 9, no. 12, pp. 1-17, Dec. 2020. -SCIE
207 2020 International Journals
Sze Sing Lee, Yam P. Siwakoti, Chee Shen Lim, and Kyo-Beum Lee, "An Improved PWM Technique to Achieve Continuous Input Current in Common-Ground Transformerless Boost Inverter," IEEE Transactions on Circuits and Systems II, vol. 67, no. 12, pp. 3133-3136, Dec. 2020. -SCI
206 2020 International Journals
Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Enhanced Performance of Constant Frequency Torque Controller–Based Direct Torque Control of Induction Machines with Increased Torque-Loop Bandwidth," IEEE Transactions on Industrial Electronics, vol. 67, no. 12, pp. 10168-10179, Dec. 2020. -SCI
205 2020 International Journals
Seok-Min Kim, Eui-Jae Lee, June-Seok Lee, and Kyo-Beum Lee, "An Improved Phase-Shifted DPWM Method for Reducing Switching Loss and Thermal Balancing in Cascaded H-Bridge Multilevel Inverter," IEEE Access, vol. 8, pp. 187072-187083, Oct. 2020. -SCIE
204 2020 International Journals
Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "Multiple-Fault-Tolerant Strategy for Three-Phase Hybrid Active Neutral Point Clamped Converters Using Enhanced Space Vector Modulation Technique," IEEE Access, vol. 8, pp. 180113–180123, Oct. 2020. -SCIE
203 2020 International Journals
Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Hybrid 7-Level Boost Active-Neutral-Point-Clamped (H-7L-BANPC) Inverter," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no. 10, pp. 2044–2048, Oct. 2020. -SCI
202 2020 International Journals
Samer Saleh Hakami and Kyo-Beum Lee, "Four-level Hysteresis-Based DTC for Torque Capability Improvement of IPMSM Fed by Three-Level NPC Inverter," Electronics, vol. 9, no. 10, pp. 1–16, Sep. 2020. -SCIE
201 2020 International Journals
Ibrahim Mohd Alsofyani and Kyo-Beum Lee, "Predictive Torque Control Based on Discrete Space Vector Modulation of PMSM without Flux Error-Sign and Voltage-Vector Lookup Table," Electronics, vol. 9, no. 9, pp. 1–15, Sep. 2020. -SCIE
200 2020 International Journals
Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "Open-Circuit Fault Tolerance Method for Three-Level Hybrid Active Neutral Point Clamped Converters," Electronics, vol. 9, no. 9, pp. 1–23, Sep. 2020. -SCIE
199 2020 International Journals
Dae-Hyun Cho, Yeongsu Bak, and Kyo-Beum Lee, "Method of Estimating Initial Rotor Position for IPMSMs Using Subdivided Voltage Vectors Based on Inductance Variation," Journal of Power Electronics, vol. 20, no. 5, pp. 1195–1205, Sep. 2020. -SCIE
198 2020 International Journals
Hye-Won Choi, Seok-Min Kim, Jinwoo Kim, Younghoon Cho, and Kyo-Beum Lee, "Deadbeat Predictive Direct Power Control of Interleaved Buck Converter-Based Fast Battery Chargers for Electric Vehicles," Journal of Power Electronics, vol. 20, no. 5, pp. 1162–1171, Sep. 2020. -SCIE
197 2020 International Journals
Sang-Hun Kim, Seok-Min Kim, Sungmin Park, and Kyo-Beum Lee, "Switch Open-Fault Detection for a Three-Phase Hybrid Active Neutral-Point-Clamped Rectifier," Electronics, vol. 9, no. 1437, pp. 1–21, Sep. 2020. -SCIE
196 2020 International Journals
Sze Sing Lee, Chee Shen Lim, Yam P. Siwakoti, and Kyo-Beum Lee, "Dual-T-Type Five-Level Cascaded Multilevel Inverter with Double Voltage Boosting Gain," IEEE Transactions on Power Electronics, vol. 35, no. 9, pp. 9524–9531, Sep. 2020. -SCI
195 2020 International Journals
Ye-Ji Kim, Sang-Hun Kim, Seok-Min Kim, and Kyo-Beum Lee, "Open Fault Diagnosis and Tolerance Control for Grid-Connected Hybrid Active Neutral-Point-Clamped Inverters with Optimized Carrier-Based Pulse Width Modulation," IEEE Access, vol. 8, pp. 145542–145551, Aug. 2020. -SCIE
194 2020 International Journals
Sang-Hun Kim, Dong-Yeon Yoo, Sang-Won An, Ye-Seul Park, Jung-Won Lee, and Kyo-Beum Lee, "Fault Detection Method Using a Convolution Neural Network for Hybrid Active Neutral-Point Clamped Inverters," IEEE Access, vol. 8, pp. 140632–140642, Jul. 2020. -SCIE
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