Jun-Hyeok Park and Kyo-Beum Lee, "Zero-Sequence Circulating Current Suppression in Multi-paralleled Three-Level NPC Inverters under Unbalanced Operating Conditions," in Proc. CENCON Conf., Oct. 2021. > Paper

Paper

International Conference Jun-Hyeok Park and Kyo-Beum Lee, "Zero-Sequence Circulating Current Suppression in Multi-paralleled Three-Level NPC Inverters under Unbalanced Operating Conditions," in Proc. CENCON Conf., Oct. 2021.

2021

본문

This paper presents methods for suppressing high-frequency (HF-) zero-sequence circulating current (ZSCC) generated by interleaved pulse width

modulation (PWM) and low-frequency (LF-) ZSCC generated by inconsistent circuit parameters or inconsistent reference signals. In medium/high power applications, three-level neutral-point-clamped (NPC) inverters are used in parallel connection to obtain high power rating. In this parallel operation,

interleaved PWM is used to improve the quality of the output current with a small filter inductor. However, ZSCC increases due to the small filter

inductor. The proposed methods for suppression of HF-ZSCC generated by interleaved PWM are alternative phase opposite disposition (APOD) PWM

based on carrier modulation and double-reference PWM (DRPWM) based on reference signal modulation. Additionally, the method that injects an

optimized zero-sequence voltage (ZSV) when LF-ZSCC is generated is added to suppress HF- and LF- ZSCC simultaneously. The ZSCC suppression

performance is proved by the simulation results.

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Paper 목록
번호	년도	논문명
182	2022	International Conference Samer Saleh Hakami and Kyo-Beum Lee, "Modified Predictive Torque Control for Balancing Three-Level NPC Inverter-fed Permanent Magnet Synchronous Motor," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 854-858.
181	2022	International Conference Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "Fault Diagnosis and Tolerance for Open-circuit Faults in Multi-Level Inverters," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 849-853.
180	2022	International Conference Jun-Hyeok Park, Hye-Won Choi, and Kyo-Beum Lee, "Analysis and Suppression of Zero-Sequence Circulating Current in Parallel Three-Level Inverters using Improved Interleaved DPWM," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 845-848.
179	2022	International Conference Sung-Jin Jang, Jun-Ho Hwang, Hyung-Woo Lee, and Kyo-Beum Lee, "Zero-Sequence Current Control for Open-End Winding IPMSM Fed by Dual Inverter with a Common Source," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 841-844.
178	2021	International Conference Ha-Rang Jo, Youngjong Ko, and Kyo-Beum Lee, "Influence of Open Switch Failure on Normal Devices in HANPC Inverters," in Proc. ICEMS., Nov. 2021.
177	2021	International Conference Ha-Rang Jo, Youngjong Ko, and Kyo-Beum Lee, "Influence of Open Switch Failure on Control and Thermal Performance of CHB Converters," in Proc. ICEMS., Nov. 2021.
176	2021	International Conference Samer Saleh Hakami and Kyo-Beum Lee, "Modified Direct Torque Control for Fast Dynamics PMSM Drives fed by Three-Level NPC Inverter," in Proc. ICEMS Conf., Nov. 2021.
175	2021	International Conference Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "An Improved Space Vector Modulation for Short-Circuit Fault-Tolerance in Multi-Level Hybrid-ANPC," in Proc. ICEMS Conf., Nov. 2021.
열람중	2021	International Conference Jun-Hyeok Park and Kyo-Beum Lee, "Zero-Sequence Circulating Current Suppression in Multi-paralleled Three-Level NPC Inverters under Unbalanced Operating Conditions," in Proc. CENCON Conf., Oct. 2021.
173	2021	International Conference Ha-Rang Jo, Youngjong Ko, and Kyo-Beum Lee, "Open Fault Tolerant Method Using DPWM for Reducing Switching Loss in Three-Level Hybrid ANPC Inverter," in Proc. CENCON Conf., Oct. 2021.
172	2021	International Conference Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "Open Circuit Fault Diagnosis for Multi-Level Inverters Using An Improved Current Distortion Method," in Proc. CENCON Conf., Oct. 2021.
171	2021	International Conference Jee-Yoon Cha, Byung-Moon Han, and Kyo-Beum Lee, "Thyristor-based Bidirectional Hybrid DC Circuit Breaker to Protect Medium-Voltage DC Systems," in Proc. APAP Conf., Oct. 2021.
170	2021	International Conference Sun-Hang Lee, Sungjoon Cho, and Kyo-Beum Lee, "Priority Selection of Advanced Grid-support Functions in Smart Inverters Considering Voltage Fluctuations at Point of Common Coupling," in Proc. APAP Conf., Oct. 2021.
169	2021	International Conference Hye-Won Choi, Sungjoon Cho, and Kyo-Beum Lee, "Circulating Current Reduction in a Parallel Connected-Inverter for Distributed Generation Systems," in Proc. APAP Conf., Oct. 2021.
168	2020	International Conference Eui-Jae Lee and Kyo-Beum Lee, "Modulation Methods based on Phase-Shifted PWM for H-Bridge Multilevel Inverters," in Proc. WoW Conf., Nov. 2020.

Paper 목록

번호

년도

논문명

182

2022

International Conference

Samer Saleh Hakami and Kyo-Beum Lee, "Modified Predictive Torque Control for Balancing Three-Level NPC Inverter-fed Permanent Magnet Synchronous Motor," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 854-858.

181

2022

International Conference

Laith M. Halabi, Ibrahim Mohd Alsofyani, and Kyo-Beum Lee, "Fault Diagnosis and Tolerance for Open-circuit Faults in Multi-Level Inverters," in Proc. IPEC (ECCE-Asia) Conf., May 2022, pp. 849-853.