TY - GEN
T1 - Comparative Study of High-Frequency Injection Method and HMMC for Suppressing Capacitor Voltage Fluctuation of MMC
AU - Wang, Jingkun
AU - Li, Binbin
AU - Zhou, Shaoze
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2018 KIEE EMECS (KIEE Electrical Machinery and Energy Conversion Systems).
PY - 2018/11/27
Y1 - 2018/11/27
N2 - Modular multilevel converter (MMC) represents an interesting and emerging topology in medium-voltage motor drive applications. The main challenge of using such a topology in variable-speed drives is the large voltage fluctuation of sub module capacitors at low speeds. The most widely used method of suppressing the fluctuation of capacitor voltage is high-frequency injection method. In addition, a novel hybrid modular multilevel converter (HMMC) topology has received extensive attention due to its inherent ability to reduce capacitor voltage fluctuation. In this paper, a comparative study of high-frequency injection method and HMMC in terms of converter loss, current stress and capacitance was conducted. The results show that the use of HMM C topology leads to lower loss and current stress at low frequency. The comparative study will guide the application of MMC in the field of motor drive.
AB - Modular multilevel converter (MMC) represents an interesting and emerging topology in medium-voltage motor drive applications. The main challenge of using such a topology in variable-speed drives is the large voltage fluctuation of sub module capacitors at low speeds. The most widely used method of suppressing the fluctuation of capacitor voltage is high-frequency injection method. In addition, a novel hybrid modular multilevel converter (HMMC) topology has received extensive attention due to its inherent ability to reduce capacitor voltage fluctuation. In this paper, a comparative study of high-frequency injection method and HMMC in terms of converter loss, current stress and capacitance was conducted. The results show that the use of HMM C topology leads to lower loss and current stress at low frequency. The comparative study will guide the application of MMC in the field of motor drive.
KW - Modular multilevel converter
KW - capacitor voltage fluctuation suppression
KW - loss analysis
KW - low frequency operation
UR - https://www.scopus.com/pages/publications/85060054906
U2 - 10.23919/ICEMS.2018.8548973
DO - 10.23919/ICEMS.2018.8548973
M3 - 会议稿件
AN - SCOPUS:85060054906
T3 - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
SP - 1324
EP - 1329
BT - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines and Systems, ICEMS 2018
Y2 - 7 October 2018 through 10 October 2018
ER -