skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fundamental-Frequency Reactive Circulating Current Injection for Capacitor Voltage Balancing in Hybrid-MMC HVDC Systems During Riding Through PTG Faults

Abstract

Here, this article presents a comprehensive analysis and a novel solution for the discharge problem on the half-bridge submodules' (HBSMs') capacitors in the hybrid modular multilevel converter (MMC)-based high-voltage direct current transmission systems under a long-term (e.g., several minutes or longer) pole-to-ground fault condition. The mechanism of this issue is analyzed, and then a solution based on fundamental-frequency reactive circulating current (FFRCC) injection is proposed. The influence of FFRCC injection is analyzed in terms of the fluctuated arm capacitor energy and the current stress of semiconductors. Moreover, an enhanced arm voltage modulation method based on HBSMs and full-bridge submodules coordinate control is proposed to accelerate the capacitor voltage balance of HBSMs. Finally, the performance of the proposed control strategy is verified by the simulation results.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2];  [3]
  1. Huazhong Univ. of Science and Technology, Wuhan (China). School of Electrical and Electronic Engineering
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Power Electronics and Electric Machine Group
  3. Global Energy Interconnection Research Inst., Beijing (China)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1474569
Grant/Contract Number:  
[AC05-00OR22725; 2014CB247400]
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Transactions on Power Delivery
Additional Journal Information:
[ Journal Volume: 33; Journal Issue: 3]; Journal ID: ISSN 0885-8977
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats

Lu, Maozeng, Hu, Jiabing, Zeng, Rong, and He, Zhiyuan. Fundamental-Frequency Reactive Circulating Current Injection for Capacitor Voltage Balancing in Hybrid-MMC HVDC Systems During Riding Through PTG Faults. United States: N. p., 2017. Web. doi:10.1109/TPWRD.2017.2755505.
Lu, Maozeng, Hu, Jiabing, Zeng, Rong, & He, Zhiyuan. Fundamental-Frequency Reactive Circulating Current Injection for Capacitor Voltage Balancing in Hybrid-MMC HVDC Systems During Riding Through PTG Faults. United States. doi:10.1109/TPWRD.2017.2755505.
Lu, Maozeng, Hu, Jiabing, Zeng, Rong, and He, Zhiyuan. Thu . "Fundamental-Frequency Reactive Circulating Current Injection for Capacitor Voltage Balancing in Hybrid-MMC HVDC Systems During Riding Through PTG Faults". United States. doi:10.1109/TPWRD.2017.2755505. https://www.osti.gov/servlets/purl/1474569.
@article{osti_1474569,
title = {Fundamental-Frequency Reactive Circulating Current Injection for Capacitor Voltage Balancing in Hybrid-MMC HVDC Systems During Riding Through PTG Faults},
author = {Lu, Maozeng and Hu, Jiabing and Zeng, Rong and He, Zhiyuan},
abstractNote = {Here, this article presents a comprehensive analysis and a novel solution for the discharge problem on the half-bridge submodules' (HBSMs') capacitors in the hybrid modular multilevel converter (MMC)-based high-voltage direct current transmission systems under a long-term (e.g., several minutes or longer) pole-to-ground fault condition. The mechanism of this issue is analyzed, and then a solution based on fundamental-frequency reactive circulating current (FFRCC) injection is proposed. The influence of FFRCC injection is analyzed in terms of the fluctuated arm capacitor energy and the current stress of semiconductors. Moreover, an enhanced arm voltage modulation method based on HBSMs and full-bridge submodules coordinate control is proposed to accelerate the capacitor voltage balance of HBSMs. Finally, the performance of the proposed control strategy is verified by the simulation results.},
doi = {10.1109/TPWRD.2017.2755505},
journal = {IEEE Transactions on Power Delivery},
number = [3],
volume = [33],
place = {United States},
year = {2017},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

Save / Share: