Power reversal strategies for hybrid LCC/MMC HVDC systems

Gen Li; Ting An; Jun Liang; Wei Liu; Tibin Joseph; Jingjing Lu; Marcio Szechtman; Bjarne R. Andersen; Yuanliang Lan

doi:10.17775/CSEEJPES.2019.01050

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Power reversal strategies for hybrid LCC/MMC HVDC systems

Regular Papers | 更新时间：2025-12-19

- Power reversal strategies for hybrid LCC/MMC HVDC systems
- Power reversal strategies for hybrid LCC/MMC HVDC systems
- 中国电机工程学会电力与能源系统学报(英文) 2020年6卷第1期页码：203-212
- 作者机构：
  
  1. School of Engineering, Cardiff University,Cardiff,UK
  2. Global Energy Interconnection Research Institute,Beijing,China
  3. Eletrobras Cepel, Rio de Janeiro,Brazil
  4. Andersen Power Electronic Solutions, Bexhill--Sea,On,UK
  5. Global Energy Interconnection Research Institute Europe GmbH,Berlin,Germany
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2019.01050
  中图分类号：
- 纸质出版：2020
- 稿件说明：
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Gen Li, Ting An, Jun Liang, 等. Power reversal strategies for hybrid LCC/MMC HVDC systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2020,6(1):203-212.

Gen Li, Ting An, Jun Liang, et al. Power reversal strategies for hybrid LCC/MMC HVDC systems[J]. CSEE Journal of Power and Energy Systems, 2020, 6(1): 203-212.
Gen Li, Ting An, Jun Liang, 等. Power reversal strategies for hybrid LCC/MMC HVDC systems[J]. 中国电机工程学会电力与能源系统学报(英文), 2020,6(1):203-212. DOI： 10.17775/CSEEJPES.2019.01050.

Gen Li, Ting An, Jun Liang, et al. Power reversal strategies for hybrid LCC/MMC HVDC systems[J]. CSEE Journal of Power and Energy Systems, 2020, 6(1): 203-212. DOI： 10.17775/CSEEJPES.2019.01050.

摘要

Abstract

Power reversal control strategies for different types of hybrid line-commutated-converter (LCC)/modular multi-level converter (MMC) based high-voltage direct-current (HVDC) systems have been proposed with the consideration of system configurations and MMC's topologies. The studies show that the full-bridge (FB) MMC gives better performance than halfbridge (HB) MMCs in terms of power reversal in hybrid LCC/MMC systems. The modulation method employed in this paper can achieve a smooth online polarity reversal for hybrid LCC/FB-MMC HVDC systems. Additional DC switches and/or discharging resistors may be needed to reverse the DC polarity of LCC/HB-MMC HVDC systems. Based on the proposed strategies

the power reversal processes of the studied systems can be accomplished within several seconds. The speed can be changed according to system operation requirements. The effectiveness of the proposed control strategies has been verified through simulations conducted in PSCAD/EMTDC.

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