Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors

Nan Chen; Kunpeng Zha; Haitao Qu; Fangling Li; Ying Xue; Xiao-Ping Zhang

doi:10.17775/CSEEJPES.2022.01620

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Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors

Regular Papers | 更新时间：2026-10-15

- Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors
- Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors
- 中国电机工程学会电力与能源系统学报(英文) 2022年8卷第6期页码：1708-1719
- 作者机构：
  
  1. Department of Electronic, Electrical and Systems Engineering, School of Engineering, University of Birmingham,Birmingham,UK
  2. EPRI Electric Power Engineering Co. Ltd, Beijing,C,China
  3. School of Electric Power Engineering, South China University of Technology,Guangzhou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.01620
  中图分类号：
- 纸质出版：2022-11-01
- 稿件说明：
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Nan Chen, Kunpeng Zha, Haitao Qu, 等. Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors[J]. 中国电机工程学会电力与能源系统学报(英文), 2022,8(6):1708-1719.

Nan Chen, Kunpeng Zha, Haitao Qu, et al. Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors[J]. CSEE Journal of Power and Energy Systems, 2022, 8(6): 1708-1719.
Nan Chen, Kunpeng Zha, Haitao Qu, 等. Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors[J]. 中国电机工程学会电力与能源系统学报(英文), 2022,8(6):1708-1719. DOI： 10.17775/CSEEJPES.2022.01620.

Nan Chen, Kunpeng Zha, Haitao Qu, et al. Economy Analysis of Flexible LCC-HVDC Systems with Controllable Capacitors[J]. CSEE Journal of Power and Energy Systems, 2022, 8(6): 1708-1719. DOI： 10.17775/CSEEJPES.2022.01620.

摘要

Abstract

Commutation failure (CF) is a frequent dynamic event at inverter of LCC-HVDC systems caused by AC side faults which can lead to inverter blocking

interruption of active power transfer

and even system blackout. To eliminate CFs and improve system performance

new Flexible LCC-HVDC topologies have been proposed in previous research but with limited analysis on its economic performance. Therefore

to further validate the applicability of Flexible LCC-HVDC topologies

this paper utilizes Life-Cycle Cost Analysis model to analyze the life-cycle cost of inverter stations for conventional LCC-HVDC

Capacitor Commutated Converter based HVDC (CCC-HVDC) topology and Flexible LCC-HVDC topologies including Controllable Capacitor based Flexible LCC-HVDC

AC Filterless Controllable Capacitor based Flexible LCC-HVDC and improved Flexible LCC-HVDC. Through a case study based on a 500 kV

1000 MW LCC-HVDC scheme

comparison results show that the AC Filterless Controllable Capacitor based Flexible LCC-HVDC topology and the improved Flexible LCC-HVDC topology have lower cost than the conventional LCC-HVDC and CCC-HVDC topologies

which proves that the elimination of CFs can be achieved with reduced cost.

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