Hybrid LCC-AAC HVDC transmission system

被引：8
|
作者：
Sun, Pingyang [1 ]
Wickramasinghe, Harith R. [1 ]
Konstantinou, Georgios [1 ]
机构：
[1] UNSW Sydney, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 2021年 / 192卷
基金：
澳大利亚研究理事会;
关键词：
Line-commutated converter (LCC); Voltage source converter (VSC); Alternate arm converter (AAC); Modular multilevel converter (MMC); Hybrid HVDC; ALTERNATE ARM CONVERTER; TECHNOLOGY; DESIGN;
D O I：
10.1016/j.epsr.2020.106910
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A hybrid HVDC transmission system based on a line-commutated converter (LCC) and an alternate arm converter (AAC) is developed in this article. The basic operation principles and control methods of the proposed LCC-AAC hybrid HVDC system are demonstrated following with appropriate system design and parameter selection. In addition, this paper proposes a set of control schemes for riding through ac faults and handling dc fault. The operation and performance of both converters in such a hybrid HVDC configuration are verified through a detailed set of results based on a 3000 MVA LCC-AAC hybrid HVDC system including steady state operation, ac grid harmonics & dc-side ripple analysis, reference tracking (active power change at LCC station, reactive power change at AAC station) and system performance under ac-grid faults without blocking converter at both terminals of the HVDC system. Also, the response of the hybrid system under dc fault presents potential dc fault handling capability compared with the hybrid system based on LCC and modular multilevel converter (MMC) with half-bridge submodules (HBSMs). The hybrid LCC-AAC HVDC transmission system lays preliminary steps for research on complex mixed converter multiterminal dc configurations in future dc super grids.
引用
收藏
页数：13
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