Architecture of Nan'ao multi-terminal VSC-HVDC system and its multi-functional control
Architecture of Nan'ao multi-terminal VSC-HVDC system and its multi-functional control
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DOI：
10.17775/cseejpes.2015.00002
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发表时间：
2015-05
影响因子：
7.1
通讯作者：
H. Rao
中科院分区：
文献类型：
--
作者：
H. Rao
本文提出了一种多端高压直流输电系统的结构及其多功能控制策略。该框架具有直流电网的基本特征，适合于集成分布式电源。本文提出了第一个架构的多端高压直流输电系统使用VSC技术。它的控制策略提供了各种功能，包括操作模式，启动和关闭，直流电压和站在线重新连接的控制，这是显着不同于点对点VSC-HVDC系统的控制。该框架不仅在实时仿真研究中进行了评估，而且还首次通过中国南方电网的南澳多端VSC-HVDC（VSC-MTDC）项目进行了现场实施。本文简要介绍了该领域的研究现状和工程成果，包括VSC-MTDC系统的体系结构、控制保护系统的结构、仿真验证试验设置、实时半实物仿真研究和现场试验结果等四个方面。
This paper presents a framework of a multi-terminal HVDC transmission system and its multi-functional control strategy. The framework possesses the basic characteristics of the DC-grid and is suitable in integrating distributed power sources. The paper proposes the first architecture for a multiterminal HVDC transmission system using the VSC technology. Its control strategy offers various functionalities that include controls for operation mode, start-up and shutdown, DC voltage, and station online re-connecting, which are significantly different from the control of point-to-point VSC-HVDC systems. The framework has not only been evaluated in real-time simulation studies, but has also been implemented onsite for the first time via the China Southern Grid's Nan'ao Multi-terminal VSC-HVDC (VSC-MTDC) project. This paper gives a brief review of the current research and engineering achievements in this field, which includes four aspects: the architecture of the VSC-MTDC system, the structure of the control and protection system, simulation verification tests setting, and the results of real-time hardware in hardware in loop (HIL) simulation studies and onsite tests.