The key technologies of VSC-MTDC and its application in China
The key technologies of VSC-MTDC and its application in China
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VSC-MTDC关键技术及其在我国的应用
DOI：
10.1016/j.rser.2016.04.067
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发表时间：
2016-09
影响因子：
15.9
通讯作者：
Wang Zhixin
中科院分区：
文献类型：
--
作者：
Jiang Binkai;Wang Zhixin
VSC-HVDC（Voltage Source Converter Based High Voltage Direct Current Transmission，基于电压源换流器的高压直流输电）是解决海上风电输电问题的有效方法之一。随着交直流电网的日益复杂，为实现多供电中心、多负荷中心和分布式可再生能源的接入，基于两端高压直流输电技术的多端高压直流输电系统（VSC-MTDC）应运而生。本文综述了MTDC及其在中国的实施情况，重点讨论了VSC-MTDC系统的直流网络拓扑结构和VSC-MTDC的控制策略，包括换流站控制和协调控制。已投运的舟山五端工程换流站控制大多采用双闭环空间矢量控制（DCSVC）策略。针对该方法在电压不平衡情况下的不足，提出了一种改进的双闭环空间矢量控制策略，该控制策略包含正序分量和负序分量。在协调控制方面，提出了主从控制、直流电压下垂控制和直流电压裕度控制。关于MTDC在中国的实施部分，以舟山项目为例进行了详细介绍。本文为大型海上风电场的并网和输电提供了良好的理论基础。
The application of VSC-HVDC (Voltage Source Converter Based High Voltage Direct Current Transmission) is one of the proven solutions to the transmission problems of offshore wind power. As AC and DC networks become more complex, VSC-MTDC (Multi-terminal High Voltage Direct Current Transmission Based on VSC) is developed based on two-terminal HVDC to offer technology support for the accessing among multi-supplier center, multi-loads center and distributed renewable powers. This paper reviews the MTDC and its implementation in China, mainly discusses the topologies of DC network of VSC-MTDC system and the control strategies of VSC-MTDC which includes converter station control and coordinated control. In most cases, double closed-loop space vector control (DCSVC) strategy applied in the Zhoushan project, which includes five-terminals and has been put into operation, is adopted for the converter station control. But the method can not work under the unbalanced voltage situation, thus an improved double closed-loop space vector control strategy, which includes positive and negative sequence components, is proposed in this paper. As for coordinated control, master-slave control, DC voltage droop control and DC voltage margin control are presented. As for the part of implementation of MTDC in China, Zhoushan project is presented in detail. This paper provides good theoretical foundation for the grid integration and the transmission of large offshore wind farms.
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影响因子：
6.7
作者：
Peng Xiao;Keith A. Corzine;G. K. Venayagamoorthy
通讯作者：
Peng Xiao;Keith A. Corzine;G. K. Venayagamoorthy
DOI：
--
发表时间：
2013
期刊：
--
影响因子：
--
作者：
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通讯作者：
Wu Ha
影响因子：
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作者：
Lie Xu;B. Andersen;P. Cartwright
通讯作者：
Lie Xu;B. Andersen;P. Cartwright
影响因子：
6.6
作者：
A. Moawwad;M. E. El Moursi;W. Xiao;J. Kirtley
通讯作者：
A. Moawwad;M. E. El Moursi;W. Xiao;J. Kirtley
DOI：
--
发表时间：
2004
期刊：
Electric power automation equipment
影响因子：
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作者：
Pan Shi-feng
通讯作者：
Pan Shi-feng