夏春,江俊涛,胡守东,刘沈全,王秀丽
XIA Chun,JIANG Juntao,HU Shoudong,LIU Shenquan,WANG Xiuli

• 1:国家电网公司西南分部
• 2:华南理工大学电力学院
• 3:西安交通大学电力设备电气绝缘国家重点实验室

摘要(Abstract)：

通过在线路两端设置变频装置,利用既有线路构建点对点的双端型分频输电系统,可以提升线路容量和输电效率、降低潮流变化引起的母线电压波动,是缓解城市电网容量不足的有效方法。围绕该场景下柔性分频输电系统M~3C(模块化多电平矩阵变换器)换流站的建模与控制开展研究,建立双αβ0坐标系下M~3C的数学模型,提出基于双环结构的M~3C换流站控制系统总体架构及各个环节的控制策略,以及送端、受端变频站的协同控制方法。最后,通过仿真算例验证了所提控制策略的正确性和有效性。
The point-to-point fractional frequency transmission system(FFTS), with frequency converters equipped on both ends of lines, can boost the transmission capacity of lines and reducing the grid frequency fluctuations due to power flow change, and is an effective solution to capacity insufficiency of the urban power grid. This paper conducts research on modeling and control of the M~3C(modular multilevel matrix converter) station dedicated for point-to-point FFTS application. The mathematical model under double αβ0 frame is established first. Then, the overall framework of M~3C station control system and corresponding control strategy for each part as well as coordination strategy between the sending and receiving frequency converter stations.The Validness and effectiveness of the proposed strategy are verified by simulation examples.

关键词(KeyWords)： 分频输电系统;模块化多电平矩阵变换器;换流站控制系统;新型输配电
fractional frequency transmission system;modular multilevel matrix converter;converter station control system;novel power transmission and distribution

Abstract:

Keywords:

基金项目(Foundation): 电力设备电气绝缘国家重点实验室资助项目（EIPE20209）

作者(Author): 夏春,江俊涛,胡守东,刘沈全,王秀丽
XIA Chun,JIANG Juntao,HU Shoudong,LIU Shenquan,WANG Xiuli

DOI: 10.19585/j.zjdl.202110006

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