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MMC-HVDC启动控制策略研究综述 被引量:10

A Survey of Research on Start-up Control Strategy based on MMC-HVDC
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摘要 在基于模块化多电平换流器(MMC)高压直流输电系统(MMC-HVDC)正常运行之前需对换流器桥臂子模块电容预充电,为了减少预充电阶段产生的电压电流冲击,需对系统的预充电启动策略进行设计。首先分析了MMC的拓扑结构,工作原理和数学模型。然后重点阐述了MMC-HVDC系统的预充电过程,限流电阻的选取原则,单站和双站预充电策略并对其进行总结分析,以此为基础指出了今后关于MMC-HVDC启动控制方面的研究趋势和方向。 Before the normal operation of the modular multi-level converter (MMC) HVDC transmission system (MMC-HVDC), it is necessary to pre-charge the capacitor of the converter arm sub-module, in order to reduce the voltage and current impact generated during the pre-charging phase, the system's pre-charge strategy need to be designed. Firstly, the topological structure, working principle and mathematical model of MMC are analyzed. Then, the pre-charging process of the MMC-HVDC system, the selection principle of the current limiting resistor, the single-station and dual-station pre-charging strategy are concluded and analyzed. Based on this, the research trends and directions of the MMC-HVDC control are pointed out.
作者 马嘉伟 陈卓 MA Jia-wei;CHEN Zhuo(Electrial Engineering College,Guizhou University,Guiyang 550025,China)
出处 《节能技术》 CAS 2018年第5期425-431,共7页 Energy Conservation Technology
基金 国家自然科学基金资助项目(51567005)黔科合平台人才[2017]5788 黔科合LH字[2017]7230
关键词 模块化多电平变换器 高压直流输电 限流电阻 预充电 启动控制 modular multi-level converter HVDC Current limiting resistor pre-charged start-up control
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