| 引用本文: | 杨文博,宋 强,朱 喆,李建国,许树楷,刘文华.基于直流内电势控制的MMC多端直流输电系统最优下垂控制[J].电力自动化设备,2016,36(10): |
| YANG Wenbo,SONG Qiang,ZHU Zhe,LI Jianguo,XU Shukai,LIU Wenhua.Optimal droop control based on direct DC internal potential control for MMC-MTDC system[J].Electric Power Automation Equipment,2016,36(10): |
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| 摘要: |
| 基于模块化多电平换流器（MMC）的直流内电势直接控制方法提出了一种新型的MMC多端直流输电系统下垂控制策略。该控制策略在直流电压控制站实现直流内电势-直流电流的下垂特性，并在功率控制站实现对直流电流和电容电压的闭环控制。基于对频域响应特性的分析给出了该控制策略的优化控制参数设计方法。仿真证明了所提控制策略的可行性和有效性。 |
| 关键词: 直流输电 模块化多电平换流器 多端直流输电 下垂控制 直流内电势直接控制 |
| DOI： |
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| 基金项目:国家高技术研究发展计划（863计划）资助项目（2011- AA05A102） |
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| Optimal droop control based on direct DC internal potential control for MMC-MTDC system |
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YANG Wenbo1, SONG Qiang1, ZHU Zhe2, LI Jianguo1, XU Shukai2, LIU Wenhua1
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1.State Key Laboratory of Control and Simulation of Power System and Generation Equipment，Tsinghua University， Beijing 100084，China;2.Electric Power System Research Institute of China Southern Grid，Guangzhou 510080，China
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| Abstract: |
| A strategy of droop control based on direct DC internal potential control is proposed for the MMC-MTDC（Modular Multilevel Converter-based Multi-Terminal HVDC） system，which implements the droop characteristics of DC internal potential and DC current in the DC voltage control station while implements the close-loop control of DC current and capacitor voltage in the power control station. The method of optimal parameter design is given based on the analysis of frequency-domain response characteristics. The feasibility and effectiveness of the proposed control strategy are verified by the simulative results. |
| Key words: HVDC power transmission modular multilevel converter multi-terminal DC power transmission droop control direct DC internal potential control |
