基于MMC的轻型高压直流输电系统的建模与控制

郭家虎; 廖其艳

基于MMC的轻型高压直流输电系统的建模与控制

郭家虎^{1, 2},
廖其艳¹

1.
安徽理工大学电气与信息工程学院，安徽淮南232001
2.
上海交通大学风力发电研究中心，上海200240

基金项目:

国家自然科学基金资助项目(50907001)，中国博士后基金资助项目(20090450692)，上海市科技支撑计划项目(09dz1201303)，上海市博士后基金资助项目(09R21414000)

详细信息

中图分类号: TD612
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- 被引次数: 0
出版历程
- 刊出日期: 2011-10-10

Modeling and Control of Light HVDC Transmission System Based on MMC

GUO Jia-hu^{1, 2},
LIAO Qi-yan¹

1.
School of Electrical and Information Engineering of Anhui University of Science and Technology, Huainan 232001, China. 2.Wind Power Research Center of Shanghai Jiaotong University, Shanghai 200240,

摘要

摘要: 针对基于电压源变换器VSC的高压直流HVDC输电系统存在输出电压低次谐波含量多、需要体积庞大的滤波器和变压器、串联器件的动态均压等问题，提出了一种基于模块化多电平变换器MMC的轻型HVDC输电系统的设计方案；根据建立的MMC-HDVC输电系统的数学模型，详细介绍了该系统控制策略的实现。该控制策略从装置级和系统级两个方面控制MMC-HVDC输电系统，分别实现子模块电容电压的平衡控制及系统的功率解耦控制。仿真结果验证了该系统的可行性与有效性。
- 高压直流输电 /
- 模块化多电平变换器 /
- 平衡控制 /
- 功率解耦控制
Abstract: In view of problems of low-order harmonics in output voltage, needing filter and transformer with big volume and dynamic voltage balancing of series components of HVDC transmission system based on VSC, the paper proposed a design scheme of light HVDC transmission system based on MMC. It detailedly introduced implementation of control strategy according to built mathematic model of MMC-HDVC transmission system. The control strategy controls MMC-HDVC transmission system in term of device level and system level, which separately realize balance control of capacitor voltage of submodules and power decoupling control of the system. The simulation result validated feasibility and effectiveness of the system.
- HVDC transmission, MMC, balance control, power decoupling control /