| 模块化多电平变换器三种调制策略及电压平衡控制仿真与对比研究 | |
| 武晓堃 ; 王奎 ; 万磊 ; 郑泽东 ; 李永东 ; WU Xiao-kun ; WANG Kui ; WAN Lei ; ZHENG Ze-dong ; LI Yong-dong | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 模块化多电平变换器 载波层叠调制 最近电平逼近调制 载波移相调制 电容电压平衡 composite insulator silicone rubber hydrophobicity transfer rate plasma jet parameters static contact angle plasma jet energy TM46 |
| 其他题名 | Simulation and comparative study of three modulation strategies and voltage balance control in modular multilevel converter |
| 中文摘要 | 模块化多电平变换器作为一种新型的多电平拓扑,因为适用于电压源换流型直流输电场合而得到了广泛研究。本文介绍了模块化多电平变换器的拓扑结构和工作原理,并对常用于模块化多电平变换器拓扑的载波移相、最近电平逼近和载波层叠调制策略以及相应的电容电压平衡算法进行了分析,并在PSCAD/EMTDC下搭建了31电平的模块化多电平变换器仿真模型,分别实现了三种调制策略及其电容电压平衡算法,比较了不同调制策略在电压谐波、电容电压平衡、开关频率等方面的表现,并给出了不同调制策略的特点。; As a novel multilevel topology,the modular multilevel converter( MMC) has been widely studied because of its application in HVDC. In this paper,the commonly used modulation strategies in MMC,carrier stacked PWM,nearest level modulation,and carrier phase shifted PWM are introduced. To balance the capacitor voltage of sub-module,several different capacitor voltage balancing algorithms are also analyzed. The carrier stacked PWM has the highest switch frequency which leads to the best capacitor voltage balancing performance. The nearest level modulation is easy to implement and the switching frequency can be restricted to a low rate. The carrier phase shifted PWM has a fixed switching frequency. To compare the three modulation strategies,a 31-level simulation model of MMC is built in PSCAD / EMTDC. The three modulation strategies and capacitor voltage balancing algorithm are realized in the simulation model. The performance of the capacitor voltage fluctuation,switching frequency,voltage harmonics and other aspect of performance are compared. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/142650]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 武晓堃,王奎,万磊,等. 模块化多电平变换器三种调制策略及电压平衡控制仿真与对比研究[J],2016, 2016. |
| APA | 武晓堃.,王奎.,万磊.,郑泽东.,李永东.,...&LI Yong-dong.(2016).模块化多电平变换器三种调制策略及电压平衡控制仿真与对比研究.. |
| MLA | 武晓堃,et al."模块化多电平变换器三种调制策略及电压平衡控制仿真与对比研究".(2016). |
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