| 单相模块化多电平变流器SVG控制方法研究 |
| |
| 引用本文： | 李凯,郑益慧,姚钢,周荔丹,王昕. 单相模块化多电平变流器SVG控制方法研究[J]. 电测与仪表, 2015, 52(11) |
| |
| 作者姓名： | 李凯 郑益慧 姚钢 周荔丹 王昕 |
| |
| 作者单位： | 1. 上海交通大学电工与电子技术中心,上海,200240
2. 上海交通大学电力传输与功率变换控制教育部重点实验室电气工程系,上海,200240 |
| |
| 摘 要： | 为解决模块化多电平变流器用于需要无功补偿的单相系统时直流侧电压稳定问题,文章首先介绍了单相模块化多电平变流器(Modular multilevel converter,MMC)的工作原理。然后通过对MMC建模,分析了单相MMC内部电压不平衡会造成环流,在此基础上提出了基于环流控制的稳压方法和MMC子模块电容的均压方法。在上述均压和稳压方法下,实现了MMC补偿单相系统的无功功率,并提出了一种基于T/6的虚拟三相法检测单相负载无功电流。最后,通过Matlab/Simulink仿真验证了上述控制方法的有效性。
|
| 关 键 词： | 无功电流检测 直流侧电压平衡 模块化多电平变流器 无功补偿 |
| 收稿时间： | 2014-07-14 |
| 修稿时间： | 2014-07-14 |
Research on Control Method of Signal Phase SVG Based on Modular Multilevel Converter |
| |
| LI Kai,ZHENG Yi-hui,YAO Gang,ZHOU Li-dan and WANG Xin. Research on Control Method of Signal Phase SVG Based on Modular Multilevel Converter[J]. Electrical Measurement & Instrumentation, 2015, 52(11) |
| |
| Authors: | LI Kai ZHENG Yi-hui YAO Gang ZHOU Li-dan WANG Xin |
| |
| Affiliation: | Shanghai Jiao Tong University,Shanghai Jiao Tong University,Shanghai Jiao Tong University,Shanghai Jiao Tong University,Shanghai Jiao Tong University |
| |
| Abstract: | To solve the DC side voltage balancing problem of MMC-SVG under single phase, this paper first explained the operating principles of Modular Multilevel Converter (MMC). By building the math models of MMC, the paper analyzed the reason of generating current which flowed through MMC. Based on that conclusion, this paper proposed a voltage balancing method and a voltage averaging method to maintain the voltage of every capacitor. In addition, the paper presented a faster reactive current detecting method to realize the MMC-STATCOM. Finally, the Matlab/Simulink simulation indicated these control methods are reliable. |
| |
| Keywords: | reactive current detecting DC side voltage balancing MMC SVG |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《电测与仪表》浏览原始摘要信息 |
|
点击此处可从《电测与仪表》下载免费的PDF全文 |
|
