| 分组动态自调整的MMC电容电压平衡策略及其在船舶中压直流系统的应用 |
| |
| 引用本文： | 赵燃,郭燚,赵怡波.分组动态自调整的MMC电容电压平衡策略及其在船舶中压直流系统的应用[J].上海海事大学学报,2020,41(2):78-84. |
| |
| 作者姓名： | 赵燃 郭燚 赵怡波 |
| |
| 作者单位： | 上海海事大学物流工程学院,上海 201306;上海海事大学物流工程学院,上海 201306;上海海事大学物流工程学院,上海 201306 |
| |
| 摘 要： | 为解决传统基于排序法的模块化多电平变换器(modular multilevel converter,MMC)电容电压平衡策略计算时间长、子模块分配效率低等问题,研究一种分组动态自调整的MMC电容电压平衡策略。根据各组子模块电容电压波动范围以及电流方向,该策略能实时向各组分配不同数量的子模块,且能显著地降低由排序带来的计算量。经仿真验证,对比子模块不分组或平均分组的情形,所研究的策略既能快速运行,又能保持组间和组内子模块电容电压的稳定,能进一步提升船舶中压直流(medium voltage direct current, MVDC)系统的整体效率。
|
| 关 键 词： | 电容电压平衡策略 模块化多电平变换器(MMC) 分组动态自调整 中压直流(MVDC) |
| 收稿时间： | 2019/6/13 0:00:00 |
| 修稿时间： | 2019/9/6 0:00:00 |
Group dynamic self-tuning MMC capacitor voltage balancing strategy and its application in ship MVDC system |
| |
| zhaoran,guoyi and zhaoyibo.Group dynamic self-tuning MMC capacitor voltage balancing strategy and its application in ship MVDC system[J].Journal of Shanghai Maritime University,2020,41(2):78-84. |
| |
| Authors: | zhaoran guoyi and zhaoyibo |
| |
| Institution: | Shanghai Maritime University,Shanghai Maritime University and Shanghai Maritime University |
| |
| Abstract: | To overcome long calculation time, low allocation efficiency of sub modules and other problems for the classical sorting based MMC (modular multilevel converter) capacitor voltage balancing strategy, a group dynamic self tuning MMC capacitor voltage balancing strategy is studied. According to the voltage flucturate range and current direction of sub module capacitors in each group, this strategy can assign different number of sub modules to each group in real time, and significantly reduces the amount of computation caused by sorting. It is proved by simulations that: compared with non grouping or average grouping situations for sub modules, the studied strategy is of not only rapid operation but also the stability of the capacitor voltage of sub modules among groups and in a group, which can further improve the overall efficiency of the ship medium voltage direct current (MVDC) system. |
| |
| Keywords: | Capacitor voltage balancing strategy Modular multilevel converter (MMC) Group dynamic self-tuning Ship medium voltage DC power system (Ship MVDC) |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《上海海事大学学报》浏览原始摘要信息 |
| 点击此处可从《上海海事大学学报》下载免费的PDF全文 |
