| 模块化多电平换流器装置级控制器的设计 |
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| 引用本文： | 谭玉茹,苏建徽.模块化多电平换流器装置级控制器的设计[J].低压电器,2011(17):28-31. |
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| 作者姓名： | 谭玉茹 苏建徽 |
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| 作者单位： | 合肥工业大学教育部光伏系统工程研究中心,安徽合肥,230009 |
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| 摘 要： | 介绍了模块化多电平换流器的结构及原理,并搭建了数学模型。基于MMC的电容电压波动和环流问题,设计了MMC的装置级控制器。最后,通过Matlab/Simulink搭建了包含该控制器的MMC仿真模型。结果证明,该控制方法可有效地平衡换流器子模块的电容电压及抑制内部环流,并且不会对MMC外部输出的交流电压和电流产生负面影响。
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| 关 键 词： | 模块化多电平换流器 电容电压均衡 环流抑制 |
A Novel Modulation Scheme of Modular Multi-Level Converter |
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| TAN Yuru,SU Jianhui.A Novel Modulation Scheme of Modular Multi-Level Converter[J].Low Voltage Apparatus,2011(17):28-31. |
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| Authors: | TAN Yuru SU Jianhui |
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| Affiliation: | TAN Yuru,SU Jianhui(Research Center for Photovoltaic System Engineering Ministry of Education,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The principle and topology of modular multi-level converter(MMC) were described,and a mathematical model was set up.Based on the problems of circulating current and capacitance voltage,a device-level controller was designed.The simulation results based on Matlab/Simulink show that the control method can balance the capacitance voltage of submodule and suppress the inner circulating current of MMC.It is also shown that this additional controller doesn't affect the AC side dynamics of MMC. |
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| Keywords: | modular multi-level converter(MMC) capacitance voltage balancing circulating current suppressing |
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