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Optimal configuration of modular redundancy for MMC
Author(s): WANG Baoan, TAN Fenglei, SHANG Jiao
Pages: 13-
19
Year: 2015
Issue:
1
Journal: Electric Power Automation Equipment
Keyword: modular multilevel converter; module redundancy; optimization; multi-objective; electric converters;
Abstract: 针对模块化多电平换流器(MMC)提出一种模块冗余优化配置方法,该方法主要是从提高系统可靠性和冗余子模块有效利用率以及减少冗余子模块数量这3个目标出发,建立多目标优化函数,进而求解得到最优冗余子模块数量.分析了MMC的拓扑结构及其子模块的工作原理,在研究模块冗余保护方案的基础上,详细给出模块冗余优化配置方法的具体步骤,并将其应用到工程实际中进行分析.仿真结果表明该方法可简单、有效地配置冗余子模块数量,在保证系统可靠运行的情况下,节约成本,验证了该方法的有效性和可行性.
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