模块化多电平换流器模块冗余优化配置方法  

Optimal configuration of modular redundancy for MMC

作　　者：王宝安[1] 谭风雷[1] 商姣[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210096

出　　处：《电力自动化设备》2015年第1期13-19,共7页Electric Power Automation Equipment

基　　金：江苏省自然科学基金资助项目(BK20130627)~~

摘　　要：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。A method of optimal configuration for modular redundancy of MMC（Modular Multilevel Converter）is proposed,which establishes a multi-objective optimization function and obtains the optimal quantity of redundant sub-module to increase its utilization rate and enhance system reliability. The topological structure of MMC and the operation mechanism of its sub-module are analyzed. The protection schemes of study of module redundancy are studied and the specific steps of its optimal configuration are given,which are analyzed for engineering application. Simulative results show that,the optimal redundant sub-module configuration is simply and effectively obtained,which ensures the reliable system operation while reduces the costs,verifying the validity and feasibility of the proposed method.

关 键 词：模块化多电平换流器 模块冗余 优化 多目标 换流器 

分 类 号：TM46[电气工程—电器]