文档介绍：摘要摘要模块组合多电平变换器(Modular MultilevelConverter,MMC)以其模块化的设计、灵便的控制、易于扩展、易实现中高压的输出等特点,可应用于高压大功率场合。对MMC的研究成为当前一大研究热点。方面,在改善电能质量方面有着实用价值。论文对多电平逆变技术的发展和几种多电平变换器的拓扑电路做了简要的说明。分析了 MMC拓扑电路结构的电路与运行工作原理,推导桥臂上的电压电流的关系及输出电压电流的关系。根据电压电流关系,构建MMC拓扑结构的等效电路模型。简单介绍模块内存在的电容电压不平衡现象,并给出电容电压控制方案。分析了 MMC三相电路中的环流的产生的原因及对输出电压的影响,并进行了仿真。研究了多电平逆变器的PWM控制方法,比较各种方法的优缺点。将MMC ,的结构与工作原理,用前馈解耦控制。,进行仿真实验,,,具有速度快,补偿效果好等优点。设计DSP与FPGA的主从工作模式的硬件电路与软件框图。关键词:模块组合多电平变换器(MMC);环流;静止同步补偿器();仿真验证;DSP与FPGA; 万方数据模块组合多电平变换器(MMC)的研究 Abstract The modular multilevelconverter(Modular MultilevelConVener,MMC)谢th itsthemodular design,flexible control,easy toexpand andeasy toachieve high output characteristics,SO it'swidely used inhighvoltage andhigh power applications. 111eresearch onMMC e ahotresearch. There ispragmatic value inimproving thepower quality thattheapplication of MMC .This paper gives a brief description to the origin of the multilevel inverterand several kinds oftopology circuitofmultilevel converter briefly. The circuit and operation principle ofMMC topology structure derives therelationship between theoutput voltage and current and thevoltage and current ofbridge tothevoltage current relationship,constructs the equivalent circuitmodel ofMMC is asimple introduction ofthe module capacitor voltage unbalance,and voltage control scheme cause and theinfluence tooutputvoltage ofthe circulation ofMMC inthree-phase circuit areanalysis and simulation. The multilevelinverterPWM control methods pares theadvantages anddisadvantages application ofMMC in itanalyses the structure and theworking principle of .The feed-forward decoupling isused . M- system simulationmodel isbuilttosimulate,the record ofthe simulation ofM-pensation device inthedynamic loadconditions indicate thattheM- adapts todifferent load has the advantages offastspeed,pensation,etc. The hardw