矿用级联多电平变换器脉宽调制策略  

PWM Strategy for Cascade Multilevel Converter in Mine

作　　者：张超[1] 

机构地区：[1]中国矿业大学(北京),北京100083

出　　处：《煤矿现代化》2017年第2期90-92,共3页Coal Mine Modernization

摘　　要：针对井下供电设备和变频传动装置等存在的不足,对五电平变换器的一种简化开关拓扑结构和相应调制方法进行推导分析,给出一种可行的调控方案。通过软件仿真得到电压波形,表明该拓扑结构在能量损耗、输出谐波、等效开关频率等方面上的优势。对煤矿井下设备的改进提升上具有一定借鉴作用。In view of the disadvantages of the equipment in mine, this paper analyzes the simplified switching topology and the corresponding modulation method of a five-level converter, and presents the control scheme. Simulation results shows that the topology structure has advantages in energy loss, output harmonic, equivalent switching frequency and so on. Have certain reference function to the improvement and upgrading of coal mine underground equipment.

关 键 词：级联 多电平变换器 载波移相 SPWM 

分 类 号：TM46[电气工程—电器]