三电平逆变器硬件死区补偿策略的研究  

Research of Hardware Dead-time Compensation Strategy of Three-level Inverter

作　　者：张林[1] 许春雨[2] 

机构地区：[1]山东电力集团公司泰安供电公司,山东泰安271400 [2]太原理工大学电气与动力工程学院,山西太原030024

出　　处：《山西电力》2013年第3期21-24,共4页Shanxi Electric Power

基　　金：教育部博士点基金项目(2010 1402120004)

摘　　要：通过深入分析三电平NPC(二极管箝位型)逆变器死区效应及其电路工作原理,设计了一种适用于此类型逆变器的硬件死区补偿方法。详细分析三电平逆变桥臂互补开关器件的交替工作过程,通过适当的硬件电路补偿,合理调整触发脉冲的死区时间,可以实现死区效应的补偿。最后对该方法在MATLAB中进行了仿真,并在以控制芯片TMS320F2812搭建的实验平台上进行了实验验证,通过与普通死区补偿方法对比,验证了该方法的有效性。A hardware dead-time compensation method for three-level NPC inverter is presented based on deep analysis of its dead-time effect and electrical circuit. The alternate complement working process of the three-level inverter bridge switching devices is analyzed in detail. Dead-time effect is compensated by appropriate hardware circuit compensation and a reasonable adjustment of dead-time of pulse triggering. Finally, the method is simulated in MATLAB and verified on the experimental platform with control chip TMS320F2812. This method is verified to be effective compared with ordinary dead-time compensation method.

关 键 词：三电平 逆变器 死区效应 死区补偿 

分 类 号：TM351[电气工程—电机]