基于电网电压定向的三电平并网逆变器的研究  

Experimental Study of the Three-level Grid-connected Inverter Based on the Grid Voltage Orientation

作　　者：姜卫东[1] 吴志清[1] 佘阳阳[1] 李王敏[1] 

机构地区：[1]合肥工业大学,安徽合肥230009

出　　处：《电力电子技术》2013年第8期19-21,共3页Power Electronics

基　　金：国家自然科学基金(51007018)~~

摘　　要：介绍了三相并网逆变器的数学模型,采用了基于电网电压定向及前馈的双环控制,同时应用基于零序电压注入的算法解决了中点电位不平衡问题,搭建了硬件实验平台。实验表明所使用的三电平控制策略及中点电位控制算法是有效的。A mathematical model of the three-phase grid-connected inverter is described by using the double-loop control strategy based on the grid voltage orientation and grid voltage feed forward, adopting injecting zero-sequence voltage algorithm to solve the imbalance of the midpoint potential and building a experimental hardware platform.The experiments show that this three-level control strategy and the midpoint potential control strate^v are effective.

关 键 词：逆变器 中点电位平衡 矢量控制 

分 类 号：TM464[电气工程—电器]