基于静止坐标系空间电压矢量三电平逆变器的控制策略  

Control Strategy of Three-Level Inverter Based on SVPWM in Static Coordinates

作　　者：张立[1] 李海涛 刘菊青[1] 张勇[3] 李莉[4] 

机构地区：[1]安徽矿业职业技术学院,安徽淮北235000 [2]安徽中兴继远信息技术有限公司,安徽合肥230088 [3]淮北师范大学,安徽淮北235000 [4]濉溪供电公司,安徽淮北235100

出　　处：《低压电器》2010年第15期30-34,共5页Low Voltage Apparatus

摘　　要：在分析三电平逆变器空间电压矢量控制的基础上,提出了一种基于静止坐标系SVPWM控制策略。该控制策略在常规空间电压矢量调制(SVPWM)的基础上,将直角坐标系转换为静止坐标系,对三角形区域判断规则、合成参考电压矢量的计算和PWM信号的产生方法进行了研究。该算法不仅计算简单,易于实现,通过仿真验证了该控制策略的正确性及有效性。The basic principle of space vector pulse width modulation（SVPWM） for three-level inverter was analyzed,a SVPWM control strategy in static coordinates was presented.Based on traditional SVPWM control strat-egy,the orthogonal coordinate system was converted to the static coordinates.In static coordinates,the judging rules of the sectors,the out-voltage vector sequence,as well as the producing means of PWM signals were studied.The algorithm was simple and easy to realize.The simulation results showed the effectiveness and correctness of the control strategy.

关 键 词：空间矢量脉宽调制 三电平 逆变器 

分 类 号：TM464[电气工程—电器]