基于DSP-CPLD的三电平SVPWM发生器设计  

Design of a DSP-CPLD based SVPWM Generator for Three-level Inverter

作　　者：曹伟[1] 张崇巍[1] 张兴[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》2009年第3期60-62,共3页Power Electronics

摘　　要：分析了三电平SVPWM发生器中所使用单片DSP的缺点,研究了基于DSP-CPLD组合的三电平SVPWM发生器。该矢量发生器采用一种三电平参考电压分解的空间矢量简化算法,使计算得到简化。设计了基于DSP-CPLD的三电平矢量发生器,它能够节省DSP芯片资源,并使三相PWM波实现同步输出。仿真和实验验证了该三电平矢量发生器的可行性和简易性。The generation of the space vectors of multi-level inverter requires the formation of a group of complex driving signal.The drawback of three-level SVPWM generation using single DSP is analyzed.The paper introduces a simple three level SVPWM algorithm with the reference voltage vector decompose,which can make the calculation easier.A DSP-CPLD based SVPWM generator for three-level inverter is designed,which can save the resource of the DSP,as well as make the driving signal be sended synchronization.Finally,the simlulation and experimental results verify the space vector generation is feasible and simple.

关 键 词：逆变器 矢量/三电平 空间矢量调制 

分 类 号：TM464[电气工程—电器]