一种新型的正弦脉宽调制技术研究  

A New Sinusoidal Pulse Width Modulation

作　　者：谢志远[1] 张颖[1] 胡正伟[1] 

机构地区：[1]华北电力大学,保定河北071003

出　　处：《电子质量》2009年第12期1-3,12,共4页Electronics Quality

基　　金：华北电力大学博士科研基金项目(200712001)

摘　　要：提出了一种基于Nios Ⅱ处理器的SPWM(Sinusoidal Pulse Width Modulation)系统设计方案,该系统主要由键盘、SPWM模块和液晶3部分组成。键盘实现SPWM模块的输入参数的控制;SPWM模块根据键盘的输入参数产生SPWM波形;液晶显示SPWM波形的数字值和输入参数值。整个系统由NiosII处理器实现控制,应用DSP Builder搭建模型避免编写复杂硬件编程语言,而且可以实现幅度、相位和频率可控。经过行为、功能和时序三级仿真,实验结果表明基于Nios Ⅱ处理器的SPWM系统可以方便的实现电机的智能控制,实现输入参数可控制和输出结果可观测。Proposed a Nios Ⅱ processor-based sinusoidal pulse width modalation design,The system mainly consists of the keyboard, SPWM module and liquid crystal three parts. Keyboard input parameters to achieve SPWM control module; SPWM module according to keyboard input parameters produce SPWM waveform;LCD SPWM waveform digital values and input parameter valueso The entire system is Niosll processor for control, application DSP Builder to build models to avow the preparation of complex hardware programming language, also to achieve amplitude, phase and frequency control, Through behavior, functional and timing simulation of three experimental results show that the SPWM based Niosll processor system can facilitate the realization of intelligent motor control, can control the input parameters and output results can be observed.

关 键 词：正弦脉宽调制 DSP BUILDER 直接数字合成 NIOS Ⅱ AVALON总线 

分 类 号：TN787.2[电子电信—电路与系统]