基于FPGA的可变频SPWM发生器的实现  

Realization of Variable-frequency Three-phase SPWM Generator Based on FPGA

作　　者：曾启帆[1] 孟光伟[1] 向东[1] 

机构地区：[1]海军工程大学电气工程学院,武汉430033

出　　处：《舰船电子工程》2014年第6期131-133,151,共4页Ship Electronic Engineering

摘　　要：采用一种峰值采样型SPWM采样法,实现了基于FPGA的输出频率在48Hz^52Hz的范围内可调的三相SPWM信号发生器,并接入三相PWM逆变桥电路,通过滤波可得到稳定的正弦波形,仿真和实验结果表明该方法满足设计要求。Adopted by a nonsymmetrlcal rules peak sampling method,a three-phase SPWM pulse generator,in which frequency is adjustable from 48to 52Hz,is presented and realized based on FPGA.After connecting to the three-phase PWM inverter bridge and filtering,the generator can output a steady AC sine-wave voltage.The simulative results and experimental tests verify that the method meets the design requirment.

关 键 词：FPGA 三相正弦脉宽调制 可变频 

分 类 号：TP787[自动化与计算机技术—检测技术与自动化装置]