基于Simulink的SPWM逆变电路谐波分析  

Harmonic analysis of SPWM inverter based on Simulink

作　　者：林倩 杨姝玥 黄翔东 LIN Qian;YANG Shuyue;HUANG Xiangdong(College of Physics and Electronic Information Engineering,Qinghai Minzu University,Xining 810007,China;School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]青海民族大学物理与电子信息工程学院,青海西宁810007 [2]天津大学电气自动化与信息工程学院,天津300072

出　　处：《现代电子技术》2023年第12期22-26,共5页Modern Electronics Technique

基　　金：国家自然科学基金项目(62161046);青海省基础研究计划面上项目(2021-ZJ-910)。

摘　　要：为有效减少和抑制单相逆变电路所产生的谐波,文中利用正弦波脉宽调制技术(SPWM)对双极性和单极性调制逆变电路进行建模与仿真,并进一步分析重要参数调制度和载波比对谐波成分的影响。仿真结果表明,单极性调制时的谐波性能优于双极性,合理增大调制度和载波比可以减少输出电压的谐波成分,从而提高输出电压的质量。In order to effectively reduce and suppress the harmonics produced by the single⁃phase inverter circuit,the technology of sinusoidal pulse width modulation(SPWM)is utilized to model and simulate the bipolar and unipolar modulated inverter circuits,and the influence of the important parameter modulation system and the carrier ratio on the harmonic components is further analyzed.The simulation results show that the harmonic performance of unipolar modulation is better than bipolar modulation,and the harmonic component of output voltage can be reduced by increasing the modulation regime and carrier ratio reasonably,so as to improve the quality of output voltage.

关 键 词：单相逆变电路 SPWM控制 谐波分析 SIMULINK 双极性 单极性 载波比 

分 类 号：TN787-34[电子电信—电路与系统]