PWM逆变器特定谐波抑制技术  

Specific Harmonic Suppression Technology for PWM Inverter

作　　者：辛平[1] 段慧达[1] 孙冠男[2] Xin Ping Duan Huida Sun Guannan(Electric and Information Engineering College of Beihua University, Jilin 132021, China Synthetic Resin Factory of PetroChina Jilin Petrochemical Co ,Jilin 132021, China)

机构地区：[1]北华大学电气信息工程学院,吉林吉林132021 [2]中国石油吉林石化公司合成树脂厂,吉林吉林132021

出　　处：《北华大学学报（自然科学版）》2017年第2期265-269,共5页Journal of Beihua University（Natural Science）

基　　金：吉林省教育厅科技技术研究项目(201656;2015162)

摘　　要：建立电压型PWM逆变器输出电压的数学模型,分析其谐波分布规律,以改善PWM逆变器输出波形质量,抑制谐波污染.针对电压型PWM逆变器建立了基于SHEPWM的数学模型,根据特定消谐技术求解非线性方程组,采用同伦算法获得开关角数据,以保证特定消谐方程组的解在大范围内快速收敛.仿真结果证明了该方案的可行性.In order to improve the quality of output waveform and suppress harmonic pollution of voltage type PWM inverter,the mathematical model of the output voltage of the voltage type PWM inverter is established and the harmonic distribution law is analyzed.The voltage type PWM inverter mathematical model was established based on SHEPWM,according to the specific harmonic elimination technique for solving nonlinear equations,switch angle data is obtained by using homotopy algorithm,which can guarantee fast convergence in a wide range of solutions of harmonic elimination equations.The simulation results prove the feasibility of this scheme.

关 键 词：PWM逆变器 特定谐波抑制 同伦分析方法 

分 类 号：TM464[电气工程—电器]