摘要
根据SPWM基本原理 ,应用MATLAB软件及其电气模块库 ,建立逆变电路及其负载感应电机模型 ,针对影响逆变电路输出电压频谱分布的主要因素进行仿真分析 ,对仿真结果进行比较 ,得出其频谱分布的规律性结论。根据结论 ,通过设计加装滤波器来抑制逆变电路输出谐波 ,并加以仿真比较 ,得到了较好的滤波效果。
By the principle of SPWM, the inverter and mortor model based on the Power System Blockette in MATLAB software is established. The rule of harmonic spectrum distribution and the trends toward which harmonics vary with inverter parameters have been given after the quantitative harmonic analysis of inverter output wave. At last, a simple practical and effective filter is designed to eliminate the hamornics and verified by the simulating results.
出处
《机电工程》
CAS
2000年第6期50-53,共4页
Journal of Mechanical & Electrical Engineering
