交流变频调速系统负载侧滤波器的研究

谐波是PWM变频器的突出问题 ,它引起电动机损耗增加和转矩脉动 ,并且影响变频器的安全运行。本文提出了采用负载侧滤波器消除变频器的输出谐波的方法 ,并应用计算机辅助分析手段进行了滤波器参数的优化设计和带滤波器变频调速系统的分析。试验表明该项措施在消除变频器输出谐波以及提高调速系统性能方面的效果是明显的

Research of filter at the side of load in AC variable frequency speed regulating control system

Harmonic is an important problem of PWM_inverter,it will cause loss increasing and torque pulse in motor ,and effect safe working of inverter.A method which adopts fitler in side of load to eliminate the harmonic and methods of the optimum design and analysis in filter parameters and speed control system.The test shows that it is evident to eliminate the haromonics and to increase property of speed control system with this method.