摘要
变频器是应用广泛、负载变化范围大的典型非线性负载。文章讨论了其供电系统谐波状况及谐波电压谐波电流变化的特征。针对 1台 5 0 k VA变频器谐波源 ,通过特殊设计的无源滤波器和自适应环路参数控制方法的运用 ,提出 1种混合有源电力滤波器的谐波治理方案。分析了其原理、给出了设计原则 ,并进行了仿真和实验。该方案具有谐波抑制效果良好、对电网谐波、负载变化适应性强等优点。
By the measurement of the power system for ac drive inverter,which widely is used,the harmonic status of industry field power system is showed.A hybrid active power filter with special designing passive filters and adaptive loop parameter control is proposed to suppress the harmonics of a rating 50 kVA PWM inverter while its load varies widely.Simulation and experiment result are also given out.The proposed HAPF has good suppress performance,good adaptability for wide variable load and other harmonic sources.
出处
《电气传动》
北大核心
2002年第3期31-35,共5页
Electric Drive
