随着电力电子技术的应用，相继出现了自动调谐滤波器和连续多调谐滤波器等新型结构，滤波性能得到极大改善。
With the extensive application of power electronic techniques, some new structures, such as auto-tuning filter and continuously multi-tuned filter have brought great improvement of filter performance.
本文针对混合型有源电力滤波器的电路拓扑，介绍了无源注入支路的基本工作原理，重点阐述了如何选择注入支路的调谐频率。
In view of the topology of the hybrid active power filter with injection circuit, analysis its principle in detail, as well as choice the desirable resonance frequency.
本文针对混合型有源电力滤波器的电路拓扑，介绍了无源注入支路的基本工作原理，重点阐述了如何选择注入支路的调谐频率。
In view of the topology of the hybrid active power filter with injection circuit, analysis its principle in detail, as well as choice the desirable resonance frequency.
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