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Magnetically integrating converter-side and grid-side inductors is an effective way to reduce the volume and weight of LCL filters. However, the inevitable magnetic coupling between the two coils weakens the high order harmonic attenuation ability of LCL filters. In this paper, an active magnetic decoupling method is proposed to tackle this issue, and the basic operation principle is to counteract...
Compared to conventional L filters, LCL filters and LLCL filters have better high-frequency harmonic attenuation ability with less total inductance. However, one or two more magnetic cores are commonly demanded for grid-side and paralleled trap inductors. To further reduce the weight and volume of filter inductors, magnetic integration technique is an effective way. For conventional integrated LCL...
Passive power filters are necessary for attenuating the switching frequency harmonics introduced by the modulation of power converters. Recently, various topologies of novel passive power filters have been proposed to enhance their respective attenuation ability with relatively small filter components, i.e., filter inductors and capacitors. This paper reviews the state-of-the-art passive power filters...
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