Integrated magnetic device for low harmonics three-phase front-end

摘要

An integrated magnetic for a low harmonics three-phase bidirectional front-end and also for AC/DC and DC/AC power converters. Its use enables reduction of the harmonics of the currents absorbed or injected to three-phase power line by using only one device which integrates a splitter and an inductor function. Compared to known solutions, cost, material and dimensions of the integrated magnetic device are reduced thanks to the magnetic core comprising three closed sub-assemblies and one or more jokes, separated by air-gaps from the sub-assemblies.

主权项

1. An integrated magnetic device for low harmonics three-phase front-end comprising
three magnetic sub-assemblies, wherein each magnetic sub-assembly comprises a close magnetic loop without air-gaps, two wound limbs and at least three windings, at least one first common yoke and at least one second common yoke which magnetically connect said three magnetic sub-assemblies, at least one air-gap between said three magnetic sub-assemblies and said at least one first common yoke or said at least one second common yoke, three current inputs connectable to a three-phase power grid, at least six current outputs, two for each current inputs, said current outputs being galvanically connected to said three current inputs and connectable to a load.