Design of Main Circuit Parameters for Active Power Filter of Three-level Four-leg

Yan Wang, Shengwei Feng


The selection of each component for the active power filter plays an important role in its control performance. Due to the high cost of high-power switch devices and circuit elements, proper parameters are selected to make the filter meet the control performance requirements and make the design price of the filter economical and reasonable. Aiming at the three-level four-leg active power filter main circuit, this paper designs and selects the parameters of power switching device, DC-side energy storage capacitor and inlet inductor according to the capacity of the filter.


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