ACTIVE FILTER CONTROL DEVICE, ACTIVE FILTER DEVICE, ELECTRIC POWER CONVERSION SYSTEM, CONTROL METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a control device that suppresses a ripple current of an active filter.SOLUTION: An active filter control device comprises: a carrier period setting part for setting a relatively long carrier period in an active filter constructed by an electric power conversion system, when the input current is larger than a predetermined threshold value and setting the relatively shorter carrier period when the input current is smaller than the predetermined threshold value, on the basis of the magnitude of an input current of the electric power conversion system; and a control signal output part that outputs a control signal to the active filter on the basis of the carrier period to be set by the carrier period setting part.SELECTED DRAWING: Figure 2