Dependency of Modified Resonant Controllers with Time Delay Compensation on Gain Factor

Resonant controllers can be applied in the field of electric drives to control the current of the machine and to reduce ripple current. Other authors proposed modified forms of resonant controller, which are examined in this paper along with traditional form of resonant controller. Transfer functions of considered resonant controllers contain gain factor k
i
, which is also a degree of freedom of these forms. Dependency of resonant controller behavior on this gain factor is studied via frequency response analysis in logarithmic scale (bode diagram).