Ripple Controlling MMC For Circulating DC Current

Abstract

MMC is an evolving topology that is capable of take care of high voltage and power rankings.Under the unbalanced circumstance, the principle subject matter of controlis to lower the bad-sequence line contemporary. Moreover,the circulating cutting-edge of a MMC includes now not most effective double-linenegative-collection thing, which appears below the balancedcondition, however also superb- and zero-series double-line components. Thus the controller have to be able to cast off all the ones components of the circulating cutting-edge. A proportional-resonantcontroller (PR controller) is applied to adjust the fine- andnegative-sequence components of circulating cutting-edge. In addition,the 0-series issue of circulating contemporary is controlledby a dc modern-day controller. The proposed manipulate approach isconfirmed in MATLAB/simpowersystem.