POWER CONVERSION SYSTEM Russian patent published in 2014 - IPC H02M7/497 H02M7/53846 H02M7/53862 H02M1/14 H02P27/08 

FIELD: electricity.

SUBSTANCE: power conversion system comprises a power converter, using multiple branches to convert inlet electric power and discharge capacities into multiple phases. Each branch comprises upper and lower arms; a controller 30 that controls the upper and lower arm of each branch, in order to control pulse current passing via the branch. The controller 30 calculates a command of duration of connection for each branch in one period of control for each phase and for the first and second branches from multiple branches, provided for one determined phase, changes the phase of the calculated command of connection duration, so that the time period, when the positive pulse current flows via the first branch, and the time period, when the negative pulse current flows through the second branch, cover each other in one control period.

EFFECT: reduced pulsations of current in a multi-phase power converter.

10 cl, 9 dwg