METHOD FOR CONNECTING BUSBAR SYSTEM TO PARALLEL BRANCHES OF SINGLE-PHASE-AC CONVERTER ARM Russian patent published in 2023 - IPC B60L9/12 H02M7/219 H02G5/02 

FIELD: rectifier-inverter converters.

SUBSTANCE: invention relates to a circuit for connecting buses of rectifier-inverter converters. The method of connecting a system of current-carrying busbars to the parallel branches of the arm of a single-phase-alternating current converter of electric transport is to connect the DC busbars through the busbar system to the DC voltage terminals of parallel-connected power semiconductor devices (PSDs) and connect the AC busbars through the busbar system to the terminals alternating voltage parallel connected PSDs. In this case, the AC bus is connected asymmetrically along the length of the equalizing bus. Moreover, the equalizing bus is also connected asymmetrically to the collector bus of the first pair of PSDs. The equalizing bus is also connected asymmetrically to the collector bus of the second pair of PSDs. In this case, the DC bus, equalizing bus and emitter buses are connected to the DC voltage terminals of parallel-connected PSDs in the same way.

EFFECT: optimal distribution of current along the parallel branches of the converter arm.

1 cl, 2 dwg