Patent ID: 11949348
Assignee: ABB E-MOBILITY B.V.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The multi-pulse line-interphase transformer converter according to claim 5, wherein the bridges are arranged in a plurality of bridge arrangements, each of the plurality of bridge arrangements comprising three bridges, wherein each bridge is connected to an intermediate phase of corresponding splits of the three AC grid phases, wherein the intermediate phases are connected at a center point between two actively controlled switches, the center point being a bridge leg, and wherein the controller is configured to generate control signals based on the comparison such that:
an upper active switch STop of each bridge is in on-state while the related emulated signal of its bridge leg is higher than both of the emulated signals of the other two phase legs, and this upper active switch STop is actively switched into off state when the related emulated signal of its bridge leg becomes lower than one of the two emulated signals of the other two phase legs;
each lower active switch SBot of each bridge is in on-state while the related emulated signal of its bridge leg is lower than both of the emulated signals of the other two phase legs, and upper active switch is actively switched into off-state when the related emulated signal of its bridge leg becomes higher than one of the two emulated signals of the other two phase legs.