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

Claim 0:
1. A multi-pulse line-interphase transformer converter comprising:
a magnetic part including magnetic components configured to be connected to a three-phase AC grid; and
an electric part including a multi-phase voltage system configured to be connected to a common DC capacitor;
wherein the magnetic part is configured to split each AC grid phase n times into two phases, resulting in a plurality of intermediate phases at an internal interface, each intermediate phase corresponding to a pulse line of the multi-pulse line-interphase transformer converter;
wherein the intermediate phases are connected to the multi-phase voltage system;
wherein the multi-phase voltage system comprises bridges with actively controlled switches;
wherein the bridges are connected in parallel to the common DC capacitor; and
wherein the multi-pulse line-interphase transformer converter further comprises a control unit having a signal processing unit configured to emulate the electric part and to provide emulated intermediate phase signals to a controller for controlling the actively controlled switches, and wherein the emulated intermediate phase signals are sinusoidal signals having a pre-calculated phase angle.