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

Claim 12:
13. The multi-pulse line-interphase transformer converter according to claim 12, wherein the electric part is configured such that:
during an inverter operation mode, each upper anti-parallel thyristor AH is triggered when the related emulated signal of its bridge leg crosses −0.5−D with rising slope, and when it crosses −x+D at falling slope, with x defined as x=abs(sin(π/6−2*π/pn)) where pn is the pulse number of the converter, and where D is a positive value in the range of a few percent of a normalized signal providing freewheeling during commutation; and
in rectifier operation, each upper anti-parallel thyristor AH is triggered at zero-crossing at rising slope of the related emulated signal of its bridge leg, and each lower thyristor AL is triggered at zero-crossing at falling slope of the related emulated signal of its bridge leg.