Abstract: A controller for a dual active bridge (DAB) is disclosed. The controller includes a primary converter controller, configured to be coupled to a primary converter in the DAB and to control a duty cycle of the primary converter in the DAB based on a difference between a reference value and an output current of a secondary converter in the DAB.

Abstract: The invention relates to a pumped two-phase cooling system that includes a two-phase working fluid circuit, having a first circuit section for guiding a first portion of the working fluid to a preheater assembly the first portion in the first circuit section having first thermal characteristics, a second circuit section for guiding a second portion of the working fluid to the preheater assembly, the second portion in the second circuit section having second thermal characteristics, and a third circuit section for guiding a third portion of the working fluid from the preheater assembly to at least one evaporator, the third portion in the third circuit section having third thermal characteristics based on the first and second thermal characteristics.

Abstract: A power electronic transformer, including at least one first voltage unit including first voltage power electronics building blocks, at least one second voltage unit including second voltage power electronics building blocks, the first voltage being lower than the second voltage, and a two-phase cooling unit including a two-phase cooling medium for cooling the at least one second voltage unit. The two-phase cooling unit allows for an improved overall system performance of the transformer regarding costs, effort for maintenance, risk of malfunction or failure, and weight and footprint of the construction.

Abstract: The present disclosure relates to a method for detecting a DC magnetization in a transformer and controlling the transformer, the method including: sensing, using at least one vibration sensor, at least one vibration on at least one surface of the transformer or on at least one surface of a component connected to the transformer; measuring the sensed at least one vibration; detecting, based on the measured at least one vibration, the DC magnetization in the transformer; and controlling, based on the detected DC magnetization, the transformer. The present disclosure also relates to a respective device and system.

Abstract: The present disclosure relates to a method for detecting a DC magnetization in a transformer and controlling the transformer, the method including: sensing, using at least one vibration sensor, at least one vibration on at least one surface of the transformer or on at least one surface of a component connected to the transformer; measuring the sensed at least one vibration; detecting, based on the measured at least one vibration, the DC magnetization in the transformer; and controlling, based on the detected DC magnetization, the transformer. The present disclosure also relates to a respective device and system.

Abstract: A bypass thyristor device includes a semiconductor device providing a thyristor with a cathode electrode on a cathode side, a gate electrode on the cathode side surrounded by the cathode electrode and an anode electrode on an anode side; an electrically conducting cover element arranged on the cathode side and in electrical contact with the cathode electrode on a contact side; and a gate contact element electrically connected to the gate electrode and arranged in a gate contact opening in the contact side of the cover element; wherein the cover element has a gas expansion volume in the contact side facing the cathode side, which gas expansion volume is interconnected with the gate contact opening for gas exchange.

Abstract: A bypass thyristor device includes a semiconductor device providing a thyristor with a cathode electrode on a cathode side, a gate electrode on the cathode side surrounded by the cathode electrode and an anode electrode on an anode side; an electrically conducting cover element arranged on the cathode side and in electrical contact with the cathode electrode on a contact side; and a gate contact element electrically connected to the gate electrode and arranged in a gate contact opening in the contact side of the cover element; wherein the cover element has a gas expansion volume in the contact side facing the cathode side, which gas expansion volume is interconnected with the gate contact opening for gas exchange.