A method for controlling a converter, wherein positive and negative lines of an intermediate circuit are connected by a half-bridge to an alternating voltage phase conductor via semiconductor switches, where each semiconductor switch has a series connected separate fuse, and where the method includes detecting a defective semiconductor switch that permanently remains in an electrically conductive state and incrementally melting the fuse of the defective semiconductor switch by short-circuiting the positive and the negative lines to each other multiple times via the defective semiconductor switch and via at least two others of the semiconductor switches, during which each short circuit lasts only one pulse duration Tsoa that is shorter than a melting duration Ta needed by the fuse to melt in the event of a continuous short circuit such that the converter robustly reacts in the event of a permanent short circuit caused by one of the semiconductor switches.
Converter having short-circuit interruption in a half-bridge
2020-02-25
Patent
Electronic Resource
English
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
Converter Having Short-Circuit Interruption In A Half-Bridge
European Patent Office | 2018
|Battery pack equalization circuit based on half-bridge converter and control method
European Patent Office | 2021
|Portable circuit-interruption indicator
NTRS | 1971
|Circuit interruption in vacuum
TIBKAT | 1957
|