Title :
Multicommutation of IGBTs in large inverters
Author :
Bakran, Mark M. ; Helsper, Martin ; Eckel, Hans-Gunter ; Nagel, Andreas
Author_Institution :
A&D LD TD, Siemens AG, Nuremberg
Abstract :
Large inverter-systems are characterized by a significant number of parallel IGBTs operating on the same dc-link. The IGBT-phases are cross coupled by their mutual stray inductance. This paper investigates the special effects occurring due to nearly simultaneous switching of multiple IGBTs. This operation can cause a significant increase in stress on the IGBT and on the free wheel diode. Countermeasures to cope with these problems are discussed
Keywords :
commutation; inductance; insulated gate bipolar transistors; invertors; power semiconductor diodes; power semiconductor switches; IGBT switching; free wheel diode; large inverters; multicommutation; mutual stray inductance; Circuit testing; Diodes; Inductance; Insulated gate bipolar transistors; Inverters; Mutual coupling; Stress; Switches; Voltage control; Wheels; Device application; Free wheel diode; IGBT; Parallel operation; Voltage Source Inverters (VSI);
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219249
