Title :
Multiple turn on of IGBTs in Large Inverters
Author :
Bakran, Mark M. ; Helsper, Martin ; Eckel, Hans-Gunter
Author_Institution :
A&D LDTD, Siemens AG
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 turn on of multiple IGBTs. This operation can cause a significant increase in stress on the IGBT and especially on the free wheeling diode. Countermeasures to cope with these problems will be discussed
Keywords :
insulated gate bipolar transistors; invertors; free wheeling diode; inverter-systems; mutual stray inductance; parallel IGBT operation; Circuit testing; Diodes; Inductance; Insulated gate bipolar transistors; Inverters; Mutual coupling; Stress; Switches; Traction motors; Voltage control;
Conference_Titel :
IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on
Conference_Location :
Paris
Print_ISBN :
1-4244-0390-1
DOI :
10.1109/IECON.2006.347218
