Title :
On the loading of power modules in a three phase voltage source converter
Author :
Blasko, Vladimir ; Lukaszewski, Richard
Author_Institution :
Stand. Drives Dev., Rockwell Autom., Mequon, WI, USA
Abstract :
The loading of free wheel diodes (FWD) and IGBTs in the power modules of a voltage source power converter (VSC) are investigated. In converter duty, the FWD are utilized more then the IGBTs. Presently, most FWD in power modules are optimized for inverter duty. This practice tends to undersize the FWD from a converter viewpoint. This design philosophy is examined in the paper. For this purpose, the original dynamic thermal model of IGBTs and FWD were developed. Model parameters were identified from the manufacturers´ catalogue data. A mathematical model of the entire VSC was developed to compute current, voltage, power and thermal conditions for the power module and other components in converter operation
Keywords :
DC-AC power convertors; PWM invertors; bipolar transistor switches; insulated gate bipolar transistors; load (electric); power bipolar transistors; power integrated circuits; power semiconductor diodes; power semiconductor switches; semiconductor device models; switching circuits; thermal analysis; IGBTs; VSI; design philosophy; dynamic thermal model; free wheel diodes; mathematical model; power modules; semiconductor device loading; three-phase voltage source power converter; Converters; Diodes; Insulated gate bipolar transistors; Inverters; Mathematical model; Multichip modules; Power conversion; Virtual manufacturing; Voltage; Wheels;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.629018
