Title :
Prediction of switching loss variations by averaged switch modeling
Author :
Al-Naseem, O. ; Erickson, Robert W. ; Carlin, Palmer
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
An analytical averaged equivalent circuit model is derived revealing how dominant loss mechanisms vary with power converter operating point in a PWM converter. The model is based on the operational characteristics of power diodes and IGBTs. Laboratory experiments support the derived model and confirm that IGBT current tailing and diode reverse-recovery are indeed the most critical losses in a PWM converter. These losses are more significant at light load, hence reducing the energy capture of converters used in wind generation
Keywords :
PWM power convertors; equivalent circuits; insulated gate bipolar transistors; power bipolar transistors; power semiconductor diodes; wind power plants; IGBT current tailing; PWM power converter operating point; analytical averaged equivalent circuit model; averaged switch modeling; critical losses; diode reverse-recovery; dominant loss mechanisms; energy capture; light load; operational characteristics; power IGBTs; power diodes; switching loss variations prediction; wind power generation; Circuit analysis; Diodes; Equivalent circuits; Insulated gate bipolar transistors; Laboratories; Predictive models; Pulse width modulation converters; Switches; Switching loss; Wind energy generation;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.826111
