Title :
Heat transfer model for capacitor banks
Author :
Gasperi, Michael L. ; Gollhardt, Neil
Author_Institution :
Rockwell Autom., Milwaukee, WI, USA
Abstract :
The life expectancy of aluminum electrolytic capacitors used for DC bus filtering in motor drives depends upon their operating temperature. This paper discusses convection and radiation heat transfer from capacitor banks and presents a heat transfer model for banks of capacitors that can be used to estimate temperature rise. The model is verified with experimental data and is further extended by using computational fluid dynamics and radiation theory. Bank design options are explored for their impact on bank cooling efficiency.
Keywords :
convection; cooling; electrolytic capacitors; heat radiation; numerical analysis; power capacitors; thermal analysis; DC bus filtering; aluminum electrolytic capacitors; bank cooling efficiency; bank design options; computational fluid dynamics; convection; heat transfer model; life expectancy; motor drives; operating temperature; power capacitor banks; radiation; radiation theory; temperature rise estimation; Aluminum; Automation; Capacitors; Cooling; Equations; Heat transfer; Motor drives; Resistance heating; Temperature; Testing;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.730299
