Predicting Operating Temperature and Expected Lifetime of Aluminum-Electrolytic BusCapacitors with Thermal Modeling

FREE-DOWNLOAD SG Parler Jr… – Presented at PCIM/ …
Abstract ! Large-can aluminum electrolytic capaci- tors are widely used as bus capacitors in
variable-speed drives, UPS systems and inverter power systems. Accu- rate thermal modeling
of the capacitor’s internal tem- perature is needed to predict life, and this is a challenge