The DC-link film capacitor is an essential part of the traction inverters in electric vehicles. This paper focuses on DC-link capacitor degradation under different working conditions. A DC-link film capacitor was tested under three different voltage and temperature conditions until the capacitance dropped below 90% of the initial value. A two-stage capacitor degradation model is proposed to describe the capacitance decrease for EV applications. The experimental results verify the effectiveness of the proposed capacitor degradation model.
Degradation Analysis of The Metallized Film Capacitance under Various Conditions in EV Applications
2022-06-15
2611933 byte
Conference paper
Electronic Resource
English
SAE Technical Papers | 1993
SAE Technical Papers | 1995