Safe Operating Area of DC-Link Film Capacitors
Shuai Liu, Zhan Shen, Huai Wang
Abstract
This letter proposes a safe operating area (SOA) concept for film capacitors in dc-link applications. The SOA is presented by capacitor voltage and ripple current, considering the impact of ambient temperature, degradation, and parameter variance. The theoretical derivations and proof-of-concept experimental verifications are given.
Topics & Concepts
CapacitorLink (geometry)Electrical engineeringFilm capacitorComputer scienceEngineeringMaterials scienceVoltageComputer networkSilicon Carbide Semiconductor TechnologiesElectromagnetic Compatibility and Noise SuppressionElectrostatic Discharge in Electronics