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Capacitor lifetime monitoring for multilevel modular capacitor clamped DC to DC converter
Author(s)
Date Issued
August 12, 2011
Type
Conference Paper
Abstract
Capacitor lifetime monitoring for multilevel modular capacitor clamped dc to dc converter (M2C3) are presented in this paper. M 2C3 can supply a multilevel dc output voltage by using capacitors and power switches together with a method of charge and discharge balance. Each capacitor lifetime is somehow various; the higher voltage will lead to a shorter lifetime of a capacitor than the low voltage one. It is complex to monitor many capacitors in M2C3 using a capacitor lifetime model because this model complexity has a mathematical model and nonlinear variables. Therefore, the prediction of capacitor lifetime methodology is proposed in this research by utilizing principal component regression model (PCR). A M2C3 1-kW prototype is developed. The experimental results are also performed to monitor a capacitor lifetime. The results show that PCR can be used to predict a capacitor life time in M2C3 application: for this reason, the reliability of using M2C3 can be increased. © 2011 IEEE.
Citation
Ecti Con 2011 8th Electrical Engineering Electronics Computer Telecommunications and Information Technology Ecti Association of Thailand Conference 2011, 719-722, 2011