Electrolytic capacitor life time calculation under varying operating conditions

Bayesian Framework Approach for Prognostic Studies in Electrolytic Capacitor under Thermal Overstress Conditions

Electrolytic capacitors are used in several applications ranging from power supplies for safety critical avionics equipment to power drivers for electro-mechanical actuators. Past experiences show that capacitors tend to degrade and fail faster when subjected to high electrical or thermal stress conditions during operations. This makes them good candidates for prognostics and health management....

Electrolytic Capacitor Online Failure Detection and Life Prediction Methodology

Various basic, efficient and cheap techniques are used for the purpose of life forecast and failure detection of aluminum electrolytic capacitors which are utilized as a part of many power electronic converters. The main idea of these techniques is to calculate the values of Equivalent Series Resistance (ESR) and Capacitance (C). Observing the ESR values, valuation of changes in voltage and cur...

Accelerated Ageing of Aluminum Electrolytic Capacitor

Electrolytic capacitors are extensively used in filtering and power decoupling in power electronic converters. Low cost and high energy density of these capacitors make them popular. However, these capacitors degrade with age due to heating and evaporation of electrolyte. This process may take about 2 to 7 years depending on the application, ambient conditions and capacitor construction. This p...

Realization of a Smart Electrolytic Capacitor Circuit

Label Switched Paths Re-configuration under Time-Varying Traffic Conditions

Multiprotocol label switching (MPLS) has several advantages over destination-based IP routing protocols: it allows to setup end to end paths explicitly (also called label switched paths, LSP), to better monitor the traffic on these LSPs, to perform admission control, etc. While routing along a LSP is considered faster than IP routing, the operation of changing a LSP pipe requires processing and...