COREVIA Application Guide
Aluminum Electrolytic Capacitors for Energy Storage and Renewable Energy
Selection guidance for aluminum electrolytic capacitors in energy-storage converters and renewable-energy power electronics.
Energy Conversion Conditions
Account for cycling, ripple and installation temperature
Energy-storage and renewable-energy converters operate under changing power flow, ambient conditions and duty cycles. Capacitor selection should use the actual DC bus, ripple-current spectrum, thermal design, enclosure conditions, service profile and maintenance expectations.
Converter profile
Define DC voltage, transients, capacitance, ripple current, ESR and switching conditions.
Operating environment
Review ambient and hotspot temperature, airflow, enclosure rating and installation location.
Cycle and service life
Consider charge-discharge patterns, idle periods, mechanical fit and required endurance.