Design for Hybrid Super-Capacitor / Battery Systems in Pulsed Power Applications

摘要

A hybrid super-capacitor/battery system is disclosed (particularly under high pulsed power and low temperature conditions) which allows an existing battery system to ride through transient loading and provide excellent energy density and power density under practical loading conditions.

主权项

1. A system comprising:
a hybrid super-capacitor/battery system comprising a super-capacitor unit comprising one or more super-capacitors and a battery unit comprising one or more battery cells; a DC/DC converter allowing charging and discharging of said super-capacitors; and a power control system comprising an inner voltage control loop comprising a voltage controller and an outer current control loop comprising a current controller, said inner voltage control loop providing control of a load voltage to maintain a commanded value in a required range and regulating the voltage near the battery output voltage, said outer current control loop providing said command value and controlling a current of said battery unit to a predetermined set-point based on required operating conditions, said set point configured to allow output of said battery unit to be load-leveled and to allow said super-capacitor unit to provide a pulsed power needed by a load.