Title :
Bidirectional hybrid Battery/Ultracapacitor Energy Storage Systems for next generation MVDC shipboard power systems
Author :
Tang, Yichao ; Khaligh, Alireza
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Maryland, College Park, MD, USA
Abstract :
This paper presents a hybrid Battery/Ultracapacitor Energy Storage System (BUCESS) for next generation shipboard systems. A new configuration of the battery and ultracapacitor combined system is introduced for propulsion systems and pulse power loads. The batteries and ultracapacitors are charged and discharged at high power levels through a dual active bridge and a bidirectional double-boost converter. The converters are optimally designed to control the bidirectional power flow for batteries and ultracapacitors, independently, and to ensure constant voltage regulation of ultracapacitors during charging and discharging. The design guidelines and control schemes are provided for the proposed new topology. Finally, a double-input BUCESS unit is designed, analyzed and simulated to investigate different operation modes of the hybrid energy storage system.
Keywords :
hybrid power systems; load flow control; power convertors; secondary cells; ships; supercapacitors; topology; voltage control; bidirectional double-boost converter; bidirectional hybrid battery-ultracapacitor energy storage system; bidirectional power flow control; control schemes; double-input BUCESS unit; dual active bridge; high power levels; next generation MVDC shipboard power system; propulsion systems; pulse power loads; voltage regulation; Batteries; Capacitors; Generators; Inductors; Load flow; Switches; Topology; battery; dual active bridge; energy storage system; phase-shift soft switching; ship; ultracapacitor;
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2011 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-61284-248-6
Electronic_ISBN :
Pending
DOI :
10.1109/VPPC.2011.6043097
