A Low Complexity Control System for a Hybrid DC Power Source Based on Ultracapacitor-Lead-Acid Battery Configuration

A dc hybrid power source based on the combination of ultracapacitor and lead-acid battery is considered in this paper. The various control systems for such hybrid power source reported in the technical literature thus far are rather complex. A low complexity control system for such hybrid power sour...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2014-06, Vol.29 (6), p.2882-2891
Main Authors: Hredzak, Branislav, Agelidis, Vassilios G., Demetriades, Georgios D.
Format: Article
Language:English
Subjects:
Applied sciences
Batteries
Complexity
Control systems
Dielectric, amorphous and glass solid devices
Direct current
Electric currents
Electric potential
Electrical engineering. Electrical power engineering
Electrical machines
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Energy storage
Exact sciences and technology
Frequencies
Hybrid power systems
Hybrid systems
Kalman filters
Lead acid batteries
power electronics
Power electronics, power supplies
Power sources
power supplies
Regulation and control
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Supercapacitors
System-on-chip
Voltage
Voltage measurement
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Summary:A dc hybrid power source based on the combination of ultracapacitor and lead-acid battery is considered in this paper. The various control systems for such hybrid power source reported in the technical literature thus far are rather complex. A low complexity control system for such hybrid power source is proposed in this paper. The key feature of the proposed control system is its capability to maintain operation of the hybrid power source within all important operational limits. The proposed control system allows one to allocate the high-frequency current demands to the ultracapacitor and specify the current limits for both the battery and the ultracapacitor. It also maintains operation of the battery within its state of charge limits and the ultracapacitor voltage at a predefined value while charging the ultracapacitor from the battery rather than from the common dc bus. Presented experimental results verify the satisfactory operation of the power source utilizing the proposed control system.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2013.2277518