Discrete-time battery models for system-level low-power design
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Battery voltage modeling for portable systems
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Hierarchical hybrid power supply networks
Proceedings of the 47th Design Automation Conference
Hybrid electrical energy storage systems
Proceedings of the 16th ACM/IEEE international symposium on Low power electronics and design
An analytical model for predicting the remaining battery capacity of lithium-ion batteries
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
DC–DC Converter-Aware Power Management for Low-Power Embedded Systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Proceedings of the 49th Annual Design Automation Conference
Networked architecture for hybrid electrical energy storage systems
Proceedings of the 49th Annual Design Automation Conference
Dynamic reconfiguration of photovoltaic energy harvesting system in hybrid electric vehicles
Proceedings of the 2012 ACM/IEEE international symposium on Low power electronics and design
Online fault detection and tolerance for photovoltaic energy harvesting systems
Proceedings of the International Conference on Computer-Aided Design
Optimal control of a grid-connected hybrid electrical energy storage system for homes
Proceedings of the Conference on Design, Automation and Test in Europe
Proceedings of the Conference on Design, Automation and Test in Europe
Improving charging efficiency with workload scheduling in energy harvesting embedded systems
Proceedings of the 50th Annual Design Automation Conference
Hybrid energy storage systems and battery management for electric vehicles
Proceedings of the 50th Annual Design Automation Conference
DATE '12 Proceedings of the Conference on Design, Automation and Test in Europe
State of health aware charge management in hybrid electrical energy storage systems
DATE '12 Proceedings of the Conference on Design, Automation and Test in Europe
Proceedings of the Ninth IEEE/ACM/IFIP International Conference on Hardware/Software Codesign and System Synthesis
| Hi-index | 0.00 |
Electrical energy is high-quality form of energy, and thus it is beneficial to store the excessive electric energy in the electrical energy storage (EES) rather than converting into a different type of energy. Like memory devices, no single type of EES element can fulfill all the desirable requirements. Despite active research on the new EES technologies, it is not likely to have an ultimate high-efficiency, high-power/energy capacity, low-cost, and long-cycle life EES element in the near future. We propose an HEES system that consists of two or more heterogeneous EES elements, thereby realizing the advantages of each EES element while hiding their weaknesses. The HEES management problems can be broken into charge allocation into different banks of EES elements, charge replacement (i.e., discharge) from different banks of EES elements, and charge migration from one bank to another bank of EES elements. In spite of the optimal charge allocation and replacement, charge migration is mandatory to leverage the EES system efficiency. This paper is the first paper that formally describes the charge migration efficiency and its optimization. We first define the charge migration architecture and the corresponding charge migration problem. We provide a systematic solution for a single source and single destination charge migration considering the efficiency of the charger and power converter, the rate capacity effect of the storage element, the terminal voltage variation of the storage element as a function of the state of charge (SoC), and so on. Experimental results for an HEES system comprising of banks of batteries and supercapacitors demonstrate a migration efficiency improvement up to 51.3%, for supercapacitor to battery and supercapacitor to supercapacitor charge migration.