Joint Charge and Thermal Management for Batteries in Portable Systems With Hybrid Power Sources
- Authors
- Xie, Qing; Shin, Donghwa; Chang, Naehyuck; Pedram, Massoud
- Issue Date
- Apr-2016
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Aging; battery; charge management; forced convection cooling; hybrid power source; supercapacitor; thermal management
- Citation
- IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS, v.35, no.4, pp.611 - 622
- Journal Title
- IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS
- Volume
- 35
- Number
- 4
- Start Page
- 611
- End Page
- 622
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39378
- DOI
- 10.1109/TCAD.2015.2474410
- ISSN
- 0278-0070
- Abstract
- This paper introduces a joint charge and thermal management problem for batteries in a battery-supercapacitor hybrid power source of a portable system, which has been equipped with a forced convection cooling technique, such as a fan. A key consideration in such a system is that the battery aging depends strongly on the battery temperature, which is in turn a function of the workload running on the device and the control policy for the fan. More precisely, this paper presents a hierarchical algorithm for maximizing the battery lifespan under given workload conditions. The algorithm relies on a combination of reinforcement learning and dynamic programming techniques. Simulation results show that the proposed algorithm achieves up to 2x improvements in battery lifespan, resulting in completion of up to 80% additional workload before the battery expires.
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Collections - College of Information Technology > Department of Smart Systems Software > 1. Journal Articles
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