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A New Data-Stream-Mining-Based Battery Equalization Method
- Source :
- Energies, Volume 8, Issue 7, Pages 6543-6565, Energies, Vol 8, Iss 7, Pp 6543-6565 (2015)
- Publication Year :
- 2015
- Publisher :
- MDPI AG, 2015.
-
Abstract
- Balancing battery cells is a key task for battery management systems (BMS). Imbalances of cells decrease the capacity and lifetime of the battery pack. Many balancing topologies and strategies have been proposed to balance the electric charges among cells and most of the intelligent control strategies select cells (to shuttle charges) by comparing their terminal voltages. However, the nature of battery equalization is to balance the energy stored in individual cells. The measured terminal voltage is just an external characteristic and cannot accurately reflect the state of charge (SOC) of the cell, especially in a noisy environment. Additionally, when the consistencies of cells are very poor, balancing the cells with terminal voltages will lead to serious errors. In this paper, we introduced a novel battery balancing method, in which the charge-balancing criterion was not the cell voltage, but the shuttling capacities among cells. Data stream mining (DSM) technique was used to calculate the shuttling capacities. A single switched capacitor (SSC) based cell balancing topology was used to test the performance of the proposed method. With the obtained summary information, the cells, the sequence, and the quantity of the equalized charge can be decided automatically by the proposed algorithm. The simulation and experiment results have shown that the proposed method was effective and convenient.
- Subjects :
- single switched capacitor (SSC)
Battery (electricity)
Engineering
Control and Optimization
state of charge (SOC)
Energy Engineering and Power Technology
battery management systems (BMS)
data stream mining (DSM)
Network topology
lcsh:Technology
jel:Q40
Hardware_GENERAL
jel:Q
jel:Q43
jel:Q42
jel:Q41
Electronic engineering
jel:Q48
jel:Q47
Electrical and Electronic Engineering
Engineering (miscellaneous)
jel:Q49
lcsh:T
Renewable Energy, Sustainability and the Environment
business.industry
Data stream mining
jel:Q0
Switched capacitor
jel:Q4
Battery pack
State of charge
Terminal (electronics)
business
Energy (miscellaneous)
Voltage
Subjects
Details
- ISSN :
- 19961073
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- Energies
- Accession number :
- edsair.doi.dedup.....147113abcaef9fe1cd073fd6a2c5027f