DocumentCode :
234185
Title :
Control of solar system´s battery voltage based on state of charge estimation (SOC)
Author :
Hajizadeh, Amin ; Shahirinia, Amir Hossein ; Arabameri, Saeed ; Yu, David C.
Author_Institution :
Dept. of Electr. Eng., Shahrood Univ. of Technol., Shahrood, Iran
fYear :
2014
fDate :
19-22 Oct. 2014
Firstpage :
162
Lastpage :
167
Abstract :
One of the most prevalently used in renewable energies is solar energy. Solar sources are used in many applications such as mobile energy, home energy usage and so on. Solar systems can directly convert the solar radiation into electricity. This paper presents a low-cost and adaptive control strategies for lithium-ion battery as an energy storage of solar systems. For optimizing and actually safe operation of lithium-ion, battery voltage and also SOC are very essential values so to have a high-quality control system, the SOC of the battery should be estimated accurately by a low - error method for solar system´s battery unit. A Thevenin model has been designed. The SOC estimation has received for logical accuracy. To get better accurateness and robustness of the SOC estimation and control strategy, we added a new method for identification of voltage and SOC graph nonlinear part. By the simulation result, it shows the excellent central role, and it can be applied by the software changes and unused programming to another similar system.
Keywords :
adaptive control; identification; lithium; secondary cells; solar power; sunlight; voltage control; Li; SOC estimation; Thevenin model; adaptive control strategy; energy storage; high-quality control system; lithium-ion battery; logical accuracy; low-cost control strategy; low-error method; nonlinear SOC graph; renewable energy; solar energy; solar radiation; solar sources; solar system battery unit; solar system battery voltage control; state of charge estimation; voltage identification; Batteries; Estimation; Mathematical model; Solar system; System-on-chip; Voltage control; Voltage measurement; Control strategy; Lithium-ion battery; Solar system; state of charge (SOC);
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Renewable Energy Research and Application (ICRERA), 2014 International Conference on
Conference_Location :
Milwaukee, WI
Type :
conf
DOI :
10.1109/ICRERA.2014.7016550
Filename :
7016550
Link To Document :
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