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14 October 2021 Research on estimation method of starting voltage of power battery in high power laser system
Yahui Ren, Yong Tong, Rui Wang, Juping Lin, Qiang Zhang
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Proceedings Volume 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation; 119300N (2021) https://doi.org/10.1117/12.2611494
Event: International Conference on Mechanical Engineering, Measurement Control, and Instrumentation (MEMCI 2021), 2021, Guangzhou, China
Abstract
Power battery is the energy source of high power laser system. The starting voltage is the key index to judge the working state of power battery. In order to estimate the power battery voltage and optimize the power supply control effect of high power laser system, based on the measured data of power cell, the least square method was used to fit the internal resistance curve, and the expression of the starting voltage of the power battery was deduced, which was applied to the evaluation test of the energy storage battery in the high power laser system. The application results show that the accuracy of starting voltage estimation of a certain type of lithium titanate power battery can reach more than 95%, which effectively meets the demand of system power supply control. The function fitting and the method of power battery starting voltage derivation developed in this paper are universal and provide a reference for the starting voltage estimation of other types of battery cells and other related application conditions.
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Yahui Ren, Yong Tong, Rui Wang, Juping Lin, and Qiang Zhang "Research on estimation method of starting voltage of power battery in high power laser system", Proc. SPIE 11930, International Conference on Mechanical Engineering, Measurement Control, and Instrumentation, 119300N (14 October 2021); https://doi.org/10.1117/12.2611494
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KEYWORDS
Resistance
High power lasers
Laser systems engineering
Power supplies
Lithium
Analytical research
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