[01] Anastasia Shcherban, Instrument-making Department, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine. [02] Vitalii Larin, Department of Aviation Computer Integrated Systems, National Aviation University of Ukraine, Kyiv, Ukraine. [03] Volodymyr Maslov, Department of Physics and Technological Bases of Sensory Materials, V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Kyiv, Ukraine. [04] Nataliya Kachur, Department of Physics and Technological Bases of Sensory Materials, V. Lashkaryov Institute of Semiconductor Physics NAS of Ukraine, Kyiv, Ukraine. [05] Tatiana Turu, Instrument-making Department, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine.

The article presents the most used types of rechargeable stand-alone power supplies, trends in the control of the state of the most common of them - Lithium-Polymer Rechargeable Batteries (LPRBs) during their work, especially when using the latter for powering unmanned aerial vehicles (UAV). The necessity of such control for the qualitative result is showed. In this work, for the first time studied is the possibility of two-parameter diagnostic and controlling the lithium-polymer accumulators used in unmanned aerial vehicles. The aim of study was developing of a new method for non-destructive testing and diagnosing the Li-Pol accumulators that took to account fact that electrochemical processes are accompanied by heat phenomena. We were using thermal imaging method for study heating and cooling of battery in process of its work for establishing connection between temperature and degree of discharging of battery. Being based on experimental investigations, the authors found the one-valued dependence between the chosen LPAB parameters (output voltage and internal temperature) and residual time for battery operation. With account of this relation, to diagnose the state of the battery during the drone flight one can perform the first diagnostic test of new LPAB before the flight, and the obtained individual characteristics that will be recorded to the drone memory and further used to come to the necessary decisions of ceasing or prolonging the drone operation. Investigations on the temperature phenomena of Li-Pol batteries are a new scientific and practical direction, which may allow not only to create control systems, but also to improve the batteries themselves.

Thermal Imager, Non-Destructive Control, Lithium-Polymeric Rechargeable Battery, Unmanned Aerial Vehicle

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