Presentation Title

Extended UAV Flight Time Using Combination Battery and Solar Array

Faculty Mentor

Rakeshkumar Mahto

Start Date

23-11-2019 10:45 AM

End Date

23-11-2019 11:30 AM

Location

148

Session

poster 4

Type of Presentation

Poster

Subject Area

engineering_computer_science

Abstract

Unmanned aerial vehicles (UAVs), or drones, rely on energy dense batteries. Typically, this means manufacturers will use Lithium-Polymer (LiPo) power sources. Due to a discharge to charge ratio which is greater than 1, drones have a very short flight time meaning that their application in many real-world scenarios such as rescue or surveillance are limited. However, due to the physical makeup of these batteries requiring specific charging cycles in the style of constant current-constant voltage (CC-CV), manufacturers can not just add a solar panel to the battery to charge while operating, or fatal errors or explosions may occur rendering the battery and the drone unusable. This research proposes a solution in the form of a LiPo battery array which will utilize a custom designed battery switching circuit to swap between charging and discharging for each battery in the array, thereby allowing one battery to charge after being disconnected from the load while the other powers the circuit. The simulation for this circuit was created in NI Multisim and shows positive results when running a voltage over time analysis of the circuit. However, due to the aforementioned discharge to charge ratio, continuous, all-day, flight is not possible with the current version of the system. Future versions, on the other hand, show high promise of fulfilling this through the use of larger arrays or more efficient batteries.

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Nov 23rd, 10:45 AM Nov 23rd, 11:30 AM

Extended UAV Flight Time Using Combination Battery and Solar Array

148

Unmanned aerial vehicles (UAVs), or drones, rely on energy dense batteries. Typically, this means manufacturers will use Lithium-Polymer (LiPo) power sources. Due to a discharge to charge ratio which is greater than 1, drones have a very short flight time meaning that their application in many real-world scenarios such as rescue or surveillance are limited. However, due to the physical makeup of these batteries requiring specific charging cycles in the style of constant current-constant voltage (CC-CV), manufacturers can not just add a solar panel to the battery to charge while operating, or fatal errors or explosions may occur rendering the battery and the drone unusable. This research proposes a solution in the form of a LiPo battery array which will utilize a custom designed battery switching circuit to swap between charging and discharging for each battery in the array, thereby allowing one battery to charge after being disconnected from the load while the other powers the circuit. The simulation for this circuit was created in NI Multisim and shows positive results when running a voltage over time analysis of the circuit. However, due to the aforementioned discharge to charge ratio, continuous, all-day, flight is not possible with the current version of the system. Future versions, on the other hand, show high promise of fulfilling this through the use of larger arrays or more efficient batteries.