研究目的
To analyze the possibility of continuous flight for a solar rechargeable airplane by evaluating power efficiency, energy requirements, and design parameters.
研究成果
The simulation tool effectively evaluates the feasibility of continuous solar flight for UAVs, providing insights into power management and design parameters. It demonstrates that with optimal conditions, continuous flight is achievable, and highlights areas for improvement, such as implementing more detailed models for payload control and solar incidence angles.
研究不足
The analysis tool uses simplified models, such as the Duffie and Beckman irradiance model without accounting for real-time angle of incidence of solar rays, and lacks dynamic climbing strategy selection or real flight models for UAV and motor regulators. Future improvements are suggested to enhance accuracy.
1：Experimental Design and Method Selection:
The methodology involves simulation using an analysis tool based on environmental and design parameters, incorporating models for irradiance, energy systems, and UAV flight. The Duffie and Beckman irradiance model is used for calculating solar energy availability.
2：Sample Selection and Data Sources:
Simulation parameters are chosen for an average UAV in Kyiv, Ukraine, on August 1, 2018, with specific inputs like location, solar cell area, battery capacity, and power requirements.
3：List of Experimental Equipment and Materials:
The tool includes functional blocks such as Location Irradiance, Irradiance to Power converter, Battery Bank Power System, and Flight Controller, simulating components like solar panels, batteries, and MPPT converters.
4：Experimental Procedures and Operational Workflow:
The simulation runs over a 48-hour timeframe, tracking internal states of subsystems, including power distribution, battery state of charge, and altitude changes. It involves phases like initial daylight flight, night flight, and continuous flight assessment.
5：Data Analysis Methods:
Results are analyzed through graphical comparisons of available power, used power, charge power, and battery state of charge to evaluate continuous flight feasibility and design improvements.
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