An energy management method for multi-day cycle flight of high-altitude solar-powered aircraft
A solar-powered aircraft and energy management technology, applied in air transportation, high-efficiency propulsion technology, power plant types, etc., can solve problems such as narrow application conditions and incomplete energy utilization, reduce waste, increase carrying weight or power consumption, and improve The effect of gravitational potential energy storage
Active Publication Date: 2020-08-14
CHINA ACAD OF AEROSPACE AERODYNAMICS
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Problems solved by technology
It solves the shortcomings of incomplete energy utilization and narrow applicable conditions in the existing technology, and provides conditions for solar-powered aircraft to achieve optimal performance and optimal parameter design
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[0044] The system framework that the method of the present invention relies on, such as figure 1 shown. in:
[0045] The flight management computer is the core of on-board flight mission management. It is responsible for collecting flight parameters of functional systems such as flight control, energy, and propulsion in real time. It can predict the flight environment such as the peak value of photovoltaic input according to the calendar and flight altitude, and independently plan the flight path and altitude according to mission constraints. and other task profiles. And decompose the mode switching instruction of the mission profile into command input to the power supply controller of the energy system and the motor controller of the propulsion system.
[0046] Atmospheric data machines, global navigation satellite system (GNSS) receivers, etc. collect the altitude, speed, and time of the aircraft.
[0047] The role of the power controller is to adjust the output from the ...
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Disclosed is an energy management method for multi-day cycle flight of a high-altitude solar aircraft. In order to meet the set multi-day continuous flight conditions, system parameters such as the flight altitude, the photovoltaic output power, the power battery pack allowance at the current moment in the flight process are collected, power such as the charging and discharging power of a power battery pack and the input power of a propulsion system is distributed through a power supply controller. The photovoltaic peak power before and after the noon is fully utilized for climbing and charging of an aircraft, all photovoltaic output is utilized in the afternoon glide process, and thus maximum utilization of photovoltaic resources is achieved; when photovoltaic effective output is insufficient, the aircraft glides with the optimal maintenance power, and thus the synthetic loss of energy is minimized; and accordingly, the carrying capacity is improved, the geographical range and seasonal range of flight are enlarged, or the night flight altitude is increased, or the combination range of the flight conditions is expanded, and optimization of the applicability of the solar aircraft isachieved.
Description
technical field [0001] The invention relates to an energy management method during the multi-day cycle flight of a high-altitude solar-powered aircraft (including a solar-powered drone), which is used to expand the available range of the aircraft, including flight date, latitude and flight altitude, and belongs to the technical field of overall aircraft design. Background technique [0002] Under the given use boundary (latitude and season), given technical level (such as the weight of the solar cell array per unit area and the average output power level of the whole day, the energy storage capacity of the power battery pack per unit weight, etc.), the design principle of solar aircraft Follow the principles of weight balance and energy balance—that is, (1) the determined aircraft size (including the size of the solar array, the weight of the power battery pack and the corresponding accessories), satisfy the lift (proportional to the wing area) and gravity balance (2) Taking...
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IPC IPC(8): B64D27/24
CPCB64D27/24Y02T50/60
Inventor 仲维国张凯李喜乐周波郭林陈柽李广佳
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS