Unmanned aerial vehicle energy management system

Abstract

The invention discloses an unmanned aerial vehicle energy management system which comprises a vehicle-mounted backup energy storage unit, a rapid charging unit and a battery management unit. The output end of the vehicle-mounted backup energy storage unit and the output end of the battery management unit are connected to the input end of the rapid charging unit. The vehicle-mounted backup energy storage unit comprises a vehicle-mounted generator or a mains supply, a charger and a backup energy storage device. The unmanned aerial vehicle energy management system has the advantages that the battery safety is ensured; the service life of a battery is prolonged; the charging time is shortened, and the charging efficiency is improved; the usage environment of the battery is widened; a diesel generator in the prior art is omitted, the battery of an external unmanned aerial vehicle is directly charged by directly using a backup battery, the whole vehicle operating efficiency is improved, the cost is reduced, and the system saves energy and is environmentally friendly; the energy conversion efficiency is improved by adopting a DC-DC charging system; the battery is adopted as an energy source, the overall power is related to the output power of the battery, and improvement of the charging output power of a whole vehicle is promoted.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle control, and in particular relates to an energy management system for an unmanned aerial vehicle. Background technique [0002] At present, drones mostly adopt the traditional power distribution method in terms of overall power distribution, which mainly has the following disadvantages: [0003] 1. The safety of the battery is poor [0004] Most drones now use model-grade batteries, and the main body is packaged in a heat-shrinkable tube, which has poor material strength. During daily use, it is easy to cause liquid leakage due to acupuncture or bumping, and the voltage cable of the battery cell is exposed outside, which is prone to short-circuit explosion hazards, and its safety is poor; [0005] 2. The battery life is short [0006] The aircraft model battery does not have a single voltage and charge and discharge current monitoring function during use. When the drone is opera...

AI Technical Summary

Problems solved by technology

[0003] 1. The safety of the battery is poor

[0004] Most drones now use model-grade batteries, and the body is packaged in a heat-shrinkable tube, which has poor material strength.

During daily use, it is easy to cause liquid leakage due to acupuncture or bumping, and the voltage cable of the battery cell is exposed outside, which is prone to short-circuit explosion hazards, and its safety is poor;

[0005] 2. The battery life is short

[0006] The aircraft model battery does not have a single voltage and charge and discharge current monitoring function during use. When the drone is operating with a heavy load, the battery voltage will be over-discharged, and there will be a voltage overcharge when the charger is used to charge the battery. , both of these situations will damage the battery, and this damage is often irreparable, resulting in reduced battery usage times and shortened service life;

[0007] 3. The charging time of the battery is long

Under continuous high-load work, the temperature of the battery rises rapidly, and the aircraft model battery has no heat dissipation function. When the outdoor temperature is lower than -20 degrees in Xinjiang and other plateau areas, the battery cannot provide power and cannot meet the requirements of drone operations;

[0011] 5. Due to the original charging and power distribution scheme, the operation efficiency of the plant protection drone is low;

[0012] 6. In the daily operation of agricultural plant protection drones, it is necessary to ensure the normal supply of batteries and improve operating efficiency. However, there is no outdoor mains supply to provide chargers for charging. Generators are required, but the cost of generators is high, and the energy conversion efficiency is low. Exhaust gas polluted environment

The battery temperature of the diesel generator is high and the battery cannot be charged normally, and the overall operating efficiency is low

[0013] 7. The original discharge machine adopts the direct charging method, and the efficiency of energy conversion is relatively low;

[0014] 8. The output power of the generator and the mains is limited, and it is difficult to meet the high-power charging demand;

[0015] 9. The charging equipment that can be connected to the previous charging equipment is limited, and can only charge a fixed number of batteries, and the scalability is very poor

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