Multi-power-source hybrid power system and energy management method thereof

Abstract

The invention discloses a multi-power-source hybrid power system and an energy management method thereof. The system comprises an engine, an oil tank, a hybrid energy storage system, an airborne motorset, a motor propeller, an engine propeller, a clutch, a rectifier, an inverter, an electronic speed regulator, a state of charge estimation unit, a power generation/electric all-in-one machine and acontrol unit. A super capacitor and a storage battery pack are connected to form the hybrid energy storage system, the service life of the storage battery in an original aircraft hybrid power systemis prolonged, and the dynamic power supply performance is improved; in addition, a novel energy management method is provided for the multi-power-source hybrid power system composed of the storage battery pack, the super capacitor and the engine, the fuel utilization efficiency of the engine and the endurance mileage of an aircraft can be improved, the service life of the battery can be further prolonged, and the dynamic power supply characteristic can be further improved.

Description

technical field [0001] The invention belongs to the technical field of aviation aircraft, and specifically refers to a multi-power source hybrid power system and an energy management method thereof. Background technique [0002] In recent years, with the development and progress of science and technology, the world today has to face two severe problems, namely the rising energy demand and serious environmental pollution. With the development of engine and motor technology and the demand for energy saving and emission reduction, gasoline-electric hybrid technology has been successfully applied to automobiles and has been put into the market. However, the integration of hybrid technology in the aviation field is still in its infancy. If the key technologies of hybrid electric hybrid vehicles are used to meet the basic requirements of the flight environment and aircraft design, the mature hybrid hybrid technology will be improved. It can have a strong impact on the vast aviati...

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Problems solved by technology

[0007] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a multi-power source hybrid power system and its energy management method to solve the poor dynamic working characteristics of the storage battery and the lack of effective energy in the hybrid power system in the prior art. Problems such as the energy management method of the multi-power source hybrid power system; the present invention uses a supercapacitor to connect with a battery pack to form a hybrid energy

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