Hybrid power energy management control system for new energy unmanned aerial vehicle fuel cell

Abstract

The invention relates to a hybrid power energy management control system for a new energy unmanned aerial vehicle fuel cell. The hybrid power energy management control system comprises a DSP energy management controller and three power converters, wherein the three power converters are connected to the energy management controller through signal lines respectively; the energy management controlleris a minimum system based on DSP28335, and the output of the power converters can be controlled while the state of the system is monitored, namely the power of the fuel cell and the power of a lithium battery are controlled. The current working condition is judged according to the power requirement of a load at every moment and the SOC of the battery by using a control strategy based on a state machine, and the output power of two batteries is controlled in real time according to a power distribution rule in the state. The fuel cell is taken as a main power supply for providing most load power, the lithium battery plays a role of power compensation when the load changes, the disadvantages of output power of the fuel cell are compensated when the power is high, and unnecessary output powerfor the fuel cell is recycled to play a role of peak shaving.

Description

technical field [0001] The invention belongs to an energy management control device, which is used for a new energy fuel cell unmanned aerial vehicle and controls the output power of its hybrid power supply system. The output power of the fuel cell and lithium battery can be adjusted according to the power demand of the load and the state of charge (SOC) of the lithium battery and other system variables, and the bus voltage of the load can be stabilized at the same time. Background technique [0002] With the development of society, the problems of energy crisis and environmental pollution are becoming more and more severe, people are trying to find solutions to replace traditional fossil fuels. In recent years, new energy sources are becoming a research hotspot. New energy sources such as solar energy, wind energy, and hydrogen energy have attracted much attention due to their large reserves and no pollution. [0003] Traditional piston-type drones are noisy when they work...

AI Technical Summary

Problems solved by technology

However, most of the current research on UAV hybrid power supply EMS is aimed at the control strategy. The purpose is to optimize the control algorithm to achieve the requirements of reducing hydrogen consumption and improving economy. Usually, it is only simulation verification, and experiments often rely on semi-physical platforms. carried out, and does not take into account the realization of EMS

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